Table of Contents
A
Aharoni, Asaph
- You have accessRestricted AccessGLYCOALKALOID METABOLISM1 Is Required for Steroidal Alkaloid Glycosylation and Prevention of Phytotoxicity in TomatoMaxim Itkin, Ilana Rogachev, Noam Alkan, Tally Rosenberg, Sergey Malitsky, Laura Masini, Sagit Meir, Yoko Iijima, Koh Aoki, Ric de Vos, Dov Prusky, Saul Burdman, Jules Beekwilder, Asaph AharoniPlant Cell Dec 2011, 23 (12) 4507-4525; DOI: https://doi.org/10.1105/tpc.111.088732
Steroidal alkaloids (SAs) are specialized metabolites found in members of the Solanaceae family that provide plants with a chemical barrier against a broad range of pathogens. In this study, the role of GLYCOALKALOID METABOLISM1 (GAME1) in the biosynthesis of tomato SAs was revealed, highlighting the importance of GAME1 in SA glycosylation and in reducing the toxicity of SA metabolites to the plant cell.
Alkan, Noam
- You have accessRestricted AccessGLYCOALKALOID METABOLISM1 Is Required for Steroidal Alkaloid Glycosylation and Prevention of Phytotoxicity in TomatoMaxim Itkin, Ilana Rogachev, Noam Alkan, Tally Rosenberg, Sergey Malitsky, Laura Masini, Sagit Meir, Yoko Iijima, Koh Aoki, Ric de Vos, Dov Prusky, Saul Burdman, Jules Beekwilder, Asaph AharoniPlant Cell Dec 2011, 23 (12) 4507-4525; DOI: https://doi.org/10.1105/tpc.111.088732
Steroidal alkaloids (SAs) are specialized metabolites found in members of the Solanaceae family that provide plants with a chemical barrier against a broad range of pathogens. In this study, the role of GLYCOALKALOID METABOLISM1 (GAME1) in the biosynthesis of tomato SAs was revealed, highlighting the importance of GAME1 in SA glycosylation and in reducing the toxicity of SA metabolites to the plant cell.
Allain, Elisabeth
- You have accessRestricted AccessArabidopsis ATM and ATR Kinases Prevent Propagation of Genome Damage Caused by Telomere DysfunctionSimon Amiard, Annie Depeiges, Elisabeth Allain, Charles I. White, Maria Eugenia GallegoPlant Cell Dec 2011, 23 (12) 4254-4265; DOI: https://doi.org/10.1105/tpc.111.092387
This article shows that unprotected telomeres in plant cells are recognized as DNA breaks and elicit a DNA damage signal that is transduced by the ATM and ATR kinases, with differing specificities for eroded and for uncapped telomeres. It finds that both kinases contribute to genomic stability by inducing programmed cell death and elimination of genetically unstable cells.
Amiard, Simon
- You have accessRestricted AccessArabidopsis ATM and ATR Kinases Prevent Propagation of Genome Damage Caused by Telomere DysfunctionSimon Amiard, Annie Depeiges, Elisabeth Allain, Charles I. White, Maria Eugenia GallegoPlant Cell Dec 2011, 23 (12) 4254-4265; DOI: https://doi.org/10.1105/tpc.111.092387
This article shows that unprotected telomeres in plant cells are recognized as DNA breaks and elicit a DNA damage signal that is transduced by the ATM and ATR kinases, with differing specificities for eroded and for uncapped telomeres. It finds that both kinases contribute to genomic stability by inducing programmed cell death and elimination of genetically unstable cells.
Anstead, James A.
- You have accessRestricted AccessPhloem Ultrastructure and Pressure Flow: Sieve-Element-Occlusion-Related Agglomerations Do Not Affect TranslocationDaniel R. Froelich, Daniel L. Mullendore, Kåre H. Jensen, Tim J. Ross-Elliott, James A. Anstead, Gary A. Thompson, Hélène C. Pélissier, Michael KnoblauchPlant Cell Dec 2011, 23 (12) 4428-4445; DOI: https://doi.org/10.1105/tpc.111.093179
Several protocols and methods were developed to study the in vivo structure, ultrastructure, and physiology of sieve tubes. The ultrastructure of sieve tubes differs significantly from what has been shown so far. The impact on phloem function is discussed.
Aoki, Koh
- You have accessRestricted AccessGLYCOALKALOID METABOLISM1 Is Required for Steroidal Alkaloid Glycosylation and Prevention of Phytotoxicity in TomatoMaxim Itkin, Ilana Rogachev, Noam Alkan, Tally Rosenberg, Sergey Malitsky, Laura Masini, Sagit Meir, Yoko Iijima, Koh Aoki, Ric de Vos, Dov Prusky, Saul Burdman, Jules Beekwilder, Asaph AharoniPlant Cell Dec 2011, 23 (12) 4507-4525; DOI: https://doi.org/10.1105/tpc.111.088732
Steroidal alkaloids (SAs) are specialized metabolites found in members of the Solanaceae family that provide plants with a chemical barrier against a broad range of pathogens. In this study, the role of GLYCOALKALOID METABOLISM1 (GAME1) in the biosynthesis of tomato SAs was revealed, highlighting the importance of GAME1 in SA glycosylation and in reducing the toxicity of SA metabolites to the plant cell.
Aung, Kyaw
- You have accessRestricted AccessThe Arabidopsis Tail-Anchored Protein PEROXISOMAL AND MITOCHONDRIAL DIVISION FACTOR1 Is Involved in the Morphogenesis and Proliferation of Peroxisomes and MitochondriaKyaw Aung, Jianping HuPlant Cell Dec 2011, 23 (12) 4446-4461; DOI: https://doi.org/10.1105/tpc.111.090142
PMD1 was identified as a novel plant-specific coiled-coil protein that is tail anchored to the membrane of peroxisomes and mitochondria, capable of inducing the proliferation of both organelles. Its homolog, PMD2, exclusively targets to mitochondria and is involved in the morphogenesis of mitochondria.
Avivi-Ragolski, Naomi
- You have accessRestricted AccessIdentification of Plant RAD52 Homologs and Characterization of the Arabidopsis thaliana RAD52-Like GenesAviva Samach, Cathy Melamed-Bessudo, Naomi Avivi-Ragolski, Shmuel Pietrokovski, Avraham A. LevyPlant Cell Dec 2011, 23 (12) 4266-4279; DOI: https://doi.org/10.1105/tpc.111.091744
This article identifies plant homologs of the DNA repair protein RAD52. Typically, plants contain two conserved genes, which duplicated early in plant evolution, code for proteins targeted to the nucleus, chloroplast, and mitochondria, and are involved in DNA damage response, homologous recombination, and fertility.
B
Barakate, Abdellah
- You have accessRestricted AccessSyringyl Lignin Is Unaltered by Severe Sinapyl Alcohol Dehydrogenase Suppression in TobaccoAbdellah Barakate, Jennifer Stephens, Alison Goldie, William N. Hunter, David Marshall, Robert D. Hancock, Catherine Lapierre, Kris Morreel, Wout Boerjan, Claire HalpinPlant Cell Dec 2011, 23 (12) 4492-4506; DOI: https://doi.org/10.1105/tpc.111.089037
This study identifies cinnamyl alcohol dehydrogenase as the predominant enzyme that catalyzes the final step in S lignin biosynthesis in woody angiosperm xylem and challenges the widely held view that sinapyl alcohol dehydrogenase regulates S lignin biosynthesis in angiosperms.
Beekwilder, Jules
- You have accessRestricted AccessGLYCOALKALOID METABOLISM1 Is Required for Steroidal Alkaloid Glycosylation and Prevention of Phytotoxicity in TomatoMaxim Itkin, Ilana Rogachev, Noam Alkan, Tally Rosenberg, Sergey Malitsky, Laura Masini, Sagit Meir, Yoko Iijima, Koh Aoki, Ric de Vos, Dov Prusky, Saul Burdman, Jules Beekwilder, Asaph AharoniPlant Cell Dec 2011, 23 (12) 4507-4525; DOI: https://doi.org/10.1105/tpc.111.088732
Steroidal alkaloids (SAs) are specialized metabolites found in members of the Solanaceae family that provide plants with a chemical barrier against a broad range of pathogens. In this study, the role of GLYCOALKALOID METABOLISM1 (GAME1) in the biosynthesis of tomato SAs was revealed, highlighting the importance of GAME1 in SA glycosylation and in reducing the toxicity of SA metabolites to the plant cell.
Berckmans, Barbara
- You have accessRestricted AccessArabidopsis ULTRAVIOLET-B-INSENSITIVE4 Maintains Cell Division Activity by Temporal Inhibition of the Anaphase-Promoting Complex/CyclosomeJefri Heyman, Hilde Van den Daele, Kevin De Wit, Véronique Boudolf, Barbara Berckmans, Aurine Verkest, Claire Lessa Alvim Kamei, Geert De Jaeger, Csaba Koncz, Lieven De VeylderPlant Cell Dec 2011, 23 (12) 4394-4410; DOI: https://doi.org/10.1105/tpc.111.091793
This work identifies ULTRAVIOLET-B-INSENSITIVE4 as a plant-specific inhibitor of the Anaphase-Promoting Complex/Cyclosome E3-ubiquitine ligase. Its activity allows the temporal accumulation of mitotic cyclins during the DNA replication phase, thereby linking DNA replication with mitosis.
Berleth, Thomas
- Open AccessPOPCORN Functions in the Auxin Pathway to Regulate Embryonic Body Plan and Meristem Organization in ArabidopsisDaoquan Xiang, Hui Yang, Prakash Venglat, Yongguo Cao, Rui Wen, Maozhi Ren, Sandra Stone, Edwin Wang, Hong Wang, Wei Xiao, Dolf Weijers, Thomas Berleth, Thomas Laux, Gopalan Selvaraj, Raju DatlaPlant Cell Dec 2011, 23 (12) 4348-4367; DOI: https://doi.org/10.1105/tpc.111.091777
This study describes a WD-40 repeat–containing gene, POPCORN (PCN), required for embryo development in Arabidopsis thaliana. PCN functions in the auxin pathway and regulates establishment and maintenance of shoot and root meristems during embryonic and postembryonic development.
Boerjan, Wout
- You have accessRestricted AccessSyringyl Lignin Is Unaltered by Severe Sinapyl Alcohol Dehydrogenase Suppression in TobaccoAbdellah Barakate, Jennifer Stephens, Alison Goldie, William N. Hunter, David Marshall, Robert D. Hancock, Catherine Lapierre, Kris Morreel, Wout Boerjan, Claire HalpinPlant Cell Dec 2011, 23 (12) 4492-4506; DOI: https://doi.org/10.1105/tpc.111.089037
This study identifies cinnamyl alcohol dehydrogenase as the predominant enzyme that catalyzes the final step in S lignin biosynthesis in woody angiosperm xylem and challenges the widely held view that sinapyl alcohol dehydrogenase regulates S lignin biosynthesis in angiosperms.
Book, Adam J.
- You have accessRestricted AccessThe RPT2 Subunit of the 26S Proteasome Directs Complex Assembly, Histone Dynamics, and Gametophyte and Sporophyte Development in ArabidopsisKwang-Hee Lee, Atsushi Minami, Richard S. Marshall, Adam J. Book, Lisa M. Farmer, Joseph M. Walker, Richard D. VierstraPlant Cell Dec 2011, 23 (12) 4298-4317; DOI: https://doi.org/10.1105/tpc.111.089482
This study explores the function of two highly conserved isoforms of the Arabidopsis thaliana 26S proteasome subunit RPT2 that participate in proteasome-mediated protein turnover. The data point to a specific role for RPT2 in stem fasciation, male and female gametogenesis, and leaf, root, trichome, and pollen development, along with a common role for RP subunits in histone dynamics and nucleosome assembly.
Boudolf, Véronique
- You have accessRestricted AccessArabidopsis ULTRAVIOLET-B-INSENSITIVE4 Maintains Cell Division Activity by Temporal Inhibition of the Anaphase-Promoting Complex/CyclosomeJefri Heyman, Hilde Van den Daele, Kevin De Wit, Véronique Boudolf, Barbara Berckmans, Aurine Verkest, Claire Lessa Alvim Kamei, Geert De Jaeger, Csaba Koncz, Lieven De VeylderPlant Cell Dec 2011, 23 (12) 4394-4410; DOI: https://doi.org/10.1105/tpc.111.091793
This work identifies ULTRAVIOLET-B-INSENSITIVE4 as a plant-specific inhibitor of the Anaphase-Promoting Complex/Cyclosome E3-ubiquitine ligase. Its activity allows the temporal accumulation of mitotic cyclins during the DNA replication phase, thereby linking DNA replication with mitosis.
Bräutigam, Andrea
- Open AccessSystems Analysis of a Maize Leaf Developmental Gradient Redefines the Current C4 Model and Provides Candidates for RegulationThea R. Pick, Andrea Bräutigam, Urte Schlüter, Alisandra K. Denton, Christian Colmsee, Uwe Scholz, Holger Fahnenstich, Roland Pieruschka, Uwe Rascher, Uwe Sonnewald, Andreas P.M. WeberPlant Cell Dec 2011, 23 (12) 4208-4220; DOI: https://doi.org/10.1105/tpc.111.090324
This work reports on a comprehensive systems biology analysis of maize leaves, concluding that C4 photosynthesis is established from sink tissue without an intermediate phase of C3 or C2 photosynthesis.
Burdman, Saul
- You have accessRestricted AccessGLYCOALKALOID METABOLISM1 Is Required for Steroidal Alkaloid Glycosylation and Prevention of Phytotoxicity in TomatoMaxim Itkin, Ilana Rogachev, Noam Alkan, Tally Rosenberg, Sergey Malitsky, Laura Masini, Sagit Meir, Yoko Iijima, Koh Aoki, Ric de Vos, Dov Prusky, Saul Burdman, Jules Beekwilder, Asaph AharoniPlant Cell Dec 2011, 23 (12) 4507-4525; DOI: https://doi.org/10.1105/tpc.111.088732
Steroidal alkaloids (SAs) are specialized metabolites found in members of the Solanaceae family that provide plants with a chemical barrier against a broad range of pathogens. In this study, the role of GLYCOALKALOID METABOLISM1 (GAME1) in the biosynthesis of tomato SAs was revealed, highlighting the importance of GAME1 in SA glycosylation and in reducing the toxicity of SA metabolites to the plant cell.
C
Cao, Yongguo
- Open AccessPOPCORN Functions in the Auxin Pathway to Regulate Embryonic Body Plan and Meristem Organization in ArabidopsisDaoquan Xiang, Hui Yang, Prakash Venglat, Yongguo Cao, Rui Wen, Maozhi Ren, Sandra Stone, Edwin Wang, Hong Wang, Wei Xiao, Dolf Weijers, Thomas Berleth, Thomas Laux, Gopalan Selvaraj, Raju DatlaPlant Cell Dec 2011, 23 (12) 4348-4367; DOI: https://doi.org/10.1105/tpc.111.091777
This study describes a WD-40 repeat–containing gene, POPCORN (PCN), required for embryo development in Arabidopsis thaliana. PCN functions in the auxin pathway and regulates establishment and maintenance of shoot and root meristems during embryonic and postembryonic development.
Chopard, Jérôme
- You have accessRestricted AccessA Data-Driven Integrative Model of Sepal Primordium Polarity in ArabidopsisCamilo La Rota, Jérôme Chopard, Pradeep Das, Sandrine Paindavoine, Frédérique Rozier, Etienne Farcot, Christophe Godin, Jan Traas, Françoise MonégerPlant Cell Dec 2011, 23 (12) 4318-4333; DOI: https://doi.org/10.1105/tpc.111.092619
This study presents a new modeling approach allowing diverse types of data to be integrated in a coherent molecular regulatory network model. This was used to analyze sepal primordium development and revealed three previously unreported pathways potentially involved in polarity.
Cline, Sara
- You have accessRestricted AccessLumen Thiol Oxidoreductase1, a Disulfide Bond-Forming Catalyst, Is Required for the Assembly of Photosystem II in ArabidopsisMohamed Karamoko, Sara Cline, Kevin Redding, Natividad Ruiz, Patrice P. HamelPlant Cell Dec 2011, 23 (12) 4462-4475; DOI: https://doi.org/10.1105/tpc.111.089680
This study demonstrates that Arabidopsis thaliana Lumen Thiol Oxidoreductase1 (LTO1) catalyzes disulfide bond formation in the thylakoid lumen of the chloroplast. Loss of LTO1 function yields an assembly defect in photosystem II, a photosynthetic complex that requires a disulfide bond in a structural subunit localized in the lumen.
Colmsee, Christian
- Open AccessSystems Analysis of a Maize Leaf Developmental Gradient Redefines the Current C4 Model and Provides Candidates for RegulationThea R. Pick, Andrea Bräutigam, Urte Schlüter, Alisandra K. Denton, Christian Colmsee, Uwe Scholz, Holger Fahnenstich, Roland Pieruschka, Uwe Rascher, Uwe Sonnewald, Andreas P.M. WeberPlant Cell Dec 2011, 23 (12) 4208-4220; DOI: https://doi.org/10.1105/tpc.111.090324
This work reports on a comprehensive systems biology analysis of maize leaves, concluding that C4 photosynthesis is established from sink tissue without an intermediate phase of C3 or C2 photosynthesis.
Criqui, Marie-Claire
- You have accessRestricted AccessGIGAS CELL1, a Novel Negative Regulator of the Anaphase-Promoting Complex/Cyclosome, Is Required for Proper Mitotic Progression and Cell Fate Determination in ArabidopsisEriko Iwata, Saki Ikeda, Sachihiro Matsunaga, Mariko Kurata, Yasushi Yoshioka, Marie-Claire Criqui, Pascal Genschik, Masaki ItoPlant Cell Dec 2011, 23 (12) 4382-4393; DOI: https://doi.org/10.1105/tpc.111.092049
A novel plant-specific inhibitor of anaphase-promoting complex/cyclosome was identified from the gigas cell1 (gig1) mutation, which causes polyploidization of somatic cells due to ectopic endomitosis. This mutation also generated mixed-fate cells with both characters of guard cells and pavement cells, suggesting that GIG1 may have a role in cell fate determination, in addition to its role in proper mitotic progression.
Czarnecki, Olaf
- You have accessRestricted AccessAn Arabidopsis GluTR Binding Protein Mediates Spatial Separation of 5-Aminolevulinic Acid Synthesis in ChloroplastsOlaf Czarnecki, Boris Hedtke, Michael Melzer, Maxi Rothbart, Andreas Richter, Yvonne Schröter, Thomas Pfannschmidt, Bernhard GrimmPlant Cell Dec 2011, 23 (12) 4476-4491; DOI: https://doi.org/10.1105/tpc.111.086421
The identification and characterization of a glutamyl-tRNA reductase binding protein (GluTRBP) results in a new model for spatial separation of 5-aminolevulinic acid (ALA) formation. GluTRBP-bound GluTR is attached to the thylakoid membrane and synthesizes ALA that is likely directed into the heme-synthesizing pathway.
D
Das, Pradeep
- You have accessRestricted AccessA Data-Driven Integrative Model of Sepal Primordium Polarity in ArabidopsisCamilo La Rota, Jérôme Chopard, Pradeep Das, Sandrine Paindavoine, Frédérique Rozier, Etienne Farcot, Christophe Godin, Jan Traas, Françoise MonégerPlant Cell Dec 2011, 23 (12) 4318-4333; DOI: https://doi.org/10.1105/tpc.111.092619
This study presents a new modeling approach allowing diverse types of data to be integrated in a coherent molecular regulatory network model. This was used to analyze sepal primordium development and revealed three previously unreported pathways potentially involved in polarity.
Datla, Raju
- Open AccessPOPCORN Functions in the Auxin Pathway to Regulate Embryonic Body Plan and Meristem Organization in ArabidopsisDaoquan Xiang, Hui Yang, Prakash Venglat, Yongguo Cao, Rui Wen, Maozhi Ren, Sandra Stone, Edwin Wang, Hong Wang, Wei Xiao, Dolf Weijers, Thomas Berleth, Thomas Laux, Gopalan Selvaraj, Raju DatlaPlant Cell Dec 2011, 23 (12) 4348-4367; DOI: https://doi.org/10.1105/tpc.111.091777
This study describes a WD-40 repeat–containing gene, POPCORN (PCN), required for embryo development in Arabidopsis thaliana. PCN functions in the auxin pathway and regulates establishment and maintenance of shoot and root meristems during embryonic and postembryonic development.
De Jaeger, Geert
- You have accessRestricted AccessArabidopsis ULTRAVIOLET-B-INSENSITIVE4 Maintains Cell Division Activity by Temporal Inhibition of the Anaphase-Promoting Complex/CyclosomeJefri Heyman, Hilde Van den Daele, Kevin De Wit, Véronique Boudolf, Barbara Berckmans, Aurine Verkest, Claire Lessa Alvim Kamei, Geert De Jaeger, Csaba Koncz, Lieven De VeylderPlant Cell Dec 2011, 23 (12) 4394-4410; DOI: https://doi.org/10.1105/tpc.111.091793
This work identifies ULTRAVIOLET-B-INSENSITIVE4 as a plant-specific inhibitor of the Anaphase-Promoting Complex/Cyclosome E3-ubiquitine ligase. Its activity allows the temporal accumulation of mitotic cyclins during the DNA replication phase, thereby linking DNA replication with mitosis.
Denton, Alisandra K.
- Open AccessSystems Analysis of a Maize Leaf Developmental Gradient Redefines the Current C4 Model and Provides Candidates for RegulationThea R. Pick, Andrea Bräutigam, Urte Schlüter, Alisandra K. Denton, Christian Colmsee, Uwe Scholz, Holger Fahnenstich, Roland Pieruschka, Uwe Rascher, Uwe Sonnewald, Andreas P.M. WeberPlant Cell Dec 2011, 23 (12) 4208-4220; DOI: https://doi.org/10.1105/tpc.111.090324
This work reports on a comprehensive systems biology analysis of maize leaves, concluding that C4 photosynthesis is established from sink tissue without an intermediate phase of C3 or C2 photosynthesis.
De Paoli, Emanuele
- Open AccessMassive Analysis of Rice Small RNAs: Mechanistic Implications of Regulated MicroRNAs and Variants for Differential Target RNA CleavageDong-Hoon Jeong, Sunhee Park, Jixian Zhai, Sai Guna Ranjan Gurazada, Emanuele De Paoli, Blake C. Meyers, Pamela J. GreenPlant Cell Dec 2011, 23 (12) 4185-4207; DOI: https://doi.org/10.1105/tpc.111.089045
This massive analysis of rice small RNAs evaluated annotated microRNAs (miRNAs) and identified new miRNAs and miRNAs regulated by environmental stresses. Of particular interest are miRNA family members with distinct sequences and organ-preferential expression; some of these guide differential target cleavage and provide new insight about how an agriculturally significant phenotype may be regulated.
Depeiges, Annie
- You have accessRestricted AccessArabidopsis ATM and ATR Kinases Prevent Propagation of Genome Damage Caused by Telomere DysfunctionSimon Amiard, Annie Depeiges, Elisabeth Allain, Charles I. White, Maria Eugenia GallegoPlant Cell Dec 2011, 23 (12) 4254-4265; DOI: https://doi.org/10.1105/tpc.111.092387
This article shows that unprotected telomeres in plant cells are recognized as DNA breaks and elicit a DNA damage signal that is transduced by the ATM and ATR kinases, with differing specificities for eroded and for uncapped telomeres. It finds that both kinases contribute to genomic stability by inducing programmed cell death and elimination of genetically unstable cells.
De Veylder, Lieven
- You have accessRestricted AccessArabidopsis ULTRAVIOLET-B-INSENSITIVE4 Maintains Cell Division Activity by Temporal Inhibition of the Anaphase-Promoting Complex/CyclosomeJefri Heyman, Hilde Van den Daele, Kevin De Wit, Véronique Boudolf, Barbara Berckmans, Aurine Verkest, Claire Lessa Alvim Kamei, Geert De Jaeger, Csaba Koncz, Lieven De VeylderPlant Cell Dec 2011, 23 (12) 4394-4410; DOI: https://doi.org/10.1105/tpc.111.091793
This work identifies ULTRAVIOLET-B-INSENSITIVE4 as a plant-specific inhibitor of the Anaphase-Promoting Complex/Cyclosome E3-ubiquitine ligase. Its activity allows the temporal accumulation of mitotic cyclins during the DNA replication phase, thereby linking DNA replication with mitosis.
de Vos, Ric
- You have accessRestricted AccessGLYCOALKALOID METABOLISM1 Is Required for Steroidal Alkaloid Glycosylation and Prevention of Phytotoxicity in TomatoMaxim Itkin, Ilana Rogachev, Noam Alkan, Tally Rosenberg, Sergey Malitsky, Laura Masini, Sagit Meir, Yoko Iijima, Koh Aoki, Ric de Vos, Dov Prusky, Saul Burdman, Jules Beekwilder, Asaph AharoniPlant Cell Dec 2011, 23 (12) 4507-4525; DOI: https://doi.org/10.1105/tpc.111.088732
Steroidal alkaloids (SAs) are specialized metabolites found in members of the Solanaceae family that provide plants with a chemical barrier against a broad range of pathogens. In this study, the role of GLYCOALKALOID METABOLISM1 (GAME1) in the biosynthesis of tomato SAs was revealed, highlighting the importance of GAME1 in SA glycosylation and in reducing the toxicity of SA metabolites to the plant cell.
De Wit, Kevin
- You have accessRestricted AccessArabidopsis ULTRAVIOLET-B-INSENSITIVE4 Maintains Cell Division Activity by Temporal Inhibition of the Anaphase-Promoting Complex/CyclosomeJefri Heyman, Hilde Van den Daele, Kevin De Wit, Véronique Boudolf, Barbara Berckmans, Aurine Verkest, Claire Lessa Alvim Kamei, Geert De Jaeger, Csaba Koncz, Lieven De VeylderPlant Cell Dec 2011, 23 (12) 4394-4410; DOI: https://doi.org/10.1105/tpc.111.091793
This work identifies ULTRAVIOLET-B-INSENSITIVE4 as a plant-specific inhibitor of the Anaphase-Promoting Complex/Cyclosome E3-ubiquitine ligase. Its activity allows the temporal accumulation of mitotic cyclins during the DNA replication phase, thereby linking DNA replication with mitosis.
E
Eckardt, Nancy A.
- You have accessRestricted AccessPostcards from the Rice Genome: Massive Analysis of Small RNAs in Response to Environmental StressNancy A. EckardtPlant Cell Dec 2011, 23 (12) 4165; DOI: https://doi.org/10.1105/tpc.111.231211
Ehrhardt, David W.
- Open AccessThe RootChip: An Integrated Microfluidic Chip for Plant ScienceGuido Grossmann, Woei-Jiun Guo, David W. Ehrhardt, Wolf B. Frommer, Rene V. Sit, Stephen R. Quake, Matthias MeierPlant Cell Dec 2011, 23 (12) 4234-4240; DOI: https://doi.org/10.1105/tpc.111.092577
Eichten, Steve R.
- You have accessRestricted AccessParent-of-Origin Effects on Gene Expression and DNA Methylation in the Maize EndospermAmanda J. Waters, Irina Makarevitch, Steve R. Eichten, Ruth A. Swanson-Wagner, Cheng-Ting Yeh, Wayne Xu, Patrick S. Schnable, Matthew W. Vaughn, Mary Gehring, Nathan M. SpringerPlant Cell Dec 2011, 23 (12) 4221-4233; DOI: https://doi.org/10.1105/tpc.111.092668
This work uses deep sequencing of RNAs from maize endosperm and embryo to identify 54 maternally expressed genes and 46 paternally expressed genes and then examines genome-wide DNA methylation and gene expression, finding hypomethylation of the maternal allele and endosperm-specific expression for many of the imprinted genes.
F
Fahnenstich, Holger
- Open AccessSystems Analysis of a Maize Leaf Developmental Gradient Redefines the Current C4 Model and Provides Candidates for RegulationThea R. Pick, Andrea Bräutigam, Urte Schlüter, Alisandra K. Denton, Christian Colmsee, Uwe Scholz, Holger Fahnenstich, Roland Pieruschka, Uwe Rascher, Uwe Sonnewald, Andreas P.M. WeberPlant Cell Dec 2011, 23 (12) 4208-4220; DOI: https://doi.org/10.1105/tpc.111.090324
This work reports on a comprehensive systems biology analysis of maize leaves, concluding that C4 photosynthesis is established from sink tissue without an intermediate phase of C3 or C2 photosynthesis.
Fajardo, Diego S.
- Open AccessMaize Rough Endosperm3 Encodes an RNA Splicing Factor Required for Endosperm Cell Differentiation and Has a Nonautonomous Effect on Embryo DevelopmentRomain Fouquet, Federico Martin, Diego S. Fajardo, Christine M. Gault, Elisa Gómez, Chi-Wah Tseung, Tyler Policht, Gregorio Hueros, A. Mark SettlesPlant Cell Dec 2011, 23 (12) 4280-4297; DOI: https://doi.org/10.1105/tpc.111.092163
We used maize translocations to identify rough endosperm3 (rgh3) as a locus required in the endosperm to promote embryo development. The rgh3 mutant impairs or delays endosperm cell differentiation and encodes a hypomorphic allele of URP, a core RNA splicing factor. A subset of alternatively spliced transcripts shows differences in splicing patterns in wild-type and rgh3 tissues.
Farcot, Etienne
- You have accessRestricted AccessA Data-Driven Integrative Model of Sepal Primordium Polarity in ArabidopsisCamilo La Rota, Jérôme Chopard, Pradeep Das, Sandrine Paindavoine, Frédérique Rozier, Etienne Farcot, Christophe Godin, Jan Traas, Françoise MonégerPlant Cell Dec 2011, 23 (12) 4318-4333; DOI: https://doi.org/10.1105/tpc.111.092619
This study presents a new modeling approach allowing diverse types of data to be integrated in a coherent molecular regulatory network model. This was used to analyze sepal primordium development and revealed three previously unreported pathways potentially involved in polarity.
Farmer, Lisa M.
- You have accessRestricted AccessThe RPT2 Subunit of the 26S Proteasome Directs Complex Assembly, Histone Dynamics, and Gametophyte and Sporophyte Development in ArabidopsisKwang-Hee Lee, Atsushi Minami, Richard S. Marshall, Adam J. Book, Lisa M. Farmer, Joseph M. Walker, Richard D. VierstraPlant Cell Dec 2011, 23 (12) 4298-4317; DOI: https://doi.org/10.1105/tpc.111.089482
This study explores the function of two highly conserved isoforms of the Arabidopsis thaliana 26S proteasome subunit RPT2 that participate in proteasome-mediated protein turnover. The data point to a specific role for RPT2 in stem fasciation, male and female gametogenesis, and leaf, root, trichome, and pollen development, along with a common role for RP subunits in histone dynamics and nucleosome assembly.
Fouquet, Romain
- Open AccessMaize Rough Endosperm3 Encodes an RNA Splicing Factor Required for Endosperm Cell Differentiation and Has a Nonautonomous Effect on Embryo DevelopmentRomain Fouquet, Federico Martin, Diego S. Fajardo, Christine M. Gault, Elisa Gómez, Chi-Wah Tseung, Tyler Policht, Gregorio Hueros, A. Mark SettlesPlant Cell Dec 2011, 23 (12) 4280-4297; DOI: https://doi.org/10.1105/tpc.111.092163
We used maize translocations to identify rough endosperm3 (rgh3) as a locus required in the endosperm to promote embryo development. The rgh3 mutant impairs or delays endosperm cell differentiation and encodes a hypomorphic allele of URP, a core RNA splicing factor. A subset of alternatively spliced transcripts shows differences in splicing patterns in wild-type and rgh3 tissues.
Freeling, Michael
- You have accessRestricted AccessDifferent Gene Families in Arabidopsis thaliana Transposed in Different Epochs and at Different Frequencies throughout the RosidsMargaret R. Woodhouse, Haibao Tang, Michael FreelingPlant Cell Dec 2011, 23 (12) 4241-4253; DOI: https://doi.org/10.1105/tpc.111.093567
This work examines the chromosomal positional history of all genes in Arabidopsis thaliana through evolutionary time in the rosid superorder, finding that mobile gene families are under different selection pressure than syntenic gene families.
Froelich, Daniel R.
- You have accessRestricted AccessPhloem Ultrastructure and Pressure Flow: Sieve-Element-Occlusion-Related Agglomerations Do Not Affect TranslocationDaniel R. Froelich, Daniel L. Mullendore, Kåre H. Jensen, Tim J. Ross-Elliott, James A. Anstead, Gary A. Thompson, Hélène C. Pélissier, Michael KnoblauchPlant Cell Dec 2011, 23 (12) 4428-4445; DOI: https://doi.org/10.1105/tpc.111.093179
Several protocols and methods were developed to study the in vivo structure, ultrastructure, and physiology of sieve tubes. The ultrastructure of sieve tubes differs significantly from what has been shown so far. The impact on phloem function is discussed.
Frommer, Wolf B.
- Open AccessThe RootChip: An Integrated Microfluidic Chip for Plant ScienceGuido Grossmann, Woei-Jiun Guo, David W. Ehrhardt, Wolf B. Frommer, Rene V. Sit, Stephen R. Quake, Matthias MeierPlant Cell Dec 2011, 23 (12) 4234-4240; DOI: https://doi.org/10.1105/tpc.111.092577
G
Gallego, Maria Eugenia
- You have accessRestricted AccessArabidopsis ATM and ATR Kinases Prevent Propagation of Genome Damage Caused by Telomere DysfunctionSimon Amiard, Annie Depeiges, Elisabeth Allain, Charles I. White, Maria Eugenia GallegoPlant Cell Dec 2011, 23 (12) 4254-4265; DOI: https://doi.org/10.1105/tpc.111.092387
This article shows that unprotected telomeres in plant cells are recognized as DNA breaks and elicit a DNA damage signal that is transduced by the ATM and ATR kinases, with differing specificities for eroded and for uncapped telomeres. It finds that both kinases contribute to genomic stability by inducing programmed cell death and elimination of genetically unstable cells.
Gault, Christine M.
- Open AccessMaize Rough Endosperm3 Encodes an RNA Splicing Factor Required for Endosperm Cell Differentiation and Has a Nonautonomous Effect on Embryo DevelopmentRomain Fouquet, Federico Martin, Diego S. Fajardo, Christine M. Gault, Elisa Gómez, Chi-Wah Tseung, Tyler Policht, Gregorio Hueros, A. Mark SettlesPlant Cell Dec 2011, 23 (12) 4280-4297; DOI: https://doi.org/10.1105/tpc.111.092163
We used maize translocations to identify rough endosperm3 (rgh3) as a locus required in the endosperm to promote embryo development. The rgh3 mutant impairs or delays endosperm cell differentiation and encodes a hypomorphic allele of URP, a core RNA splicing factor. A subset of alternatively spliced transcripts shows differences in splicing patterns in wild-type and rgh3 tissues.
Gehring, Mary
- You have accessRestricted AccessParent-of-Origin Effects on Gene Expression and DNA Methylation in the Maize EndospermAmanda J. Waters, Irina Makarevitch, Steve R. Eichten, Ruth A. Swanson-Wagner, Cheng-Ting Yeh, Wayne Xu, Patrick S. Schnable, Matthew W. Vaughn, Mary Gehring, Nathan M. SpringerPlant Cell Dec 2011, 23 (12) 4221-4233; DOI: https://doi.org/10.1105/tpc.111.092668
This work uses deep sequencing of RNAs from maize endosperm and embryo to identify 54 maternally expressed genes and 46 paternally expressed genes and then examines genome-wide DNA methylation and gene expression, finding hypomethylation of the maternal allele and endosperm-specific expression for many of the imprinted genes.
Genschik, Pascal
- You have accessRestricted AccessGIGAS CELL1, a Novel Negative Regulator of the Anaphase-Promoting Complex/Cyclosome, Is Required for Proper Mitotic Progression and Cell Fate Determination in ArabidopsisEriko Iwata, Saki Ikeda, Sachihiro Matsunaga, Mariko Kurata, Yasushi Yoshioka, Marie-Claire Criqui, Pascal Genschik, Masaki ItoPlant Cell Dec 2011, 23 (12) 4382-4393; DOI: https://doi.org/10.1105/tpc.111.092049
A novel plant-specific inhibitor of anaphase-promoting complex/cyclosome was identified from the gigas cell1 (gig1) mutation, which causes polyploidization of somatic cells due to ectopic endomitosis. This mutation also generated mixed-fate cells with both characters of guard cells and pavement cells, suggesting that GIG1 may have a role in cell fate determination, in addition to its role in proper mitotic progression.
Godin, Christophe
- You have accessRestricted AccessA Data-Driven Integrative Model of Sepal Primordium Polarity in ArabidopsisCamilo La Rota, Jérôme Chopard, Pradeep Das, Sandrine Paindavoine, Frédérique Rozier, Etienne Farcot, Christophe Godin, Jan Traas, Françoise MonégerPlant Cell Dec 2011, 23 (12) 4318-4333; DOI: https://doi.org/10.1105/tpc.111.092619
This study presents a new modeling approach allowing diverse types of data to be integrated in a coherent molecular regulatory network model. This was used to analyze sepal primordium development and revealed three previously unreported pathways potentially involved in polarity.
Goldie, Alison
- You have accessRestricted AccessSyringyl Lignin Is Unaltered by Severe Sinapyl Alcohol Dehydrogenase Suppression in TobaccoAbdellah Barakate, Jennifer Stephens, Alison Goldie, William N. Hunter, David Marshall, Robert D. Hancock, Catherine Lapierre, Kris Morreel, Wout Boerjan, Claire HalpinPlant Cell Dec 2011, 23 (12) 4492-4506; DOI: https://doi.org/10.1105/tpc.111.089037
This study identifies cinnamyl alcohol dehydrogenase as the predominant enzyme that catalyzes the final step in S lignin biosynthesis in woody angiosperm xylem and challenges the widely held view that sinapyl alcohol dehydrogenase regulates S lignin biosynthesis in angiosperms.
Gómez, Elisa
- Open AccessMaize Rough Endosperm3 Encodes an RNA Splicing Factor Required for Endosperm Cell Differentiation and Has a Nonautonomous Effect on Embryo DevelopmentRomain Fouquet, Federico Martin, Diego S. Fajardo, Christine M. Gault, Elisa Gómez, Chi-Wah Tseung, Tyler Policht, Gregorio Hueros, A. Mark SettlesPlant Cell Dec 2011, 23 (12) 4280-4297; DOI: https://doi.org/10.1105/tpc.111.092163
We used maize translocations to identify rough endosperm3 (rgh3) as a locus required in the endosperm to promote embryo development. The rgh3 mutant impairs or delays endosperm cell differentiation and encodes a hypomorphic allele of URP, a core RNA splicing factor. A subset of alternatively spliced transcripts shows differences in splicing patterns in wild-type and rgh3 tissues.
Green, Pamela J.
- Open AccessMassive Analysis of Rice Small RNAs: Mechanistic Implications of Regulated MicroRNAs and Variants for Differential Target RNA CleavageDong-Hoon Jeong, Sunhee Park, Jixian Zhai, Sai Guna Ranjan Gurazada, Emanuele De Paoli, Blake C. Meyers, Pamela J. GreenPlant Cell Dec 2011, 23 (12) 4185-4207; DOI: https://doi.org/10.1105/tpc.111.089045
This massive analysis of rice small RNAs evaluated annotated microRNAs (miRNAs) and identified new miRNAs and miRNAs regulated by environmental stresses. Of particular interest are miRNA family members with distinct sequences and organ-preferential expression; some of these guide differential target cleavage and provide new insight about how an agriculturally significant phenotype may be regulated.
Grimm, Bernhard
- You have accessRestricted AccessAn Arabidopsis GluTR Binding Protein Mediates Spatial Separation of 5-Aminolevulinic Acid Synthesis in ChloroplastsOlaf Czarnecki, Boris Hedtke, Michael Melzer, Maxi Rothbart, Andreas Richter, Yvonne Schröter, Thomas Pfannschmidt, Bernhard GrimmPlant Cell Dec 2011, 23 (12) 4476-4491; DOI: https://doi.org/10.1105/tpc.111.086421
The identification and characterization of a glutamyl-tRNA reductase binding protein (GluTRBP) results in a new model for spatial separation of 5-aminolevulinic acid (ALA) formation. GluTRBP-bound GluTR is attached to the thylakoid membrane and synthesizes ALA that is likely directed into the heme-synthesizing pathway.
Grossmann, Guido
- Open AccessThe RootChip: An Integrated Microfluidic Chip for Plant ScienceGuido Grossmann, Woei-Jiun Guo, David W. Ehrhardt, Wolf B. Frommer, Rene V. Sit, Stephen R. Quake, Matthias MeierPlant Cell Dec 2011, 23 (12) 4234-4240; DOI: https://doi.org/10.1105/tpc.111.092577
Guo, Woei-Jiun
- Open AccessThe RootChip: An Integrated Microfluidic Chip for Plant ScienceGuido Grossmann, Woei-Jiun Guo, David W. Ehrhardt, Wolf B. Frommer, Rene V. Sit, Stephen R. Quake, Matthias MeierPlant Cell Dec 2011, 23 (12) 4234-4240; DOI: https://doi.org/10.1105/tpc.111.092577
Gurazada, Sai Guna Ranjan
- Open AccessMassive Analysis of Rice Small RNAs: Mechanistic Implications of Regulated MicroRNAs and Variants for Differential Target RNA CleavageDong-Hoon Jeong, Sunhee Park, Jixian Zhai, Sai Guna Ranjan Gurazada, Emanuele De Paoli, Blake C. Meyers, Pamela J. GreenPlant Cell Dec 2011, 23 (12) 4185-4207; DOI: https://doi.org/10.1105/tpc.111.089045
This massive analysis of rice small RNAs evaluated annotated microRNAs (miRNAs) and identified new miRNAs and miRNAs regulated by environmental stresses. Of particular interest are miRNA family members with distinct sequences and organ-preferential expression; some of these guide differential target cleavage and provide new insight about how an agriculturally significant phenotype may be regulated.
H
Halpin, Claire
- You have accessRestricted AccessSyringyl Lignin Is Unaltered by Severe Sinapyl Alcohol Dehydrogenase Suppression in TobaccoAbdellah Barakate, Jennifer Stephens, Alison Goldie, William N. Hunter, David Marshall, Robert D. Hancock, Catherine Lapierre, Kris Morreel, Wout Boerjan, Claire HalpinPlant Cell Dec 2011, 23 (12) 4492-4506; DOI: https://doi.org/10.1105/tpc.111.089037
This study identifies cinnamyl alcohol dehydrogenase as the predominant enzyme that catalyzes the final step in S lignin biosynthesis in woody angiosperm xylem and challenges the widely held view that sinapyl alcohol dehydrogenase regulates S lignin biosynthesis in angiosperms.
Hamel, Patrice P.
- You have accessRestricted AccessLumen Thiol Oxidoreductase1, a Disulfide Bond-Forming Catalyst, Is Required for the Assembly of Photosystem II in ArabidopsisMohamed Karamoko, Sara Cline, Kevin Redding, Natividad Ruiz, Patrice P. HamelPlant Cell Dec 2011, 23 (12) 4462-4475; DOI: https://doi.org/10.1105/tpc.111.089680
This study demonstrates that Arabidopsis thaliana Lumen Thiol Oxidoreductase1 (LTO1) catalyzes disulfide bond formation in the thylakoid lumen of the chloroplast. Loss of LTO1 function yields an assembly defect in photosystem II, a photosynthetic complex that requires a disulfide bond in a structural subunit localized in the lumen.
Hancock, Robert D.
- You have accessRestricted AccessSyringyl Lignin Is Unaltered by Severe Sinapyl Alcohol Dehydrogenase Suppression in TobaccoAbdellah Barakate, Jennifer Stephens, Alison Goldie, William N. Hunter, David Marshall, Robert D. Hancock, Catherine Lapierre, Kris Morreel, Wout Boerjan, Claire HalpinPlant Cell Dec 2011, 23 (12) 4492-4506; DOI: https://doi.org/10.1105/tpc.111.089037
This study identifies cinnamyl alcohol dehydrogenase as the predominant enzyme that catalyzes the final step in S lignin biosynthesis in woody angiosperm xylem and challenges the widely held view that sinapyl alcohol dehydrogenase regulates S lignin biosynthesis in angiosperms.
Hedtke, Boris
- You have accessRestricted AccessAn Arabidopsis GluTR Binding Protein Mediates Spatial Separation of 5-Aminolevulinic Acid Synthesis in ChloroplastsOlaf Czarnecki, Boris Hedtke, Michael Melzer, Maxi Rothbart, Andreas Richter, Yvonne Schröter, Thomas Pfannschmidt, Bernhard GrimmPlant Cell Dec 2011, 23 (12) 4476-4491; DOI: https://doi.org/10.1105/tpc.111.086421
The identification and characterization of a glutamyl-tRNA reductase binding protein (GluTRBP) results in a new model for spatial separation of 5-aminolevulinic acid (ALA) formation. GluTRBP-bound GluTR is attached to the thylakoid membrane and synthesizes ALA that is likely directed into the heme-synthesizing pathway.
Heyman, Jefri
- You have accessRestricted AccessArabidopsis ULTRAVIOLET-B-INSENSITIVE4 Maintains Cell Division Activity by Temporal Inhibition of the Anaphase-Promoting Complex/CyclosomeJefri Heyman, Hilde Van den Daele, Kevin De Wit, Véronique Boudolf, Barbara Berckmans, Aurine Verkest, Claire Lessa Alvim Kamei, Geert De Jaeger, Csaba Koncz, Lieven De VeylderPlant Cell Dec 2011, 23 (12) 4394-4410; DOI: https://doi.org/10.1105/tpc.111.091793
This work identifies ULTRAVIOLET-B-INSENSITIVE4 as a plant-specific inhibitor of the Anaphase-Promoting Complex/Cyclosome E3-ubiquitine ligase. Its activity allows the temporal accumulation of mitotic cyclins during the DNA replication phase, thereby linking DNA replication with mitosis.
Hofmann, Nancy R.
- You have accessRestricted AccessA Case for Spatial Regulation in Tetrapyrrole BiosynthesisNancy R. HofmannPlant Cell Dec 2011, 23 (12) 4167; DOI: https://doi.org/10.1105/tpc.111.231212
Hu, Jianping
- You have accessRestricted AccessThe Arabidopsis Tail-Anchored Protein PEROXISOMAL AND MITOCHONDRIAL DIVISION FACTOR1 Is Involved in the Morphogenesis and Proliferation of Peroxisomes and MitochondriaKyaw Aung, Jianping HuPlant Cell Dec 2011, 23 (12) 4446-4461; DOI: https://doi.org/10.1105/tpc.111.090142
PMD1 was identified as a novel plant-specific coiled-coil protein that is tail anchored to the membrane of peroxisomes and mitochondria, capable of inducing the proliferation of both organelles. Its homolog, PMD2, exclusively targets to mitochondria and is involved in the morphogenesis of mitochondria.
Hueros, Gregorio
- Open AccessMaize Rough Endosperm3 Encodes an RNA Splicing Factor Required for Endosperm Cell Differentiation and Has a Nonautonomous Effect on Embryo DevelopmentRomain Fouquet, Federico Martin, Diego S. Fajardo, Christine M. Gault, Elisa Gómez, Chi-Wah Tseung, Tyler Policht, Gregorio Hueros, A. Mark SettlesPlant Cell Dec 2011, 23 (12) 4280-4297; DOI: https://doi.org/10.1105/tpc.111.092163
We used maize translocations to identify rough endosperm3 (rgh3) as a locus required in the endosperm to promote embryo development. The rgh3 mutant impairs or delays endosperm cell differentiation and encodes a hypomorphic allele of URP, a core RNA splicing factor. A subset of alternatively spliced transcripts shows differences in splicing patterns in wild-type and rgh3 tissues.
Hunter, William N.
- You have accessRestricted AccessSyringyl Lignin Is Unaltered by Severe Sinapyl Alcohol Dehydrogenase Suppression in TobaccoAbdellah Barakate, Jennifer Stephens, Alison Goldie, William N. Hunter, David Marshall, Robert D. Hancock, Catherine Lapierre, Kris Morreel, Wout Boerjan, Claire HalpinPlant Cell Dec 2011, 23 (12) 4492-4506; DOI: https://doi.org/10.1105/tpc.111.089037
This study identifies cinnamyl alcohol dehydrogenase as the predominant enzyme that catalyzes the final step in S lignin biosynthesis in woody angiosperm xylem and challenges the widely held view that sinapyl alcohol dehydrogenase regulates S lignin biosynthesis in angiosperms.
I
Iijima, Yoko
- You have accessRestricted AccessGLYCOALKALOID METABOLISM1 Is Required for Steroidal Alkaloid Glycosylation and Prevention of Phytotoxicity in TomatoMaxim Itkin, Ilana Rogachev, Noam Alkan, Tally Rosenberg, Sergey Malitsky, Laura Masini, Sagit Meir, Yoko Iijima, Koh Aoki, Ric de Vos, Dov Prusky, Saul Burdman, Jules Beekwilder, Asaph AharoniPlant Cell Dec 2011, 23 (12) 4507-4525; DOI: https://doi.org/10.1105/tpc.111.088732
Steroidal alkaloids (SAs) are specialized metabolites found in members of the Solanaceae family that provide plants with a chemical barrier against a broad range of pathogens. In this study, the role of GLYCOALKALOID METABOLISM1 (GAME1) in the biosynthesis of tomato SAs was revealed, highlighting the importance of GAME1 in SA glycosylation and in reducing the toxicity of SA metabolites to the plant cell.
Ikeda, Saki
- You have accessRestricted AccessGIGAS CELL1, a Novel Negative Regulator of the Anaphase-Promoting Complex/Cyclosome, Is Required for Proper Mitotic Progression and Cell Fate Determination in ArabidopsisEriko Iwata, Saki Ikeda, Sachihiro Matsunaga, Mariko Kurata, Yasushi Yoshioka, Marie-Claire Criqui, Pascal Genschik, Masaki ItoPlant Cell Dec 2011, 23 (12) 4382-4393; DOI: https://doi.org/10.1105/tpc.111.092049
A novel plant-specific inhibitor of anaphase-promoting complex/cyclosome was identified from the gigas cell1 (gig1) mutation, which causes polyploidization of somatic cells due to ectopic endomitosis. This mutation also generated mixed-fate cells with both characters of guard cells and pavement cells, suggesting that GIG1 may have a role in cell fate determination, in addition to its role in proper mitotic progression.
Itkin, Maxim
- You have accessRestricted AccessGLYCOALKALOID METABOLISM1 Is Required for Steroidal Alkaloid Glycosylation and Prevention of Phytotoxicity in TomatoMaxim Itkin, Ilana Rogachev, Noam Alkan, Tally Rosenberg, Sergey Malitsky, Laura Masini, Sagit Meir, Yoko Iijima, Koh Aoki, Ric de Vos, Dov Prusky, Saul Burdman, Jules Beekwilder, Asaph AharoniPlant Cell Dec 2011, 23 (12) 4507-4525; DOI: https://doi.org/10.1105/tpc.111.088732
Steroidal alkaloids (SAs) are specialized metabolites found in members of the Solanaceae family that provide plants with a chemical barrier against a broad range of pathogens. In this study, the role of GLYCOALKALOID METABOLISM1 (GAME1) in the biosynthesis of tomato SAs was revealed, highlighting the importance of GAME1 in SA glycosylation and in reducing the toxicity of SA metabolites to the plant cell.
Ito, Masaki
- You have accessRestricted AccessGIGAS CELL1, a Novel Negative Regulator of the Anaphase-Promoting Complex/Cyclosome, Is Required for Proper Mitotic Progression and Cell Fate Determination in ArabidopsisEriko Iwata, Saki Ikeda, Sachihiro Matsunaga, Mariko Kurata, Yasushi Yoshioka, Marie-Claire Criqui, Pascal Genschik, Masaki ItoPlant Cell Dec 2011, 23 (12) 4382-4393; DOI: https://doi.org/10.1105/tpc.111.092049
A novel plant-specific inhibitor of anaphase-promoting complex/cyclosome was identified from the gigas cell1 (gig1) mutation, which causes polyploidization of somatic cells due to ectopic endomitosis. This mutation also generated mixed-fate cells with both characters of guard cells and pavement cells, suggesting that GIG1 may have a role in cell fate determination, in addition to its role in proper mitotic progression.
Ito, Yukihiro
- Open AccessPositive Autoregulation of a KNOX Gene Is Essential for Shoot Apical Meristem Maintenance in RiceKatsutoshi Tsuda, Yukihiro Ito, Yutaka Sato, Nori KurataPlant Cell Dec 2011, 23 (12) 4368-4381; DOI: https://doi.org/10.1105/tpc.111.090050
This work reveals that rice KNOX genes OSH1 and OSH15 are required for shoot apical meristem (SAM) formation and maintenance and that KNOX gene expression is positively and directly regulated by OSH1 through evolutionarily conserved cis-elements. This is thought to be a novel mechanism that is indispensable for self-maintenance of the SAM.
Iwata, Eriko
- You have accessRestricted AccessGIGAS CELL1, a Novel Negative Regulator of the Anaphase-Promoting Complex/Cyclosome, Is Required for Proper Mitotic Progression and Cell Fate Determination in ArabidopsisEriko Iwata, Saki Ikeda, Sachihiro Matsunaga, Mariko Kurata, Yasushi Yoshioka, Marie-Claire Criqui, Pascal Genschik, Masaki ItoPlant Cell Dec 2011, 23 (12) 4382-4393; DOI: https://doi.org/10.1105/tpc.111.092049
A novel plant-specific inhibitor of anaphase-promoting complex/cyclosome was identified from the gigas cell1 (gig1) mutation, which causes polyploidization of somatic cells due to ectopic endomitosis. This mutation also generated mixed-fate cells with both characters of guard cells and pavement cells, suggesting that GIG1 may have a role in cell fate determination, in addition to its role in proper mitotic progression.
J
Jensen, KÃ¥re H.
- You have accessRestricted AccessPhloem Ultrastructure and Pressure Flow: Sieve-Element-Occlusion-Related Agglomerations Do Not Affect TranslocationDaniel R. Froelich, Daniel L. Mullendore, Kåre H. Jensen, Tim J. Ross-Elliott, James A. Anstead, Gary A. Thompson, Hélène C. Pélissier, Michael KnoblauchPlant Cell Dec 2011, 23 (12) 4428-4445; DOI: https://doi.org/10.1105/tpc.111.093179
Several protocols and methods were developed to study the in vivo structure, ultrastructure, and physiology of sieve tubes. The ultrastructure of sieve tubes differs significantly from what has been shown so far. The impact on phloem function is discussed.
Jeong, Dong-Hoon
- Open AccessMassive Analysis of Rice Small RNAs: Mechanistic Implications of Regulated MicroRNAs and Variants for Differential Target RNA CleavageDong-Hoon Jeong, Sunhee Park, Jixian Zhai, Sai Guna Ranjan Gurazada, Emanuele De Paoli, Blake C. Meyers, Pamela J. GreenPlant Cell Dec 2011, 23 (12) 4185-4207; DOI: https://doi.org/10.1105/tpc.111.089045
This massive analysis of rice small RNAs evaluated annotated microRNAs (miRNAs) and identified new miRNAs and miRNAs regulated by environmental stresses. Of particular interest are miRNA family members with distinct sequences and organ-preferential expression; some of these guide differential target cleavage and provide new insight about how an agriculturally significant phenotype may be regulated.
K
Kamei, Claire Lessa Alvim
- You have accessRestricted AccessArabidopsis ULTRAVIOLET-B-INSENSITIVE4 Maintains Cell Division Activity by Temporal Inhibition of the Anaphase-Promoting Complex/CyclosomeJefri Heyman, Hilde Van den Daele, Kevin De Wit, Véronique Boudolf, Barbara Berckmans, Aurine Verkest, Claire Lessa Alvim Kamei, Geert De Jaeger, Csaba Koncz, Lieven De VeylderPlant Cell Dec 2011, 23 (12) 4394-4410; DOI: https://doi.org/10.1105/tpc.111.091793
This work identifies ULTRAVIOLET-B-INSENSITIVE4 as a plant-specific inhibitor of the Anaphase-Promoting Complex/Cyclosome E3-ubiquitine ligase. Its activity allows the temporal accumulation of mitotic cyclins during the DNA replication phase, thereby linking DNA replication with mitosis.
Karamoko, Mohamed
- You have accessRestricted AccessLumen Thiol Oxidoreductase1, a Disulfide Bond-Forming Catalyst, Is Required for the Assembly of Photosystem II in ArabidopsisMohamed Karamoko, Sara Cline, Kevin Redding, Natividad Ruiz, Patrice P. HamelPlant Cell Dec 2011, 23 (12) 4462-4475; DOI: https://doi.org/10.1105/tpc.111.089680
This study demonstrates that Arabidopsis thaliana Lumen Thiol Oxidoreductase1 (LTO1) catalyzes disulfide bond formation in the thylakoid lumen of the chloroplast. Loss of LTO1 function yields an assembly defect in photosystem II, a photosynthetic complex that requires a disulfide bond in a structural subunit localized in the lumen.
Knoblauch, Michael
- You have accessRestricted AccessPhloem Ultrastructure and Pressure Flow: Sieve-Element-Occlusion-Related Agglomerations Do Not Affect TranslocationDaniel R. Froelich, Daniel L. Mullendore, Kåre H. Jensen, Tim J. Ross-Elliott, James A. Anstead, Gary A. Thompson, Hélène C. Pélissier, Michael KnoblauchPlant Cell Dec 2011, 23 (12) 4428-4445; DOI: https://doi.org/10.1105/tpc.111.093179
Several protocols and methods were developed to study the in vivo structure, ultrastructure, and physiology of sieve tubes. The ultrastructure of sieve tubes differs significantly from what has been shown so far. The impact on phloem function is discussed.
Koncz, Csaba
- You have accessRestricted AccessArabidopsis ULTRAVIOLET-B-INSENSITIVE4 Maintains Cell Division Activity by Temporal Inhibition of the Anaphase-Promoting Complex/CyclosomeJefri Heyman, Hilde Van den Daele, Kevin De Wit, Véronique Boudolf, Barbara Berckmans, Aurine Verkest, Claire Lessa Alvim Kamei, Geert De Jaeger, Csaba Koncz, Lieven De VeylderPlant Cell Dec 2011, 23 (12) 4394-4410; DOI: https://doi.org/10.1105/tpc.111.091793
This work identifies ULTRAVIOLET-B-INSENSITIVE4 as a plant-specific inhibitor of the Anaphase-Promoting Complex/Cyclosome E3-ubiquitine ligase. Its activity allows the temporal accumulation of mitotic cyclins during the DNA replication phase, thereby linking DNA replication with mitosis.
Kurata, Mariko
- You have accessRestricted AccessGIGAS CELL1, a Novel Negative Regulator of the Anaphase-Promoting Complex/Cyclosome, Is Required for Proper Mitotic Progression and Cell Fate Determination in ArabidopsisEriko Iwata, Saki Ikeda, Sachihiro Matsunaga, Mariko Kurata, Yasushi Yoshioka, Marie-Claire Criqui, Pascal Genschik, Masaki ItoPlant Cell Dec 2011, 23 (12) 4382-4393; DOI: https://doi.org/10.1105/tpc.111.092049
A novel plant-specific inhibitor of anaphase-promoting complex/cyclosome was identified from the gigas cell1 (gig1) mutation, which causes polyploidization of somatic cells due to ectopic endomitosis. This mutation also generated mixed-fate cells with both characters of guard cells and pavement cells, suggesting that GIG1 may have a role in cell fate determination, in addition to its role in proper mitotic progression.
Kurata, Nori
- Open AccessPositive Autoregulation of a KNOX Gene Is Essential for Shoot Apical Meristem Maintenance in RiceKatsutoshi Tsuda, Yukihiro Ito, Yutaka Sato, Nori KurataPlant Cell Dec 2011, 23 (12) 4368-4381; DOI: https://doi.org/10.1105/tpc.111.090050
This work reveals that rice KNOX genes OSH1 and OSH15 are required for shoot apical meristem (SAM) formation and maintenance and that KNOX gene expression is positively and directly regulated by OSH1 through evolutionarily conserved cis-elements. This is thought to be a novel mechanism that is indispensable for self-maintenance of the SAM.
L
Lapierre, Catherine
- You have accessRestricted AccessSyringyl Lignin Is Unaltered by Severe Sinapyl Alcohol Dehydrogenase Suppression in TobaccoAbdellah Barakate, Jennifer Stephens, Alison Goldie, William N. Hunter, David Marshall, Robert D. Hancock, Catherine Lapierre, Kris Morreel, Wout Boerjan, Claire HalpinPlant Cell Dec 2011, 23 (12) 4492-4506; DOI: https://doi.org/10.1105/tpc.111.089037
This study identifies cinnamyl alcohol dehydrogenase as the predominant enzyme that catalyzes the final step in S lignin biosynthesis in woody angiosperm xylem and challenges the widely held view that sinapyl alcohol dehydrogenase regulates S lignin biosynthesis in angiosperms.
La Rota, Camilo
- You have accessRestricted AccessA Data-Driven Integrative Model of Sepal Primordium Polarity in ArabidopsisCamilo La Rota, Jérôme Chopard, Pradeep Das, Sandrine Paindavoine, Frédérique Rozier, Etienne Farcot, Christophe Godin, Jan Traas, Françoise MonégerPlant Cell Dec 2011, 23 (12) 4318-4333; DOI: https://doi.org/10.1105/tpc.111.092619
This study presents a new modeling approach allowing diverse types of data to be integrated in a coherent molecular regulatory network model. This was used to analyze sepal primordium development and revealed three previously unreported pathways potentially involved in polarity.
Laux, Thomas
- Open AccessPOPCORN Functions in the Auxin Pathway to Regulate Embryonic Body Plan and Meristem Organization in ArabidopsisDaoquan Xiang, Hui Yang, Prakash Venglat, Yongguo Cao, Rui Wen, Maozhi Ren, Sandra Stone, Edwin Wang, Hong Wang, Wei Xiao, Dolf Weijers, Thomas Berleth, Thomas Laux, Gopalan Selvaraj, Raju DatlaPlant Cell Dec 2011, 23 (12) 4348-4367; DOI: https://doi.org/10.1105/tpc.111.091777
This study describes a WD-40 repeat–containing gene, POPCORN (PCN), required for embryo development in Arabidopsis thaliana. PCN functions in the auxin pathway and regulates establishment and maintenance of shoot and root meristems during embryonic and postembryonic development.
Lee, Kwang-Hee
- You have accessRestricted AccessThe RPT2 Subunit of the 26S Proteasome Directs Complex Assembly, Histone Dynamics, and Gametophyte and Sporophyte Development in ArabidopsisKwang-Hee Lee, Atsushi Minami, Richard S. Marshall, Adam J. Book, Lisa M. Farmer, Joseph M. Walker, Richard D. VierstraPlant Cell Dec 2011, 23 (12) 4298-4317; DOI: https://doi.org/10.1105/tpc.111.089482
This study explores the function of two highly conserved isoforms of the Arabidopsis thaliana 26S proteasome subunit RPT2 that participate in proteasome-mediated protein turnover. The data point to a specific role for RPT2 in stem fasciation, male and female gametogenesis, and leaf, root, trichome, and pollen development, along with a common role for RP subunits in histone dynamics and nucleosome assembly.
Levy, Avraham A.
- You have accessRestricted AccessIdentification of Plant RAD52 Homologs and Characterization of the Arabidopsis thaliana RAD52-Like GenesAviva Samach, Cathy Melamed-Bessudo, Naomi Avivi-Ragolski, Shmuel Pietrokovski, Avraham A. LevyPlant Cell Dec 2011, 23 (12) 4266-4279; DOI: https://doi.org/10.1105/tpc.111.091744
This article identifies plant homologs of the DNA repair protein RAD52. Typically, plants contain two conserved genes, which duplicated early in plant evolution, code for proteins targeted to the nucleus, chloroplast, and mitochondria, and are involved in DNA damage response, homologous recombination, and fertility.
Li, Jiejie
- Open AccessMDP25, A Novel Calcium Regulatory Protein, Mediates Hypocotyl Cell Elongation by Destabilizing Cortical Microtubules in ArabidopsisJiejie Li, Xianling Wang, Tao Qin, Yan Zhang, Xiaomin Liu, Jingbo Sun, Yuan Zhou, Lei Zhu, Ziding Zhang, Ming Yuan, Tonglin MaoPlant Cell Dec 2011, 23 (12) 4411-4427; DOI: https://doi.org/10.1105/tpc.111.092684
This study reveals that the Arabidopsis thaliana microtubule-destabilizing protein MDP25 regulates hypocotyl elongation. The microtubule-destabilizing activity of MDP25 is regulated by calcium, which causes MDP25 to disassociate from the plasma membrane and move into the cytosol. We identified a novel microtubule mechanism that regulates hypocotyl cell elongation in Arabidopsis.
Liu, Xiaomin
- Open AccessMDP25, A Novel Calcium Regulatory Protein, Mediates Hypocotyl Cell Elongation by Destabilizing Cortical Microtubules in ArabidopsisJiejie Li, Xianling Wang, Tao Qin, Yan Zhang, Xiaomin Liu, Jingbo Sun, Yuan Zhou, Lei Zhu, Ziding Zhang, Ming Yuan, Tonglin MaoPlant Cell Dec 2011, 23 (12) 4411-4427; DOI: https://doi.org/10.1105/tpc.111.092684
This study reveals that the Arabidopsis thaliana microtubule-destabilizing protein MDP25 regulates hypocotyl elongation. The microtubule-destabilizing activity of MDP25 is regulated by calcium, which causes MDP25 to disassociate from the plasma membrane and move into the cytosol. We identified a novel microtubule mechanism that regulates hypocotyl cell elongation in Arabidopsis.
M
Mach, Jennifer
- You have accessRestricted AccessLarge-Scale RNA Sequencing to Identify Maize Genes with Parent-of-Origin Expression EffectsJennifer MachPlant Cell Dec 2011, 23 (12) 4166; DOI: https://doi.org/10.1105/tpc.111.231210
Makarevitch, Irina
- You have accessRestricted AccessParent-of-Origin Effects on Gene Expression and DNA Methylation in the Maize EndospermAmanda J. Waters, Irina Makarevitch, Steve R. Eichten, Ruth A. Swanson-Wagner, Cheng-Ting Yeh, Wayne Xu, Patrick S. Schnable, Matthew W. Vaughn, Mary Gehring, Nathan M. SpringerPlant Cell Dec 2011, 23 (12) 4221-4233; DOI: https://doi.org/10.1105/tpc.111.092668
This work uses deep sequencing of RNAs from maize endosperm and embryo to identify 54 maternally expressed genes and 46 paternally expressed genes and then examines genome-wide DNA methylation and gene expression, finding hypomethylation of the maternal allele and endosperm-specific expression for many of the imprinted genes.
Malitsky, Sergey
- You have accessRestricted AccessGLYCOALKALOID METABOLISM1 Is Required for Steroidal Alkaloid Glycosylation and Prevention of Phytotoxicity in TomatoMaxim Itkin, Ilana Rogachev, Noam Alkan, Tally Rosenberg, Sergey Malitsky, Laura Masini, Sagit Meir, Yoko Iijima, Koh Aoki, Ric de Vos, Dov Prusky, Saul Burdman, Jules Beekwilder, Asaph AharoniPlant Cell Dec 2011, 23 (12) 4507-4525; DOI: https://doi.org/10.1105/tpc.111.088732
Steroidal alkaloids (SAs) are specialized metabolites found in members of the Solanaceae family that provide plants with a chemical barrier against a broad range of pathogens. In this study, the role of GLYCOALKALOID METABOLISM1 (GAME1) in the biosynthesis of tomato SAs was revealed, highlighting the importance of GAME1 in SA glycosylation and in reducing the toxicity of SA metabolites to the plant cell.
Mao, Tonglin
- Open AccessMDP25, A Novel Calcium Regulatory Protein, Mediates Hypocotyl Cell Elongation by Destabilizing Cortical Microtubules in ArabidopsisJiejie Li, Xianling Wang, Tao Qin, Yan Zhang, Xiaomin Liu, Jingbo Sun, Yuan Zhou, Lei Zhu, Ziding Zhang, Ming Yuan, Tonglin MaoPlant Cell Dec 2011, 23 (12) 4411-4427; DOI: https://doi.org/10.1105/tpc.111.092684
This study reveals that the Arabidopsis thaliana microtubule-destabilizing protein MDP25 regulates hypocotyl elongation. The microtubule-destabilizing activity of MDP25 is regulated by calcium, which causes MDP25 to disassociate from the plasma membrane and move into the cytosol. We identified a novel microtubule mechanism that regulates hypocotyl cell elongation in Arabidopsis.
Marshall, David
- You have accessRestricted AccessSyringyl Lignin Is Unaltered by Severe Sinapyl Alcohol Dehydrogenase Suppression in TobaccoAbdellah Barakate, Jennifer Stephens, Alison Goldie, William N. Hunter, David Marshall, Robert D. Hancock, Catherine Lapierre, Kris Morreel, Wout Boerjan, Claire HalpinPlant Cell Dec 2011, 23 (12) 4492-4506; DOI: https://doi.org/10.1105/tpc.111.089037
This study identifies cinnamyl alcohol dehydrogenase as the predominant enzyme that catalyzes the final step in S lignin biosynthesis in woody angiosperm xylem and challenges the widely held view that sinapyl alcohol dehydrogenase regulates S lignin biosynthesis in angiosperms.
Marshall, Richard S.
- You have accessRestricted AccessThe RPT2 Subunit of the 26S Proteasome Directs Complex Assembly, Histone Dynamics, and Gametophyte and Sporophyte Development in ArabidopsisKwang-Hee Lee, Atsushi Minami, Richard S. Marshall, Adam J. Book, Lisa M. Farmer, Joseph M. Walker, Richard D. VierstraPlant Cell Dec 2011, 23 (12) 4298-4317; DOI: https://doi.org/10.1105/tpc.111.089482
This study explores the function of two highly conserved isoforms of the Arabidopsis thaliana 26S proteasome subunit RPT2 that participate in proteasome-mediated protein turnover. The data point to a specific role for RPT2 in stem fasciation, male and female gametogenesis, and leaf, root, trichome, and pollen development, along with a common role for RP subunits in histone dynamics and nucleosome assembly.
Martin, Federico
- Open AccessMaize Rough Endosperm3 Encodes an RNA Splicing Factor Required for Endosperm Cell Differentiation and Has a Nonautonomous Effect on Embryo DevelopmentRomain Fouquet, Federico Martin, Diego S. Fajardo, Christine M. Gault, Elisa Gómez, Chi-Wah Tseung, Tyler Policht, Gregorio Hueros, A. Mark SettlesPlant Cell Dec 2011, 23 (12) 4280-4297; DOI: https://doi.org/10.1105/tpc.111.092163
We used maize translocations to identify rough endosperm3 (rgh3) as a locus required in the endosperm to promote embryo development. The rgh3 mutant impairs or delays endosperm cell differentiation and encodes a hypomorphic allele of URP, a core RNA splicing factor. A subset of alternatively spliced transcripts shows differences in splicing patterns in wild-type and rgh3 tissues.
Masini, Laura
- You have accessRestricted AccessGLYCOALKALOID METABOLISM1 Is Required for Steroidal Alkaloid Glycosylation and Prevention of Phytotoxicity in TomatoMaxim Itkin, Ilana Rogachev, Noam Alkan, Tally Rosenberg, Sergey Malitsky, Laura Masini, Sagit Meir, Yoko Iijima, Koh Aoki, Ric de Vos, Dov Prusky, Saul Burdman, Jules Beekwilder, Asaph AharoniPlant Cell Dec 2011, 23 (12) 4507-4525; DOI: https://doi.org/10.1105/tpc.111.088732
Steroidal alkaloids (SAs) are specialized metabolites found in members of the Solanaceae family that provide plants with a chemical barrier against a broad range of pathogens. In this study, the role of GLYCOALKALOID METABOLISM1 (GAME1) in the biosynthesis of tomato SAs was revealed, highlighting the importance of GAME1 in SA glycosylation and in reducing the toxicity of SA metabolites to the plant cell.
Matsunaga, Sachihiro
- You have accessRestricted AccessGIGAS CELL1, a Novel Negative Regulator of the Anaphase-Promoting Complex/Cyclosome, Is Required for Proper Mitotic Progression and Cell Fate Determination in ArabidopsisEriko Iwata, Saki Ikeda, Sachihiro Matsunaga, Mariko Kurata, Yasushi Yoshioka, Marie-Claire Criqui, Pascal Genschik, Masaki ItoPlant Cell Dec 2011, 23 (12) 4382-4393; DOI: https://doi.org/10.1105/tpc.111.092049
A novel plant-specific inhibitor of anaphase-promoting complex/cyclosome was identified from the gigas cell1 (gig1) mutation, which causes polyploidization of somatic cells due to ectopic endomitosis. This mutation also generated mixed-fate cells with both characters of guard cells and pavement cells, suggesting that GIG1 may have a role in cell fate determination, in addition to its role in proper mitotic progression.
Meier, Matthias
- Open AccessThe RootChip: An Integrated Microfluidic Chip for Plant ScienceGuido Grossmann, Woei-Jiun Guo, David W. Ehrhardt, Wolf B. Frommer, Rene V. Sit, Stephen R. Quake, Matthias MeierPlant Cell Dec 2011, 23 (12) 4234-4240; DOI: https://doi.org/10.1105/tpc.111.092577
Meir, Sagit
- You have accessRestricted AccessGLYCOALKALOID METABOLISM1 Is Required for Steroidal Alkaloid Glycosylation and Prevention of Phytotoxicity in TomatoMaxim Itkin, Ilana Rogachev, Noam Alkan, Tally Rosenberg, Sergey Malitsky, Laura Masini, Sagit Meir, Yoko Iijima, Koh Aoki, Ric de Vos, Dov Prusky, Saul Burdman, Jules Beekwilder, Asaph AharoniPlant Cell Dec 2011, 23 (12) 4507-4525; DOI: https://doi.org/10.1105/tpc.111.088732
Steroidal alkaloids (SAs) are specialized metabolites found in members of the Solanaceae family that provide plants with a chemical barrier against a broad range of pathogens. In this study, the role of GLYCOALKALOID METABOLISM1 (GAME1) in the biosynthesis of tomato SAs was revealed, highlighting the importance of GAME1 in SA glycosylation and in reducing the toxicity of SA metabolites to the plant cell.
Melamed-Bessudo, Cathy
- You have accessRestricted AccessIdentification of Plant RAD52 Homologs and Characterization of the Arabidopsis thaliana RAD52-Like GenesAviva Samach, Cathy Melamed-Bessudo, Naomi Avivi-Ragolski, Shmuel Pietrokovski, Avraham A. LevyPlant Cell Dec 2011, 23 (12) 4266-4279; DOI: https://doi.org/10.1105/tpc.111.091744
This article identifies plant homologs of the DNA repair protein RAD52. Typically, plants contain two conserved genes, which duplicated early in plant evolution, code for proteins targeted to the nucleus, chloroplast, and mitochondria, and are involved in DNA damage response, homologous recombination, and fertility.
Melzer, Michael
- You have accessRestricted AccessAn Arabidopsis GluTR Binding Protein Mediates Spatial Separation of 5-Aminolevulinic Acid Synthesis in ChloroplastsOlaf Czarnecki, Boris Hedtke, Michael Melzer, Maxi Rothbart, Andreas Richter, Yvonne Schröter, Thomas Pfannschmidt, Bernhard GrimmPlant Cell Dec 2011, 23 (12) 4476-4491; DOI: https://doi.org/10.1105/tpc.111.086421
The identification and characterization of a glutamyl-tRNA reductase binding protein (GluTRBP) results in a new model for spatial separation of 5-aminolevulinic acid (ALA) formation. GluTRBP-bound GluTR is attached to the thylakoid membrane and synthesizes ALA that is likely directed into the heme-synthesizing pathway.
Meyers, Blake C.
- Open AccessMassive Analysis of Rice Small RNAs: Mechanistic Implications of Regulated MicroRNAs and Variants for Differential Target RNA CleavageDong-Hoon Jeong, Sunhee Park, Jixian Zhai, Sai Guna Ranjan Gurazada, Emanuele De Paoli, Blake C. Meyers, Pamela J. GreenPlant Cell Dec 2011, 23 (12) 4185-4207; DOI: https://doi.org/10.1105/tpc.111.089045
This massive analysis of rice small RNAs evaluated annotated microRNAs (miRNAs) and identified new miRNAs and miRNAs regulated by environmental stresses. Of particular interest are miRNA family members with distinct sequences and organ-preferential expression; some of these guide differential target cleavage and provide new insight about how an agriculturally significant phenotype may be regulated.
Minami, Atsushi
- You have accessRestricted AccessThe RPT2 Subunit of the 26S Proteasome Directs Complex Assembly, Histone Dynamics, and Gametophyte and Sporophyte Development in ArabidopsisKwang-Hee Lee, Atsushi Minami, Richard S. Marshall, Adam J. Book, Lisa M. Farmer, Joseph M. Walker, Richard D. VierstraPlant Cell Dec 2011, 23 (12) 4298-4317; DOI: https://doi.org/10.1105/tpc.111.089482
This study explores the function of two highly conserved isoforms of the Arabidopsis thaliana 26S proteasome subunit RPT2 that participate in proteasome-mediated protein turnover. The data point to a specific role for RPT2 in stem fasciation, male and female gametogenesis, and leaf, root, trichome, and pollen development, along with a common role for RP subunits in histone dynamics and nucleosome assembly.
Monéger, Françoise
- You have accessRestricted AccessA Data-Driven Integrative Model of Sepal Primordium Polarity in ArabidopsisCamilo La Rota, Jérôme Chopard, Pradeep Das, Sandrine Paindavoine, Frédérique Rozier, Etienne Farcot, Christophe Godin, Jan Traas, Françoise MonégerPlant Cell Dec 2011, 23 (12) 4318-4333; DOI: https://doi.org/10.1105/tpc.111.092619
This study presents a new modeling approach allowing diverse types of data to be integrated in a coherent molecular regulatory network model. This was used to analyze sepal primordium development and revealed three previously unreported pathways potentially involved in polarity.
Morreel, Kris
- You have accessRestricted AccessSyringyl Lignin Is Unaltered by Severe Sinapyl Alcohol Dehydrogenase Suppression in TobaccoAbdellah Barakate, Jennifer Stephens, Alison Goldie, William N. Hunter, David Marshall, Robert D. Hancock, Catherine Lapierre, Kris Morreel, Wout Boerjan, Claire HalpinPlant Cell Dec 2011, 23 (12) 4492-4506; DOI: https://doi.org/10.1105/tpc.111.089037
This study identifies cinnamyl alcohol dehydrogenase as the predominant enzyme that catalyzes the final step in S lignin biosynthesis in woody angiosperm xylem and challenges the widely held view that sinapyl alcohol dehydrogenase regulates S lignin biosynthesis in angiosperms.
Mullendore, Daniel L.
- You have accessRestricted AccessPhloem Ultrastructure and Pressure Flow: Sieve-Element-Occlusion-Related Agglomerations Do Not Affect TranslocationDaniel R. Froelich, Daniel L. Mullendore, Kåre H. Jensen, Tim J. Ross-Elliott, James A. Anstead, Gary A. Thompson, Hélène C. Pélissier, Michael KnoblauchPlant Cell Dec 2011, 23 (12) 4428-4445; DOI: https://doi.org/10.1105/tpc.111.093179
Several protocols and methods were developed to study the in vivo structure, ultrastructure, and physiology of sieve tubes. The ultrastructure of sieve tubes differs significantly from what has been shown so far. The impact on phloem function is discussed.
Mustroph, Angelika
- You have accessRestricted AccessPlant Oxygen Sensing Is Mediated by the N-End Rule Pathway: A Milestone in Plant AnaerobiosisRashmi Sasidharan, Angelika MustrophPlant Cell Dec 2011, 23 (12) 4173-4183; DOI: https://doi.org/10.1105/tpc.111.093880
N
Ning, Jing
- You have accessRestricted AccessIncreased Leaf Angle1, a Raf-Like MAPKKK That Interacts with a Nuclear Protein Family, Regulates Mechanical Tissue Formation in the Lamina Joint of RiceJing Ning, Baocai Zhang, Nili Wang, Yihua Zhou, Lizhong XiongPlant Cell Dec 2011, 23 (12) 4334-4347; DOI: https://doi.org/10.1105/tpc.111.093419
This work characterizes ILA1, a kinase protein that regulates leaf angle through affecting mechanical properties at the leaf collar. It finds that ILA1 interacts with a previously undiscovered family of proteins whose function is unknown and mediates a different pathway than other reported kinases.
O
Otegui, Marisa S.
- You have accessRestricted AccessReply: Internal Membranes in Maize Aleurone Protein Storage Vacuoles: Beyond AutophagyFrancisca C. Reyes, Marisa S. Otegui, Richard VierstraPlant Cell Dec 2011, 23 (12) 4171-4172; DOI: https://doi.org/10.1105/tpc.111.231240
P
Paindavoine, Sandrine
- You have accessRestricted AccessA Data-Driven Integrative Model of Sepal Primordium Polarity in ArabidopsisCamilo La Rota, Jérôme Chopard, Pradeep Das, Sandrine Paindavoine, Frédérique Rozier, Etienne Farcot, Christophe Godin, Jan Traas, Françoise MonégerPlant Cell Dec 2011, 23 (12) 4318-4333; DOI: https://doi.org/10.1105/tpc.111.092619
This study presents a new modeling approach allowing diverse types of data to be integrated in a coherent molecular regulatory network model. This was used to analyze sepal primordium development and revealed three previously unreported pathways potentially involved in polarity.
Park, Sunhee
- Open AccessMassive Analysis of Rice Small RNAs: Mechanistic Implications of Regulated MicroRNAs and Variants for Differential Target RNA CleavageDong-Hoon Jeong, Sunhee Park, Jixian Zhai, Sai Guna Ranjan Gurazada, Emanuele De Paoli, Blake C. Meyers, Pamela J. GreenPlant Cell Dec 2011, 23 (12) 4185-4207; DOI: https://doi.org/10.1105/tpc.111.089045
This massive analysis of rice small RNAs evaluated annotated microRNAs (miRNAs) and identified new miRNAs and miRNAs regulated by environmental stresses. Of particular interest are miRNA family members with distinct sequences and organ-preferential expression; some of these guide differential target cleavage and provide new insight about how an agriculturally significant phenotype may be regulated.
Pélissier, Hélène C.
- You have accessRestricted AccessPhloem Ultrastructure and Pressure Flow: Sieve-Element-Occlusion-Related Agglomerations Do Not Affect TranslocationDaniel R. Froelich, Daniel L. Mullendore, Kåre H. Jensen, Tim J. Ross-Elliott, James A. Anstead, Gary A. Thompson, Hélène C. Pélissier, Michael KnoblauchPlant Cell Dec 2011, 23 (12) 4428-4445; DOI: https://doi.org/10.1105/tpc.111.093179
Several protocols and methods were developed to study the in vivo structure, ultrastructure, and physiology of sieve tubes. The ultrastructure of sieve tubes differs significantly from what has been shown so far. The impact on phloem function is discussed.
Pfannschmidt, Thomas
- You have accessRestricted AccessAn Arabidopsis GluTR Binding Protein Mediates Spatial Separation of 5-Aminolevulinic Acid Synthesis in ChloroplastsOlaf Czarnecki, Boris Hedtke, Michael Melzer, Maxi Rothbart, Andreas Richter, Yvonne Schröter, Thomas Pfannschmidt, Bernhard GrimmPlant Cell Dec 2011, 23 (12) 4476-4491; DOI: https://doi.org/10.1105/tpc.111.086421
The identification and characterization of a glutamyl-tRNA reductase binding protein (GluTRBP) results in a new model for spatial separation of 5-aminolevulinic acid (ALA) formation. GluTRBP-bound GluTR is attached to the thylakoid membrane and synthesizes ALA that is likely directed into the heme-synthesizing pathway.
Pick, Thea R.
- Open AccessSystems Analysis of a Maize Leaf Developmental Gradient Redefines the Current C4 Model and Provides Candidates for RegulationThea R. Pick, Andrea Bräutigam, Urte Schlüter, Alisandra K. Denton, Christian Colmsee, Uwe Scholz, Holger Fahnenstich, Roland Pieruschka, Uwe Rascher, Uwe Sonnewald, Andreas P.M. WeberPlant Cell Dec 2011, 23 (12) 4208-4220; DOI: https://doi.org/10.1105/tpc.111.090324
This work reports on a comprehensive systems biology analysis of maize leaves, concluding that C4 photosynthesis is established from sink tissue without an intermediate phase of C3 or C2 photosynthesis.
Pieruschka, Roland
- Open AccessSystems Analysis of a Maize Leaf Developmental Gradient Redefines the Current C4 Model and Provides Candidates for RegulationThea R. Pick, Andrea Bräutigam, Urte Schlüter, Alisandra K. Denton, Christian Colmsee, Uwe Scholz, Holger Fahnenstich, Roland Pieruschka, Uwe Rascher, Uwe Sonnewald, Andreas P.M. WeberPlant Cell Dec 2011, 23 (12) 4208-4220; DOI: https://doi.org/10.1105/tpc.111.090324
This work reports on a comprehensive systems biology analysis of maize leaves, concluding that C4 photosynthesis is established from sink tissue without an intermediate phase of C3 or C2 photosynthesis.
Pietrokovski, Shmuel
- You have accessRestricted AccessIdentification of Plant RAD52 Homologs and Characterization of the Arabidopsis thaliana RAD52-Like GenesAviva Samach, Cathy Melamed-Bessudo, Naomi Avivi-Ragolski, Shmuel Pietrokovski, Avraham A. LevyPlant Cell Dec 2011, 23 (12) 4266-4279; DOI: https://doi.org/10.1105/tpc.111.091744
This article identifies plant homologs of the DNA repair protein RAD52. Typically, plants contain two conserved genes, which duplicated early in plant evolution, code for proteins targeted to the nucleus, chloroplast, and mitochondria, and are involved in DNA damage response, homologous recombination, and fertility.
Policht, Tyler
- Open AccessMaize Rough Endosperm3 Encodes an RNA Splicing Factor Required for Endosperm Cell Differentiation and Has a Nonautonomous Effect on Embryo DevelopmentRomain Fouquet, Federico Martin, Diego S. Fajardo, Christine M. Gault, Elisa Gómez, Chi-Wah Tseung, Tyler Policht, Gregorio Hueros, A. Mark SettlesPlant Cell Dec 2011, 23 (12) 4280-4297; DOI: https://doi.org/10.1105/tpc.111.092163
We used maize translocations to identify rough endosperm3 (rgh3) as a locus required in the endosperm to promote embryo development. The rgh3 mutant impairs or delays endosperm cell differentiation and encodes a hypomorphic allele of URP, a core RNA splicing factor. A subset of alternatively spliced transcripts shows differences in splicing patterns in wild-type and rgh3 tissues.
Prusky, Dov
- You have accessRestricted AccessGLYCOALKALOID METABOLISM1 Is Required for Steroidal Alkaloid Glycosylation and Prevention of Phytotoxicity in TomatoMaxim Itkin, Ilana Rogachev, Noam Alkan, Tally Rosenberg, Sergey Malitsky, Laura Masini, Sagit Meir, Yoko Iijima, Koh Aoki, Ric de Vos, Dov Prusky, Saul Burdman, Jules Beekwilder, Asaph AharoniPlant Cell Dec 2011, 23 (12) 4507-4525; DOI: https://doi.org/10.1105/tpc.111.088732
Steroidal alkaloids (SAs) are specialized metabolites found in members of the Solanaceae family that provide plants with a chemical barrier against a broad range of pathogens. In this study, the role of GLYCOALKALOID METABOLISM1 (GAME1) in the biosynthesis of tomato SAs was revealed, highlighting the importance of GAME1 in SA glycosylation and in reducing the toxicity of SA metabolites to the plant cell.
Q
Qin, Tao
- Open AccessMDP25, A Novel Calcium Regulatory Protein, Mediates Hypocotyl Cell Elongation by Destabilizing Cortical Microtubules in ArabidopsisJiejie Li, Xianling Wang, Tao Qin, Yan Zhang, Xiaomin Liu, Jingbo Sun, Yuan Zhou, Lei Zhu, Ziding Zhang, Ming Yuan, Tonglin MaoPlant Cell Dec 2011, 23 (12) 4411-4427; DOI: https://doi.org/10.1105/tpc.111.092684
This study reveals that the Arabidopsis thaliana microtubule-destabilizing protein MDP25 regulates hypocotyl elongation. The microtubule-destabilizing activity of MDP25 is regulated by calcium, which causes MDP25 to disassociate from the plasma membrane and move into the cytosol. We identified a novel microtubule mechanism that regulates hypocotyl cell elongation in Arabidopsis.
Quake, Stephen R.
- Open AccessThe RootChip: An Integrated Microfluidic Chip for Plant ScienceGuido Grossmann, Woei-Jiun Guo, David W. Ehrhardt, Wolf B. Frommer, Rene V. Sit, Stephen R. Quake, Matthias MeierPlant Cell Dec 2011, 23 (12) 4234-4240; DOI: https://doi.org/10.1105/tpc.111.092577
R
Rascher, Uwe
- Open AccessSystems Analysis of a Maize Leaf Developmental Gradient Redefines the Current C4 Model and Provides Candidates for RegulationThea R. Pick, Andrea Bräutigam, Urte Schlüter, Alisandra K. Denton, Christian Colmsee, Uwe Scholz, Holger Fahnenstich, Roland Pieruschka, Uwe Rascher, Uwe Sonnewald, Andreas P.M. WeberPlant Cell Dec 2011, 23 (12) 4208-4220; DOI: https://doi.org/10.1105/tpc.111.090324
This work reports on a comprehensive systems biology analysis of maize leaves, concluding that C4 photosynthesis is established from sink tissue without an intermediate phase of C3 or C2 photosynthesis.
Redding, Kevin
- You have accessRestricted AccessLumen Thiol Oxidoreductase1, a Disulfide Bond-Forming Catalyst, Is Required for the Assembly of Photosystem II in ArabidopsisMohamed Karamoko, Sara Cline, Kevin Redding, Natividad Ruiz, Patrice P. HamelPlant Cell Dec 2011, 23 (12) 4462-4475; DOI: https://doi.org/10.1105/tpc.111.089680
This study demonstrates that Arabidopsis thaliana Lumen Thiol Oxidoreductase1 (LTO1) catalyzes disulfide bond formation in the thylakoid lumen of the chloroplast. Loss of LTO1 function yields an assembly defect in photosystem II, a photosynthetic complex that requires a disulfide bond in a structural subunit localized in the lumen.
Ren, Maozhi
- Open AccessPOPCORN Functions in the Auxin Pathway to Regulate Embryonic Body Plan and Meristem Organization in ArabidopsisDaoquan Xiang, Hui Yang, Prakash Venglat, Yongguo Cao, Rui Wen, Maozhi Ren, Sandra Stone, Edwin Wang, Hong Wang, Wei Xiao, Dolf Weijers, Thomas Berleth, Thomas Laux, Gopalan Selvaraj, Raju DatlaPlant Cell Dec 2011, 23 (12) 4348-4367; DOI: https://doi.org/10.1105/tpc.111.091777
This study describes a WD-40 repeat–containing gene, POPCORN (PCN), required for embryo development in Arabidopsis thaliana. PCN functions in the auxin pathway and regulates establishment and maintenance of shoot and root meristems during embryonic and postembryonic development.
Reyes, Francisca C.
- You have accessRestricted AccessReply: Internal Membranes in Maize Aleurone Protein Storage Vacuoles: Beyond AutophagyFrancisca C. Reyes, Marisa S. Otegui, Richard VierstraPlant Cell Dec 2011, 23 (12) 4171-4172; DOI: https://doi.org/10.1105/tpc.111.231240
Richter, Andreas
- You have accessRestricted AccessAn Arabidopsis GluTR Binding Protein Mediates Spatial Separation of 5-Aminolevulinic Acid Synthesis in ChloroplastsOlaf Czarnecki, Boris Hedtke, Michael Melzer, Maxi Rothbart, Andreas Richter, Yvonne Schröter, Thomas Pfannschmidt, Bernhard GrimmPlant Cell Dec 2011, 23 (12) 4476-4491; DOI: https://doi.org/10.1105/tpc.111.086421
The identification and characterization of a glutamyl-tRNA reductase binding protein (GluTRBP) results in a new model for spatial separation of 5-aminolevulinic acid (ALA) formation. GluTRBP-bound GluTR is attached to the thylakoid membrane and synthesizes ALA that is likely directed into the heme-synthesizing pathway.
Rogachev, Ilana
- You have accessRestricted AccessGLYCOALKALOID METABOLISM1 Is Required for Steroidal Alkaloid Glycosylation and Prevention of Phytotoxicity in TomatoMaxim Itkin, Ilana Rogachev, Noam Alkan, Tally Rosenberg, Sergey Malitsky, Laura Masini, Sagit Meir, Yoko Iijima, Koh Aoki, Ric de Vos, Dov Prusky, Saul Burdman, Jules Beekwilder, Asaph AharoniPlant Cell Dec 2011, 23 (12) 4507-4525; DOI: https://doi.org/10.1105/tpc.111.088732
Steroidal alkaloids (SAs) are specialized metabolites found in members of the Solanaceae family that provide plants with a chemical barrier against a broad range of pathogens. In this study, the role of GLYCOALKALOID METABOLISM1 (GAME1) in the biosynthesis of tomato SAs was revealed, highlighting the importance of GAME1 in SA glycosylation and in reducing the toxicity of SA metabolites to the plant cell.
Rogers, John C.
- You have accessRestricted AccessInternal Membranes in Maize Aleurone Protein Storage Vacuoles: Beyond AutophagyJohn C. RogersPlant Cell Dec 2011, 23 (12) 4168-4171; DOI: https://doi.org/10.1105/tpc.111.092551
Rosenberg, Tally
- You have accessRestricted AccessGLYCOALKALOID METABOLISM1 Is Required for Steroidal Alkaloid Glycosylation and Prevention of Phytotoxicity in TomatoMaxim Itkin, Ilana Rogachev, Noam Alkan, Tally Rosenberg, Sergey Malitsky, Laura Masini, Sagit Meir, Yoko Iijima, Koh Aoki, Ric de Vos, Dov Prusky, Saul Burdman, Jules Beekwilder, Asaph AharoniPlant Cell Dec 2011, 23 (12) 4507-4525; DOI: https://doi.org/10.1105/tpc.111.088732
Steroidal alkaloids (SAs) are specialized metabolites found in members of the Solanaceae family that provide plants with a chemical barrier against a broad range of pathogens. In this study, the role of GLYCOALKALOID METABOLISM1 (GAME1) in the biosynthesis of tomato SAs was revealed, highlighting the importance of GAME1 in SA glycosylation and in reducing the toxicity of SA metabolites to the plant cell.
Ross-Elliott, Tim J.
- You have accessRestricted AccessPhloem Ultrastructure and Pressure Flow: Sieve-Element-Occlusion-Related Agglomerations Do Not Affect TranslocationDaniel R. Froelich, Daniel L. Mullendore, Kåre H. Jensen, Tim J. Ross-Elliott, James A. Anstead, Gary A. Thompson, Hélène C. Pélissier, Michael KnoblauchPlant Cell Dec 2011, 23 (12) 4428-4445; DOI: https://doi.org/10.1105/tpc.111.093179
Several protocols and methods were developed to study the in vivo structure, ultrastructure, and physiology of sieve tubes. The ultrastructure of sieve tubes differs significantly from what has been shown so far. The impact on phloem function is discussed.
Rothbart, Maxi
- You have accessRestricted AccessAn Arabidopsis GluTR Binding Protein Mediates Spatial Separation of 5-Aminolevulinic Acid Synthesis in ChloroplastsOlaf Czarnecki, Boris Hedtke, Michael Melzer, Maxi Rothbart, Andreas Richter, Yvonne Schröter, Thomas Pfannschmidt, Bernhard GrimmPlant Cell Dec 2011, 23 (12) 4476-4491; DOI: https://doi.org/10.1105/tpc.111.086421
The identification and characterization of a glutamyl-tRNA reductase binding protein (GluTRBP) results in a new model for spatial separation of 5-aminolevulinic acid (ALA) formation. GluTRBP-bound GluTR is attached to the thylakoid membrane and synthesizes ALA that is likely directed into the heme-synthesizing pathway.
Rozier, Frédérique
- You have accessRestricted AccessA Data-Driven Integrative Model of Sepal Primordium Polarity in ArabidopsisCamilo La Rota, Jérôme Chopard, Pradeep Das, Sandrine Paindavoine, Frédérique Rozier, Etienne Farcot, Christophe Godin, Jan Traas, Françoise MonégerPlant Cell Dec 2011, 23 (12) 4318-4333; DOI: https://doi.org/10.1105/tpc.111.092619
This study presents a new modeling approach allowing diverse types of data to be integrated in a coherent molecular regulatory network model. This was used to analyze sepal primordium development and revealed three previously unreported pathways potentially involved in polarity.
Ruiz, Natividad
- You have accessRestricted AccessLumen Thiol Oxidoreductase1, a Disulfide Bond-Forming Catalyst, Is Required for the Assembly of Photosystem II in ArabidopsisMohamed Karamoko, Sara Cline, Kevin Redding, Natividad Ruiz, Patrice P. HamelPlant Cell Dec 2011, 23 (12) 4462-4475; DOI: https://doi.org/10.1105/tpc.111.089680
This study demonstrates that Arabidopsis thaliana Lumen Thiol Oxidoreductase1 (LTO1) catalyzes disulfide bond formation in the thylakoid lumen of the chloroplast. Loss of LTO1 function yields an assembly defect in photosystem II, a photosynthetic complex that requires a disulfide bond in a structural subunit localized in the lumen.
S
Samach, Aviva
- You have accessRestricted AccessIdentification of Plant RAD52 Homologs and Characterization of the Arabidopsis thaliana RAD52-Like GenesAviva Samach, Cathy Melamed-Bessudo, Naomi Avivi-Ragolski, Shmuel Pietrokovski, Avraham A. LevyPlant Cell Dec 2011, 23 (12) 4266-4279; DOI: https://doi.org/10.1105/tpc.111.091744
This article identifies plant homologs of the DNA repair protein RAD52. Typically, plants contain two conserved genes, which duplicated early in plant evolution, code for proteins targeted to the nucleus, chloroplast, and mitochondria, and are involved in DNA damage response, homologous recombination, and fertility.
Sasidharan, Rashmi
- You have accessRestricted AccessPlant Oxygen Sensing Is Mediated by the N-End Rule Pathway: A Milestone in Plant AnaerobiosisRashmi Sasidharan, Angelika MustrophPlant Cell Dec 2011, 23 (12) 4173-4183; DOI: https://doi.org/10.1105/tpc.111.093880
Sato, Yutaka
- Open AccessPositive Autoregulation of a KNOX Gene Is Essential for Shoot Apical Meristem Maintenance in RiceKatsutoshi Tsuda, Yukihiro Ito, Yutaka Sato, Nori KurataPlant Cell Dec 2011, 23 (12) 4368-4381; DOI: https://doi.org/10.1105/tpc.111.090050
This work reveals that rice KNOX genes OSH1 and OSH15 are required for shoot apical meristem (SAM) formation and maintenance and that KNOX gene expression is positively and directly regulated by OSH1 through evolutionarily conserved cis-elements. This is thought to be a novel mechanism that is indispensable for self-maintenance of the SAM.
Schlüter, Urte
- Open AccessSystems Analysis of a Maize Leaf Developmental Gradient Redefines the Current C4 Model and Provides Candidates for RegulationThea R. Pick, Andrea Bräutigam, Urte Schlüter, Alisandra K. Denton, Christian Colmsee, Uwe Scholz, Holger Fahnenstich, Roland Pieruschka, Uwe Rascher, Uwe Sonnewald, Andreas P.M. WeberPlant Cell Dec 2011, 23 (12) 4208-4220; DOI: https://doi.org/10.1105/tpc.111.090324
This work reports on a comprehensive systems biology analysis of maize leaves, concluding that C4 photosynthesis is established from sink tissue without an intermediate phase of C3 or C2 photosynthesis.
Schnable, Patrick S.
- You have accessRestricted AccessParent-of-Origin Effects on Gene Expression and DNA Methylation in the Maize EndospermAmanda J. Waters, Irina Makarevitch, Steve R. Eichten, Ruth A. Swanson-Wagner, Cheng-Ting Yeh, Wayne Xu, Patrick S. Schnable, Matthew W. Vaughn, Mary Gehring, Nathan M. SpringerPlant Cell Dec 2011, 23 (12) 4221-4233; DOI: https://doi.org/10.1105/tpc.111.092668
This work uses deep sequencing of RNAs from maize endosperm and embryo to identify 54 maternally expressed genes and 46 paternally expressed genes and then examines genome-wide DNA methylation and gene expression, finding hypomethylation of the maternal allele and endosperm-specific expression for many of the imprinted genes.
Scholz, Uwe
- Open AccessSystems Analysis of a Maize Leaf Developmental Gradient Redefines the Current C4 Model and Provides Candidates for RegulationThea R. Pick, Andrea Bräutigam, Urte Schlüter, Alisandra K. Denton, Christian Colmsee, Uwe Scholz, Holger Fahnenstich, Roland Pieruschka, Uwe Rascher, Uwe Sonnewald, Andreas P.M. WeberPlant Cell Dec 2011, 23 (12) 4208-4220; DOI: https://doi.org/10.1105/tpc.111.090324
This work reports on a comprehensive systems biology analysis of maize leaves, concluding that C4 photosynthesis is established from sink tissue without an intermediate phase of C3 or C2 photosynthesis.
Schröter, Yvonne
- You have accessRestricted AccessAn Arabidopsis GluTR Binding Protein Mediates Spatial Separation of 5-Aminolevulinic Acid Synthesis in ChloroplastsOlaf Czarnecki, Boris Hedtke, Michael Melzer, Maxi Rothbart, Andreas Richter, Yvonne Schröter, Thomas Pfannschmidt, Bernhard GrimmPlant Cell Dec 2011, 23 (12) 4476-4491; DOI: https://doi.org/10.1105/tpc.111.086421
The identification and characterization of a glutamyl-tRNA reductase binding protein (GluTRBP) results in a new model for spatial separation of 5-aminolevulinic acid (ALA) formation. GluTRBP-bound GluTR is attached to the thylakoid membrane and synthesizes ALA that is likely directed into the heme-synthesizing pathway.
Selvaraj, Gopalan
- Open AccessPOPCORN Functions in the Auxin Pathway to Regulate Embryonic Body Plan and Meristem Organization in ArabidopsisDaoquan Xiang, Hui Yang, Prakash Venglat, Yongguo Cao, Rui Wen, Maozhi Ren, Sandra Stone, Edwin Wang, Hong Wang, Wei Xiao, Dolf Weijers, Thomas Berleth, Thomas Laux, Gopalan Selvaraj, Raju DatlaPlant Cell Dec 2011, 23 (12) 4348-4367; DOI: https://doi.org/10.1105/tpc.111.091777
This study describes a WD-40 repeat–containing gene, POPCORN (PCN), required for embryo development in Arabidopsis thaliana. PCN functions in the auxin pathway and regulates establishment and maintenance of shoot and root meristems during embryonic and postembryonic development.
Settles, A. Mark
- Open AccessMaize Rough Endosperm3 Encodes an RNA Splicing Factor Required for Endosperm Cell Differentiation and Has a Nonautonomous Effect on Embryo DevelopmentRomain Fouquet, Federico Martin, Diego S. Fajardo, Christine M. Gault, Elisa Gómez, Chi-Wah Tseung, Tyler Policht, Gregorio Hueros, A. Mark SettlesPlant Cell Dec 2011, 23 (12) 4280-4297; DOI: https://doi.org/10.1105/tpc.111.092163
We used maize translocations to identify rough endosperm3 (rgh3) as a locus required in the endosperm to promote embryo development. The rgh3 mutant impairs or delays endosperm cell differentiation and encodes a hypomorphic allele of URP, a core RNA splicing factor. A subset of alternatively spliced transcripts shows differences in splicing patterns in wild-type and rgh3 tissues.
Sit, Rene V.
- Open AccessThe RootChip: An Integrated Microfluidic Chip for Plant ScienceGuido Grossmann, Woei-Jiun Guo, David W. Ehrhardt, Wolf B. Frommer, Rene V. Sit, Stephen R. Quake, Matthias MeierPlant Cell Dec 2011, 23 (12) 4234-4240; DOI: https://doi.org/10.1105/tpc.111.092577
Sonnewald, Uwe
- Open AccessSystems Analysis of a Maize Leaf Developmental Gradient Redefines the Current C4 Model and Provides Candidates for RegulationThea R. Pick, Andrea Bräutigam, Urte Schlüter, Alisandra K. Denton, Christian Colmsee, Uwe Scholz, Holger Fahnenstich, Roland Pieruschka, Uwe Rascher, Uwe Sonnewald, Andreas P.M. WeberPlant Cell Dec 2011, 23 (12) 4208-4220; DOI: https://doi.org/10.1105/tpc.111.090324
This work reports on a comprehensive systems biology analysis of maize leaves, concluding that C4 photosynthesis is established from sink tissue without an intermediate phase of C3 or C2 photosynthesis.
Springer, Nathan M.
- You have accessRestricted AccessParent-of-Origin Effects on Gene Expression and DNA Methylation in the Maize EndospermAmanda J. Waters, Irina Makarevitch, Steve R. Eichten, Ruth A. Swanson-Wagner, Cheng-Ting Yeh, Wayne Xu, Patrick S. Schnable, Matthew W. Vaughn, Mary Gehring, Nathan M. SpringerPlant Cell Dec 2011, 23 (12) 4221-4233; DOI: https://doi.org/10.1105/tpc.111.092668
This work uses deep sequencing of RNAs from maize endosperm and embryo to identify 54 maternally expressed genes and 46 paternally expressed genes and then examines genome-wide DNA methylation and gene expression, finding hypomethylation of the maternal allele and endosperm-specific expression for many of the imprinted genes.
Stephens, Jennifer
- You have accessRestricted AccessSyringyl Lignin Is Unaltered by Severe Sinapyl Alcohol Dehydrogenase Suppression in TobaccoAbdellah Barakate, Jennifer Stephens, Alison Goldie, William N. Hunter, David Marshall, Robert D. Hancock, Catherine Lapierre, Kris Morreel, Wout Boerjan, Claire HalpinPlant Cell Dec 2011, 23 (12) 4492-4506; DOI: https://doi.org/10.1105/tpc.111.089037
This study identifies cinnamyl alcohol dehydrogenase as the predominant enzyme that catalyzes the final step in S lignin biosynthesis in woody angiosperm xylem and challenges the widely held view that sinapyl alcohol dehydrogenase regulates S lignin biosynthesis in angiosperms.
Stone, Sandra
- Open AccessPOPCORN Functions in the Auxin Pathway to Regulate Embryonic Body Plan and Meristem Organization in ArabidopsisDaoquan Xiang, Hui Yang, Prakash Venglat, Yongguo Cao, Rui Wen, Maozhi Ren, Sandra Stone, Edwin Wang, Hong Wang, Wei Xiao, Dolf Weijers, Thomas Berleth, Thomas Laux, Gopalan Selvaraj, Raju DatlaPlant Cell Dec 2011, 23 (12) 4348-4367; DOI: https://doi.org/10.1105/tpc.111.091777
This study describes a WD-40 repeat–containing gene, POPCORN (PCN), required for embryo development in Arabidopsis thaliana. PCN functions in the auxin pathway and regulates establishment and maintenance of shoot and root meristems during embryonic and postembryonic development.
Sun, Jingbo
- Open AccessMDP25, A Novel Calcium Regulatory Protein, Mediates Hypocotyl Cell Elongation by Destabilizing Cortical Microtubules in ArabidopsisJiejie Li, Xianling Wang, Tao Qin, Yan Zhang, Xiaomin Liu, Jingbo Sun, Yuan Zhou, Lei Zhu, Ziding Zhang, Ming Yuan, Tonglin MaoPlant Cell Dec 2011, 23 (12) 4411-4427; DOI: https://doi.org/10.1105/tpc.111.092684
This study reveals that the Arabidopsis thaliana microtubule-destabilizing protein MDP25 regulates hypocotyl elongation. The microtubule-destabilizing activity of MDP25 is regulated by calcium, which causes MDP25 to disassociate from the plasma membrane and move into the cytosol. We identified a novel microtubule mechanism that regulates hypocotyl cell elongation in Arabidopsis.
Swanson-Wagner, Ruth A.
- You have accessRestricted AccessParent-of-Origin Effects on Gene Expression and DNA Methylation in the Maize EndospermAmanda J. Waters, Irina Makarevitch, Steve R. Eichten, Ruth A. Swanson-Wagner, Cheng-Ting Yeh, Wayne Xu, Patrick S. Schnable, Matthew W. Vaughn, Mary Gehring, Nathan M. SpringerPlant Cell Dec 2011, 23 (12) 4221-4233; DOI: https://doi.org/10.1105/tpc.111.092668
This work uses deep sequencing of RNAs from maize endosperm and embryo to identify 54 maternally expressed genes and 46 paternally expressed genes and then examines genome-wide DNA methylation and gene expression, finding hypomethylation of the maternal allele and endosperm-specific expression for many of the imprinted genes.
T
Tang, Haibao
- You have accessRestricted AccessDifferent Gene Families in Arabidopsis thaliana Transposed in Different Epochs and at Different Frequencies throughout the RosidsMargaret R. Woodhouse, Haibao Tang, Michael FreelingPlant Cell Dec 2011, 23 (12) 4241-4253; DOI: https://doi.org/10.1105/tpc.111.093567
This work examines the chromosomal positional history of all genes in Arabidopsis thaliana through evolutionary time in the rosid superorder, finding that mobile gene families are under different selection pressure than syntenic gene families.
Thompson, Gary A.
- You have accessRestricted AccessPhloem Ultrastructure and Pressure Flow: Sieve-Element-Occlusion-Related Agglomerations Do Not Affect TranslocationDaniel R. Froelich, Daniel L. Mullendore, Kåre H. Jensen, Tim J. Ross-Elliott, James A. Anstead, Gary A. Thompson, Hélène C. Pélissier, Michael KnoblauchPlant Cell Dec 2011, 23 (12) 4428-4445; DOI: https://doi.org/10.1105/tpc.111.093179
Several protocols and methods were developed to study the in vivo structure, ultrastructure, and physiology of sieve tubes. The ultrastructure of sieve tubes differs significantly from what has been shown so far. The impact on phloem function is discussed.
Traas, Jan
- You have accessRestricted AccessA Data-Driven Integrative Model of Sepal Primordium Polarity in ArabidopsisCamilo La Rota, Jérôme Chopard, Pradeep Das, Sandrine Paindavoine, Frédérique Rozier, Etienne Farcot, Christophe Godin, Jan Traas, Françoise MonégerPlant Cell Dec 2011, 23 (12) 4318-4333; DOI: https://doi.org/10.1105/tpc.111.092619
This study presents a new modeling approach allowing diverse types of data to be integrated in a coherent molecular regulatory network model. This was used to analyze sepal primordium development and revealed three previously unreported pathways potentially involved in polarity.
Tseung, Chi-Wah
- Open AccessMaize Rough Endosperm3 Encodes an RNA Splicing Factor Required for Endosperm Cell Differentiation and Has a Nonautonomous Effect on Embryo DevelopmentRomain Fouquet, Federico Martin, Diego S. Fajardo, Christine M. Gault, Elisa Gómez, Chi-Wah Tseung, Tyler Policht, Gregorio Hueros, A. Mark SettlesPlant Cell Dec 2011, 23 (12) 4280-4297; DOI: https://doi.org/10.1105/tpc.111.092163
We used maize translocations to identify rough endosperm3 (rgh3) as a locus required in the endosperm to promote embryo development. The rgh3 mutant impairs or delays endosperm cell differentiation and encodes a hypomorphic allele of URP, a core RNA splicing factor. A subset of alternatively spliced transcripts shows differences in splicing patterns in wild-type and rgh3 tissues.
Tsuda, Katsutoshi
- Open AccessPositive Autoregulation of a KNOX Gene Is Essential for Shoot Apical Meristem Maintenance in RiceKatsutoshi Tsuda, Yukihiro Ito, Yutaka Sato, Nori KurataPlant Cell Dec 2011, 23 (12) 4368-4381; DOI: https://doi.org/10.1105/tpc.111.090050
This work reveals that rice KNOX genes OSH1 and OSH15 are required for shoot apical meristem (SAM) formation and maintenance and that KNOX gene expression is positively and directly regulated by OSH1 through evolutionarily conserved cis-elements. This is thought to be a novel mechanism that is indispensable for self-maintenance of the SAM.
V
Van den Daele, Hilde
- You have accessRestricted AccessArabidopsis ULTRAVIOLET-B-INSENSITIVE4 Maintains Cell Division Activity by Temporal Inhibition of the Anaphase-Promoting Complex/CyclosomeJefri Heyman, Hilde Van den Daele, Kevin De Wit, Véronique Boudolf, Barbara Berckmans, Aurine Verkest, Claire Lessa Alvim Kamei, Geert De Jaeger, Csaba Koncz, Lieven De VeylderPlant Cell Dec 2011, 23 (12) 4394-4410; DOI: https://doi.org/10.1105/tpc.111.091793
This work identifies ULTRAVIOLET-B-INSENSITIVE4 as a plant-specific inhibitor of the Anaphase-Promoting Complex/Cyclosome E3-ubiquitine ligase. Its activity allows the temporal accumulation of mitotic cyclins during the DNA replication phase, thereby linking DNA replication with mitosis.
Vaughn, Matthew W.
- You have accessRestricted AccessParent-of-Origin Effects on Gene Expression and DNA Methylation in the Maize EndospermAmanda J. Waters, Irina Makarevitch, Steve R. Eichten, Ruth A. Swanson-Wagner, Cheng-Ting Yeh, Wayne Xu, Patrick S. Schnable, Matthew W. Vaughn, Mary Gehring, Nathan M. SpringerPlant Cell Dec 2011, 23 (12) 4221-4233; DOI: https://doi.org/10.1105/tpc.111.092668
This work uses deep sequencing of RNAs from maize endosperm and embryo to identify 54 maternally expressed genes and 46 paternally expressed genes and then examines genome-wide DNA methylation and gene expression, finding hypomethylation of the maternal allele and endosperm-specific expression for many of the imprinted genes.
Venglat, Prakash
- Open AccessPOPCORN Functions in the Auxin Pathway to Regulate Embryonic Body Plan and Meristem Organization in ArabidopsisDaoquan Xiang, Hui Yang, Prakash Venglat, Yongguo Cao, Rui Wen, Maozhi Ren, Sandra Stone, Edwin Wang, Hong Wang, Wei Xiao, Dolf Weijers, Thomas Berleth, Thomas Laux, Gopalan Selvaraj, Raju DatlaPlant Cell Dec 2011, 23 (12) 4348-4367; DOI: https://doi.org/10.1105/tpc.111.091777
This study describes a WD-40 repeat–containing gene, POPCORN (PCN), required for embryo development in Arabidopsis thaliana. PCN functions in the auxin pathway and regulates establishment and maintenance of shoot and root meristems during embryonic and postembryonic development.
Verkest, Aurine
- You have accessRestricted AccessArabidopsis ULTRAVIOLET-B-INSENSITIVE4 Maintains Cell Division Activity by Temporal Inhibition of the Anaphase-Promoting Complex/CyclosomeJefri Heyman, Hilde Van den Daele, Kevin De Wit, Véronique Boudolf, Barbara Berckmans, Aurine Verkest, Claire Lessa Alvim Kamei, Geert De Jaeger, Csaba Koncz, Lieven De VeylderPlant Cell Dec 2011, 23 (12) 4394-4410; DOI: https://doi.org/10.1105/tpc.111.091793
This work identifies ULTRAVIOLET-B-INSENSITIVE4 as a plant-specific inhibitor of the Anaphase-Promoting Complex/Cyclosome E3-ubiquitine ligase. Its activity allows the temporal accumulation of mitotic cyclins during the DNA replication phase, thereby linking DNA replication with mitosis.
Vierstra, Richard
- You have accessRestricted AccessReply: Internal Membranes in Maize Aleurone Protein Storage Vacuoles: Beyond AutophagyFrancisca C. Reyes, Marisa S. Otegui, Richard VierstraPlant Cell Dec 2011, 23 (12) 4171-4172; DOI: https://doi.org/10.1105/tpc.111.231240
Vierstra, Richard D.
- You have accessRestricted AccessThe RPT2 Subunit of the 26S Proteasome Directs Complex Assembly, Histone Dynamics, and Gametophyte and Sporophyte Development in ArabidopsisKwang-Hee Lee, Atsushi Minami, Richard S. Marshall, Adam J. Book, Lisa M. Farmer, Joseph M. Walker, Richard D. VierstraPlant Cell Dec 2011, 23 (12) 4298-4317; DOI: https://doi.org/10.1105/tpc.111.089482
This study explores the function of two highly conserved isoforms of the Arabidopsis thaliana 26S proteasome subunit RPT2 that participate in proteasome-mediated protein turnover. The data point to a specific role for RPT2 in stem fasciation, male and female gametogenesis, and leaf, root, trichome, and pollen development, along with a common role for RP subunits in histone dynamics and nucleosome assembly.
W
Walker, Joseph M.
- You have accessRestricted AccessThe RPT2 Subunit of the 26S Proteasome Directs Complex Assembly, Histone Dynamics, and Gametophyte and Sporophyte Development in ArabidopsisKwang-Hee Lee, Atsushi Minami, Richard S. Marshall, Adam J. Book, Lisa M. Farmer, Joseph M. Walker, Richard D. VierstraPlant Cell Dec 2011, 23 (12) 4298-4317; DOI: https://doi.org/10.1105/tpc.111.089482
This study explores the function of two highly conserved isoforms of the Arabidopsis thaliana 26S proteasome subunit RPT2 that participate in proteasome-mediated protein turnover. The data point to a specific role for RPT2 in stem fasciation, male and female gametogenesis, and leaf, root, trichome, and pollen development, along with a common role for RP subunits in histone dynamics and nucleosome assembly.
Wang, Edwin
- Open AccessPOPCORN Functions in the Auxin Pathway to Regulate Embryonic Body Plan and Meristem Organization in ArabidopsisDaoquan Xiang, Hui Yang, Prakash Venglat, Yongguo Cao, Rui Wen, Maozhi Ren, Sandra Stone, Edwin Wang, Hong Wang, Wei Xiao, Dolf Weijers, Thomas Berleth, Thomas Laux, Gopalan Selvaraj, Raju DatlaPlant Cell Dec 2011, 23 (12) 4348-4367; DOI: https://doi.org/10.1105/tpc.111.091777
This study describes a WD-40 repeat–containing gene, POPCORN (PCN), required for embryo development in Arabidopsis thaliana. PCN functions in the auxin pathway and regulates establishment and maintenance of shoot and root meristems during embryonic and postembryonic development.
Wang, Hong
- Open AccessPOPCORN Functions in the Auxin Pathway to Regulate Embryonic Body Plan and Meristem Organization in ArabidopsisDaoquan Xiang, Hui Yang, Prakash Venglat, Yongguo Cao, Rui Wen, Maozhi Ren, Sandra Stone, Edwin Wang, Hong Wang, Wei Xiao, Dolf Weijers, Thomas Berleth, Thomas Laux, Gopalan Selvaraj, Raju DatlaPlant Cell Dec 2011, 23 (12) 4348-4367; DOI: https://doi.org/10.1105/tpc.111.091777
This study describes a WD-40 repeat–containing gene, POPCORN (PCN), required for embryo development in Arabidopsis thaliana. PCN functions in the auxin pathway and regulates establishment and maintenance of shoot and root meristems during embryonic and postembryonic development.
Wang, Nili
- You have accessRestricted AccessIncreased Leaf Angle1, a Raf-Like MAPKKK That Interacts with a Nuclear Protein Family, Regulates Mechanical Tissue Formation in the Lamina Joint of RiceJing Ning, Baocai Zhang, Nili Wang, Yihua Zhou, Lizhong XiongPlant Cell Dec 2011, 23 (12) 4334-4347; DOI: https://doi.org/10.1105/tpc.111.093419
This work characterizes ILA1, a kinase protein that regulates leaf angle through affecting mechanical properties at the leaf collar. It finds that ILA1 interacts with a previously undiscovered family of proteins whose function is unknown and mediates a different pathway than other reported kinases.
Wang, Xianling
- Open AccessMDP25, A Novel Calcium Regulatory Protein, Mediates Hypocotyl Cell Elongation by Destabilizing Cortical Microtubules in ArabidopsisJiejie Li, Xianling Wang, Tao Qin, Yan Zhang, Xiaomin Liu, Jingbo Sun, Yuan Zhou, Lei Zhu, Ziding Zhang, Ming Yuan, Tonglin MaoPlant Cell Dec 2011, 23 (12) 4411-4427; DOI: https://doi.org/10.1105/tpc.111.092684
This study reveals that the Arabidopsis thaliana microtubule-destabilizing protein MDP25 regulates hypocotyl elongation. The microtubule-destabilizing activity of MDP25 is regulated by calcium, which causes MDP25 to disassociate from the plasma membrane and move into the cytosol. We identified a novel microtubule mechanism that regulates hypocotyl cell elongation in Arabidopsis.
Waters, Amanda J.
- You have accessRestricted AccessParent-of-Origin Effects on Gene Expression and DNA Methylation in the Maize EndospermAmanda J. Waters, Irina Makarevitch, Steve R. Eichten, Ruth A. Swanson-Wagner, Cheng-Ting Yeh, Wayne Xu, Patrick S. Schnable, Matthew W. Vaughn, Mary Gehring, Nathan M. SpringerPlant Cell Dec 2011, 23 (12) 4221-4233; DOI: https://doi.org/10.1105/tpc.111.092668
This work uses deep sequencing of RNAs from maize endosperm and embryo to identify 54 maternally expressed genes and 46 paternally expressed genes and then examines genome-wide DNA methylation and gene expression, finding hypomethylation of the maternal allele and endosperm-specific expression for many of the imprinted genes.
Weber, Andreas P.M.
- Open AccessSystems Analysis of a Maize Leaf Developmental Gradient Redefines the Current C4 Model and Provides Candidates for RegulationThea R. Pick, Andrea Bräutigam, Urte Schlüter, Alisandra K. Denton, Christian Colmsee, Uwe Scholz, Holger Fahnenstich, Roland Pieruschka, Uwe Rascher, Uwe Sonnewald, Andreas P.M. WeberPlant Cell Dec 2011, 23 (12) 4208-4220; DOI: https://doi.org/10.1105/tpc.111.090324
This work reports on a comprehensive systems biology analysis of maize leaves, concluding that C4 photosynthesis is established from sink tissue without an intermediate phase of C3 or C2 photosynthesis.
Weijers, Dolf
- Open AccessPOPCORN Functions in the Auxin Pathway to Regulate Embryonic Body Plan and Meristem Organization in ArabidopsisDaoquan Xiang, Hui Yang, Prakash Venglat, Yongguo Cao, Rui Wen, Maozhi Ren, Sandra Stone, Edwin Wang, Hong Wang, Wei Xiao, Dolf Weijers, Thomas Berleth, Thomas Laux, Gopalan Selvaraj, Raju DatlaPlant Cell Dec 2011, 23 (12) 4348-4367; DOI: https://doi.org/10.1105/tpc.111.091777
This study describes a WD-40 repeat–containing gene, POPCORN (PCN), required for embryo development in Arabidopsis thaliana. PCN functions in the auxin pathway and regulates establishment and maintenance of shoot and root meristems during embryonic and postembryonic development.
Wen, Rui
- Open AccessPOPCORN Functions in the Auxin Pathway to Regulate Embryonic Body Plan and Meristem Organization in ArabidopsisDaoquan Xiang, Hui Yang, Prakash Venglat, Yongguo Cao, Rui Wen, Maozhi Ren, Sandra Stone, Edwin Wang, Hong Wang, Wei Xiao, Dolf Weijers, Thomas Berleth, Thomas Laux, Gopalan Selvaraj, Raju DatlaPlant Cell Dec 2011, 23 (12) 4348-4367; DOI: https://doi.org/10.1105/tpc.111.091777
This study describes a WD-40 repeat–containing gene, POPCORN (PCN), required for embryo development in Arabidopsis thaliana. PCN functions in the auxin pathway and regulates establishment and maintenance of shoot and root meristems during embryonic and postembryonic development.
White, Charles I.
- You have accessRestricted AccessArabidopsis ATM and ATR Kinases Prevent Propagation of Genome Damage Caused by Telomere DysfunctionSimon Amiard, Annie Depeiges, Elisabeth Allain, Charles I. White, Maria Eugenia GallegoPlant Cell Dec 2011, 23 (12) 4254-4265; DOI: https://doi.org/10.1105/tpc.111.092387
This article shows that unprotected telomeres in plant cells are recognized as DNA breaks and elicit a DNA damage signal that is transduced by the ATM and ATR kinases, with differing specificities for eroded and for uncapped telomeres. It finds that both kinases contribute to genomic stability by inducing programmed cell death and elimination of genetically unstable cells.
Woodhouse, Margaret R.
- You have accessRestricted AccessDifferent Gene Families in Arabidopsis thaliana Transposed in Different Epochs and at Different Frequencies throughout the RosidsMargaret R. Woodhouse, Haibao Tang, Michael FreelingPlant Cell Dec 2011, 23 (12) 4241-4253; DOI: https://doi.org/10.1105/tpc.111.093567
This work examines the chromosomal positional history of all genes in Arabidopsis thaliana through evolutionary time in the rosid superorder, finding that mobile gene families are under different selection pressure than syntenic gene families.
X
Xiang, Daoquan
- Open AccessPOPCORN Functions in the Auxin Pathway to Regulate Embryonic Body Plan and Meristem Organization in ArabidopsisDaoquan Xiang, Hui Yang, Prakash Venglat, Yongguo Cao, Rui Wen, Maozhi Ren, Sandra Stone, Edwin Wang, Hong Wang, Wei Xiao, Dolf Weijers, Thomas Berleth, Thomas Laux, Gopalan Selvaraj, Raju DatlaPlant Cell Dec 2011, 23 (12) 4348-4367; DOI: https://doi.org/10.1105/tpc.111.091777
This study describes a WD-40 repeat–containing gene, POPCORN (PCN), required for embryo development in Arabidopsis thaliana. PCN functions in the auxin pathway and regulates establishment and maintenance of shoot and root meristems during embryonic and postembryonic development.
Xiao, Wei
- Open AccessPOPCORN Functions in the Auxin Pathway to Regulate Embryonic Body Plan and Meristem Organization in ArabidopsisDaoquan Xiang, Hui Yang, Prakash Venglat, Yongguo Cao, Rui Wen, Maozhi Ren, Sandra Stone, Edwin Wang, Hong Wang, Wei Xiao, Dolf Weijers, Thomas Berleth, Thomas Laux, Gopalan Selvaraj, Raju DatlaPlant Cell Dec 2011, 23 (12) 4348-4367; DOI: https://doi.org/10.1105/tpc.111.091777
This study describes a WD-40 repeat–containing gene, POPCORN (PCN), required for embryo development in Arabidopsis thaliana. PCN functions in the auxin pathway and regulates establishment and maintenance of shoot and root meristems during embryonic and postembryonic development.
Xiong, Lizhong
- You have accessRestricted AccessIncreased Leaf Angle1, a Raf-Like MAPKKK That Interacts with a Nuclear Protein Family, Regulates Mechanical Tissue Formation in the Lamina Joint of RiceJing Ning, Baocai Zhang, Nili Wang, Yihua Zhou, Lizhong XiongPlant Cell Dec 2011, 23 (12) 4334-4347; DOI: https://doi.org/10.1105/tpc.111.093419
This work characterizes ILA1, a kinase protein that regulates leaf angle through affecting mechanical properties at the leaf collar. It finds that ILA1 interacts with a previously undiscovered family of proteins whose function is unknown and mediates a different pathway than other reported kinases.
Xu, Wayne
- You have accessRestricted AccessParent-of-Origin Effects on Gene Expression and DNA Methylation in the Maize EndospermAmanda J. Waters, Irina Makarevitch, Steve R. Eichten, Ruth A. Swanson-Wagner, Cheng-Ting Yeh, Wayne Xu, Patrick S. Schnable, Matthew W. Vaughn, Mary Gehring, Nathan M. SpringerPlant Cell Dec 2011, 23 (12) 4221-4233; DOI: https://doi.org/10.1105/tpc.111.092668
This work uses deep sequencing of RNAs from maize endosperm and embryo to identify 54 maternally expressed genes and 46 paternally expressed genes and then examines genome-wide DNA methylation and gene expression, finding hypomethylation of the maternal allele and endosperm-specific expression for many of the imprinted genes.
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Yang, Hui
- Open AccessPOPCORN Functions in the Auxin Pathway to Regulate Embryonic Body Plan and Meristem Organization in ArabidopsisDaoquan Xiang, Hui Yang, Prakash Venglat, Yongguo Cao, Rui Wen, Maozhi Ren, Sandra Stone, Edwin Wang, Hong Wang, Wei Xiao, Dolf Weijers, Thomas Berleth, Thomas Laux, Gopalan Selvaraj, Raju DatlaPlant Cell Dec 2011, 23 (12) 4348-4367; DOI: https://doi.org/10.1105/tpc.111.091777
This study describes a WD-40 repeat–containing gene, POPCORN (PCN), required for embryo development in Arabidopsis thaliana. PCN functions in the auxin pathway and regulates establishment and maintenance of shoot and root meristems during embryonic and postembryonic development.
Yeh, Cheng-Ting
- You have accessRestricted AccessParent-of-Origin Effects on Gene Expression and DNA Methylation in the Maize EndospermAmanda J. Waters, Irina Makarevitch, Steve R. Eichten, Ruth A. Swanson-Wagner, Cheng-Ting Yeh, Wayne Xu, Patrick S. Schnable, Matthew W. Vaughn, Mary Gehring, Nathan M. SpringerPlant Cell Dec 2011, 23 (12) 4221-4233; DOI: https://doi.org/10.1105/tpc.111.092668
This work uses deep sequencing of RNAs from maize endosperm and embryo to identify 54 maternally expressed genes and 46 paternally expressed genes and then examines genome-wide DNA methylation and gene expression, finding hypomethylation of the maternal allele and endosperm-specific expression for many of the imprinted genes.
Yoshioka, Yasushi
- You have accessRestricted AccessGIGAS CELL1, a Novel Negative Regulator of the Anaphase-Promoting Complex/Cyclosome, Is Required for Proper Mitotic Progression and Cell Fate Determination in ArabidopsisEriko Iwata, Saki Ikeda, Sachihiro Matsunaga, Mariko Kurata, Yasushi Yoshioka, Marie-Claire Criqui, Pascal Genschik, Masaki ItoPlant Cell Dec 2011, 23 (12) 4382-4393; DOI: https://doi.org/10.1105/tpc.111.092049
A novel plant-specific inhibitor of anaphase-promoting complex/cyclosome was identified from the gigas cell1 (gig1) mutation, which causes polyploidization of somatic cells due to ectopic endomitosis. This mutation also generated mixed-fate cells with both characters of guard cells and pavement cells, suggesting that GIG1 may have a role in cell fate determination, in addition to its role in proper mitotic progression.
Yuan, Ming
- Open AccessMDP25, A Novel Calcium Regulatory Protein, Mediates Hypocotyl Cell Elongation by Destabilizing Cortical Microtubules in ArabidopsisJiejie Li, Xianling Wang, Tao Qin, Yan Zhang, Xiaomin Liu, Jingbo Sun, Yuan Zhou, Lei Zhu, Ziding Zhang, Ming Yuan, Tonglin MaoPlant Cell Dec 2011, 23 (12) 4411-4427; DOI: https://doi.org/10.1105/tpc.111.092684
This study reveals that the Arabidopsis thaliana microtubule-destabilizing protein MDP25 regulates hypocotyl elongation. The microtubule-destabilizing activity of MDP25 is regulated by calcium, which causes MDP25 to disassociate from the plasma membrane and move into the cytosol. We identified a novel microtubule mechanism that regulates hypocotyl cell elongation in Arabidopsis.
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Zhai, Jixian
- Open AccessMassive Analysis of Rice Small RNAs: Mechanistic Implications of Regulated MicroRNAs and Variants for Differential Target RNA CleavageDong-Hoon Jeong, Sunhee Park, Jixian Zhai, Sai Guna Ranjan Gurazada, Emanuele De Paoli, Blake C. Meyers, Pamela J. GreenPlant Cell Dec 2011, 23 (12) 4185-4207; DOI: https://doi.org/10.1105/tpc.111.089045
This massive analysis of rice small RNAs evaluated annotated microRNAs (miRNAs) and identified new miRNAs and miRNAs regulated by environmental stresses. Of particular interest are miRNA family members with distinct sequences and organ-preferential expression; some of these guide differential target cleavage and provide new insight about how an agriculturally significant phenotype may be regulated.
Zhang, Baocai
- You have accessRestricted AccessIncreased Leaf Angle1, a Raf-Like MAPKKK That Interacts with a Nuclear Protein Family, Regulates Mechanical Tissue Formation in the Lamina Joint of RiceJing Ning, Baocai Zhang, Nili Wang, Yihua Zhou, Lizhong XiongPlant Cell Dec 2011, 23 (12) 4334-4347; DOI: https://doi.org/10.1105/tpc.111.093419
This work characterizes ILA1, a kinase protein that regulates leaf angle through affecting mechanical properties at the leaf collar. It finds that ILA1 interacts with a previously undiscovered family of proteins whose function is unknown and mediates a different pathway than other reported kinases.
Zhang, Yan
- Open AccessMDP25, A Novel Calcium Regulatory Protein, Mediates Hypocotyl Cell Elongation by Destabilizing Cortical Microtubules in ArabidopsisJiejie Li, Xianling Wang, Tao Qin, Yan Zhang, Xiaomin Liu, Jingbo Sun, Yuan Zhou, Lei Zhu, Ziding Zhang, Ming Yuan, Tonglin MaoPlant Cell Dec 2011, 23 (12) 4411-4427; DOI: https://doi.org/10.1105/tpc.111.092684
This study reveals that the Arabidopsis thaliana microtubule-destabilizing protein MDP25 regulates hypocotyl elongation. The microtubule-destabilizing activity of MDP25 is regulated by calcium, which causes MDP25 to disassociate from the plasma membrane and move into the cytosol. We identified a novel microtubule mechanism that regulates hypocotyl cell elongation in Arabidopsis.
Zhang, Ziding
- Open AccessMDP25, A Novel Calcium Regulatory Protein, Mediates Hypocotyl Cell Elongation by Destabilizing Cortical Microtubules in ArabidopsisJiejie Li, Xianling Wang, Tao Qin, Yan Zhang, Xiaomin Liu, Jingbo Sun, Yuan Zhou, Lei Zhu, Ziding Zhang, Ming Yuan, Tonglin MaoPlant Cell Dec 2011, 23 (12) 4411-4427; DOI: https://doi.org/10.1105/tpc.111.092684
This study reveals that the Arabidopsis thaliana microtubule-destabilizing protein MDP25 regulates hypocotyl elongation. The microtubule-destabilizing activity of MDP25 is regulated by calcium, which causes MDP25 to disassociate from the plasma membrane and move into the cytosol. We identified a novel microtubule mechanism that regulates hypocotyl cell elongation in Arabidopsis.
Zhou, Yihua
- You have accessRestricted AccessIncreased Leaf Angle1, a Raf-Like MAPKKK That Interacts with a Nuclear Protein Family, Regulates Mechanical Tissue Formation in the Lamina Joint of RiceJing Ning, Baocai Zhang, Nili Wang, Yihua Zhou, Lizhong XiongPlant Cell Dec 2011, 23 (12) 4334-4347; DOI: https://doi.org/10.1105/tpc.111.093419
This work characterizes ILA1, a kinase protein that regulates leaf angle through affecting mechanical properties at the leaf collar. It finds that ILA1 interacts with a previously undiscovered family of proteins whose function is unknown and mediates a different pathway than other reported kinases.
Zhou, Yuan
- Open AccessMDP25, A Novel Calcium Regulatory Protein, Mediates Hypocotyl Cell Elongation by Destabilizing Cortical Microtubules in ArabidopsisJiejie Li, Xianling Wang, Tao Qin, Yan Zhang, Xiaomin Liu, Jingbo Sun, Yuan Zhou, Lei Zhu, Ziding Zhang, Ming Yuan, Tonglin MaoPlant Cell Dec 2011, 23 (12) 4411-4427; DOI: https://doi.org/10.1105/tpc.111.092684
This study reveals that the Arabidopsis thaliana microtubule-destabilizing protein MDP25 regulates hypocotyl elongation. The microtubule-destabilizing activity of MDP25 is regulated by calcium, which causes MDP25 to disassociate from the plasma membrane and move into the cytosol. We identified a novel microtubule mechanism that regulates hypocotyl cell elongation in Arabidopsis.
Zhu, Lei
- Open AccessMDP25, A Novel Calcium Regulatory Protein, Mediates Hypocotyl Cell Elongation by Destabilizing Cortical Microtubules in ArabidopsisJiejie Li, Xianling Wang, Tao Qin, Yan Zhang, Xiaomin Liu, Jingbo Sun, Yuan Zhou, Lei Zhu, Ziding Zhang, Ming Yuan, Tonglin MaoPlant Cell Dec 2011, 23 (12) 4411-4427; DOI: https://doi.org/10.1105/tpc.111.092684
This study reveals that the Arabidopsis thaliana microtubule-destabilizing protein MDP25 regulates hypocotyl elongation. The microtubule-destabilizing activity of MDP25 is regulated by calcium, which causes MDP25 to disassociate from the plasma membrane and move into the cytosol. We identified a novel microtubule mechanism that regulates hypocotyl cell elongation in Arabidopsis.