Table of Contents
A
Adhikari, Neil D.
- You have accessRestricted AccessGUN4-Porphyrin Complexes Bind the ChlH/GUN5 Subunit of Mg-Chelatase and Promote Chlorophyll Biosynthesis in ArabidopsisNeil D. Adhikari, John E. Froehlich, Deserah D. Strand, Stephanie M. Buck, David M. Kramer, Robert M. LarkinPlant Cell Apr 2011, 23 (4) 1449-1467; DOI: https://doi.org/10.1105/tpc.110.082503
We show that GUN4-porphyrin complexes help to channel protoporphyrin IX into chlorophyll biosynthesis by binding to the ChlH subunit of Mg-chelatase with a higher affinity than unliganded GUN4 on Arabidopsis chloroplast membranes. GUN4 and ChlH used distinct mechanisms to associate with chloroplast membranes, and mutant alleles of GUN4 and Mg-chelatase subunit genes cause sensitivity to intense light.
Albani, Maria C.
- Open AccessAa TFL1 Confers an Age-Dependent Response to Vernalization in Perennial Arabis alpinaRenhou Wang, Maria C. Albani, Coral Vincent, Sara Bergonzi, Ming Luan, Yan Bai, Christiane Kiefer, Rosa Castillo, George CouplandPlant Cell Apr 2011, 23 (4) 1307-1321; DOI: https://doi.org/10.1105/tpc.111.083451
Many plants must reach a certain age before they will flower in response to environmental cues. Perennial Arabis alpina plants are shown not to respond to vernalization until they are 5 weeks old. This effect is found to require the Aa TFL1 gene, which blocks induction of Aa LFY when young plants are exposed to cold.
Alexander, Danny C.
- Open AccessA Sister Group Contrast Using Untargeted Global Metabolomic Analysis Delineates the Biochemical Regulation Underlying Desiccation Tolerance in Sporobolus stapfianusMelvin J. Oliver, Lining Guo, Danny C. Alexander, John A. Ryals, Bernard W.M. Wone, John C. CushmanPlant Cell Apr 2011, 23 (4) 1231-1248; DOI: https://doi.org/10.1105/tpc.110.082800
The desiccation-tolerant Sporobolus stapfianus and desiccation-sensitive Sporobolus pyramidalis form a sister group contrast to investigate adaptive metabolic responses to dehydration using untargeted global metabolomic analysis. The metabolic profiles obtained reveal a state of preparedness and a cascade of biochemical regulation strategies critical to the survival of S. stapfianus under desiccation.
Angelovici, Ruthie
- You have accessRestricted AccessCoordinated Gene Networks Regulating Arabidopsis Plant Metabolism in Response to Various Stresses and Nutritional CuesHadar Less, Ruthie Angelovici, Vered Tzin, Gad GaliliPlant Cell Apr 2011, 23 (4) 1264-1271; DOI: https://doi.org/10.1105/tpc.110.082867
This work introduces a bioinformatics approach that identifies positive and negative coordination of gene expression between sets of genes, or entire gene networks, in response to environmental or developmental cues. The approach is illustrated by a case study that identifies distinct expression behavior of the energy-associated gene network in response to different biotic and abiotic stresses.
Antolín-Llovera, Meritxell
- You have accessRestricted AccessMultilevel Control of Arabidopsis 3-Hydroxy-3-Methylglutaryl Coenzyme A Reductase by Protein Phosphatase 2APablo Leivar, Meritxell Antolín-Llovera, Sergi Ferrero, Marta Closa, Montserrat Arró, Albert Ferrer, Albert Boronat, Narciso CamposPlant Cell Apr 2011, 23 (4) 1494-1511; DOI: https://doi.org/10.1105/tpc.110.074278
HMG-CoA reductase has a key role in the regulation of the mevalonate pathway for isoprenoid biosynthesis and is modulated by many diverse endogenous and environmental stimuli. In this work, protein phosphatase 2A emerges as a positive and negative multilevel regulator of plant HMG-CoA reductase during normal development and in response to a variety of stress conditions.
Antonicelli, Gerardo E.
- You have accessRestricted AccessIdentification of Novel Plant Peroxisomal Targeting Signals by a Combination of Machine Learning Methods and in Vivo Subcellular Targeting AnalysesThomas Lingner, Amr R. Kataya, Gerardo E. Antonicelli, Aline Benichou, Kjersti Nilssen, Xiong-Yan Chen, Tanja Siemsen, Burkhard Morgenstern, Peter Meinicke, Sigrun ReumannPlant Cell Apr 2011, 23 (4) 1556-1572; DOI: https://doi.org/10.1105/tpc.111.084095
Two different prediction methods for Arabidopsis proteins carrying peroxisome targeting signals type 1 (PTS1) are described. Validation of many novel targeting signals and Arabidopsis PTS1 proteins by in vivo localization experiments demonstrates a high prediction accuracy of the new methods.
Aoyama, Takashi
- Open Accessd-myo-Inositol-3-Phosphate Affects Phosphatidylinositol-Mediated Endomembrane Function in Arabidopsis and Is Essential for Auxin-Regulated EmbryogenesisYu Luo, Genji Qin, Jun Zhang, Yuan Liang, Yingqi Song, Meiping Zhao, Tomohiko Tsuge, Takashi Aoyama, Jingjing Liu, Hongya Gu, Li-Jia QuPlant Cell Apr 2011, 23 (4) 1352-1372; DOI: https://doi.org/10.1105/tpc.111.083337
This work reveals the significant roles of myo-inositol in Arabidopsis embryogenesis. Experiments show that depletion of myo-inositol by knocking out multiple MIPS genes, which encode d-myo-inositol-3-phosphate synthase, could affect the membrane trafficking via the phosphatidylinositol metabolism by leading to altered auxin distribution in developing embryos.
Arrighi, Jean-François
- You have accessRestricted AccessArabidopsis thaliana High-Affinity Phosphate Transporters Exhibit Multiple Levels of Posttranslational RegulationVincent Bayle, Jean-François Arrighi, Audrey Creff, Claude Nespoulous, Jérôme Vialaret, Michel Rossignol, Esperanza Gonzalez, Javier Paz-Ares, Laurent NussaumePlant Cell Apr 2011, 23 (4) 1523-1535; DOI: https://doi.org/10.1105/tpc.110.081067
In Arabidopsis, the PHOSPHATE TRANSPORTER1 (PHT1) family encodes the high affinity phosphate transporters. This analysis revealed multiple steps of regulation in various cell compartments modulating the level of PHT1 proteins present in the plasma membrane in response to the level of inorganic phosphate.
Arró, Montserrat
- You have accessRestricted AccessMultilevel Control of Arabidopsis 3-Hydroxy-3-Methylglutaryl Coenzyme A Reductase by Protein Phosphatase 2APablo Leivar, Meritxell Antolín-Llovera, Sergi Ferrero, Marta Closa, Montserrat Arró, Albert Ferrer, Albert Boronat, Narciso CamposPlant Cell Apr 2011, 23 (4) 1494-1511; DOI: https://doi.org/10.1105/tpc.110.074278
HMG-CoA reductase has a key role in the regulation of the mevalonate pathway for isoprenoid biosynthesis and is modulated by many diverse endogenous and environmental stimuli. In this work, protein phosphatase 2A emerges as a positive and negative multilevel regulator of plant HMG-CoA reductase during normal development and in response to a variety of stress conditions.
B
Bai, Yan
- Open AccessAa TFL1 Confers an Age-Dependent Response to Vernalization in Perennial Arabis alpinaRenhou Wang, Maria C. Albani, Coral Vincent, Sara Bergonzi, Ming Luan, Yan Bai, Christiane Kiefer, Rosa Castillo, George CouplandPlant Cell Apr 2011, 23 (4) 1307-1321; DOI: https://doi.org/10.1105/tpc.111.083451
Many plants must reach a certain age before they will flower in response to environmental cues. Perennial Arabis alpina plants are shown not to respond to vernalization until they are 5 weeks old. This effect is found to require the Aa TFL1 gene, which blocks induction of Aa LFY when young plants are exposed to cold.
Bastien, Olivier
- You have accessRestricted AccessPrediction of Regulatory Interactions from Genome Sequences Using a Biophysical Model for the Arabidopsis LEAFY Transcription FactorEdwige Moyroud, Eugenio Gómez Minguet, Felix Ott, Levi Yant, David Posé, Marie Monniaux, Sandrine Blanchet, Olivier Bastien, Emmanuel Thévenon, Detlef Weigel, Markus Schmid, François ParcyPlant Cell Apr 2011, 23 (4) 1293-1306; DOI: https://doi.org/10.1105/tpc.111.083329
This work presents the generation of a predictive model describing the DNA recognition specificity of the LEAFY floral transcription factor. The model is used to predict in vivo regulatory interactions between LEAFY and its target genes from mere inspection of various plant genome sequences.
Bayle, Vincent
- You have accessRestricted AccessArabidopsis thaliana High-Affinity Phosphate Transporters Exhibit Multiple Levels of Posttranslational RegulationVincent Bayle, Jean-François Arrighi, Audrey Creff, Claude Nespoulous, Jérôme Vialaret, Michel Rossignol, Esperanza Gonzalez, Javier Paz-Ares, Laurent NussaumePlant Cell Apr 2011, 23 (4) 1523-1535; DOI: https://doi.org/10.1105/tpc.110.081067
In Arabidopsis, the PHOSPHATE TRANSPORTER1 (PHT1) family encodes the high affinity phosphate transporters. This analysis revealed multiple steps of regulation in various cell compartments modulating the level of PHT1 proteins present in the plasma membrane in response to the level of inorganic phosphate.
Benichou, Aline
- You have accessRestricted AccessIdentification of Novel Plant Peroxisomal Targeting Signals by a Combination of Machine Learning Methods and in Vivo Subcellular Targeting AnalysesThomas Lingner, Amr R. Kataya, Gerardo E. Antonicelli, Aline Benichou, Kjersti Nilssen, Xiong-Yan Chen, Tanja Siemsen, Burkhard Morgenstern, Peter Meinicke, Sigrun ReumannPlant Cell Apr 2011, 23 (4) 1556-1572; DOI: https://doi.org/10.1105/tpc.111.084095
Two different prediction methods for Arabidopsis proteins carrying peroxisome targeting signals type 1 (PTS1) are described. Validation of many novel targeting signals and Arabidopsis PTS1 proteins by in vivo localization experiments demonstrates a high prediction accuracy of the new methods.
Benning, Christoph
- Open AccessSystems Biology Approach in Chlamydomonas Reveals Connections between Copper Nutrition and Multiple Metabolic StepsMadeli Castruita, David Casero, Steven J. Karpowicz, Janette Kropat, Astrid Vieler, Scott I. Hsieh, Weihong Yan, Shawn Cokus, Joseph A. Loo, Christoph Benning, Matteo Pellegrini, Sabeeha S. MerchantPlant Cell Apr 2011, 23 (4) 1273-1292; DOI: https://doi.org/10.1105/tpc.111.084400
RNA-seq assessment of the transcriptome of autotrophic and heterotrophic Chlamydomonas as a function of copper nutrition reveals changes in redox metabolism regulated by CRR1, an SBP domain transcription factor. The changes in RNA abundance impact the abundance of specific plastid-localized proteins and the level of saturation of plastid galactolipids.
Bergonzi, Sara
- Open AccessAa TFL1 Confers an Age-Dependent Response to Vernalization in Perennial Arabis alpinaRenhou Wang, Maria C. Albani, Coral Vincent, Sara Bergonzi, Ming Luan, Yan Bai, Christiane Kiefer, Rosa Castillo, George CouplandPlant Cell Apr 2011, 23 (4) 1307-1321; DOI: https://doi.org/10.1105/tpc.111.083451
Many plants must reach a certain age before they will flower in response to environmental cues. Perennial Arabis alpina plants are shown not to respond to vernalization until they are 5 weeks old. This effect is found to require the Aa TFL1 gene, which blocks induction of Aa LFY when young plants are exposed to cold.
Bertoni, Gregory
- You have accessRestricted AccessGlobal Analysis of Copper Responsiveness in ChlamydomonasGregory BertoniPlant Cell Apr 2011, 23 (4) 1188; DOI: https://doi.org/10.1105/tpc.111.230411
Billoud, Bernard
- You have accessRestricted AccessETOILE Regulates Developmental Patterning in the Filamentous Brown Alga Ectocarpus siliculosusAude Le Bail, Bernard Billoud, Sophie Le Panse, Sabine Chenivesse, Bénédicte CharrierPlant Cell Apr 2011, 23 (4) 1666-1678; DOI: https://doi.org/10.1105/tpc.110.081919
By means of a combination of experimental and modeling approaches applied to the hyperbranching mutant étoile, cell–cell communication, likely mediated by novel transmembrane proteins that share similarities with metazoan Notch receptors, was shown to account for the establishment of filament patterning and cell differentiation in the filamentous brown alga Ectocarpus siliculosus.
Blanchet, Sandrine
- You have accessRestricted AccessPrediction of Regulatory Interactions from Genome Sequences Using a Biophysical Model for the Arabidopsis LEAFY Transcription FactorEdwige Moyroud, Eugenio Gómez Minguet, Felix Ott, Levi Yant, David Posé, Marie Monniaux, Sandrine Blanchet, Olivier Bastien, Emmanuel Thévenon, Detlef Weigel, Markus Schmid, François ParcyPlant Cell Apr 2011, 23 (4) 1293-1306; DOI: https://doi.org/10.1105/tpc.111.083329
This work presents the generation of a predictive model describing the DNA recognition specificity of the LEAFY floral transcription factor. The model is used to predict in vivo regulatory interactions between LEAFY and its target genes from mere inspection of various plant genome sequences.
Boens, Shannah
- You have accessRestricted AccessThe Arabidopsis thaliana Checkpoint Kinase WEE1 Protects against Premature Vascular Differentiation during Replication StressToon Cools, Anelia Iantcheva, Annika K. Weimer, Shannah Boens, Naoki Takahashi, Sara Maes, Hilde Van den Daele, Gert Van Isterdael, Arp Schnittger, Lieven De VeylderPlant Cell Apr 2011, 23 (4) 1435-1448; DOI: https://doi.org/10.1105/tpc.110.082768
Because of their sessile lifestyle, plants need to react promptly to factors that affect meristem integrity. This work shows that the WEE1 checkpoint kinase maintains the root meristem activity under replication stress by controlling S-phase progression, thereby preventing premature onset of vascular cell differentiation.
Boronat, Albert
- You have accessRestricted AccessMultilevel Control of Arabidopsis 3-Hydroxy-3-Methylglutaryl Coenzyme A Reductase by Protein Phosphatase 2APablo Leivar, Meritxell Antolín-Llovera, Sergi Ferrero, Marta Closa, Montserrat Arró, Albert Ferrer, Albert Boronat, Narciso CamposPlant Cell Apr 2011, 23 (4) 1494-1511; DOI: https://doi.org/10.1105/tpc.110.074278
HMG-CoA reductase has a key role in the regulation of the mevalonate pathway for isoprenoid biosynthesis and is modulated by many diverse endogenous and environmental stimuli. In this work, protein phosphatase 2A emerges as a positive and negative multilevel regulator of plant HMG-CoA reductase during normal development and in response to a variety of stress conditions.
Bou-Torrent, Jordi
- You have accessRestricted AccessA DELLA in Disguise: SPATULA Restrains the Growth of the Developing Arabidopsis SeedlingEve-Marie Josse, Yinbo Gan, Jordi Bou-Torrent, Kelly L. Stewart, Alison D. Gilday, Christopher E. Jeffree, Fabián E. Vaistij, Jaime F. Martínez-García, Ferenc Nagy, Ian A. Graham, Karen J. HallidayPlant Cell Apr 2011, 23 (4) 1337-1351; DOI: https://doi.org/10.1105/tpc.110.082594
This study examines the role of the PHYTOCHROME INTERACTING FACTOR3 homolog SPATULA (SPT) in the control of the developing seedling and shows that SPT is a potent regulator of cotyledon size, acting in parallel to DELLAs. As DELLAs negatively regulate SPT abundance, the light regulation of DELLAs drives the DELLA-SPT counterbalance, enforcing growth restraint across a range of ambient light conditions that are prevalent in nature.
Brain, Anthony P.R.
- You have accessRestricted AccessPhotoprotective Energy Dissipation Involves the Reorganization of Photosystem II Light-Harvesting Complexes in the Grana Membranes of Spinach ChloroplastsMatthew P. Johnson, Tomasz K. Goral, Christopher D.P. Duffy, Anthony P.R. Brain, Conrad W. Mullineaux, Alexander V. RubanPlant Cell Apr 2011, 23 (4) 1468-1479; DOI: https://doi.org/10.1105/tpc.110.081646
The rapidly reversible macrostructural changes in higher-plant chloroplast thylakoid membrane organization accompanying photoprotective energy dissipation (qE) are studied using freeze-fracture electron and laser confocal microscopy. qE is shown to involve the aggregation of light-harvesting complexes and their segregation from photosystem II.
Buck, Stephanie M.
- You have accessRestricted AccessGUN4-Porphyrin Complexes Bind the ChlH/GUN5 Subunit of Mg-Chelatase and Promote Chlorophyll Biosynthesis in ArabidopsisNeil D. Adhikari, John E. Froehlich, Deserah D. Strand, Stephanie M. Buck, David M. Kramer, Robert M. LarkinPlant Cell Apr 2011, 23 (4) 1449-1467; DOI: https://doi.org/10.1105/tpc.110.082503
We show that GUN4-porphyrin complexes help to channel protoporphyrin IX into chlorophyll biosynthesis by binding to the ChlH subunit of Mg-chelatase with a higher affinity than unliganded GUN4 on Arabidopsis chloroplast membranes. GUN4 and ChlH used distinct mechanisms to associate with chloroplast membranes, and mutant alleles of GUN4 and Mg-chelatase subunit genes cause sensitivity to intense light.
C
Campos, Narciso
- You have accessRestricted AccessMultilevel Control of Arabidopsis 3-Hydroxy-3-Methylglutaryl Coenzyme A Reductase by Protein Phosphatase 2APablo Leivar, Meritxell Antolín-Llovera, Sergi Ferrero, Marta Closa, Montserrat Arró, Albert Ferrer, Albert Boronat, Narciso CamposPlant Cell Apr 2011, 23 (4) 1494-1511; DOI: https://doi.org/10.1105/tpc.110.074278
HMG-CoA reductase has a key role in the regulation of the mevalonate pathway for isoprenoid biosynthesis and is modulated by many diverse endogenous and environmental stimuli. In this work, protein phosphatase 2A emerges as a positive and negative multilevel regulator of plant HMG-CoA reductase during normal development and in response to a variety of stress conditions.
Casero, David
- Open AccessSystems Biology Approach in Chlamydomonas Reveals Connections between Copper Nutrition and Multiple Metabolic StepsMadeli Castruita, David Casero, Steven J. Karpowicz, Janette Kropat, Astrid Vieler, Scott I. Hsieh, Weihong Yan, Shawn Cokus, Joseph A. Loo, Christoph Benning, Matteo Pellegrini, Sabeeha S. MerchantPlant Cell Apr 2011, 23 (4) 1273-1292; DOI: https://doi.org/10.1105/tpc.111.084400
RNA-seq assessment of the transcriptome of autotrophic and heterotrophic Chlamydomonas as a function of copper nutrition reveals changes in redox metabolism regulated by CRR1, an SBP domain transcription factor. The changes in RNA abundance impact the abundance of specific plastid-localized proteins and the level of saturation of plastid galactolipids.
Castillo, Rosa
- Open AccessAa TFL1 Confers an Age-Dependent Response to Vernalization in Perennial Arabis alpinaRenhou Wang, Maria C. Albani, Coral Vincent, Sara Bergonzi, Ming Luan, Yan Bai, Christiane Kiefer, Rosa Castillo, George CouplandPlant Cell Apr 2011, 23 (4) 1307-1321; DOI: https://doi.org/10.1105/tpc.111.083451
Many plants must reach a certain age before they will flower in response to environmental cues. Perennial Arabis alpina plants are shown not to respond to vernalization until they are 5 weeks old. This effect is found to require the Aa TFL1 gene, which blocks induction of Aa LFY when young plants are exposed to cold.
Castruita, Madeli
- Open AccessSystems Biology Approach in Chlamydomonas Reveals Connections between Copper Nutrition and Multiple Metabolic StepsMadeli Castruita, David Casero, Steven J. Karpowicz, Janette Kropat, Astrid Vieler, Scott I. Hsieh, Weihong Yan, Shawn Cokus, Joseph A. Loo, Christoph Benning, Matteo Pellegrini, Sabeeha S. MerchantPlant Cell Apr 2011, 23 (4) 1273-1292; DOI: https://doi.org/10.1105/tpc.111.084400
RNA-seq assessment of the transcriptome of autotrophic and heterotrophic Chlamydomonas as a function of copper nutrition reveals changes in redox metabolism regulated by CRR1, an SBP domain transcription factor. The changes in RNA abundance impact the abundance of specific plastid-localized proteins and the level of saturation of plastid galactolipids.
Charrier, Bénédicte
- You have accessRestricted AccessETOILE Regulates Developmental Patterning in the Filamentous Brown Alga Ectocarpus siliculosusAude Le Bail, Bernard Billoud, Sophie Le Panse, Sabine Chenivesse, Bénédicte CharrierPlant Cell Apr 2011, 23 (4) 1666-1678; DOI: https://doi.org/10.1105/tpc.110.081919
By means of a combination of experimental and modeling approaches applied to the hyperbranching mutant étoile, cell–cell communication, likely mediated by novel transmembrane proteins that share similarities with metazoan Notch receptors, was shown to account for the establishment of filament patterning and cell differentiation in the filamentous brown alga Ectocarpus siliculosus.
Chen, Guoxing
- Open AccessRice APOPTOSIS INHIBITOR5 Coupled with Two DEAD-Box Adenosine 5′-Triphosphate-Dependent RNA Helicases Regulates Tapetum DegenerationXingwang Li, Xinqiang Gao, Yi Wei, Li Deng, Yidan Ouyang, Guoxing Chen, Xianghua Li, Qifa Zhang, Changyin WuPlant Cell Apr 2011, 23 (4) 1416-1434; DOI: https://doi.org/10.1105/tpc.110.082636
This study examines the role of API5, a homolog of animal antiapoptosis proteins, in the degeneration of the tapetum during the formation of male gametophytes in rice. It describes a previously unknown pathway for regulating programmed cell death, one that may be conserved among eukaryotic organisms.
Chen, Xiong-Yan
- You have accessRestricted AccessIdentification of Novel Plant Peroxisomal Targeting Signals by a Combination of Machine Learning Methods and in Vivo Subcellular Targeting AnalysesThomas Lingner, Amr R. Kataya, Gerardo E. Antonicelli, Aline Benichou, Kjersti Nilssen, Xiong-Yan Chen, Tanja Siemsen, Burkhard Morgenstern, Peter Meinicke, Sigrun ReumannPlant Cell Apr 2011, 23 (4) 1556-1572; DOI: https://doi.org/10.1105/tpc.111.084095
Two different prediction methods for Arabidopsis proteins carrying peroxisome targeting signals type 1 (PTS1) are described. Validation of many novel targeting signals and Arabidopsis PTS1 proteins by in vivo localization experiments demonstrates a high prediction accuracy of the new methods.
Chen, Zhixiang
- You have accessRestricted AccessPhosphorylation of a WRKY Transcription Factor by Two Pathogen-Responsive MAPKs Drives Phytoalexin Biosynthesis in ArabidopsisGuohong Mao, Xiangzong Meng, Yidong Liu, Zuyu Zheng, Zhixiang Chen, Shuqun ZhangPlant Cell Apr 2011, 23 (4) 1639-1653; DOI: https://doi.org/10.1105/tpc.111.084996
WRKY33 functions downstream of pathogen-responsive MPK3 and MPK6 in reprogramming the expression of camalexin biosynthetic genes; this drives the metabolic flow to camalexin production in Arabidopsis challenged by pathogens. Biochemical and genetic analyses demonstrate that the phosphorylation of WRKY33 by MPK3/MPK6 plays an important role in the process.
Chenivesse, Sabine
- You have accessRestricted AccessETOILE Regulates Developmental Patterning in the Filamentous Brown Alga Ectocarpus siliculosusAude Le Bail, Bernard Billoud, Sophie Le Panse, Sabine Chenivesse, Bénédicte CharrierPlant Cell Apr 2011, 23 (4) 1666-1678; DOI: https://doi.org/10.1105/tpc.110.081919
By means of a combination of experimental and modeling approaches applied to the hyperbranching mutant étoile, cell–cell communication, likely mediated by novel transmembrane proteins that share similarities with metazoan Notch receptors, was shown to account for the establishment of filament patterning and cell differentiation in the filamentous brown alga Ectocarpus siliculosus.
Cheung, Alice Y.
- You have accessRestricted AccessRAC/ROP GTPases and Auxin SignalingHen-ming Wu, Ora Hazak, Alice Y. Cheung, Shaul YalovskyPlant Cell Apr 2011, 23 (4) 1208-1218; DOI: https://doi.org/10.1105/tpc.111.083907
Choi, Giltsu
- You have accessRestricted AccessABI3 and PIL5 Collaboratively Activate the Expression of SOMNUS by Directly Binding to Its Promoter in Imbibed Arabidopsis SeedsJeongmoo Park, Nayoung Lee, Woohyun Kim, Soohwan Lim, Giltsu ChoiPlant Cell Apr 2011, 23 (4) 1404-1415; DOI: https://doi.org/10.1105/tpc.110.080721
This study examines the regulation of SOMNUS (SOM), which is a key negative regulator of seed germination. ABI3 was found to regulate SOM expression together with PIL5, a previously identified regulator of SOM. PIL5 and ABI3, which interact to form a complex, regulate SOM expression independently in maturing seeds, but collaboratively in imbibed seeds.
Closa, Marta
- You have accessRestricted AccessMultilevel Control of Arabidopsis 3-Hydroxy-3-Methylglutaryl Coenzyme A Reductase by Protein Phosphatase 2APablo Leivar, Meritxell Antolín-Llovera, Sergi Ferrero, Marta Closa, Montserrat Arró, Albert Ferrer, Albert Boronat, Narciso CamposPlant Cell Apr 2011, 23 (4) 1494-1511; DOI: https://doi.org/10.1105/tpc.110.074278
HMG-CoA reductase has a key role in the regulation of the mevalonate pathway for isoprenoid biosynthesis and is modulated by many diverse endogenous and environmental stimuli. In this work, protein phosphatase 2A emerges as a positive and negative multilevel regulator of plant HMG-CoA reductase during normal development and in response to a variety of stress conditions.
Clouse, Steven D.
- You have accessRestricted AccessBrassinosteroid Signal Transduction: From Receptor Kinase Activation to Transcriptional Networks Regulating Plant DevelopmentSteven D. ClousePlant Cell Apr 2011, 23 (4) 1219-1230; DOI: https://doi.org/10.1105/tpc.111.084475
Cokus, Shawn
- Open AccessSystems Biology Approach in Chlamydomonas Reveals Connections between Copper Nutrition and Multiple Metabolic StepsMadeli Castruita, David Casero, Steven J. Karpowicz, Janette Kropat, Astrid Vieler, Scott I. Hsieh, Weihong Yan, Shawn Cokus, Joseph A. Loo, Christoph Benning, Matteo Pellegrini, Sabeeha S. MerchantPlant Cell Apr 2011, 23 (4) 1273-1292; DOI: https://doi.org/10.1105/tpc.111.084400
RNA-seq assessment of the transcriptome of autotrophic and heterotrophic Chlamydomonas as a function of copper nutrition reveals changes in redox metabolism regulated by CRR1, an SBP domain transcription factor. The changes in RNA abundance impact the abundance of specific plastid-localized proteins and the level of saturation of plastid galactolipids.
Cools, Toon
- You have accessRestricted AccessThe Arabidopsis thaliana Checkpoint Kinase WEE1 Protects against Premature Vascular Differentiation during Replication StressToon Cools, Anelia Iantcheva, Annika K. Weimer, Shannah Boens, Naoki Takahashi, Sara Maes, Hilde Van den Daele, Gert Van Isterdael, Arp Schnittger, Lieven De VeylderPlant Cell Apr 2011, 23 (4) 1435-1448; DOI: https://doi.org/10.1105/tpc.110.082768
Because of their sessile lifestyle, plants need to react promptly to factors that affect meristem integrity. This work shows that the WEE1 checkpoint kinase maintains the root meristem activity under replication stress by controlling S-phase progression, thereby preventing premature onset of vascular cell differentiation.
Coupland, George
- Open AccessAa TFL1 Confers an Age-Dependent Response to Vernalization in Perennial Arabis alpinaRenhou Wang, Maria C. Albani, Coral Vincent, Sara Bergonzi, Ming Luan, Yan Bai, Christiane Kiefer, Rosa Castillo, George CouplandPlant Cell Apr 2011, 23 (4) 1307-1321; DOI: https://doi.org/10.1105/tpc.111.083451
Many plants must reach a certain age before they will flower in response to environmental cues. Perennial Arabis alpina plants are shown not to respond to vernalization until they are 5 weeks old. This effect is found to require the Aa TFL1 gene, which blocks induction of Aa LFY when young plants are exposed to cold.
Creff, Audrey
- You have accessRestricted AccessArabidopsis thaliana High-Affinity Phosphate Transporters Exhibit Multiple Levels of Posttranslational RegulationVincent Bayle, Jean-François Arrighi, Audrey Creff, Claude Nespoulous, Jérôme Vialaret, Michel Rossignol, Esperanza Gonzalez, Javier Paz-Ares, Laurent NussaumePlant Cell Apr 2011, 23 (4) 1523-1535; DOI: https://doi.org/10.1105/tpc.110.081067
In Arabidopsis, the PHOSPHATE TRANSPORTER1 (PHT1) family encodes the high affinity phosphate transporters. This analysis revealed multiple steps of regulation in various cell compartments modulating the level of PHT1 proteins present in the plasma membrane in response to the level of inorganic phosphate.
Cushman, John C.
- Open AccessA Sister Group Contrast Using Untargeted Global Metabolomic Analysis Delineates the Biochemical Regulation Underlying Desiccation Tolerance in Sporobolus stapfianusMelvin J. Oliver, Lining Guo, Danny C. Alexander, John A. Ryals, Bernard W.M. Wone, John C. CushmanPlant Cell Apr 2011, 23 (4) 1231-1248; DOI: https://doi.org/10.1105/tpc.110.082800
The desiccation-tolerant Sporobolus stapfianus and desiccation-sensitive Sporobolus pyramidalis form a sister group contrast to investigate adaptive metabolic responses to dehydration using untargeted global metabolomic analysis. The metabolic profiles obtained reveal a state of preparedness and a cascade of biochemical regulation strategies critical to the survival of S. stapfianus under desiccation.
D
Deng, Li
- Open AccessRice APOPTOSIS INHIBITOR5 Coupled with Two DEAD-Box Adenosine 5′-Triphosphate-Dependent RNA Helicases Regulates Tapetum DegenerationXingwang Li, Xinqiang Gao, Yi Wei, Li Deng, Yidan Ouyang, Guoxing Chen, Xianghua Li, Qifa Zhang, Changyin WuPlant Cell Apr 2011, 23 (4) 1416-1434; DOI: https://doi.org/10.1105/tpc.110.082636
This study examines the role of API5, a homolog of animal antiapoptosis proteins, in the degeneration of the tapetum during the formation of male gametophytes in rice. It describes a previously unknown pathway for regulating programmed cell death, one that may be conserved among eukaryotic organisms.
de Sena-Tomás, Carmen
- You have accessRestricted AccessThe DNA Damage Response Signaling Cascade Regulates Proliferation of the Phytopathogenic Fungus Ustilago maydis in PlantaCarmen de Sena-Tomás, Alfonso Fernández-Álvarez, William K. Holloman, José Pérez-MartínPlant Cell Apr 2011, 23 (4) 1654-1665; DOI: https://doi.org/10.1105/tpc.110.082552
This work shows that in the phytopathogenic fungus Ustilago maydis, the genetic pathway involved in the transmission of signals required for the response to DNA damage is also used to control the specific dikaryotic cell cycle that predominates proliferation in planta.
De Veylder, Lieven
- You have accessRestricted AccessThe Arabidopsis thaliana Checkpoint Kinase WEE1 Protects against Premature Vascular Differentiation during Replication StressToon Cools, Anelia Iantcheva, Annika K. Weimer, Shannah Boens, Naoki Takahashi, Sara Maes, Hilde Van den Daele, Gert Van Isterdael, Arp Schnittger, Lieven De VeylderPlant Cell Apr 2011, 23 (4) 1435-1448; DOI: https://doi.org/10.1105/tpc.110.082768
Because of their sessile lifestyle, plants need to react promptly to factors that affect meristem integrity. This work shows that the WEE1 checkpoint kinase maintains the root meristem activity under replication stress by controlling S-phase progression, thereby preventing premature onset of vascular cell differentiation.
Diggle, Pamela K.
- You have accessRestricted AccessCharles Darwin and the Origins of Plant Evolutionary Developmental BiologyWilliam E. Friedman, Pamela K. DigglePlant Cell Apr 2011, 23 (4) 1194-1207; DOI: https://doi.org/10.1105/tpc.111.084244
Ding, Shou-Wei
- Open AccessThe 21-Nucleotide, but Not 22-Nucleotide, Viral Secondary Small Interfering RNAs Direct Potent Antiviral Defense by Two Cooperative Argonautes in Arabidopsis thalianaXian-Bing Wang, Juan Jovel, Petchthai Udomporn, Ying Wang, Qingfa Wu, Wan-Xiang Li, Virginie Gasciolli, Herve Vaucheret, Shou-Wei DingPlant Cell Apr 2011, 23 (4) 1625-1638; DOI: https://doi.org/10.1105/tpc.110.082305
This work identifies cooperative action of ARGONAUTE1 and ARGONAUTE2 in virus resistance conferred by 21-nucleotide virus-derived small interfering RNAs (siRNAs). It also reveals that 22-nucleotide viral siRNAs do not guide efficient antiviral defense, demonstrating a qualitative difference between 21- and 22-nucleotide classes of siRNAs in RNA silencing.
Dixon, Richard A.
- Open AccessMATE2 Mediates Vacuolar Sequestration of Flavonoid Glycosides and Glycoside Malonates in Medicago truncatulaJian Zhao, David Huhman, Gail Shadle, Xian-Zhi He, Lloyd W. Sumner, Yuhong Tang, Richard A. DixonPlant Cell Apr 2011, 23 (4) 1536-1555; DOI: https://doi.org/10.1105/tpc.110.080804
This work identifies MATE2, which transports glycosylated flavonoids into the vacuole, showing higher transport efficiency with anthocyanins than other flavonoid glycosides, and an increase in transport efficiency for malonylated flavonoid glucosides. Null mutants of MATE2 show decreases of anthocyanins and increases in other flavonoids, such as seed proanthocyanidin.
Doležel, Jaroslav
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Duffy, Christopher D.P.
- You have accessRestricted AccessPhotoprotective Energy Dissipation Involves the Reorganization of Photosystem II Light-Harvesting Complexes in the Grana Membranes of Spinach ChloroplastsMatthew P. Johnson, Tomasz K. Goral, Christopher D.P. Duffy, Anthony P.R. Brain, Conrad W. Mullineaux, Alexander V. RubanPlant Cell Apr 2011, 23 (4) 1468-1479; DOI: https://doi.org/10.1105/tpc.110.081646
The rapidly reversible macrostructural changes in higher-plant chloroplast thylakoid membrane organization accompanying photoprotective energy dissipation (qE) are studied using freeze-fracture electron and laser confocal microscopy. qE is shown to involve the aggregation of light-harvesting complexes and their segregation from photosystem II.
E
Ebert, Berit
- Open AccessThe Interconversion of UDP-Arabinopyranose and UDP-Arabinofuranose Is Indispensable for Plant Development in ArabidopsisCarsten Rautengarten, Berit Ebert, Thomas Herter, Christopher J. Petzold, Tadashi Ishii, Aindrila Mukhopadhyay, Björn Usadel, Henrik Vibe SchellerPlant Cell Apr 2011, 23 (4) 1373-1390; DOI: https://doi.org/10.1105/tpc.111.083931
Incorporation of arabinose into plant cell wall polysaccharides requires conversion into the furanose form. This conversion is mediated exclusively by UDP-arabinose mutases (RGPs) located in the cytoplasm.
Eckardt, Nancy A.
- You have accessRestricted AccessFine-Tuning Photosynthesis: Structural Basis of Photoprotective Energy DissipationNancy A. EckardtPlant Cell Apr 2011, 23 (4) 1189; DOI: https://doi.org/10.1105/tpc.111.230412
- You have accessRestricted AccessInduction of Phytoalexin Biosynthesis: WRKY33 Is a Target of MAPK SignalingNancy A. EckardtPlant Cell Apr 2011, 23 (4) 1190; DOI: https://doi.org/10.1105/tpc.111.230413
Endo, Takashi
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
F
Felder, Marius
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Felippes, Felipe F.
- Open AccessNegative Regulation of Anthocyanin Biosynthesis in Arabidopsis by a miR156-Targeted SPL Transcription FactorJin-Ying Gou, Felipe F. Felippes, Chang-Jun Liu, Detlef Weigel, Jia-Wei WangPlant Cell Apr 2011, 23 (4) 1512-1522; DOI: https://doi.org/10.1105/tpc.111.084525
This work reveals that anthocyanin biosynthesis is coupled to floral transition by miR156-targeted SQUAMOSA PROMOTER BINDING PROTEIN-LIKE (SPL) genes. SPL negatively regulates anthocyanin accumulation by directly preventing expression of anthocyanin biosynthetic genes through destabilization of a MYB-bHLH-WD40 transcriptional activation complex.
Fernández-Álvarez, Alfonso
- You have accessRestricted AccessThe DNA Damage Response Signaling Cascade Regulates Proliferation of the Phytopathogenic Fungus Ustilago maydis in PlantaCarmen de Sena-Tomás, Alfonso Fernández-Álvarez, William K. Holloman, José Pérez-MartínPlant Cell Apr 2011, 23 (4) 1654-1665; DOI: https://doi.org/10.1105/tpc.110.082552
This work shows that in the phytopathogenic fungus Ustilago maydis, the genetic pathway involved in the transmission of signals required for the response to DNA damage is also used to control the specific dikaryotic cell cycle that predominates proliferation in planta.
Ferrer, Albert
- You have accessRestricted AccessMultilevel Control of Arabidopsis 3-Hydroxy-3-Methylglutaryl Coenzyme A Reductase by Protein Phosphatase 2APablo Leivar, Meritxell Antolín-Llovera, Sergi Ferrero, Marta Closa, Montserrat Arró, Albert Ferrer, Albert Boronat, Narciso CamposPlant Cell Apr 2011, 23 (4) 1494-1511; DOI: https://doi.org/10.1105/tpc.110.074278
HMG-CoA reductase has a key role in the regulation of the mevalonate pathway for isoprenoid biosynthesis and is modulated by many diverse endogenous and environmental stimuli. In this work, protein phosphatase 2A emerges as a positive and negative multilevel regulator of plant HMG-CoA reductase during normal development and in response to a variety of stress conditions.
Ferrero, Sergi
- You have accessRestricted AccessMultilevel Control of Arabidopsis 3-Hydroxy-3-Methylglutaryl Coenzyme A Reductase by Protein Phosphatase 2APablo Leivar, Meritxell Antolín-Llovera, Sergi Ferrero, Marta Closa, Montserrat Arró, Albert Ferrer, Albert Boronat, Narciso CamposPlant Cell Apr 2011, 23 (4) 1494-1511; DOI: https://doi.org/10.1105/tpc.110.074278
HMG-CoA reductase has a key role in the regulation of the mevalonate pathway for isoprenoid biosynthesis and is modulated by many diverse endogenous and environmental stimuli. In this work, protein phosphatase 2A emerges as a positive and negative multilevel regulator of plant HMG-CoA reductase during normal development and in response to a variety of stress conditions.
Friedman, William E.
- You have accessRestricted AccessCharles Darwin and the Origins of Plant Evolutionary Developmental BiologyWilliam E. Friedman, Pamela K. DigglePlant Cell Apr 2011, 23 (4) 1194-1207; DOI: https://doi.org/10.1105/tpc.111.084244
Froehlich, John E.
- You have accessRestricted AccessGUN4-Porphyrin Complexes Bind the ChlH/GUN5 Subunit of Mg-Chelatase and Promote Chlorophyll Biosynthesis in ArabidopsisNeil D. Adhikari, John E. Froehlich, Deserah D. Strand, Stephanie M. Buck, David M. Kramer, Robert M. LarkinPlant Cell Apr 2011, 23 (4) 1449-1467; DOI: https://doi.org/10.1105/tpc.110.082503
We show that GUN4-porphyrin complexes help to channel protoporphyrin IX into chlorophyll biosynthesis by binding to the ChlH subunit of Mg-chelatase with a higher affinity than unliganded GUN4 on Arabidopsis chloroplast membranes. GUN4 and ChlH used distinct mechanisms to associate with chloroplast membranes, and mutant alleles of GUN4 and Mg-chelatase subunit genes cause sensitivity to intense light.
Fukao, Yoichiro
- You have accessRestricted AccessAn Src Homology 3 Domain-Like Fold Protein Forms a Ferredoxin Binding Site for the Chloroplast NADH Dehydrogenase-Like Complex in ArabidopsisHiroshi Yamamoto, Lianwei Peng, Yoichiro Fukao, Toshiharu ShikanaiPlant Cell Apr 2011, 23 (4) 1480-1493; DOI: https://doi.org/10.1105/tpc.110.080291
Chloroplast NAD(P)H dehydrogenase (NDH) has been thought to function as an NAD(P)H:plastoquinone oxidoreductase in cyclic electron transport around photosystem I, although its electron donor binding site was unclear. This study indicates that CRR31, a novel NDH subunit, serves in the high-affinity binding of ferredoxin to NDH and proposes that chloroplast NDH is ferredoxin:plastoquinone oxidoreductase.
G
Galili, Gad
- You have accessRestricted AccessCoordinated Gene Networks Regulating Arabidopsis Plant Metabolism in Response to Various Stresses and Nutritional CuesHadar Less, Ruthie Angelovici, Vered Tzin, Gad GaliliPlant Cell Apr 2011, 23 (4) 1264-1271; DOI: https://doi.org/10.1105/tpc.110.082867
This work introduces a bioinformatics approach that identifies positive and negative coordination of gene expression between sets of genes, or entire gene networks, in response to environmental or developmental cues. The approach is illustrated by a case study that identifies distinct expression behavior of the energy-associated gene network in response to different biotic and abiotic stresses.
Gan, Yinbo
- You have accessRestricted AccessA DELLA in Disguise: SPATULA Restrains the Growth of the Developing Arabidopsis SeedlingEve-Marie Josse, Yinbo Gan, Jordi Bou-Torrent, Kelly L. Stewart, Alison D. Gilday, Christopher E. Jeffree, Fabián E. Vaistij, Jaime F. Martínez-García, Ferenc Nagy, Ian A. Graham, Karen J. HallidayPlant Cell Apr 2011, 23 (4) 1337-1351; DOI: https://doi.org/10.1105/tpc.110.082594
This study examines the role of the PHYTOCHROME INTERACTING FACTOR3 homolog SPATULA (SPT) in the control of the developing seedling and shows that SPT is a potent regulator of cotyledon size, acting in parallel to DELLAs. As DELLAs negatively regulate SPT abundance, the light regulation of DELLAs drives the DELLA-SPT counterbalance, enforcing growth restraint across a range of ambient light conditions that are prevalent in nature.
Gao, Xinqiang
- Open AccessRice APOPTOSIS INHIBITOR5 Coupled with Two DEAD-Box Adenosine 5′-Triphosphate-Dependent RNA Helicases Regulates Tapetum DegenerationXingwang Li, Xinqiang Gao, Yi Wei, Li Deng, Yidan Ouyang, Guoxing Chen, Xianghua Li, Qifa Zhang, Changyin WuPlant Cell Apr 2011, 23 (4) 1416-1434; DOI: https://doi.org/10.1105/tpc.110.082636
This study examines the role of API5, a homolog of animal antiapoptosis proteins, in the degeneration of the tapetum during the formation of male gametophytes in rice. It describes a previously unknown pathway for regulating programmed cell death, one that may be conserved among eukaryotic organisms.
Gasciolli, Virginie
- Open AccessThe 21-Nucleotide, but Not 22-Nucleotide, Viral Secondary Small Interfering RNAs Direct Potent Antiviral Defense by Two Cooperative Argonautes in Arabidopsis thalianaXian-Bing Wang, Juan Jovel, Petchthai Udomporn, Ying Wang, Qingfa Wu, Wan-Xiang Li, Virginie Gasciolli, Herve Vaucheret, Shou-Wei DingPlant Cell Apr 2011, 23 (4) 1625-1638; DOI: https://doi.org/10.1105/tpc.110.082305
This work identifies cooperative action of ARGONAUTE1 and ARGONAUTE2 in virus resistance conferred by 21-nucleotide virus-derived small interfering RNAs (siRNAs). It also reveals that 22-nucleotide viral siRNAs do not guide efficient antiviral defense, demonstrating a qualitative difference between 21- and 22-nucleotide classes of siRNAs in RNA silencing.
Gilday, Alison D.
- You have accessRestricted AccessA DELLA in Disguise: SPATULA Restrains the Growth of the Developing Arabidopsis SeedlingEve-Marie Josse, Yinbo Gan, Jordi Bou-Torrent, Kelly L. Stewart, Alison D. Gilday, Christopher E. Jeffree, Fabián E. Vaistij, Jaime F. Martínez-García, Ferenc Nagy, Ian A. Graham, Karen J. HallidayPlant Cell Apr 2011, 23 (4) 1337-1351; DOI: https://doi.org/10.1105/tpc.110.082594
This study examines the role of the PHYTOCHROME INTERACTING FACTOR3 homolog SPATULA (SPT) in the control of the developing seedling and shows that SPT is a potent regulator of cotyledon size, acting in parallel to DELLAs. As DELLAs negatively regulate SPT abundance, the light regulation of DELLAs drives the DELLA-SPT counterbalance, enforcing growth restraint across a range of ambient light conditions that are prevalent in nature.
Gonzalez, Esperanza
- You have accessRestricted AccessArabidopsis thaliana High-Affinity Phosphate Transporters Exhibit Multiple Levels of Posttranslational RegulationVincent Bayle, Jean-François Arrighi, Audrey Creff, Claude Nespoulous, Jérôme Vialaret, Michel Rossignol, Esperanza Gonzalez, Javier Paz-Ares, Laurent NussaumePlant Cell Apr 2011, 23 (4) 1523-1535; DOI: https://doi.org/10.1105/tpc.110.081067
In Arabidopsis, the PHOSPHATE TRANSPORTER1 (PHT1) family encodes the high affinity phosphate transporters. This analysis revealed multiple steps of regulation in various cell compartments modulating the level of PHT1 proteins present in the plasma membrane in response to the level of inorganic phosphate.
Goral, Tomasz K.
- You have accessRestricted AccessPhotoprotective Energy Dissipation Involves the Reorganization of Photosystem II Light-Harvesting Complexes in the Grana Membranes of Spinach ChloroplastsMatthew P. Johnson, Tomasz K. Goral, Christopher D.P. Duffy, Anthony P.R. Brain, Conrad W. Mullineaux, Alexander V. RubanPlant Cell Apr 2011, 23 (4) 1468-1479; DOI: https://doi.org/10.1105/tpc.110.081646
The rapidly reversible macrostructural changes in higher-plant chloroplast thylakoid membrane organization accompanying photoprotective energy dissipation (qE) are studied using freeze-fracture electron and laser confocal microscopy. qE is shown to involve the aggregation of light-harvesting complexes and their segregation from photosystem II.
Goto, Shino
- You have accessRestricted AccessArabidopsis ABERRANT PEROXISOME MORPHOLOGY9 Is a Peroxin That Recruits the PEX1-PEX6 Complex to PeroxisomesShino Goto, Shoji Mano, Chihiro Nakamori, Mikio NishimuraPlant Cell Apr 2011, 23 (4) 1573-1587; DOI: https://doi.org/10.1105/tpc.110.080770
This study identifies APEM9 as an essential factor for peroxisomal protein transport in plants. APEM9 proteins have unique amino acid sequences, which are distinct from that of Pex26 functional homologs in mammals.
Gou, Jin-Ying
- Open AccessNegative Regulation of Anthocyanin Biosynthesis in Arabidopsis by a miR156-Targeted SPL Transcription FactorJin-Ying Gou, Felipe F. Felippes, Chang-Jun Liu, Detlef Weigel, Jia-Wei WangPlant Cell Apr 2011, 23 (4) 1512-1522; DOI: https://doi.org/10.1105/tpc.111.084525
This work reveals that anthocyanin biosynthesis is coupled to floral transition by miR156-targeted SQUAMOSA PROMOTER BINDING PROTEIN-LIKE (SPL) genes. SPL negatively regulates anthocyanin accumulation by directly preventing expression of anthocyanin biosynthetic genes through destabilization of a MYB-bHLH-WD40 transcriptional activation complex.
Graham, Ian A.
- You have accessRestricted AccessA DELLA in Disguise: SPATULA Restrains the Growth of the Developing Arabidopsis SeedlingEve-Marie Josse, Yinbo Gan, Jordi Bou-Torrent, Kelly L. Stewart, Alison D. Gilday, Christopher E. Jeffree, Fabián E. Vaistij, Jaime F. Martínez-García, Ferenc Nagy, Ian A. Graham, Karen J. HallidayPlant Cell Apr 2011, 23 (4) 1337-1351; DOI: https://doi.org/10.1105/tpc.110.082594
This study examines the role of the PHYTOCHROME INTERACTING FACTOR3 homolog SPATULA (SPT) in the control of the developing seedling and shows that SPT is a potent regulator of cotyledon size, acting in parallel to DELLAs. As DELLAs negatively regulate SPT abundance, the light regulation of DELLAs drives the DELLA-SPT counterbalance, enforcing growth restraint across a range of ambient light conditions that are prevalent in nature.
Graner, Andreas
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Gu, Hongya
- Open Accessd-myo-Inositol-3-Phosphate Affects Phosphatidylinositol-Mediated Endomembrane Function in Arabidopsis and Is Essential for Auxin-Regulated EmbryogenesisYu Luo, Genji Qin, Jun Zhang, Yuan Liang, Yingqi Song, Meiping Zhao, Tomohiko Tsuge, Takashi Aoyama, Jingjing Liu, Hongya Gu, Li-Jia QuPlant Cell Apr 2011, 23 (4) 1352-1372; DOI: https://doi.org/10.1105/tpc.111.083337
This work reveals the significant roles of myo-inositol in Arabidopsis embryogenesis. Experiments show that depletion of myo-inositol by knocking out multiple MIPS genes, which encode d-myo-inositol-3-phosphate synthase, could affect the membrane trafficking via the phosphatidylinositol metabolism by leading to altered auxin distribution in developing embryos.
Gundlach, Heidrun
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Guo, Lining
- Open AccessA Sister Group Contrast Using Untargeted Global Metabolomic Analysis Delineates the Biochemical Regulation Underlying Desiccation Tolerance in Sporobolus stapfianusMelvin J. Oliver, Lining Guo, Danny C. Alexander, John A. Ryals, Bernard W.M. Wone, John C. CushmanPlant Cell Apr 2011, 23 (4) 1231-1248; DOI: https://doi.org/10.1105/tpc.110.082800
The desiccation-tolerant Sporobolus stapfianus and desiccation-sensitive Sporobolus pyramidalis form a sister group contrast to investigate adaptive metabolic responses to dehydration using untargeted global metabolomic analysis. The metabolic profiles obtained reveal a state of preparedness and a cascade of biochemical regulation strategies critical to the survival of S. stapfianus under desiccation.
H
Halliday, Karen J.
- You have accessRestricted AccessA DELLA in Disguise: SPATULA Restrains the Growth of the Developing Arabidopsis SeedlingEve-Marie Josse, Yinbo Gan, Jordi Bou-Torrent, Kelly L. Stewart, Alison D. Gilday, Christopher E. Jeffree, Fabián E. Vaistij, Jaime F. Martínez-García, Ferenc Nagy, Ian A. Graham, Karen J. HallidayPlant Cell Apr 2011, 23 (4) 1337-1351; DOI: https://doi.org/10.1105/tpc.110.082594
This study examines the role of the PHYTOCHROME INTERACTING FACTOR3 homolog SPATULA (SPT) in the control of the developing seedling and shows that SPT is a potent regulator of cotyledon size, acting in parallel to DELLAs. As DELLAs negatively regulate SPT abundance, the light regulation of DELLAs drives the DELLA-SPT counterbalance, enforcing growth restraint across a range of ambient light conditions that are prevalent in nature.
Hardtke, Christian S.
- Open AccessMobile Gibberellin Directly Stimulates Arabidopsis Hypocotyl Xylem ExpansionLaura Ragni, Kaisa Nieminen, David Pacheco-Villalobos, Richard Sibout, Claus Schwechheimer, Christian S. HardtkePlant Cell Apr 2011, 23 (4) 1322-1336; DOI: https://doi.org/10.1105/tpc.111.084020
In this study, the authors find that the expansion of the xylem in Arabidopsis hypocotyls observed upon flowering is directly triggered by signaling through the plant hormone gibberellin. The authors also demonstrate that this involves mobile gibberellin, which therefore can act as a long-distance signal.
Hazak, Ora
- You have accessRestricted AccessRAC/ROP GTPases and Auxin SignalingHen-ming Wu, Ora Hazak, Alice Y. Cheung, Shaul YalovskyPlant Cell Apr 2011, 23 (4) 1208-1218; DOI: https://doi.org/10.1105/tpc.111.083907
He, Xian-Zhi
- Open AccessMATE2 Mediates Vacuolar Sequestration of Flavonoid Glycosides and Glycoside Malonates in Medicago truncatulaJian Zhao, David Huhman, Gail Shadle, Xian-Zhi He, Lloyd W. Sumner, Yuhong Tang, Richard A. DixonPlant Cell Apr 2011, 23 (4) 1536-1555; DOI: https://doi.org/10.1105/tpc.110.080804
This work identifies MATE2, which transports glycosylated flavonoids into the vacuole, showing higher transport efficiency with anthocyanins than other flavonoid glycosides, and an increase in transport efficiency for malonylated flavonoid glucosides. Null mutants of MATE2 show decreases of anthocyanins and increases in other flavonoids, such as seed proanthocyanidin.
Hedley, Pete E.
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Herter, Thomas
- Open AccessThe Interconversion of UDP-Arabinopyranose and UDP-Arabinofuranose Is Indispensable for Plant Development in ArabidopsisCarsten Rautengarten, Berit Ebert, Thomas Herter, Christopher J. Petzold, Tadashi Ishii, Aindrila Mukhopadhyay, Björn Usadel, Henrik Vibe SchellerPlant Cell Apr 2011, 23 (4) 1373-1390; DOI: https://doi.org/10.1105/tpc.111.083931
Incorporation of arabinose into plant cell wall polysaccharides requires conversion into the furanose form. This conversion is mediated exclusively by UDP-arabinose mutases (RGPs) located in the cytoplasm.
Hofmann, Nancy R.
- You have accessRestricted AccessA Biophysical Model for Predicting Regulatory InteractionsNancy R. HofmannPlant Cell Apr 2011, 23 (4) 1187; DOI: https://doi.org/10.1105/tpc.111.230410
Holloman, William K.
- You have accessRestricted AccessThe DNA Damage Response Signaling Cascade Regulates Proliferation of the Phytopathogenic Fungus Ustilago maydis in PlantaCarmen de Sena-Tomás, Alfonso Fernández-Álvarez, William K. Holloman, José Pérez-MartínPlant Cell Apr 2011, 23 (4) 1654-1665; DOI: https://doi.org/10.1105/tpc.110.082552
This work shows that in the phytopathogenic fungus Ustilago maydis, the genetic pathway involved in the transmission of signals required for the response to DNA damage is also used to control the specific dikaryotic cell cycle that predominates proliferation in planta.
Hostettler, Carmen
- Open Accessβ-Amylase–Like Proteins Function as Transcription Factors in Arabidopsis, Controlling Shoot Growth and DevelopmentHeike Reinhold, Sebastian Soyk, Klára Šimková, Carmen Hostettler, John Marafino, Samantha Mainiero, Cara K. Vaughan, Jonathan D. Monroe, Samuel C. ZeemanPlant Cell Apr 2011, 23 (4) 1391-1403; DOI: https://doi.org/10.1105/tpc.110.081950
Two proteins similar to β-amylases (enzymes usually associated with starch breakdown) possess a BZR1-type DNA binding domain and are nuclear localized. They bind a G box-containing motif and regulate the expression of genes, many of which also respond to brassinosteroids, to influence shoot growth. Similar proteins occur in other plants, implying functional conservation.
Hsieh, Scott I.
- Open AccessSystems Biology Approach in Chlamydomonas Reveals Connections between Copper Nutrition and Multiple Metabolic StepsMadeli Castruita, David Casero, Steven J. Karpowicz, Janette Kropat, Astrid Vieler, Scott I. Hsieh, Weihong Yan, Shawn Cokus, Joseph A. Loo, Christoph Benning, Matteo Pellegrini, Sabeeha S. MerchantPlant Cell Apr 2011, 23 (4) 1273-1292; DOI: https://doi.org/10.1105/tpc.111.084400
RNA-seq assessment of the transcriptome of autotrophic and heterotrophic Chlamydomonas as a function of copper nutrition reveals changes in redox metabolism regulated by CRR1, an SBP domain transcription factor. The changes in RNA abundance impact the abundance of specific plastid-localized proteins and the level of saturation of plastid galactolipids.
Huhman, David
- Open AccessMATE2 Mediates Vacuolar Sequestration of Flavonoid Glycosides and Glycoside Malonates in Medicago truncatulaJian Zhao, David Huhman, Gail Shadle, Xian-Zhi He, Lloyd W. Sumner, Yuhong Tang, Richard A. DixonPlant Cell Apr 2011, 23 (4) 1536-1555; DOI: https://doi.org/10.1105/tpc.110.080804
This work identifies MATE2, which transports glycosylated flavonoids into the vacuole, showing higher transport efficiency with anthocyanins than other flavonoid glycosides, and an increase in transport efficiency for malonylated flavonoid glucosides. Null mutants of MATE2 show decreases of anthocyanins and increases in other flavonoids, such as seed proanthocyanidin.
Hwang, Inhwan
- You have accessRestricted AccessBoth the Hydrophobicity and a Positively Charged Region Flanking the C-Terminal Region of the Transmembrane Domain of Signal-Anchored Proteins Play Critical Roles in Determining Their Targeting Specificity to the Endoplasmic Reticulum or Endosymbiotic Organelles in Arabidopsis CellsJunho Lee, Hyunkyung Lee, Jinho Kim, Sumin Lee, Dae Heon Kim, Sanguk Kim, Inhwan HwangPlant Cell Apr 2011, 23 (4) 1588-1607; DOI: https://doi.org/10.1105/tpc.110.082230
This study uses in vivo targeting, subcellular fractionation, and bioinformatics approaches to investigate the signal sequences that determine whether signal-anchored proteins are targeted to the endoplasmic reticulum or to endosymbiotic organelles.
I
Iantcheva, Anelia
- You have accessRestricted AccessThe Arabidopsis thaliana Checkpoint Kinase WEE1 Protects against Premature Vascular Differentiation during Replication StressToon Cools, Anelia Iantcheva, Annika K. Weimer, Shannah Boens, Naoki Takahashi, Sara Maes, Hilde Van den Daele, Gert Van Isterdael, Arp Schnittger, Lieven De VeylderPlant Cell Apr 2011, 23 (4) 1435-1448; DOI: https://doi.org/10.1105/tpc.110.082768
Because of their sessile lifestyle, plants need to react promptly to factors that affect meristem integrity. This work shows that the WEE1 checkpoint kinase maintains the root meristem activity under replication stress by controlling S-phase progression, thereby preventing premature onset of vascular cell differentiation.
Ishii, Tadashi
- Open AccessThe Interconversion of UDP-Arabinopyranose and UDP-Arabinofuranose Is Indispensable for Plant Development in ArabidopsisCarsten Rautengarten, Berit Ebert, Thomas Herter, Christopher J. Petzold, Tadashi Ishii, Aindrila Mukhopadhyay, Björn Usadel, Henrik Vibe SchellerPlant Cell Apr 2011, 23 (4) 1373-1390; DOI: https://doi.org/10.1105/tpc.111.083931
Incorporation of arabinose into plant cell wall polysaccharides requires conversion into the furanose form. This conversion is mediated exclusively by UDP-arabinose mutases (RGPs) located in the cytoplasm.
Itoh, Takeshi
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
J
Jeffree, Christopher E.
- You have accessRestricted AccessA DELLA in Disguise: SPATULA Restrains the Growth of the Developing Arabidopsis SeedlingEve-Marie Josse, Yinbo Gan, Jordi Bou-Torrent, Kelly L. Stewart, Alison D. Gilday, Christopher E. Jeffree, Fabián E. Vaistij, Jaime F. Martínez-García, Ferenc Nagy, Ian A. Graham, Karen J. HallidayPlant Cell Apr 2011, 23 (4) 1337-1351; DOI: https://doi.org/10.1105/tpc.110.082594
This study examines the role of the PHYTOCHROME INTERACTING FACTOR3 homolog SPATULA (SPT) in the control of the developing seedling and shows that SPT is a potent regulator of cotyledon size, acting in parallel to DELLAs. As DELLAs negatively regulate SPT abundance, the light regulation of DELLAs drives the DELLA-SPT counterbalance, enforcing growth restraint across a range of ambient light conditions that are prevalent in nature.
Johnson, Matthew P.
- You have accessRestricted AccessPhotoprotective Energy Dissipation Involves the Reorganization of Photosystem II Light-Harvesting Complexes in the Grana Membranes of Spinach ChloroplastsMatthew P. Johnson, Tomasz K. Goral, Christopher D.P. Duffy, Anthony P.R. Brain, Conrad W. Mullineaux, Alexander V. RubanPlant Cell Apr 2011, 23 (4) 1468-1479; DOI: https://doi.org/10.1105/tpc.110.081646
The rapidly reversible macrostructural changes in higher-plant chloroplast thylakoid membrane organization accompanying photoprotective energy dissipation (qE) are studied using freeze-fracture electron and laser confocal microscopy. qE is shown to involve the aggregation of light-harvesting complexes and their segregation from photosystem II.
Josse, Eve-Marie
- You have accessRestricted AccessA DELLA in Disguise: SPATULA Restrains the Growth of the Developing Arabidopsis SeedlingEve-Marie Josse, Yinbo Gan, Jordi Bou-Torrent, Kelly L. Stewart, Alison D. Gilday, Christopher E. Jeffree, Fabián E. Vaistij, Jaime F. Martínez-García, Ferenc Nagy, Ian A. Graham, Karen J. HallidayPlant Cell Apr 2011, 23 (4) 1337-1351; DOI: https://doi.org/10.1105/tpc.110.082594
This study examines the role of the PHYTOCHROME INTERACTING FACTOR3 homolog SPATULA (SPT) in the control of the developing seedling and shows that SPT is a potent regulator of cotyledon size, acting in parallel to DELLAs. As DELLAs negatively regulate SPT abundance, the light regulation of DELLAs drives the DELLA-SPT counterbalance, enforcing growth restraint across a range of ambient light conditions that are prevalent in nature.
Jovel, Juan
- Open AccessThe 21-Nucleotide, but Not 22-Nucleotide, Viral Secondary Small Interfering RNAs Direct Potent Antiviral Defense by Two Cooperative Argonautes in Arabidopsis thalianaXian-Bing Wang, Juan Jovel, Petchthai Udomporn, Ying Wang, Qingfa Wu, Wan-Xiang Li, Virginie Gasciolli, Herve Vaucheret, Shou-Wei DingPlant Cell Apr 2011, 23 (4) 1625-1638; DOI: https://doi.org/10.1105/tpc.110.082305
This work identifies cooperative action of ARGONAUTE1 and ARGONAUTE2 in virus resistance conferred by 21-nucleotide virus-derived small interfering RNAs (siRNAs). It also reveals that 22-nucleotide viral siRNAs do not guide efficient antiviral defense, demonstrating a qualitative difference between 21- and 22-nucleotide classes of siRNAs in RNA silencing.
K
Karpowicz, Steven J.
- Open AccessSystems Biology Approach in Chlamydomonas Reveals Connections between Copper Nutrition and Multiple Metabolic StepsMadeli Castruita, David Casero, Steven J. Karpowicz, Janette Kropat, Astrid Vieler, Scott I. Hsieh, Weihong Yan, Shawn Cokus, Joseph A. Loo, Christoph Benning, Matteo Pellegrini, Sabeeha S. MerchantPlant Cell Apr 2011, 23 (4) 1273-1292; DOI: https://doi.org/10.1105/tpc.111.084400
RNA-seq assessment of the transcriptome of autotrophic and heterotrophic Chlamydomonas as a function of copper nutrition reveals changes in redox metabolism regulated by CRR1, an SBP domain transcription factor. The changes in RNA abundance impact the abundance of specific plastid-localized proteins and the level of saturation of plastid galactolipids.
Kataya, Amr R.
- You have accessRestricted AccessIdentification of Novel Plant Peroxisomal Targeting Signals by a Combination of Machine Learning Methods and in Vivo Subcellular Targeting AnalysesThomas Lingner, Amr R. Kataya, Gerardo E. Antonicelli, Aline Benichou, Kjersti Nilssen, Xiong-Yan Chen, Tanja Siemsen, Burkhard Morgenstern, Peter Meinicke, Sigrun ReumannPlant Cell Apr 2011, 23 (4) 1556-1572; DOI: https://doi.org/10.1105/tpc.111.084095
Two different prediction methods for Arabidopsis proteins carrying peroxisome targeting signals type 1 (PTS1) are described. Validation of many novel targeting signals and Arabidopsis PTS1 proteins by in vivo localization experiments demonstrates a high prediction accuracy of the new methods.
Kiefer, Christiane
- Open AccessAa TFL1 Confers an Age-Dependent Response to Vernalization in Perennial Arabis alpinaRenhou Wang, Maria C. Albani, Coral Vincent, Sara Bergonzi, Ming Luan, Yan Bai, Christiane Kiefer, Rosa Castillo, George CouplandPlant Cell Apr 2011, 23 (4) 1307-1321; DOI: https://doi.org/10.1105/tpc.111.083451
Many plants must reach a certain age before they will flower in response to environmental cues. Perennial Arabis alpina plants are shown not to respond to vernalization until they are 5 weeks old. This effect is found to require the Aa TFL1 gene, which blocks induction of Aa LFY when young plants are exposed to cold.
Kim, Dae Heon
- You have accessRestricted AccessBoth the Hydrophobicity and a Positively Charged Region Flanking the C-Terminal Region of the Transmembrane Domain of Signal-Anchored Proteins Play Critical Roles in Determining Their Targeting Specificity to the Endoplasmic Reticulum or Endosymbiotic Organelles in Arabidopsis CellsJunho Lee, Hyunkyung Lee, Jinho Kim, Sumin Lee, Dae Heon Kim, Sanguk Kim, Inhwan HwangPlant Cell Apr 2011, 23 (4) 1588-1607; DOI: https://doi.org/10.1105/tpc.110.082230
This study uses in vivo targeting, subcellular fractionation, and bioinformatics approaches to investigate the signal sequences that determine whether signal-anchored proteins are targeted to the endoplasmic reticulum or to endosymbiotic organelles.
Kim, Jinho
- You have accessRestricted AccessBoth the Hydrophobicity and a Positively Charged Region Flanking the C-Terminal Region of the Transmembrane Domain of Signal-Anchored Proteins Play Critical Roles in Determining Their Targeting Specificity to the Endoplasmic Reticulum or Endosymbiotic Organelles in Arabidopsis CellsJunho Lee, Hyunkyung Lee, Jinho Kim, Sumin Lee, Dae Heon Kim, Sanguk Kim, Inhwan HwangPlant Cell Apr 2011, 23 (4) 1588-1607; DOI: https://doi.org/10.1105/tpc.110.082230
This study uses in vivo targeting, subcellular fractionation, and bioinformatics approaches to investigate the signal sequences that determine whether signal-anchored proteins are targeted to the endoplasmic reticulum or to endosymbiotic organelles.
Kim, Sanguk
- You have accessRestricted AccessBoth the Hydrophobicity and a Positively Charged Region Flanking the C-Terminal Region of the Transmembrane Domain of Signal-Anchored Proteins Play Critical Roles in Determining Their Targeting Specificity to the Endoplasmic Reticulum or Endosymbiotic Organelles in Arabidopsis CellsJunho Lee, Hyunkyung Lee, Jinho Kim, Sumin Lee, Dae Heon Kim, Sanguk Kim, Inhwan HwangPlant Cell Apr 2011, 23 (4) 1588-1607; DOI: https://doi.org/10.1105/tpc.110.082230
This study uses in vivo targeting, subcellular fractionation, and bioinformatics approaches to investigate the signal sequences that determine whether signal-anchored proteins are targeted to the endoplasmic reticulum or to endosymbiotic organelles.
Kim, Woohyun
- You have accessRestricted AccessABI3 and PIL5 Collaboratively Activate the Expression of SOMNUS by Directly Binding to Its Promoter in Imbibed Arabidopsis SeedsJeongmoo Park, Nayoung Lee, Woohyun Kim, Soohwan Lim, Giltsu ChoiPlant Cell Apr 2011, 23 (4) 1404-1415; DOI: https://doi.org/10.1105/tpc.110.080721
This study examines the regulation of SOMNUS (SOM), which is a key negative regulator of seed germination. ABI3 was found to regulate SOM expression together with PIL5, a previously identified regulator of SOM. PIL5 and ABI3, which interact to form a complex, regulate SOM expression independently in maturing seeds, but collaboratively in imbibed seeds.
Kramer, David M.
- You have accessRestricted AccessGUN4-Porphyrin Complexes Bind the ChlH/GUN5 Subunit of Mg-Chelatase and Promote Chlorophyll Biosynthesis in ArabidopsisNeil D. Adhikari, John E. Froehlich, Deserah D. Strand, Stephanie M. Buck, David M. Kramer, Robert M. LarkinPlant Cell Apr 2011, 23 (4) 1449-1467; DOI: https://doi.org/10.1105/tpc.110.082503
We show that GUN4-porphyrin complexes help to channel protoporphyrin IX into chlorophyll biosynthesis by binding to the ChlH subunit of Mg-chelatase with a higher affinity than unliganded GUN4 on Arabidopsis chloroplast membranes. GUN4 and ChlH used distinct mechanisms to associate with chloroplast membranes, and mutant alleles of GUN4 and Mg-chelatase subunit genes cause sensitivity to intense light.
Kropat, Janette
- Open AccessSystems Biology Approach in Chlamydomonas Reveals Connections between Copper Nutrition and Multiple Metabolic StepsMadeli Castruita, David Casero, Steven J. Karpowicz, Janette Kropat, Astrid Vieler, Scott I. Hsieh, Weihong Yan, Shawn Cokus, Joseph A. Loo, Christoph Benning, Matteo Pellegrini, Sabeeha S. MerchantPlant Cell Apr 2011, 23 (4) 1273-1292; DOI: https://doi.org/10.1105/tpc.111.084400
RNA-seq assessment of the transcriptome of autotrophic and heterotrophic Chlamydomonas as a function of copper nutrition reveals changes in redox metabolism regulated by CRR1, an SBP domain transcription factor. The changes in RNA abundance impact the abundance of specific plastid-localized proteins and the level of saturation of plastid galactolipids.
Kubaláková, Marie
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
L
Larkin, Robert M.
- You have accessRestricted AccessGUN4-Porphyrin Complexes Bind the ChlH/GUN5 Subunit of Mg-Chelatase and Promote Chlorophyll Biosynthesis in ArabidopsisNeil D. Adhikari, John E. Froehlich, Deserah D. Strand, Stephanie M. Buck, David M. Kramer, Robert M. LarkinPlant Cell Apr 2011, 23 (4) 1449-1467; DOI: https://doi.org/10.1105/tpc.110.082503
We show that GUN4-porphyrin complexes help to channel protoporphyrin IX into chlorophyll biosynthesis by binding to the ChlH subunit of Mg-chelatase with a higher affinity than unliganded GUN4 on Arabidopsis chloroplast membranes. GUN4 and ChlH used distinct mechanisms to associate with chloroplast membranes, and mutant alleles of GUN4 and Mg-chelatase subunit genes cause sensitivity to intense light.
Le Bail, Aude
- You have accessRestricted AccessETOILE Regulates Developmental Patterning in the Filamentous Brown Alga Ectocarpus siliculosusAude Le Bail, Bernard Billoud, Sophie Le Panse, Sabine Chenivesse, Bénédicte CharrierPlant Cell Apr 2011, 23 (4) 1666-1678; DOI: https://doi.org/10.1105/tpc.110.081919
By means of a combination of experimental and modeling approaches applied to the hyperbranching mutant étoile, cell–cell communication, likely mediated by novel transmembrane proteins that share similarities with metazoan Notch receptors, was shown to account for the establishment of filament patterning and cell differentiation in the filamentous brown alga Ectocarpus siliculosus.
Lee, Hyunkyung
- You have accessRestricted AccessBoth the Hydrophobicity and a Positively Charged Region Flanking the C-Terminal Region of the Transmembrane Domain of Signal-Anchored Proteins Play Critical Roles in Determining Their Targeting Specificity to the Endoplasmic Reticulum or Endosymbiotic Organelles in Arabidopsis CellsJunho Lee, Hyunkyung Lee, Jinho Kim, Sumin Lee, Dae Heon Kim, Sanguk Kim, Inhwan HwangPlant Cell Apr 2011, 23 (4) 1588-1607; DOI: https://doi.org/10.1105/tpc.110.082230
This study uses in vivo targeting, subcellular fractionation, and bioinformatics approaches to investigate the signal sequences that determine whether signal-anchored proteins are targeted to the endoplasmic reticulum or to endosymbiotic organelles.
Lee, Junho
- You have accessRestricted AccessBoth the Hydrophobicity and a Positively Charged Region Flanking the C-Terminal Region of the Transmembrane Domain of Signal-Anchored Proteins Play Critical Roles in Determining Their Targeting Specificity to the Endoplasmic Reticulum or Endosymbiotic Organelles in Arabidopsis CellsJunho Lee, Hyunkyung Lee, Jinho Kim, Sumin Lee, Dae Heon Kim, Sanguk Kim, Inhwan HwangPlant Cell Apr 2011, 23 (4) 1588-1607; DOI: https://doi.org/10.1105/tpc.110.082230
This study uses in vivo targeting, subcellular fractionation, and bioinformatics approaches to investigate the signal sequences that determine whether signal-anchored proteins are targeted to the endoplasmic reticulum or to endosymbiotic organelles.
Lee, Nayoung
- You have accessRestricted AccessABI3 and PIL5 Collaboratively Activate the Expression of SOMNUS by Directly Binding to Its Promoter in Imbibed Arabidopsis SeedsJeongmoo Park, Nayoung Lee, Woohyun Kim, Soohwan Lim, Giltsu ChoiPlant Cell Apr 2011, 23 (4) 1404-1415; DOI: https://doi.org/10.1105/tpc.110.080721
This study examines the regulation of SOMNUS (SOM), which is a key negative regulator of seed germination. ABI3 was found to regulate SOM expression together with PIL5, a previously identified regulator of SOM. PIL5 and ABI3, which interact to form a complex, regulate SOM expression independently in maturing seeds, but collaboratively in imbibed seeds.
Lee, Sumin
- You have accessRestricted AccessBoth the Hydrophobicity and a Positively Charged Region Flanking the C-Terminal Region of the Transmembrane Domain of Signal-Anchored Proteins Play Critical Roles in Determining Their Targeting Specificity to the Endoplasmic Reticulum or Endosymbiotic Organelles in Arabidopsis CellsJunho Lee, Hyunkyung Lee, Jinho Kim, Sumin Lee, Dae Heon Kim, Sanguk Kim, Inhwan HwangPlant Cell Apr 2011, 23 (4) 1588-1607; DOI: https://doi.org/10.1105/tpc.110.082230
This study uses in vivo targeting, subcellular fractionation, and bioinformatics approaches to investigate the signal sequences that determine whether signal-anchored proteins are targeted to the endoplasmic reticulum or to endosymbiotic organelles.
Leivar, Pablo
- You have accessRestricted AccessMultilevel Control of Arabidopsis 3-Hydroxy-3-Methylglutaryl Coenzyme A Reductase by Protein Phosphatase 2APablo Leivar, Meritxell Antolín-Llovera, Sergi Ferrero, Marta Closa, Montserrat Arró, Albert Ferrer, Albert Boronat, Narciso CamposPlant Cell Apr 2011, 23 (4) 1494-1511; DOI: https://doi.org/10.1105/tpc.110.074278
HMG-CoA reductase has a key role in the regulation of the mevalonate pathway for isoprenoid biosynthesis and is modulated by many diverse endogenous and environmental stimuli. In this work, protein phosphatase 2A emerges as a positive and negative multilevel regulator of plant HMG-CoA reductase during normal development and in response to a variety of stress conditions.
Le Panse, Sophie
- You have accessRestricted AccessETOILE Regulates Developmental Patterning in the Filamentous Brown Alga Ectocarpus siliculosusAude Le Bail, Bernard Billoud, Sophie Le Panse, Sabine Chenivesse, Bénédicte CharrierPlant Cell Apr 2011, 23 (4) 1666-1678; DOI: https://doi.org/10.1105/tpc.110.081919
By means of a combination of experimental and modeling approaches applied to the hyperbranching mutant étoile, cell–cell communication, likely mediated by novel transmembrane proteins that share similarities with metazoan Notch receptors, was shown to account for the establishment of filament patterning and cell differentiation in the filamentous brown alga Ectocarpus siliculosus.
Less, Hadar
- You have accessRestricted AccessCoordinated Gene Networks Regulating Arabidopsis Plant Metabolism in Response to Various Stresses and Nutritional CuesHadar Less, Ruthie Angelovici, Vered Tzin, Gad GaliliPlant Cell Apr 2011, 23 (4) 1264-1271; DOI: https://doi.org/10.1105/tpc.110.082867
This work introduces a bioinformatics approach that identifies positive and negative coordination of gene expression between sets of genes, or entire gene networks, in response to environmental or developmental cues. The approach is illustrated by a case study that identifies distinct expression behavior of the energy-associated gene network in response to different biotic and abiotic stresses.
Li, Wan-Xiang
- Open AccessThe 21-Nucleotide, but Not 22-Nucleotide, Viral Secondary Small Interfering RNAs Direct Potent Antiviral Defense by Two Cooperative Argonautes in Arabidopsis thalianaXian-Bing Wang, Juan Jovel, Petchthai Udomporn, Ying Wang, Qingfa Wu, Wan-Xiang Li, Virginie Gasciolli, Herve Vaucheret, Shou-Wei DingPlant Cell Apr 2011, 23 (4) 1625-1638; DOI: https://doi.org/10.1105/tpc.110.082305
This work identifies cooperative action of ARGONAUTE1 and ARGONAUTE2 in virus resistance conferred by 21-nucleotide virus-derived small interfering RNAs (siRNAs). It also reveals that 22-nucleotide viral siRNAs do not guide efficient antiviral defense, demonstrating a qualitative difference between 21- and 22-nucleotide classes of siRNAs in RNA silencing.
Li, Xianghua
- Open AccessRice APOPTOSIS INHIBITOR5 Coupled with Two DEAD-Box Adenosine 5′-Triphosphate-Dependent RNA Helicases Regulates Tapetum DegenerationXingwang Li, Xinqiang Gao, Yi Wei, Li Deng, Yidan Ouyang, Guoxing Chen, Xianghua Li, Qifa Zhang, Changyin WuPlant Cell Apr 2011, 23 (4) 1416-1434; DOI: https://doi.org/10.1105/tpc.110.082636
This study examines the role of API5, a homolog of animal antiapoptosis proteins, in the degeneration of the tapetum during the formation of male gametophytes in rice. It describes a previously unknown pathway for regulating programmed cell death, one that may be conserved among eukaryotic organisms.
Li, Xingwang
- Open AccessRice APOPTOSIS INHIBITOR5 Coupled with Two DEAD-Box Adenosine 5′-Triphosphate-Dependent RNA Helicases Regulates Tapetum DegenerationXingwang Li, Xinqiang Gao, Yi Wei, Li Deng, Yidan Ouyang, Guoxing Chen, Xianghua Li, Qifa Zhang, Changyin WuPlant Cell Apr 2011, 23 (4) 1416-1434; DOI: https://doi.org/10.1105/tpc.110.082636
This study examines the role of API5, a homolog of animal antiapoptosis proteins, in the degeneration of the tapetum during the formation of male gametophytes in rice. It describes a previously unknown pathway for regulating programmed cell death, one that may be conserved among eukaryotic organisms.
Liang, Yuan
- Open Accessd-myo-Inositol-3-Phosphate Affects Phosphatidylinositol-Mediated Endomembrane Function in Arabidopsis and Is Essential for Auxin-Regulated EmbryogenesisYu Luo, Genji Qin, Jun Zhang, Yuan Liang, Yingqi Song, Meiping Zhao, Tomohiko Tsuge, Takashi Aoyama, Jingjing Liu, Hongya Gu, Li-Jia QuPlant Cell Apr 2011, 23 (4) 1352-1372; DOI: https://doi.org/10.1105/tpc.111.083337
This work reveals the significant roles of myo-inositol in Arabidopsis embryogenesis. Experiments show that depletion of myo-inositol by knocking out multiple MIPS genes, which encode d-myo-inositol-3-phosphate synthase, could affect the membrane trafficking via the phosphatidylinositol metabolism by leading to altered auxin distribution in developing embryos.
Lim, Soohwan
- You have accessRestricted AccessABI3 and PIL5 Collaboratively Activate the Expression of SOMNUS by Directly Binding to Its Promoter in Imbibed Arabidopsis SeedsJeongmoo Park, Nayoung Lee, Woohyun Kim, Soohwan Lim, Giltsu ChoiPlant Cell Apr 2011, 23 (4) 1404-1415; DOI: https://doi.org/10.1105/tpc.110.080721
This study examines the regulation of SOMNUS (SOM), which is a key negative regulator of seed germination. ABI3 was found to regulate SOM expression together with PIL5, a previously identified regulator of SOM. PIL5 and ABI3, which interact to form a complex, regulate SOM expression independently in maturing seeds, but collaboratively in imbibed seeds.
Lingner, Thomas
- You have accessRestricted AccessIdentification of Novel Plant Peroxisomal Targeting Signals by a Combination of Machine Learning Methods and in Vivo Subcellular Targeting AnalysesThomas Lingner, Amr R. Kataya, Gerardo E. Antonicelli, Aline Benichou, Kjersti Nilssen, Xiong-Yan Chen, Tanja Siemsen, Burkhard Morgenstern, Peter Meinicke, Sigrun ReumannPlant Cell Apr 2011, 23 (4) 1556-1572; DOI: https://doi.org/10.1105/tpc.111.084095
Two different prediction methods for Arabidopsis proteins carrying peroxisome targeting signals type 1 (PTS1) are described. Validation of many novel targeting signals and Arabidopsis PTS1 proteins by in vivo localization experiments demonstrates a high prediction accuracy of the new methods.
Liu, Chang-Jun
- Open AccessNegative Regulation of Anthocyanin Biosynthesis in Arabidopsis by a miR156-Targeted SPL Transcription FactorJin-Ying Gou, Felipe F. Felippes, Chang-Jun Liu, Detlef Weigel, Jia-Wei WangPlant Cell Apr 2011, 23 (4) 1512-1522; DOI: https://doi.org/10.1105/tpc.111.084525
This work reveals that anthocyanin biosynthesis is coupled to floral transition by miR156-targeted SQUAMOSA PROMOTER BINDING PROTEIN-LIKE (SPL) genes. SPL negatively regulates anthocyanin accumulation by directly preventing expression of anthocyanin biosynthetic genes through destabilization of a MYB-bHLH-WD40 transcriptional activation complex.
Liu, Hui
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Liu, Jingjing
- Open Accessd-myo-Inositol-3-Phosphate Affects Phosphatidylinositol-Mediated Endomembrane Function in Arabidopsis and Is Essential for Auxin-Regulated EmbryogenesisYu Luo, Genji Qin, Jun Zhang, Yuan Liang, Yingqi Song, Meiping Zhao, Tomohiko Tsuge, Takashi Aoyama, Jingjing Liu, Hongya Gu, Li-Jia QuPlant Cell Apr 2011, 23 (4) 1352-1372; DOI: https://doi.org/10.1105/tpc.111.083337
This work reveals the significant roles of myo-inositol in Arabidopsis embryogenesis. Experiments show that depletion of myo-inositol by knocking out multiple MIPS genes, which encode d-myo-inositol-3-phosphate synthase, could affect the membrane trafficking via the phosphatidylinositol metabolism by leading to altered auxin distribution in developing embryos.
Liu, Yidong
- You have accessRestricted AccessPhosphorylation of a WRKY Transcription Factor by Two Pathogen-Responsive MAPKs Drives Phytoalexin Biosynthesis in ArabidopsisGuohong Mao, Xiangzong Meng, Yidong Liu, Zuyu Zheng, Zhixiang Chen, Shuqun ZhangPlant Cell Apr 2011, 23 (4) 1639-1653; DOI: https://doi.org/10.1105/tpc.111.084996
WRKY33 functions downstream of pathogen-responsive MPK3 and MPK6 in reprogramming the expression of camalexin biosynthetic genes; this drives the metabolic flow to camalexin production in Arabidopsis challenged by pathogens. Biochemical and genetic analyses demonstrate that the phosphorylation of WRKY33 by MPK3/MPK6 plays an important role in the process.
Loo, Joseph A.
- Open AccessSystems Biology Approach in Chlamydomonas Reveals Connections between Copper Nutrition and Multiple Metabolic StepsMadeli Castruita, David Casero, Steven J. Karpowicz, Janette Kropat, Astrid Vieler, Scott I. Hsieh, Weihong Yan, Shawn Cokus, Joseph A. Loo, Christoph Benning, Matteo Pellegrini, Sabeeha S. MerchantPlant Cell Apr 2011, 23 (4) 1273-1292; DOI: https://doi.org/10.1105/tpc.111.084400
RNA-seq assessment of the transcriptome of autotrophic and heterotrophic Chlamydomonas as a function of copper nutrition reveals changes in redox metabolism regulated by CRR1, an SBP domain transcription factor. The changes in RNA abundance impact the abundance of specific plastid-localized proteins and the level of saturation of plastid galactolipids.
Luan, Ming
- Open AccessAa TFL1 Confers an Age-Dependent Response to Vernalization in Perennial Arabis alpinaRenhou Wang, Maria C. Albani, Coral Vincent, Sara Bergonzi, Ming Luan, Yan Bai, Christiane Kiefer, Rosa Castillo, George CouplandPlant Cell Apr 2011, 23 (4) 1307-1321; DOI: https://doi.org/10.1105/tpc.111.083451
Many plants must reach a certain age before they will flower in response to environmental cues. Perennial Arabis alpina plants are shown not to respond to vernalization until they are 5 weeks old. This effect is found to require the Aa TFL1 gene, which blocks induction of Aa LFY when young plants are exposed to cold.
Luo, Yu
- Open Accessd-myo-Inositol-3-Phosphate Affects Phosphatidylinositol-Mediated Endomembrane Function in Arabidopsis and Is Essential for Auxin-Regulated EmbryogenesisYu Luo, Genji Qin, Jun Zhang, Yuan Liang, Yingqi Song, Meiping Zhao, Tomohiko Tsuge, Takashi Aoyama, Jingjing Liu, Hongya Gu, Li-Jia QuPlant Cell Apr 2011, 23 (4) 1352-1372; DOI: https://doi.org/10.1105/tpc.111.083337
This work reveals the significant roles of myo-inositol in Arabidopsis embryogenesis. Experiments show that depletion of myo-inositol by knocking out multiple MIPS genes, which encode d-myo-inositol-3-phosphate synthase, could affect the membrane trafficking via the phosphatidylinositol metabolism by leading to altered auxin distribution in developing embryos.
M
Maes, Sara
- You have accessRestricted AccessThe Arabidopsis thaliana Checkpoint Kinase WEE1 Protects against Premature Vascular Differentiation during Replication StressToon Cools, Anelia Iantcheva, Annika K. Weimer, Shannah Boens, Naoki Takahashi, Sara Maes, Hilde Van den Daele, Gert Van Isterdael, Arp Schnittger, Lieven De VeylderPlant Cell Apr 2011, 23 (4) 1435-1448; DOI: https://doi.org/10.1105/tpc.110.082768
Because of their sessile lifestyle, plants need to react promptly to factors that affect meristem integrity. This work shows that the WEE1 checkpoint kinase maintains the root meristem activity under replication stress by controlling S-phase progression, thereby preventing premature onset of vascular cell differentiation.
Mainiero, Samantha
- Open Accessβ-Amylase–Like Proteins Function as Transcription Factors in Arabidopsis, Controlling Shoot Growth and DevelopmentHeike Reinhold, Sebastian Soyk, Klára Šimková, Carmen Hostettler, John Marafino, Samantha Mainiero, Cara K. Vaughan, Jonathan D. Monroe, Samuel C. ZeemanPlant Cell Apr 2011, 23 (4) 1391-1403; DOI: https://doi.org/10.1105/tpc.110.081950
Two proteins similar to β-amylases (enzymes usually associated with starch breakdown) possess a BZR1-type DNA binding domain and are nuclear localized. They bind a G box-containing motif and regulate the expression of genes, many of which also respond to brassinosteroids, to influence shoot growth. Similar proteins occur in other plants, implying functional conservation.
Malinsky, Jan
- You have accessRestricted AccessIn Plant and Animal Cells, Detergent-Resistant Membranes Do Not Define Functional Membrane RaftsWidmar Tanner, Jan Malinsky, Miroslava OpekarováPlant Cell Apr 2011, 23 (4) 1191-1193; DOI: https://doi.org/10.1105/tpc.111.086249
Mano, Shoji
- You have accessRestricted AccessArabidopsis ABERRANT PEROXISOME MORPHOLOGY9 Is a Peroxin That Recruits the PEX1-PEX6 Complex to PeroxisomesShino Goto, Shoji Mano, Chihiro Nakamori, Mikio NishimuraPlant Cell Apr 2011, 23 (4) 1573-1587; DOI: https://doi.org/10.1105/tpc.110.080770
This study identifies APEM9 as an essential factor for peroxisomal protein transport in plants. APEM9 proteins have unique amino acid sequences, which are distinct from that of Pex26 functional homologs in mammals.
Mao, Guohong
- You have accessRestricted AccessPhosphorylation of a WRKY Transcription Factor by Two Pathogen-Responsive MAPKs Drives Phytoalexin Biosynthesis in ArabidopsisGuohong Mao, Xiangzong Meng, Yidong Liu, Zuyu Zheng, Zhixiang Chen, Shuqun ZhangPlant Cell Apr 2011, 23 (4) 1639-1653; DOI: https://doi.org/10.1105/tpc.111.084996
WRKY33 functions downstream of pathogen-responsive MPK3 and MPK6 in reprogramming the expression of camalexin biosynthetic genes; this drives the metabolic flow to camalexin production in Arabidopsis challenged by pathogens. Biochemical and genetic analyses demonstrate that the phosphorylation of WRKY33 by MPK3/MPK6 plays an important role in the process.
Marafino, John
- Open Accessβ-Amylase–Like Proteins Function as Transcription Factors in Arabidopsis, Controlling Shoot Growth and DevelopmentHeike Reinhold, Sebastian Soyk, Klára Šimková, Carmen Hostettler, John Marafino, Samantha Mainiero, Cara K. Vaughan, Jonathan D. Monroe, Samuel C. ZeemanPlant Cell Apr 2011, 23 (4) 1391-1403; DOI: https://doi.org/10.1105/tpc.110.081950
Two proteins similar to β-amylases (enzymes usually associated with starch breakdown) possess a BZR1-type DNA binding domain and are nuclear localized. They bind a G box-containing motif and regulate the expression of genes, many of which also respond to brassinosteroids, to influence shoot growth. Similar proteins occur in other plants, implying functional conservation.
Martínez-García, Jaime F.
- You have accessRestricted AccessA DELLA in Disguise: SPATULA Restrains the Growth of the Developing Arabidopsis SeedlingEve-Marie Josse, Yinbo Gan, Jordi Bou-Torrent, Kelly L. Stewart, Alison D. Gilday, Christopher E. Jeffree, Fabián E. Vaistij, Jaime F. Martínez-García, Ferenc Nagy, Ian A. Graham, Karen J. HallidayPlant Cell Apr 2011, 23 (4) 1337-1351; DOI: https://doi.org/10.1105/tpc.110.082594
This study examines the role of the PHYTOCHROME INTERACTING FACTOR3 homolog SPATULA (SPT) in the control of the developing seedling and shows that SPT is a potent regulator of cotyledon size, acting in parallel to DELLAs. As DELLAs negatively regulate SPT abundance, the light regulation of DELLAs drives the DELLA-SPT counterbalance, enforcing growth restraint across a range of ambient light conditions that are prevalent in nature.
Martis, Mihaela
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Matsumoto, Takashi
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Matsushima, Ryo
- You have accessRestricted AccessA Conserved, Mg2+-Dependent Exonuclease Degrades Organelle DNA during Arabidopsis Pollen DevelopmentRyo Matsushima, Lay Yin Tang, Lingang Zhang, Hiroshi Yamada, David Twell, Wataru SakamotoPlant Cell Apr 2011, 23 (4) 1608-1624; DOI: https://doi.org/10.1105/tpc.111.084012
Extrachromosomal DNAs, present in plastids and mitochondria, are present in multiple copies and appear to be degraded in the mature pollen of most angiosperm species. This study, by deciphering a tissue-specific organelle DNA degradation mechanism, identifies the organellar nuclease that degrades these extrachromosomal DNAs during Arabidopsis pollen development.
Mayer, Klaus F.X.
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Meinicke, Peter
- You have accessRestricted AccessIdentification of Novel Plant Peroxisomal Targeting Signals by a Combination of Machine Learning Methods and in Vivo Subcellular Targeting AnalysesThomas Lingner, Amr R. Kataya, Gerardo E. Antonicelli, Aline Benichou, Kjersti Nilssen, Xiong-Yan Chen, Tanja Siemsen, Burkhard Morgenstern, Peter Meinicke, Sigrun ReumannPlant Cell Apr 2011, 23 (4) 1556-1572; DOI: https://doi.org/10.1105/tpc.111.084095
Two different prediction methods for Arabidopsis proteins carrying peroxisome targeting signals type 1 (PTS1) are described. Validation of many novel targeting signals and Arabidopsis PTS1 proteins by in vivo localization experiments demonstrates a high prediction accuracy of the new methods.
Meng, Xiangzong
- You have accessRestricted AccessPhosphorylation of a WRKY Transcription Factor by Two Pathogen-Responsive MAPKs Drives Phytoalexin Biosynthesis in ArabidopsisGuohong Mao, Xiangzong Meng, Yidong Liu, Zuyu Zheng, Zhixiang Chen, Shuqun ZhangPlant Cell Apr 2011, 23 (4) 1639-1653; DOI: https://doi.org/10.1105/tpc.111.084996
WRKY33 functions downstream of pathogen-responsive MPK3 and MPK6 in reprogramming the expression of camalexin biosynthetic genes; this drives the metabolic flow to camalexin production in Arabidopsis challenged by pathogens. Biochemical and genetic analyses demonstrate that the phosphorylation of WRKY33 by MPK3/MPK6 plays an important role in the process.
Merchant, Sabeeha S.
- Open AccessSystems Biology Approach in Chlamydomonas Reveals Connections between Copper Nutrition and Multiple Metabolic StepsMadeli Castruita, David Casero, Steven J. Karpowicz, Janette Kropat, Astrid Vieler, Scott I. Hsieh, Weihong Yan, Shawn Cokus, Joseph A. Loo, Christoph Benning, Matteo Pellegrini, Sabeeha S. MerchantPlant Cell Apr 2011, 23 (4) 1273-1292; DOI: https://doi.org/10.1105/tpc.111.084400
RNA-seq assessment of the transcriptome of autotrophic and heterotrophic Chlamydomonas as a function of copper nutrition reveals changes in redox metabolism regulated by CRR1, an SBP domain transcription factor. The changes in RNA abundance impact the abundance of specific plastid-localized proteins and the level of saturation of plastid galactolipids.
Minguet, Eugenio Gómez
- You have accessRestricted AccessPrediction of Regulatory Interactions from Genome Sequences Using a Biophysical Model for the Arabidopsis LEAFY Transcription FactorEdwige Moyroud, Eugenio Gómez Minguet, Felix Ott, Levi Yant, David Posé, Marie Monniaux, Sandrine Blanchet, Olivier Bastien, Emmanuel Thévenon, Detlef Weigel, Markus Schmid, François ParcyPlant Cell Apr 2011, 23 (4) 1293-1306; DOI: https://doi.org/10.1105/tpc.111.083329
This work presents the generation of a predictive model describing the DNA recognition specificity of the LEAFY floral transcription factor. The model is used to predict in vivo regulatory interactions between LEAFY and its target genes from mere inspection of various plant genome sequences.
Monniaux, Marie
- You have accessRestricted AccessPrediction of Regulatory Interactions from Genome Sequences Using a Biophysical Model for the Arabidopsis LEAFY Transcription FactorEdwige Moyroud, Eugenio Gómez Minguet, Felix Ott, Levi Yant, David Posé, Marie Monniaux, Sandrine Blanchet, Olivier Bastien, Emmanuel Thévenon, Detlef Weigel, Markus Schmid, François ParcyPlant Cell Apr 2011, 23 (4) 1293-1306; DOI: https://doi.org/10.1105/tpc.111.083329
This work presents the generation of a predictive model describing the DNA recognition specificity of the LEAFY floral transcription factor. The model is used to predict in vivo regulatory interactions between LEAFY and its target genes from mere inspection of various plant genome sequences.
Monroe, Jonathan D.
- Open Accessβ-Amylase–Like Proteins Function as Transcription Factors in Arabidopsis, Controlling Shoot Growth and DevelopmentHeike Reinhold, Sebastian Soyk, Klára Šimková, Carmen Hostettler, John Marafino, Samantha Mainiero, Cara K. Vaughan, Jonathan D. Monroe, Samuel C. ZeemanPlant Cell Apr 2011, 23 (4) 1391-1403; DOI: https://doi.org/10.1105/tpc.110.081950
Two proteins similar to β-amylases (enzymes usually associated with starch breakdown) possess a BZR1-type DNA binding domain and are nuclear localized. They bind a G box-containing motif and regulate the expression of genes, many of which also respond to brassinosteroids, to influence shoot growth. Similar proteins occur in other plants, implying functional conservation.
Morgenstern, Burkhard
- You have accessRestricted AccessIdentification of Novel Plant Peroxisomal Targeting Signals by a Combination of Machine Learning Methods and in Vivo Subcellular Targeting AnalysesThomas Lingner, Amr R. Kataya, Gerardo E. Antonicelli, Aline Benichou, Kjersti Nilssen, Xiong-Yan Chen, Tanja Siemsen, Burkhard Morgenstern, Peter Meinicke, Sigrun ReumannPlant Cell Apr 2011, 23 (4) 1556-1572; DOI: https://doi.org/10.1105/tpc.111.084095
Two different prediction methods for Arabidopsis proteins carrying peroxisome targeting signals type 1 (PTS1) are described. Validation of many novel targeting signals and Arabidopsis PTS1 proteins by in vivo localization experiments demonstrates a high prediction accuracy of the new methods.
Morris, Jenny A.
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Moyroud, Edwige
- You have accessRestricted AccessPrediction of Regulatory Interactions from Genome Sequences Using a Biophysical Model for the Arabidopsis LEAFY Transcription FactorEdwige Moyroud, Eugenio Gómez Minguet, Felix Ott, Levi Yant, David Posé, Marie Monniaux, Sandrine Blanchet, Olivier Bastien, Emmanuel Thévenon, Detlef Weigel, Markus Schmid, François ParcyPlant Cell Apr 2011, 23 (4) 1293-1306; DOI: https://doi.org/10.1105/tpc.111.083329
This work presents the generation of a predictive model describing the DNA recognition specificity of the LEAFY floral transcription factor. The model is used to predict in vivo regulatory interactions between LEAFY and its target genes from mere inspection of various plant genome sequences.
Mukhopadhyay, Aindrila
- Open AccessThe Interconversion of UDP-Arabinopyranose and UDP-Arabinofuranose Is Indispensable for Plant Development in ArabidopsisCarsten Rautengarten, Berit Ebert, Thomas Herter, Christopher J. Petzold, Tadashi Ishii, Aindrila Mukhopadhyay, Björn Usadel, Henrik Vibe SchellerPlant Cell Apr 2011, 23 (4) 1373-1390; DOI: https://doi.org/10.1105/tpc.111.083931
Incorporation of arabinose into plant cell wall polysaccharides requires conversion into the furanose form. This conversion is mediated exclusively by UDP-arabinose mutases (RGPs) located in the cytoplasm.
Mullineaux, Conrad W.
- You have accessRestricted AccessPhotoprotective Energy Dissipation Involves the Reorganization of Photosystem II Light-Harvesting Complexes in the Grana Membranes of Spinach ChloroplastsMatthew P. Johnson, Tomasz K. Goral, Christopher D.P. Duffy, Anthony P.R. Brain, Conrad W. Mullineaux, Alexander V. RubanPlant Cell Apr 2011, 23 (4) 1468-1479; DOI: https://doi.org/10.1105/tpc.110.081646
The rapidly reversible macrostructural changes in higher-plant chloroplast thylakoid membrane organization accompanying photoprotective energy dissipation (qE) are studied using freeze-fracture electron and laser confocal microscopy. qE is shown to involve the aggregation of light-harvesting complexes and their segregation from photosystem II.
Murat, Florent
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
N
Nagy, Ferenc
- You have accessRestricted AccessA DELLA in Disguise: SPATULA Restrains the Growth of the Developing Arabidopsis SeedlingEve-Marie Josse, Yinbo Gan, Jordi Bou-Torrent, Kelly L. Stewart, Alison D. Gilday, Christopher E. Jeffree, Fabián E. Vaistij, Jaime F. Martínez-García, Ferenc Nagy, Ian A. Graham, Karen J. HallidayPlant Cell Apr 2011, 23 (4) 1337-1351; DOI: https://doi.org/10.1105/tpc.110.082594
This study examines the role of the PHYTOCHROME INTERACTING FACTOR3 homolog SPATULA (SPT) in the control of the developing seedling and shows that SPT is a potent regulator of cotyledon size, acting in parallel to DELLAs. As DELLAs negatively regulate SPT abundance, the light regulation of DELLAs drives the DELLA-SPT counterbalance, enforcing growth restraint across a range of ambient light conditions that are prevalent in nature.
Nakamori, Chihiro
- You have accessRestricted AccessArabidopsis ABERRANT PEROXISOME MORPHOLOGY9 Is a Peroxin That Recruits the PEX1-PEX6 Complex to PeroxisomesShino Goto, Shoji Mano, Chihiro Nakamori, Mikio NishimuraPlant Cell Apr 2011, 23 (4) 1573-1587; DOI: https://doi.org/10.1105/tpc.110.080770
This study identifies APEM9 as an essential factor for peroxisomal protein transport in plants. APEM9 proteins have unique amino acid sequences, which are distinct from that of Pex26 functional homologs in mammals.
Nespoulous, Claude
- You have accessRestricted AccessArabidopsis thaliana High-Affinity Phosphate Transporters Exhibit Multiple Levels of Posttranslational RegulationVincent Bayle, Jean-François Arrighi, Audrey Creff, Claude Nespoulous, Jérôme Vialaret, Michel Rossignol, Esperanza Gonzalez, Javier Paz-Ares, Laurent NussaumePlant Cell Apr 2011, 23 (4) 1523-1535; DOI: https://doi.org/10.1105/tpc.110.081067
In Arabidopsis, the PHOSPHATE TRANSPORTER1 (PHT1) family encodes the high affinity phosphate transporters. This analysis revealed multiple steps of regulation in various cell compartments modulating the level of PHT1 proteins present in the plasma membrane in response to the level of inorganic phosphate.
Nieminen, Kaisa
- Open AccessMobile Gibberellin Directly Stimulates Arabidopsis Hypocotyl Xylem ExpansionLaura Ragni, Kaisa Nieminen, David Pacheco-Villalobos, Richard Sibout, Claus Schwechheimer, Christian S. HardtkePlant Cell Apr 2011, 23 (4) 1322-1336; DOI: https://doi.org/10.1105/tpc.111.084020
In this study, the authors find that the expansion of the xylem in Arabidopsis hypocotyls observed upon flowering is directly triggered by signaling through the plant hormone gibberellin. The authors also demonstrate that this involves mobile gibberellin, which therefore can act as a long-distance signal.
Nilssen, Kjersti
- You have accessRestricted AccessIdentification of Novel Plant Peroxisomal Targeting Signals by a Combination of Machine Learning Methods and in Vivo Subcellular Targeting AnalysesThomas Lingner, Amr R. Kataya, Gerardo E. Antonicelli, Aline Benichou, Kjersti Nilssen, Xiong-Yan Chen, Tanja Siemsen, Burkhard Morgenstern, Peter Meinicke, Sigrun ReumannPlant Cell Apr 2011, 23 (4) 1556-1572; DOI: https://doi.org/10.1105/tpc.111.084095
Two different prediction methods for Arabidopsis proteins carrying peroxisome targeting signals type 1 (PTS1) are described. Validation of many novel targeting signals and Arabidopsis PTS1 proteins by in vivo localization experiments demonstrates a high prediction accuracy of the new methods.
Nishimura, Mikio
- You have accessRestricted AccessArabidopsis ABERRANT PEROXISOME MORPHOLOGY9 Is a Peroxin That Recruits the PEX1-PEX6 Complex to PeroxisomesShino Goto, Shoji Mano, Chihiro Nakamori, Mikio NishimuraPlant Cell Apr 2011, 23 (4) 1573-1587; DOI: https://doi.org/10.1105/tpc.110.080770
This study identifies APEM9 as an essential factor for peroxisomal protein transport in plants. APEM9 proteins have unique amino acid sequences, which are distinct from that of Pex26 functional homologs in mammals.
Nussaume, Laurent
- You have accessRestricted AccessArabidopsis thaliana High-Affinity Phosphate Transporters Exhibit Multiple Levels of Posttranslational RegulationVincent Bayle, Jean-François Arrighi, Audrey Creff, Claude Nespoulous, Jérôme Vialaret, Michel Rossignol, Esperanza Gonzalez, Javier Paz-Ares, Laurent NussaumePlant Cell Apr 2011, 23 (4) 1523-1535; DOI: https://doi.org/10.1105/tpc.110.081067
In Arabidopsis, the PHOSPHATE TRANSPORTER1 (PHT1) family encodes the high affinity phosphate transporters. This analysis revealed multiple steps of regulation in various cell compartments modulating the level of PHT1 proteins present in the plasma membrane in response to the level of inorganic phosphate.
Nussbaumer, Thomas
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
O
Oliver, Melvin J.
- Open AccessA Sister Group Contrast Using Untargeted Global Metabolomic Analysis Delineates the Biochemical Regulation Underlying Desiccation Tolerance in Sporobolus stapfianusMelvin J. Oliver, Lining Guo, Danny C. Alexander, John A. Ryals, Bernard W.M. Wone, John C. CushmanPlant Cell Apr 2011, 23 (4) 1231-1248; DOI: https://doi.org/10.1105/tpc.110.082800
The desiccation-tolerant Sporobolus stapfianus and desiccation-sensitive Sporobolus pyramidalis form a sister group contrast to investigate adaptive metabolic responses to dehydration using untargeted global metabolomic analysis. The metabolic profiles obtained reveal a state of preparedness and a cascade of biochemical regulation strategies critical to the survival of S. stapfianus under desiccation.
Opekarová, Miroslava
- You have accessRestricted AccessIn Plant and Animal Cells, Detergent-Resistant Membranes Do Not Define Functional Membrane RaftsWidmar Tanner, Jan Malinsky, Miroslava OpekarováPlant Cell Apr 2011, 23 (4) 1191-1193; DOI: https://doi.org/10.1105/tpc.111.086249
Ott, Felix
- You have accessRestricted AccessPrediction of Regulatory Interactions from Genome Sequences Using a Biophysical Model for the Arabidopsis LEAFY Transcription FactorEdwige Moyroud, Eugenio Gómez Minguet, Felix Ott, Levi Yant, David Posé, Marie Monniaux, Sandrine Blanchet, Olivier Bastien, Emmanuel Thévenon, Detlef Weigel, Markus Schmid, François ParcyPlant Cell Apr 2011, 23 (4) 1293-1306; DOI: https://doi.org/10.1105/tpc.111.083329
This work presents the generation of a predictive model describing the DNA recognition specificity of the LEAFY floral transcription factor. The model is used to predict in vivo regulatory interactions between LEAFY and its target genes from mere inspection of various plant genome sequences.
Ouyang, Yidan
- Open AccessRice APOPTOSIS INHIBITOR5 Coupled with Two DEAD-Box Adenosine 5′-Triphosphate-Dependent RNA Helicases Regulates Tapetum DegenerationXingwang Li, Xinqiang Gao, Yi Wei, Li Deng, Yidan Ouyang, Guoxing Chen, Xianghua Li, Qifa Zhang, Changyin WuPlant Cell Apr 2011, 23 (4) 1416-1434; DOI: https://doi.org/10.1105/tpc.110.082636
This study examines the role of API5, a homolog of animal antiapoptosis proteins, in the degeneration of the tapetum during the formation of male gametophytes in rice. It describes a previously unknown pathway for regulating programmed cell death, one that may be conserved among eukaryotic organisms.
P
Pacheco-Villalobos, David
- Open AccessMobile Gibberellin Directly Stimulates Arabidopsis Hypocotyl Xylem ExpansionLaura Ragni, Kaisa Nieminen, David Pacheco-Villalobos, Richard Sibout, Claus Schwechheimer, Christian S. HardtkePlant Cell Apr 2011, 23 (4) 1322-1336; DOI: https://doi.org/10.1105/tpc.111.084020
In this study, the authors find that the expansion of the xylem in Arabidopsis hypocotyls observed upon flowering is directly triggered by signaling through the plant hormone gibberellin. The authors also demonstrate that this involves mobile gibberellin, which therefore can act as a long-distance signal.
Parcy, François
- You have accessRestricted AccessPrediction of Regulatory Interactions from Genome Sequences Using a Biophysical Model for the Arabidopsis LEAFY Transcription FactorEdwige Moyroud, Eugenio Gómez Minguet, Felix Ott, Levi Yant, David Posé, Marie Monniaux, Sandrine Blanchet, Olivier Bastien, Emmanuel Thévenon, Detlef Weigel, Markus Schmid, François ParcyPlant Cell Apr 2011, 23 (4) 1293-1306; DOI: https://doi.org/10.1105/tpc.111.083329
This work presents the generation of a predictive model describing the DNA recognition specificity of the LEAFY floral transcription factor. The model is used to predict in vivo regulatory interactions between LEAFY and its target genes from mere inspection of various plant genome sequences.
Park, Jeongmoo
- You have accessRestricted AccessABI3 and PIL5 Collaboratively Activate the Expression of SOMNUS by Directly Binding to Its Promoter in Imbibed Arabidopsis SeedsJeongmoo Park, Nayoung Lee, Woohyun Kim, Soohwan Lim, Giltsu ChoiPlant Cell Apr 2011, 23 (4) 1404-1415; DOI: https://doi.org/10.1105/tpc.110.080721
This study examines the regulation of SOMNUS (SOM), which is a key negative regulator of seed germination. ABI3 was found to regulate SOM expression together with PIL5, a previously identified regulator of SOM. PIL5 and ABI3, which interact to form a complex, regulate SOM expression independently in maturing seeds, but collaboratively in imbibed seeds.
Paz-Ares, Javier
- You have accessRestricted AccessArabidopsis thaliana High-Affinity Phosphate Transporters Exhibit Multiple Levels of Posttranslational RegulationVincent Bayle, Jean-François Arrighi, Audrey Creff, Claude Nespoulous, Jérôme Vialaret, Michel Rossignol, Esperanza Gonzalez, Javier Paz-Ares, Laurent NussaumePlant Cell Apr 2011, 23 (4) 1523-1535; DOI: https://doi.org/10.1105/tpc.110.081067
In Arabidopsis, the PHOSPHATE TRANSPORTER1 (PHT1) family encodes the high affinity phosphate transporters. This analysis revealed multiple steps of regulation in various cell compartments modulating the level of PHT1 proteins present in the plasma membrane in response to the level of inorganic phosphate.
Pellegrini, Matteo
- Open AccessSystems Biology Approach in Chlamydomonas Reveals Connections between Copper Nutrition and Multiple Metabolic StepsMadeli Castruita, David Casero, Steven J. Karpowicz, Janette Kropat, Astrid Vieler, Scott I. Hsieh, Weihong Yan, Shawn Cokus, Joseph A. Loo, Christoph Benning, Matteo Pellegrini, Sabeeha S. MerchantPlant Cell Apr 2011, 23 (4) 1273-1292; DOI: https://doi.org/10.1105/tpc.111.084400
RNA-seq assessment of the transcriptome of autotrophic and heterotrophic Chlamydomonas as a function of copper nutrition reveals changes in redox metabolism regulated by CRR1, an SBP domain transcription factor. The changes in RNA abundance impact the abundance of specific plastid-localized proteins and the level of saturation of plastid galactolipids.
Peng, Lianwei
- You have accessRestricted AccessAn Src Homology 3 Domain-Like Fold Protein Forms a Ferredoxin Binding Site for the Chloroplast NADH Dehydrogenase-Like Complex in ArabidopsisHiroshi Yamamoto, Lianwei Peng, Yoichiro Fukao, Toshiharu ShikanaiPlant Cell Apr 2011, 23 (4) 1480-1493; DOI: https://doi.org/10.1105/tpc.110.080291
Chloroplast NAD(P)H dehydrogenase (NDH) has been thought to function as an NAD(P)H:plastoquinone oxidoreductase in cyclic electron transport around photosystem I, although its electron donor binding site was unclear. This study indicates that CRR31, a novel NDH subunit, serves in the high-affinity binding of ferredoxin to NDH and proposes that chloroplast NDH is ferredoxin:plastoquinone oxidoreductase.
Pérez-Martín, José
- You have accessRestricted AccessThe DNA Damage Response Signaling Cascade Regulates Proliferation of the Phytopathogenic Fungus Ustilago maydis in PlantaCarmen de Sena-Tomás, Alfonso Fernández-Álvarez, William K. Holloman, José Pérez-MartínPlant Cell Apr 2011, 23 (4) 1654-1665; DOI: https://doi.org/10.1105/tpc.110.082552
This work shows that in the phytopathogenic fungus Ustilago maydis, the genetic pathway involved in the transmission of signals required for the response to DNA damage is also used to control the specific dikaryotic cell cycle that predominates proliferation in planta.
Petzold, Christopher J.
- Open AccessThe Interconversion of UDP-Arabinopyranose and UDP-Arabinofuranose Is Indispensable for Plant Development in ArabidopsisCarsten Rautengarten, Berit Ebert, Thomas Herter, Christopher J. Petzold, Tadashi Ishii, Aindrila Mukhopadhyay, Björn Usadel, Henrik Vibe SchellerPlant Cell Apr 2011, 23 (4) 1373-1390; DOI: https://doi.org/10.1105/tpc.111.083931
Incorporation of arabinose into plant cell wall polysaccharides requires conversion into the furanose form. This conversion is mediated exclusively by UDP-arabinose mutases (RGPs) located in the cytoplasm.
Platzer, Matthias
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Posé, David
- You have accessRestricted AccessPrediction of Regulatory Interactions from Genome Sequences Using a Biophysical Model for the Arabidopsis LEAFY Transcription FactorEdwige Moyroud, Eugenio Gómez Minguet, Felix Ott, Levi Yant, David Posé, Marie Monniaux, Sandrine Blanchet, Olivier Bastien, Emmanuel Thévenon, Detlef Weigel, Markus Schmid, François ParcyPlant Cell Apr 2011, 23 (4) 1293-1306; DOI: https://doi.org/10.1105/tpc.111.083329
This work presents the generation of a predictive model describing the DNA recognition specificity of the LEAFY floral transcription factor. The model is used to predict in vivo regulatory interactions between LEAFY and its target genes from mere inspection of various plant genome sequences.
Q
Qin, Genji
- Open Accessd-myo-Inositol-3-Phosphate Affects Phosphatidylinositol-Mediated Endomembrane Function in Arabidopsis and Is Essential for Auxin-Regulated EmbryogenesisYu Luo, Genji Qin, Jun Zhang, Yuan Liang, Yingqi Song, Meiping Zhao, Tomohiko Tsuge, Takashi Aoyama, Jingjing Liu, Hongya Gu, Li-Jia QuPlant Cell Apr 2011, 23 (4) 1352-1372; DOI: https://doi.org/10.1105/tpc.111.083337
This work reveals the significant roles of myo-inositol in Arabidopsis embryogenesis. Experiments show that depletion of myo-inositol by knocking out multiple MIPS genes, which encode d-myo-inositol-3-phosphate synthase, could affect the membrane trafficking via the phosphatidylinositol metabolism by leading to altered auxin distribution in developing embryos.
Qu, Li-Jia
- Open Accessd-myo-Inositol-3-Phosphate Affects Phosphatidylinositol-Mediated Endomembrane Function in Arabidopsis and Is Essential for Auxin-Regulated EmbryogenesisYu Luo, Genji Qin, Jun Zhang, Yuan Liang, Yingqi Song, Meiping Zhao, Tomohiko Tsuge, Takashi Aoyama, Jingjing Liu, Hongya Gu, Li-Jia QuPlant Cell Apr 2011, 23 (4) 1352-1372; DOI: https://doi.org/10.1105/tpc.111.083337
This work reveals the significant roles of myo-inositol in Arabidopsis embryogenesis. Experiments show that depletion of myo-inositol by knocking out multiple MIPS genes, which encode d-myo-inositol-3-phosphate synthase, could affect the membrane trafficking via the phosphatidylinositol metabolism by leading to altered auxin distribution in developing embryos.
R
Ragni, Laura
- Open AccessMobile Gibberellin Directly Stimulates Arabidopsis Hypocotyl Xylem ExpansionLaura Ragni, Kaisa Nieminen, David Pacheco-Villalobos, Richard Sibout, Claus Schwechheimer, Christian S. HardtkePlant Cell Apr 2011, 23 (4) 1322-1336; DOI: https://doi.org/10.1105/tpc.111.084020
In this study, the authors find that the expansion of the xylem in Arabidopsis hypocotyls observed upon flowering is directly triggered by signaling through the plant hormone gibberellin. The authors also demonstrate that this involves mobile gibberellin, which therefore can act as a long-distance signal.
Rautengarten, Carsten
- Open AccessThe Interconversion of UDP-Arabinopyranose and UDP-Arabinofuranose Is Indispensable for Plant Development in ArabidopsisCarsten Rautengarten, Berit Ebert, Thomas Herter, Christopher J. Petzold, Tadashi Ishii, Aindrila Mukhopadhyay, Björn Usadel, Henrik Vibe SchellerPlant Cell Apr 2011, 23 (4) 1373-1390; DOI: https://doi.org/10.1105/tpc.111.083931
Incorporation of arabinose into plant cell wall polysaccharides requires conversion into the furanose form. This conversion is mediated exclusively by UDP-arabinose mutases (RGPs) located in the cytoplasm.
Reinhold, Heike
- Open Accessβ-Amylase–Like Proteins Function as Transcription Factors in Arabidopsis, Controlling Shoot Growth and DevelopmentHeike Reinhold, Sebastian Soyk, Klára Šimková, Carmen Hostettler, John Marafino, Samantha Mainiero, Cara K. Vaughan, Jonathan D. Monroe, Samuel C. ZeemanPlant Cell Apr 2011, 23 (4) 1391-1403; DOI: https://doi.org/10.1105/tpc.110.081950
Two proteins similar to β-amylases (enzymes usually associated with starch breakdown) possess a BZR1-type DNA binding domain and are nuclear localized. They bind a G box-containing motif and regulate the expression of genes, many of which also respond to brassinosteroids, to influence shoot growth. Similar proteins occur in other plants, implying functional conservation.
Reumann, Sigrun
- You have accessRestricted AccessIdentification of Novel Plant Peroxisomal Targeting Signals by a Combination of Machine Learning Methods and in Vivo Subcellular Targeting AnalysesThomas Lingner, Amr R. Kataya, Gerardo E. Antonicelli, Aline Benichou, Kjersti Nilssen, Xiong-Yan Chen, Tanja Siemsen, Burkhard Morgenstern, Peter Meinicke, Sigrun ReumannPlant Cell Apr 2011, 23 (4) 1556-1572; DOI: https://doi.org/10.1105/tpc.111.084095
Two different prediction methods for Arabidopsis proteins carrying peroxisome targeting signals type 1 (PTS1) are described. Validation of many novel targeting signals and Arabidopsis PTS1 proteins by in vivo localization experiments demonstrates a high prediction accuracy of the new methods.
Roessner, Stephan
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Rossignol, Michel
- You have accessRestricted AccessArabidopsis thaliana High-Affinity Phosphate Transporters Exhibit Multiple Levels of Posttranslational RegulationVincent Bayle, Jean-François Arrighi, Audrey Creff, Claude Nespoulous, Jérôme Vialaret, Michel Rossignol, Esperanza Gonzalez, Javier Paz-Ares, Laurent NussaumePlant Cell Apr 2011, 23 (4) 1523-1535; DOI: https://doi.org/10.1105/tpc.110.081067
In Arabidopsis, the PHOSPHATE TRANSPORTER1 (PHT1) family encodes the high affinity phosphate transporters. This analysis revealed multiple steps of regulation in various cell compartments modulating the level of PHT1 proteins present in the plasma membrane in response to the level of inorganic phosphate.
Ruban, Alexander V.
- You have accessRestricted AccessPhotoprotective Energy Dissipation Involves the Reorganization of Photosystem II Light-Harvesting Complexes in the Grana Membranes of Spinach ChloroplastsMatthew P. Johnson, Tomasz K. Goral, Christopher D.P. Duffy, Anthony P.R. Brain, Conrad W. Mullineaux, Alexander V. RubanPlant Cell Apr 2011, 23 (4) 1468-1479; DOI: https://doi.org/10.1105/tpc.110.081646
The rapidly reversible macrostructural changes in higher-plant chloroplast thylakoid membrane organization accompanying photoprotective energy dissipation (qE) are studied using freeze-fracture electron and laser confocal microscopy. qE is shown to involve the aggregation of light-harvesting complexes and their segregation from photosystem II.
Ryals, John A.
- Open AccessA Sister Group Contrast Using Untargeted Global Metabolomic Analysis Delineates the Biochemical Regulation Underlying Desiccation Tolerance in Sporobolus stapfianusMelvin J. Oliver, Lining Guo, Danny C. Alexander, John A. Ryals, Bernard W.M. Wone, John C. CushmanPlant Cell Apr 2011, 23 (4) 1231-1248; DOI: https://doi.org/10.1105/tpc.110.082800
The desiccation-tolerant Sporobolus stapfianus and desiccation-sensitive Sporobolus pyramidalis form a sister group contrast to investigate adaptive metabolic responses to dehydration using untargeted global metabolomic analysis. The metabolic profiles obtained reveal a state of preparedness and a cascade of biochemical regulation strategies critical to the survival of S. stapfianus under desiccation.
S
Sakai, Hiroaki
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Sakamoto, Wataru
- You have accessRestricted AccessA Conserved, Mg2+-Dependent Exonuclease Degrades Organelle DNA during Arabidopsis Pollen DevelopmentRyo Matsushima, Lay Yin Tang, Lingang Zhang, Hiroshi Yamada, David Twell, Wataru SakamotoPlant Cell Apr 2011, 23 (4) 1608-1624; DOI: https://doi.org/10.1105/tpc.111.084012
Extrachromosomal DNAs, present in plastids and mitochondria, are present in multiple copies and appear to be degraded in the mature pollen of most angiosperm species. This study, by deciphering a tissue-specific organelle DNA degradation mechanism, identifies the organellar nuclease that degrades these extrachromosomal DNAs during Arabidopsis pollen development.
Salse, Jerome
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Sato, Kazuhiro
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Scheller, Henrik Vibe
- Open AccessThe Interconversion of UDP-Arabinopyranose and UDP-Arabinofuranose Is Indispensable for Plant Development in ArabidopsisCarsten Rautengarten, Berit Ebert, Thomas Herter, Christopher J. Petzold, Tadashi Ishii, Aindrila Mukhopadhyay, Björn Usadel, Henrik Vibe SchellerPlant Cell Apr 2011, 23 (4) 1373-1390; DOI: https://doi.org/10.1105/tpc.111.083931
Incorporation of arabinose into plant cell wall polysaccharides requires conversion into the furanose form. This conversion is mediated exclusively by UDP-arabinose mutases (RGPs) located in the cytoplasm.
Schmid, Markus
- You have accessRestricted AccessPrediction of Regulatory Interactions from Genome Sequences Using a Biophysical Model for the Arabidopsis LEAFY Transcription FactorEdwige Moyroud, Eugenio Gómez Minguet, Felix Ott, Levi Yant, David Posé, Marie Monniaux, Sandrine Blanchet, Olivier Bastien, Emmanuel Thévenon, Detlef Weigel, Markus Schmid, François ParcyPlant Cell Apr 2011, 23 (4) 1293-1306; DOI: https://doi.org/10.1105/tpc.111.083329
This work presents the generation of a predictive model describing the DNA recognition specificity of the LEAFY floral transcription factor. The model is used to predict in vivo regulatory interactions between LEAFY and its target genes from mere inspection of various plant genome sequences.
Schnittger, Arp
- You have accessRestricted AccessThe Arabidopsis thaliana Checkpoint Kinase WEE1 Protects against Premature Vascular Differentiation during Replication StressToon Cools, Anelia Iantcheva, Annika K. Weimer, Shannah Boens, Naoki Takahashi, Sara Maes, Hilde Van den Daele, Gert Van Isterdael, Arp Schnittger, Lieven De VeylderPlant Cell Apr 2011, 23 (4) 1435-1448; DOI: https://doi.org/10.1105/tpc.110.082768
Because of their sessile lifestyle, plants need to react promptly to factors that affect meristem integrity. This work shows that the WEE1 checkpoint kinase maintains the root meristem activity under replication stress by controlling S-phase progression, thereby preventing premature onset of vascular cell differentiation.
Scholz, Uwe
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Schwechheimer, Claus
- Open AccessMobile Gibberellin Directly Stimulates Arabidopsis Hypocotyl Xylem ExpansionLaura Ragni, Kaisa Nieminen, David Pacheco-Villalobos, Richard Sibout, Claus Schwechheimer, Christian S. HardtkePlant Cell Apr 2011, 23 (4) 1322-1336; DOI: https://doi.org/10.1105/tpc.111.084020
In this study, the authors find that the expansion of the xylem in Arabidopsis hypocotyls observed upon flowering is directly triggered by signaling through the plant hormone gibberellin. The authors also demonstrate that this involves mobile gibberellin, which therefore can act as a long-distance signal.
Shadle, Gail
- Open AccessMATE2 Mediates Vacuolar Sequestration of Flavonoid Glycosides and Glycoside Malonates in Medicago truncatulaJian Zhao, David Huhman, Gail Shadle, Xian-Zhi He, Lloyd W. Sumner, Yuhong Tang, Richard A. DixonPlant Cell Apr 2011, 23 (4) 1536-1555; DOI: https://doi.org/10.1105/tpc.110.080804
This work identifies MATE2, which transports glycosylated flavonoids into the vacuole, showing higher transport efficiency with anthocyanins than other flavonoid glycosides, and an increase in transport efficiency for malonylated flavonoid glucosides. Null mutants of MATE2 show decreases of anthocyanins and increases in other flavonoids, such as seed proanthocyanidin.
Shikanai, Toshiharu
- You have accessRestricted AccessAn Src Homology 3 Domain-Like Fold Protein Forms a Ferredoxin Binding Site for the Chloroplast NADH Dehydrogenase-Like Complex in ArabidopsisHiroshi Yamamoto, Lianwei Peng, Yoichiro Fukao, Toshiharu ShikanaiPlant Cell Apr 2011, 23 (4) 1480-1493; DOI: https://doi.org/10.1105/tpc.110.080291
Chloroplast NAD(P)H dehydrogenase (NDH) has been thought to function as an NAD(P)H:plastoquinone oxidoreductase in cyclic electron transport around photosystem I, although its electron donor binding site was unclear. This study indicates that CRR31, a novel NDH subunit, serves in the high-affinity binding of ferredoxin to NDH and proposes that chloroplast NDH is ferredoxin:plastoquinone oxidoreductase.
Sibout, Richard
- Open AccessMobile Gibberellin Directly Stimulates Arabidopsis Hypocotyl Xylem ExpansionLaura Ragni, Kaisa Nieminen, David Pacheco-Villalobos, Richard Sibout, Claus Schwechheimer, Christian S. HardtkePlant Cell Apr 2011, 23 (4) 1322-1336; DOI: https://doi.org/10.1105/tpc.111.084020
In this study, the authors find that the expansion of the xylem in Arabidopsis hypocotyls observed upon flowering is directly triggered by signaling through the plant hormone gibberellin. The authors also demonstrate that this involves mobile gibberellin, which therefore can act as a long-distance signal.
Siemsen, Tanja
- You have accessRestricted AccessIdentification of Novel Plant Peroxisomal Targeting Signals by a Combination of Machine Learning Methods and in Vivo Subcellular Targeting AnalysesThomas Lingner, Amr R. Kataya, Gerardo E. Antonicelli, Aline Benichou, Kjersti Nilssen, Xiong-Yan Chen, Tanja Siemsen, Burkhard Morgenstern, Peter Meinicke, Sigrun ReumannPlant Cell Apr 2011, 23 (4) 1556-1572; DOI: https://doi.org/10.1105/tpc.111.084095
Two different prediction methods for Arabidopsis proteins carrying peroxisome targeting signals type 1 (PTS1) are described. Validation of many novel targeting signals and Arabidopsis PTS1 proteins by in vivo localization experiments demonstrates a high prediction accuracy of the new methods.
Šimková, Hana
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Šimková, Klára
- Open Accessβ-Amylase–Like Proteins Function as Transcription Factors in Arabidopsis, Controlling Shoot Growth and DevelopmentHeike Reinhold, Sebastian Soyk, Klára Šimková, Carmen Hostettler, John Marafino, Samantha Mainiero, Cara K. Vaughan, Jonathan D. Monroe, Samuel C. ZeemanPlant Cell Apr 2011, 23 (4) 1391-1403; DOI: https://doi.org/10.1105/tpc.110.081950
Two proteins similar to β-amylases (enzymes usually associated with starch breakdown) possess a BZR1-type DNA binding domain and are nuclear localized. They bind a G box-containing motif and regulate the expression of genes, many of which also respond to brassinosteroids, to influence shoot growth. Similar proteins occur in other plants, implying functional conservation.
Song, Yingqi
- Open Accessd-myo-Inositol-3-Phosphate Affects Phosphatidylinositol-Mediated Endomembrane Function in Arabidopsis and Is Essential for Auxin-Regulated EmbryogenesisYu Luo, Genji Qin, Jun Zhang, Yuan Liang, Yingqi Song, Meiping Zhao, Tomohiko Tsuge, Takashi Aoyama, Jingjing Liu, Hongya Gu, Li-Jia QuPlant Cell Apr 2011, 23 (4) 1352-1372; DOI: https://doi.org/10.1105/tpc.111.083337
This work reveals the significant roles of myo-inositol in Arabidopsis embryogenesis. Experiments show that depletion of myo-inositol by knocking out multiple MIPS genes, which encode d-myo-inositol-3-phosphate synthase, could affect the membrane trafficking via the phosphatidylinositol metabolism by leading to altered auxin distribution in developing embryos.
Soyk, Sebastian
- Open Accessβ-Amylase–Like Proteins Function as Transcription Factors in Arabidopsis, Controlling Shoot Growth and DevelopmentHeike Reinhold, Sebastian Soyk, Klára Šimková, Carmen Hostettler, John Marafino, Samantha Mainiero, Cara K. Vaughan, Jonathan D. Monroe, Samuel C. ZeemanPlant Cell Apr 2011, 23 (4) 1391-1403; DOI: https://doi.org/10.1105/tpc.110.081950
Two proteins similar to β-amylases (enzymes usually associated with starch breakdown) possess a BZR1-type DNA binding domain and are nuclear localized. They bind a G box-containing motif and regulate the expression of genes, many of which also respond to brassinosteroids, to influence shoot growth. Similar proteins occur in other plants, implying functional conservation.
Stein, Nils
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Steuernagel, Burkhard
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Stewart, Kelly L.
- You have accessRestricted AccessA DELLA in Disguise: SPATULA Restrains the Growth of the Developing Arabidopsis SeedlingEve-Marie Josse, Yinbo Gan, Jordi Bou-Torrent, Kelly L. Stewart, Alison D. Gilday, Christopher E. Jeffree, Fabián E. Vaistij, Jaime F. Martínez-García, Ferenc Nagy, Ian A. Graham, Karen J. HallidayPlant Cell Apr 2011, 23 (4) 1337-1351; DOI: https://doi.org/10.1105/tpc.110.082594
This study examines the role of the PHYTOCHROME INTERACTING FACTOR3 homolog SPATULA (SPT) in the control of the developing seedling and shows that SPT is a potent regulator of cotyledon size, acting in parallel to DELLAs. As DELLAs negatively regulate SPT abundance, the light regulation of DELLAs drives the DELLA-SPT counterbalance, enforcing growth restraint across a range of ambient light conditions that are prevalent in nature.
Strand, Deserah D.
- You have accessRestricted AccessGUN4-Porphyrin Complexes Bind the ChlH/GUN5 Subunit of Mg-Chelatase and Promote Chlorophyll Biosynthesis in ArabidopsisNeil D. Adhikari, John E. Froehlich, Deserah D. Strand, Stephanie M. Buck, David M. Kramer, Robert M. LarkinPlant Cell Apr 2011, 23 (4) 1449-1467; DOI: https://doi.org/10.1105/tpc.110.082503
We show that GUN4-porphyrin complexes help to channel protoporphyrin IX into chlorophyll biosynthesis by binding to the ChlH subunit of Mg-chelatase with a higher affinity than unliganded GUN4 on Arabidopsis chloroplast membranes. GUN4 and ChlH used distinct mechanisms to associate with chloroplast membranes, and mutant alleles of GUN4 and Mg-chelatase subunit genes cause sensitivity to intense light.
Suchánková, Pavla
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Sumner, Lloyd W.
- Open AccessMATE2 Mediates Vacuolar Sequestration of Flavonoid Glycosides and Glycoside Malonates in Medicago truncatulaJian Zhao, David Huhman, Gail Shadle, Xian-Zhi He, Lloyd W. Sumner, Yuhong Tang, Richard A. DixonPlant Cell Apr 2011, 23 (4) 1536-1555; DOI: https://doi.org/10.1105/tpc.110.080804
This work identifies MATE2, which transports glycosylated flavonoids into the vacuole, showing higher transport efficiency with anthocyanins than other flavonoid glycosides, and an increase in transport efficiency for malonylated flavonoid glucosides. Null mutants of MATE2 show decreases of anthocyanins and increases in other flavonoids, such as seed proanthocyanidin.
T
Takahashi, Naoki
- You have accessRestricted AccessThe Arabidopsis thaliana Checkpoint Kinase WEE1 Protects against Premature Vascular Differentiation during Replication StressToon Cools, Anelia Iantcheva, Annika K. Weimer, Shannah Boens, Naoki Takahashi, Sara Maes, Hilde Van den Daele, Gert Van Isterdael, Arp Schnittger, Lieven De VeylderPlant Cell Apr 2011, 23 (4) 1435-1448; DOI: https://doi.org/10.1105/tpc.110.082768
Because of their sessile lifestyle, plants need to react promptly to factors that affect meristem integrity. This work shows that the WEE1 checkpoint kinase maintains the root meristem activity under replication stress by controlling S-phase progression, thereby preventing premature onset of vascular cell differentiation.
Tanaka, Tsuyoshi
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Tang, Lay Yin
- You have accessRestricted AccessA Conserved, Mg2+-Dependent Exonuclease Degrades Organelle DNA during Arabidopsis Pollen DevelopmentRyo Matsushima, Lay Yin Tang, Lingang Zhang, Hiroshi Yamada, David Twell, Wataru SakamotoPlant Cell Apr 2011, 23 (4) 1608-1624; DOI: https://doi.org/10.1105/tpc.111.084012
Extrachromosomal DNAs, present in plastids and mitochondria, are present in multiple copies and appear to be degraded in the mature pollen of most angiosperm species. This study, by deciphering a tissue-specific organelle DNA degradation mechanism, identifies the organellar nuclease that degrades these extrachromosomal DNAs during Arabidopsis pollen development.
Tang, Yuhong
- Open AccessMATE2 Mediates Vacuolar Sequestration of Flavonoid Glycosides and Glycoside Malonates in Medicago truncatulaJian Zhao, David Huhman, Gail Shadle, Xian-Zhi He, Lloyd W. Sumner, Yuhong Tang, Richard A. DixonPlant Cell Apr 2011, 23 (4) 1536-1555; DOI: https://doi.org/10.1105/tpc.110.080804
This work identifies MATE2, which transports glycosylated flavonoids into the vacuole, showing higher transport efficiency with anthocyanins than other flavonoid glycosides, and an increase in transport efficiency for malonylated flavonoid glucosides. Null mutants of MATE2 show decreases of anthocyanins and increases in other flavonoids, such as seed proanthocyanidin.
Tanner, Widmar
- You have accessRestricted AccessIn Plant and Animal Cells, Detergent-Resistant Membranes Do Not Define Functional Membrane RaftsWidmar Tanner, Jan Malinsky, Miroslava OpekarováPlant Cell Apr 2011, 23 (4) 1191-1193; DOI: https://doi.org/10.1105/tpc.111.086249
Taudien, Stefan
- Open AccessUnlocking the Barley Genome by Chromosomal and Comparative GenomicsKlaus F.X. Mayer, Mihaela Martis, Pete E. Hedley, Hana Šimková, Hui Liu, Jenny A. Morris, Burkhard Steuernagel, Stefan Taudien, Stephan Roessner, Heidrun Gundlach, Marie Kubaláková, Pavla Suchánková, Florent Murat, Marius Felder, Thomas Nussbaumer, Andreas Graner, Jerome Salse, Takashi Endo, Hiroaki Sakai, Tsuyoshi Tanaka, Takeshi Itoh, Kazuhiro Sato, Matthias Platzer, Takashi Matsumoto, Uwe Scholz, Jaroslav Doležel, Robbie Waugh, Nils SteinPlant Cell Apr 2011, 23 (4) 1249-1263; DOI: https://doi.org/10.1105/tpc.110.082537
Survey sequence and array hybridization data from flow-sorted barley chromosomes were integrated using a comparative genomics model to define an ordered gene map of the barley genome that contains approximately two-thirds of its estimated 32000 genes. The resulting high-resolution framework facilitated a genome-wide structural analysis of the barley genome and a detailed comparative analysis with wheat.
Thévenon, Emmanuel
- You have accessRestricted AccessPrediction of Regulatory Interactions from Genome Sequences Using a Biophysical Model for the Arabidopsis LEAFY Transcription FactorEdwige Moyroud, Eugenio Gómez Minguet, Felix Ott, Levi Yant, David Posé, Marie Monniaux, Sandrine Blanchet, Olivier Bastien, Emmanuel Thévenon, Detlef Weigel, Markus Schmid, François ParcyPlant Cell Apr 2011, 23 (4) 1293-1306; DOI: https://doi.org/10.1105/tpc.111.083329
This work presents the generation of a predictive model describing the DNA recognition specificity of the LEAFY floral transcription factor. The model is used to predict in vivo regulatory interactions between LEAFY and its target genes from mere inspection of various plant genome sequences.
Tsuge, Tomohiko
- Open Accessd-myo-Inositol-3-Phosphate Affects Phosphatidylinositol-Mediated Endomembrane Function in Arabidopsis and Is Essential for Auxin-Regulated EmbryogenesisYu Luo, Genji Qin, Jun Zhang, Yuan Liang, Yingqi Song, Meiping Zhao, Tomohiko Tsuge, Takashi Aoyama, Jingjing Liu, Hongya Gu, Li-Jia QuPlant Cell Apr 2011, 23 (4) 1352-1372; DOI: https://doi.org/10.1105/tpc.111.083337
This work reveals the significant roles of myo-inositol in Arabidopsis embryogenesis. Experiments show that depletion of myo-inositol by knocking out multiple MIPS genes, which encode d-myo-inositol-3-phosphate synthase, could affect the membrane trafficking via the phosphatidylinositol metabolism by leading to altered auxin distribution in developing embryos.
Twell, David
- You have accessRestricted AccessA Conserved, Mg2+-Dependent Exonuclease Degrades Organelle DNA during Arabidopsis Pollen DevelopmentRyo Matsushima, Lay Yin Tang, Lingang Zhang, Hiroshi Yamada, David Twell, Wataru SakamotoPlant Cell Apr 2011, 23 (4) 1608-1624; DOI: https://doi.org/10.1105/tpc.111.084012
Extrachromosomal DNAs, present in plastids and mitochondria, are present in multiple copies and appear to be degraded in the mature pollen of most angiosperm species. This study, by deciphering a tissue-specific organelle DNA degradation mechanism, identifies the organellar nuclease that degrades these extrachromosomal DNAs during Arabidopsis pollen development.
Tzin, Vered
- You have accessRestricted AccessCoordinated Gene Networks Regulating Arabidopsis Plant Metabolism in Response to Various Stresses and Nutritional CuesHadar Less, Ruthie Angelovici, Vered Tzin, Gad GaliliPlant Cell Apr 2011, 23 (4) 1264-1271; DOI: https://doi.org/10.1105/tpc.110.082867
This work introduces a bioinformatics approach that identifies positive and negative coordination of gene expression between sets of genes, or entire gene networks, in response to environmental or developmental cues. The approach is illustrated by a case study that identifies distinct expression behavior of the energy-associated gene network in response to different biotic and abiotic stresses.
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Udomporn, Petchthai
- Open AccessThe 21-Nucleotide, but Not 22-Nucleotide, Viral Secondary Small Interfering RNAs Direct Potent Antiviral Defense by Two Cooperative Argonautes in Arabidopsis thalianaXian-Bing Wang, Juan Jovel, Petchthai Udomporn, Ying Wang, Qingfa Wu, Wan-Xiang Li, Virginie Gasciolli, Herve Vaucheret, Shou-Wei DingPlant Cell Apr 2011, 23 (4) 1625-1638; DOI: https://doi.org/10.1105/tpc.110.082305
This work identifies cooperative action of ARGONAUTE1 and ARGONAUTE2 in virus resistance conferred by 21-nucleotide virus-derived small interfering RNAs (siRNAs). It also reveals that 22-nucleotide viral siRNAs do not guide efficient antiviral defense, demonstrating a qualitative difference between 21- and 22-nucleotide classes of siRNAs in RNA silencing.
Usadel, Björn
- Open AccessThe Interconversion of UDP-Arabinopyranose and UDP-Arabinofuranose Is Indispensable for Plant Development in ArabidopsisCarsten Rautengarten, Berit Ebert, Thomas Herter, Christopher J. Petzold, Tadashi Ishii, Aindrila Mukhopadhyay, Björn Usadel, Henrik Vibe SchellerPlant Cell Apr 2011, 23 (4) 1373-1390; DOI: https://doi.org/10.1105/tpc.111.083931
Incorporation of arabinose into plant cell wall polysaccharides requires conversion into the furanose form. This conversion is mediated exclusively by UDP-arabinose mutases (RGPs) located in the cytoplasm.
V
Vaistij, Fabián E.
- You have accessRestricted AccessA DELLA in Disguise: SPATULA Restrains the Growth of the Developing Arabidopsis SeedlingEve-Marie Josse, Yinbo Gan, Jordi Bou-Torrent, Kelly L. Stewart, Alison D. Gilday, Christopher E. Jeffree, Fabián E. Vaistij, Jaime F. Martínez-García, Ferenc Nagy, Ian A. Graham, Karen J. HallidayPlant Cell Apr 2011, 23 (4) 1337-1351; DOI: https://doi.org/10.1105/tpc.110.082594
This study examines the role of the PHYTOCHROME INTERACTING FACTOR3 homolog SPATULA (SPT) in the control of the developing seedling and shows that SPT is a potent regulator of cotyledon size, acting in parallel to DELLAs. As DELLAs negatively regulate SPT abundance, the light regulation of DELLAs drives the DELLA-SPT counterbalance, enforcing growth restraint across a range of ambient light conditions that are prevalent in nature.
Van den Daele, Hilde
- You have accessRestricted AccessThe Arabidopsis thaliana Checkpoint Kinase WEE1 Protects against Premature Vascular Differentiation during Replication StressToon Cools, Anelia Iantcheva, Annika K. Weimer, Shannah Boens, Naoki Takahashi, Sara Maes, Hilde Van den Daele, Gert Van Isterdael, Arp Schnittger, Lieven De VeylderPlant Cell Apr 2011, 23 (4) 1435-1448; DOI: https://doi.org/10.1105/tpc.110.082768
Because of their sessile lifestyle, plants need to react promptly to factors that affect meristem integrity. This work shows that the WEE1 checkpoint kinase maintains the root meristem activity under replication stress by controlling S-phase progression, thereby preventing premature onset of vascular cell differentiation.
Van Isterdael, Gert
- You have accessRestricted AccessThe Arabidopsis thaliana Checkpoint Kinase WEE1 Protects against Premature Vascular Differentiation during Replication StressToon Cools, Anelia Iantcheva, Annika K. Weimer, Shannah Boens, Naoki Takahashi, Sara Maes, Hilde Van den Daele, Gert Van Isterdael, Arp Schnittger, Lieven De VeylderPlant Cell Apr 2011, 23 (4) 1435-1448; DOI: https://doi.org/10.1105/tpc.110.082768
Because of their sessile lifestyle, plants need to react promptly to factors that affect meristem integrity. This work shows that the WEE1 checkpoint kinase maintains the root meristem activity under replication stress by controlling S-phase progression, thereby preventing premature onset of vascular cell differentiation.
Vaucheret, Herve
- Open AccessThe 21-Nucleotide, but Not 22-Nucleotide, Viral Secondary Small Interfering RNAs Direct Potent Antiviral Defense by Two Cooperative Argonautes in Arabidopsis thalianaXian-Bing Wang, Juan Jovel, Petchthai Udomporn, Ying Wang, Qingfa Wu, Wan-Xiang Li, Virginie Gasciolli, Herve Vaucheret, Shou-Wei DingPlant Cell Apr 2011, 23 (4) 1625-1638; DOI: https://doi.org/10.1105/tpc.110.082305
This work identifies cooperative action of ARGONAUTE1 and ARGONAUTE2 in virus resistance conferred by 21-nucleotide virus-derived small interfering RNAs (siRNAs). It also reveals that 22-nucleotide viral siRNAs do not guide efficient antiviral defense, demonstrating a qualitative difference between 21- and 22-nucleotide classes of siRNAs in RNA silencing.
Vaughan, Cara K.
- Open Accessβ-Amylase–Like Proteins Function as Transcription Factors in Arabidopsis, Controlling Shoot Growth and DevelopmentHeike Reinhold, Sebastian Soyk, Klára Šimková, Carmen Hostettler, John Marafino, Samantha Mainiero, Cara K. Vaughan, Jonathan D. Monroe, Samuel C. ZeemanPlant Cell Apr 2011, 23 (4) 1391-1403; DOI: https://doi.org/10.1105/tpc.110.081950
Two proteins similar to β-amylases (enzymes usually associated with starch breakdown) possess a BZR1-type DNA binding domain and are nuclear localized. They bind a G box-containing motif and regulate the expression of genes, many of which also respond to brassinosteroids, to influence shoot growth. Similar proteins occur in other plants, implying functional conservation.
Vialaret, Jérôme
- You have accessRestricted AccessArabidopsis thaliana High-Affinity Phosphate Transporters Exhibit Multiple Levels of Posttranslational RegulationVincent Bayle, Jean-François Arrighi, Audrey Creff, Claude Nespoulous, Jérôme Vialaret, Michel Rossignol, Esperanza Gonzalez, Javier Paz-Ares, Laurent NussaumePlant Cell Apr 2011, 23 (4) 1523-1535; DOI: https://doi.org/10.1105/tpc.110.081067
In Arabidopsis, the PHOSPHATE TRANSPORTER1 (PHT1) family encodes the high affinity phosphate transporters. This analysis revealed multiple steps of regulation in various cell compartments modulating the level of PHT1 proteins present in the plasma membrane in response to the level of inorganic phosphate.
Vieler, Astrid
- Open AccessSystems Biology Approach in Chlamydomonas Reveals Connections between Copper Nutrition and Multiple Metabolic StepsMadeli Castruita, David Casero, Steven J. Karpowicz, Janette Kropat, Astrid Vieler, Scott I. Hsieh, Weihong Yan, Shawn Cokus, Joseph A. Loo, Christoph Benning, Matteo Pellegrini, Sabeeha S. MerchantPlant Cell Apr 2011, 23 (4) 1273-1292; DOI: https://doi.org/10.1105/tpc.111.084400
RNA-seq assessment of the transcriptome of autotrophic and heterotrophic Chlamydomonas as a function of copper nutrition reveals changes in redox metabolism regulated by CRR1, an SBP domain transcription factor. The changes in RNA abundance impact the abundance of specific plastid-localized proteins and the level of saturation of plastid galactolipids.
Vincent, Coral
- Open AccessAa TFL1 Confers an Age-Dependent Response to Vernalization in Perennial Arabis alpinaRenhou Wang, Maria C. Albani, Coral Vincent, Sara Bergonzi, Ming Luan, Yan Bai, Christiane Kiefer, Rosa Castillo, George CouplandPlant Cell Apr 2011, 23 (4) 1307-1321; DOI: https://doi.org/10.1105/tpc.111.083451
Many plants must reach a certain age before they will flower in response to environmental cues. Perennial Arabis alpina plants are shown not to respond to vernalization until they are 5 weeks old. This effect is found to require the Aa TFL1 gene, which blocks induction of Aa LFY when young plants are exposed to cold.
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Wang, Jia-Wei
- Open AccessNegative Regulation of Anthocyanin Biosynthesis in Arabidopsis by a miR156-Targeted SPL Transcription FactorJin-Ying Gou, Felipe F. Felippes, Chang-Jun Liu, Detlef Weigel, Jia-Wei WangPlant Cell Apr 2011, 23 (4) 1512-1522; DOI: https://doi.org/10.1105/tpc.111.084525
This work reveals that anthocyanin biosynthesis is coupled to floral transition by miR156-targeted SQUAMOSA PROMOTER BINDING PROTEIN-LIKE (SPL) genes. SPL negatively regulates anthocyanin accumulation by directly preventing expression of anthocyanin biosynthetic genes through destabilization of a MYB-bHLH-WD40 transcriptional activation complex.