Table of Contents
A
Alonso, Jose
- You have accessRestricted AccessA WD40 Domain Cyclophilin Interacts with Histone H3 and Functions in Gene Repression and Organogenesis in ArabidopsisHong Li, Zengyong He, Guihua Lu, Sung Chul Lee, Jose Alonso, Joseph R. Ecker, Sheng LuanPlant Cell Aug 2007, 19 (8) 2403-2416; DOI: https://doi.org/10.1105/tpc.107.053579
In this study, the WD40-containing cyclophilin CYP71 is identified as an essential factor for normal development in Arabidopsis. CYP71 physically interacts with histone H3 and regulates the level of histone methylation of target loci, thus affecting gene expression. CYP71 is conserved among eukaryotes and may serve as a ubiquitous chromatin remodeling factor involved in epigenetic silencing.
Ammar, Randa
- You have accessRestricted AccessAdaptive Evolution Has Targeted the C-Terminal Domain of the RXLR Effectors of Plant Pathogenic OomycetesJoe Win, William Morgan, Jorunn Bos, Ksenia V. Krasileva, Liliana M. Cano, Angela Chaparro-Garcia, Randa Ammar, Brian J. Staskawicz, Sophien KamounPlant Cell Aug 2007, 19 (8) 2349-2369; DOI: https://doi.org/10.1105/tpc.107.051037
The RXLR effectors of plant pathogenic oomycetes are shown to be under adaptive selection. Positive selection has acted for the most part on the C-terminal region consistent with the view that RXLR effectors are modular proteins, with the C-terminal domain dedicated to modulating host defenses inside plant cells.
Arend, Matthias
- You have accessRestricted AccessA Molecular Timetable for Apical Bud Formation and Dormancy Induction in PoplarTom Ruttink, Matthias Arend, Kris Morreel, Véronique Storme, Stephane Rombauts, Jörg Fromm, Rishikesh P. Bhalerao, Wout Boerjan, Antje RohdePlant Cell Aug 2007, 19 (8) 2370-2390; DOI: https://doi.org/10.1105/tpc.107.052811
The transition from growth to dormancy is part of the seasonal growth cycle in perennial plants. In a systems biology approach involving transcriptome, metabolome, and electron microscopy analyses, autumnal bud development is dissected into its molecular programs. A comparative approach identified common genes for growth-to-dormancy transitions across different plant organs.
B
Barkan, Alice
- You have accessRestricted AccessA Ribonuclease III Domain Protein Functions in Group II Intron Splicing in Maize ChloroplastsKenneth P. Watkins, Tiffany S. Kroeger, Amy M. Cooke, Rosalind E. Williams-Carrier, Giulia Friso, Susan E. Belcher, Klaas J. van Wijk, Alice BarkanPlant Cell Aug 2007, 19 (8) 2606-2623; DOI: https://doi.org/10.1105/tpc.107.053736
Chloroplasts harbor numerous group II introns, ribozymes whose activity is facilitated by proteins in vivo. This study shows that RNC1, a protein with catalytically inactive RNAse III domains, promotes the splicing of many group II introns in chloroplasts and is bound to those introns in vivo. RNC1 functions both together with and independently of previously described chloroplast splicing factors.
Battaglia, Raffaella
- You have accessRestricted AccessGenetic and Molecular Interactions between BELL1 and MADS Box Factors Support Ovule Development in ArabidopsisVittoria Brambilla, Raffaella Battaglia, Monica Colombo, Simona Masiero, Stefano Bencivenga, Martin M. Kater, Lucia ColomboPlant Cell Aug 2007, 19 (8) 2544-2556; DOI: https://doi.org/10.1105/tpc.107.051797
Ovule development requires a correct balance of factors determining ovule and carpel identity. It is shown that this balance is obtained by complex formation between BELL1 and AGAMOUS. Furthermore, ovule differentiation requires the regulation of the stem cell maintenance gene WUSCHEL, the repression of which is predominantly maintained by BELL1 during ovule development.
Belcher, Susan E.
- You have accessRestricted AccessA Ribonuclease III Domain Protein Functions in Group II Intron Splicing in Maize ChloroplastsKenneth P. Watkins, Tiffany S. Kroeger, Amy M. Cooke, Rosalind E. Williams-Carrier, Giulia Friso, Susan E. Belcher, Klaas J. van Wijk, Alice BarkanPlant Cell Aug 2007, 19 (8) 2606-2623; DOI: https://doi.org/10.1105/tpc.107.053736
Chloroplasts harbor numerous group II introns, ribozymes whose activity is facilitated by proteins in vivo. This study shows that RNC1, a protein with catalytically inactive RNAse III domains, promotes the splicing of many group II introns in chloroplasts and is bound to those introns in vivo. RNC1 functions both together with and independently of previously described chloroplast splicing factors.
Bencivenga, Stefano
- You have accessRestricted AccessGenetic and Molecular Interactions between BELL1 and MADS Box Factors Support Ovule Development in ArabidopsisVittoria Brambilla, Raffaella Battaglia, Monica Colombo, Simona Masiero, Stefano Bencivenga, Martin M. Kater, Lucia ColomboPlant Cell Aug 2007, 19 (8) 2544-2556; DOI: https://doi.org/10.1105/tpc.107.051797
Ovule development requires a correct balance of factors determining ovule and carpel identity. It is shown that this balance is obtained by complex formation between BELL1 and AGAMOUS. Furthermore, ovule differentiation requires the regulation of the stem cell maintenance gene WUSCHEL, the repression of which is predominantly maintained by BELL1 during ovule development.
Bevan, Michael W.
- You have accessRestricted AccessSignaling from an Altered Cell Wall to the Nucleus Mediates Sugar-Responsive Growth and Development in Arabidopsis thalianaYunhai Li, Caroline Smith, Fiona Corke, Leiying Zheng, Zara Merali, Peter Ryden, Paul Derbyshire, Keith Waldron, Michael W. BevanPlant Cell Aug 2007, 19 (8) 2500-2515; DOI: https://doi.org/10.1105/tpc.106.049965
Arabidopsis HIGH SUGAR RESPONSE8 (HSR8) is found to be allelic to the MUR4 gene involved in arabinose synthesis. Genetic analyses show that nuclear-localized Pleiotropic Regulatory Locus1 (PRL1) is required for enhanced sugar responses in hsr8 mutant plants and reveal a pathway through PRL1 that signals changes in the cell wall to alter gene expression and sugar-responsive metabolic and developmental changes.
Bhalerao, Rishikesh P.
- You have accessRestricted AccessA Molecular Timetable for Apical Bud Formation and Dormancy Induction in PoplarTom Ruttink, Matthias Arend, Kris Morreel, Véronique Storme, Stephane Rombauts, Jörg Fromm, Rishikesh P. Bhalerao, Wout Boerjan, Antje RohdePlant Cell Aug 2007, 19 (8) 2370-2390; DOI: https://doi.org/10.1105/tpc.107.052811
The transition from growth to dormancy is part of the seasonal growth cycle in perennial plants. In a systems biology approach involving transcriptome, metabolome, and electron microscopy analyses, autumnal bud development is dissected into its molecular programs. A comparative approach identified common genes for growth-to-dormancy transitions across different plant organs.
Blancaflor, Elison B.
- Open AccessN-Acylethanolamine Metabolism Interacts with Abscisic Acid Signaling in Arabidopsis thaliana SeedlingsNeal D. Teaster, Christy M. Motes, Yuhong Tang, William C. Wiant, Matthew Q. Cotter, Yuh-Shuh Wang, Aruna Kilaru, Barney J. Venables, Karl H. Hasenstein, Gabriel Gonzalez, Elison B. Blancaflor, Kent D. ChapmanPlant Cell Aug 2007, 19 (8) 2454-2469; DOI: https://doi.org/10.1105/tpc.106.048702
N-acylethanolamines (NAEs) are important lipid mediators in the endocannabinoid signaling pathway, which influences a variety of physiological processes in vertebrates. This work indicates that NAEs, which are also endogenous metabolites in plants, act in concert with abscisic acid in the negative regulation of seed germination and early seedling establishment.
Boerjan, Wout
- You have accessRestricted AccessA Molecular Timetable for Apical Bud Formation and Dormancy Induction in PoplarTom Ruttink, Matthias Arend, Kris Morreel, Véronique Storme, Stephane Rombauts, Jörg Fromm, Rishikesh P. Bhalerao, Wout Boerjan, Antje RohdePlant Cell Aug 2007, 19 (8) 2370-2390; DOI: https://doi.org/10.1105/tpc.107.052811
The transition from growth to dormancy is part of the seasonal growth cycle in perennial plants. In a systems biology approach involving transcriptome, metabolome, and electron microscopy analyses, autumnal bud development is dissected into its molecular programs. A comparative approach identified common genes for growth-to-dormancy transitions across different plant organs.
Bonner, Eric R.
- You have accessRestricted AccessThiol-Based Regulation of Redox-Active Glutamate-Cysteine Ligase from Arabidopsis thalianaLeslie M. Hicks, Rebecca E. Cahoon, Eric R. Bonner, Rebecca S. Rivard, Jeanne Sheffield, Joseph M. JezPlant Cell Aug 2007, 19 (8) 2653-2661; DOI: https://doi.org/10.1105/tpc.107.052597
This work employs mass spectrometry and site-directed mutagenesis to examine the redox response of Arabidopsis glutamate-cysteine ligase (GCL), which catalyzes the first step in glutathione biosynthesis, and shows that thiol-based regulation of GCL provides a posttranslational mechanism for modulating enzyme activity in response to the in vivo redox environment.
Bos, Jorunn
- You have accessRestricted AccessAdaptive Evolution Has Targeted the C-Terminal Domain of the RXLR Effectors of Plant Pathogenic OomycetesJoe Win, William Morgan, Jorunn Bos, Ksenia V. Krasileva, Liliana M. Cano, Angela Chaparro-Garcia, Randa Ammar, Brian J. Staskawicz, Sophien KamounPlant Cell Aug 2007, 19 (8) 2349-2369; DOI: https://doi.org/10.1105/tpc.107.051037
The RXLR effectors of plant pathogenic oomycetes are shown to be under adaptive selection. Positive selection has acted for the most part on the C-terminal region consistent with the view that RXLR effectors are modular proteins, with the C-terminal domain dedicated to modulating host defenses inside plant cells.
Brambilla, Vittoria
- You have accessRestricted AccessGenetic and Molecular Interactions between BELL1 and MADS Box Factors Support Ovule Development in ArabidopsisVittoria Brambilla, Raffaella Battaglia, Monica Colombo, Simona Masiero, Stefano Bencivenga, Martin M. Kater, Lucia ColomboPlant Cell Aug 2007, 19 (8) 2544-2556; DOI: https://doi.org/10.1105/tpc.107.051797
Ovule development requires a correct balance of factors determining ovule and carpel identity. It is shown that this balance is obtained by complex formation between BELL1 and AGAMOUS. Furthermore, ovule differentiation requires the regulation of the stem cell maintenance gene WUSCHEL, the repression of which is predominantly maintained by BELL1 during ovule development.
Brooks, Eric
- You have accessRestricted AccessSowing the Seeds of Dialogue: Public Engagement through Plant ScienceDavid Lally, Eric Brooks, Frans E. Tax, Erin L. DolanPlant Cell Aug 2007, 19 (8) 2311-2319; DOI: https://doi.org/10.1105/tpc.107.053587
Burch, Adrien Y.
- You have accessRestricted AccessThe Arabidopsis Transcription Factor MYB77 Modulates Auxin Signal TransductionRyoung Shin, Adrien Y. Burch, Kari A. Huppert, Shiv B. Tiwari, Angus S. Murphy, Tom J. Guilfoyle, Daniel P. SchachtmanPlant Cell Aug 2007, 19 (8) 2440-2453; DOI: https://doi.org/10.1105/tpc.107.050963
This study provides new insight into the regulation of auxin-responsive gene expression in plant cells. Biochemical and genetic analyses show that MYB77 interacts with auxin response factors (ARFs) to modulate auxin-responsive gene expression affecting lateral root growth under low potassium conditions.
C
Cahoon, Rebecca E.
- You have accessRestricted AccessThiol-Based Regulation of Redox-Active Glutamate-Cysteine Ligase from Arabidopsis thalianaLeslie M. Hicks, Rebecca E. Cahoon, Eric R. Bonner, Rebecca S. Rivard, Jeanne Sheffield, Joseph M. JezPlant Cell Aug 2007, 19 (8) 2653-2661; DOI: https://doi.org/10.1105/tpc.107.052597
This work employs mass spectrometry and site-directed mutagenesis to examine the redox response of Arabidopsis glutamate-cysteine ligase (GCL), which catalyzes the first step in glutathione biosynthesis, and shows that thiol-based regulation of GCL provides a posttranslational mechanism for modulating enzyme activity in response to the in vivo redox environment.
Cano, Liliana M.
- You have accessRestricted AccessAdaptive Evolution Has Targeted the C-Terminal Domain of the RXLR Effectors of Plant Pathogenic OomycetesJoe Win, William Morgan, Jorunn Bos, Ksenia V. Krasileva, Liliana M. Cano, Angela Chaparro-Garcia, Randa Ammar, Brian J. Staskawicz, Sophien KamounPlant Cell Aug 2007, 19 (8) 2349-2369; DOI: https://doi.org/10.1105/tpc.107.051037
The RXLR effectors of plant pathogenic oomycetes are shown to be under adaptive selection. Positive selection has acted for the most part on the C-terminal region consistent with the view that RXLR effectors are modular proteins, with the C-terminal domain dedicated to modulating host defenses inside plant cells.
Chaparro-Garcia, Angela
- You have accessRestricted AccessAdaptive Evolution Has Targeted the C-Terminal Domain of the RXLR Effectors of Plant Pathogenic OomycetesJoe Win, William Morgan, Jorunn Bos, Ksenia V. Krasileva, Liliana M. Cano, Angela Chaparro-Garcia, Randa Ammar, Brian J. Staskawicz, Sophien KamounPlant Cell Aug 2007, 19 (8) 2349-2369; DOI: https://doi.org/10.1105/tpc.107.051037
The RXLR effectors of plant pathogenic oomycetes are shown to be under adaptive selection. Positive selection has acted for the most part on the C-terminal region consistent with the view that RXLR effectors are modular proteins, with the C-terminal domain dedicated to modulating host defenses inside plant cells.
Chapman, Kent D.
- Open AccessN-Acylethanolamine Metabolism Interacts with Abscisic Acid Signaling in Arabidopsis thaliana SeedlingsNeal D. Teaster, Christy M. Motes, Yuhong Tang, William C. Wiant, Matthew Q. Cotter, Yuh-Shuh Wang, Aruna Kilaru, Barney J. Venables, Karl H. Hasenstein, Gabriel Gonzalez, Elison B. Blancaflor, Kent D. ChapmanPlant Cell Aug 2007, 19 (8) 2454-2469; DOI: https://doi.org/10.1105/tpc.106.048702
N-acylethanolamines (NAEs) are important lipid mediators in the endocannabinoid signaling pathway, which influences a variety of physiological processes in vertebrates. This work indicates that NAEs, which are also endogenous metabolites in plants, act in concert with abscisic acid in the negative regulation of seed germination and early seedling establishment.
Chen, Jyh-Long
- You have accessRestricted AccessThe SnRK1A Protein Kinase Plays a Key Role in Sugar Signaling during Germination and Seedling Growth of RiceChung-An Lu, Chih-Cheng Lin, Kuo-Wei Lee, Jyh-Long Chen, Li-Fen Huang, Shin-Lon Ho, Hsin-Ju Liu, Yue-Ie Hsing, Su-May YuPlant Cell Aug 2007, 19 (8) 2484-2499; DOI: https://doi.org/10.1105/tpc.105.037887
This work demonstrates a functional link between the SnRK1A protein kinase and the MYBS1 transcription factor as essential components in the sugar signaling pathway regulating the α-amylase gene promoter. The results provide new insight into mechanisms of sugar regulation and the physiological relevance of SnRK1A in germination and seedling growth.
Cheng, Youfa
- You have accessRestricted AccessAuxin Synthesized by the YUCCA Flavin Monooxygenases Is Essential for Embryogenesis and Leaf Formation in ArabidopsisYoufa Cheng, Xinhua Dai, Yunde ZhaoPlant Cell Aug 2007, 19 (8) 2430-2439; DOI: https://doi.org/10.1105/tpc.107.053009
Genetic analysis of various combinations of yuc mutants and polar auxin transport mutants pin1 and aux1 establish that auxin synthesized by the YUC flavin monooxygenases is essential for the establishment of the basal body region during embryogenesis and the formation of embryonic and postembryonic organs.
Chételat, Aurore
- Open AccessA Downstream Mediator in the Growth Repression Limb of the Jasmonate PathwayYuanxin Yan, Stéphanie Stolz, Aurore Chételat, Philippe Reymond, Marco Pagni, Lucie Dubugnon, Edward E. FarmerPlant Cell Aug 2007, 19 (8) 2470-2483; DOI: https://doi.org/10.1105/tpc.107.050708
Gain- and loss-of-function analyses coupled with physiological assays demonstrate that JASMONATE ASSOCIATED1 acts as a repressor of jasmonic acid–regulated growth retardation.
Chua, Nam-Hai
- You have accessRestricted AccessTargeted Degradation of PSEUDO-RESPONSE REGULATOR5 by an SCFZTL Complex Regulates Clock Function and Photomorphogenesis in Arabidopsis thalianaTakatoshi Kiba, Rossana Henriques, Hitoshi Sakakibara, Nam-Hai ChuaPlant Cell Aug 2007, 19 (8) 2516-2530; DOI: https://doi.org/10.1105/tpc.107.053033
Protein degradation regulates the Arabidopsis circadian clock. It is shown that the F-box protein ZEITLUPE mediates degradation of PRR5, a putative component of the central oscillator.
Colombo, Lucia
- You have accessRestricted AccessGenetic and Molecular Interactions between BELL1 and MADS Box Factors Support Ovule Development in ArabidopsisVittoria Brambilla, Raffaella Battaglia, Monica Colombo, Simona Masiero, Stefano Bencivenga, Martin M. Kater, Lucia ColomboPlant Cell Aug 2007, 19 (8) 2544-2556; DOI: https://doi.org/10.1105/tpc.107.051797
Ovule development requires a correct balance of factors determining ovule and carpel identity. It is shown that this balance is obtained by complex formation between BELL1 and AGAMOUS. Furthermore, ovule differentiation requires the regulation of the stem cell maintenance gene WUSCHEL, the repression of which is predominantly maintained by BELL1 during ovule development.
Colombo, Monica
- You have accessRestricted AccessGenetic and Molecular Interactions between BELL1 and MADS Box Factors Support Ovule Development in ArabidopsisVittoria Brambilla, Raffaella Battaglia, Monica Colombo, Simona Masiero, Stefano Bencivenga, Martin M. Kater, Lucia ColomboPlant Cell Aug 2007, 19 (8) 2544-2556; DOI: https://doi.org/10.1105/tpc.107.051797
Ovule development requires a correct balance of factors determining ovule and carpel identity. It is shown that this balance is obtained by complex formation between BELL1 and AGAMOUS. Furthermore, ovule differentiation requires the regulation of the stem cell maintenance gene WUSCHEL, the repression of which is predominantly maintained by BELL1 during ovule development.
Cooke, Amy M.
- You have accessRestricted AccessA Ribonuclease III Domain Protein Functions in Group II Intron Splicing in Maize ChloroplastsKenneth P. Watkins, Tiffany S. Kroeger, Amy M. Cooke, Rosalind E. Williams-Carrier, Giulia Friso, Susan E. Belcher, Klaas J. van Wijk, Alice BarkanPlant Cell Aug 2007, 19 (8) 2606-2623; DOI: https://doi.org/10.1105/tpc.107.053736
Chloroplasts harbor numerous group II introns, ribozymes whose activity is facilitated by proteins in vivo. This study shows that RNC1, a protein with catalytically inactive RNAse III domains, promotes the splicing of many group II introns in chloroplasts and is bound to those introns in vivo. RNC1 functions both together with and independently of previously described chloroplast splicing factors.
Corke, Fiona
- You have accessRestricted AccessSignaling from an Altered Cell Wall to the Nucleus Mediates Sugar-Responsive Growth and Development in Arabidopsis thalianaYunhai Li, Caroline Smith, Fiona Corke, Leiying Zheng, Zara Merali, Peter Ryden, Paul Derbyshire, Keith Waldron, Michael W. BevanPlant Cell Aug 2007, 19 (8) 2500-2515; DOI: https://doi.org/10.1105/tpc.106.049965
Arabidopsis HIGH SUGAR RESPONSE8 (HSR8) is found to be allelic to the MUR4 gene involved in arabinose synthesis. Genetic analyses show that nuclear-localized Pleiotropic Regulatory Locus1 (PRL1) is required for enhanced sugar responses in hsr8 mutant plants and reveal a pathway through PRL1 that signals changes in the cell wall to alter gene expression and sugar-responsive metabolic and developmental changes.
Cotter, Matthew Q.
- Open AccessN-Acylethanolamine Metabolism Interacts with Abscisic Acid Signaling in Arabidopsis thaliana SeedlingsNeal D. Teaster, Christy M. Motes, Yuhong Tang, William C. Wiant, Matthew Q. Cotter, Yuh-Shuh Wang, Aruna Kilaru, Barney J. Venables, Karl H. Hasenstein, Gabriel Gonzalez, Elison B. Blancaflor, Kent D. ChapmanPlant Cell Aug 2007, 19 (8) 2454-2469; DOI: https://doi.org/10.1105/tpc.106.048702
N-acylethanolamines (NAEs) are important lipid mediators in the endocannabinoid signaling pathway, which influences a variety of physiological processes in vertebrates. This work indicates that NAEs, which are also endogenous metabolites in plants, act in concert with abscisic acid in the negative regulation of seed germination and early seedling establishment.
D
Dai, Xinhua
- You have accessRestricted AccessAuxin Synthesized by the YUCCA Flavin Monooxygenases Is Essential for Embryogenesis and Leaf Formation in ArabidopsisYoufa Cheng, Xinhua Dai, Yunde ZhaoPlant Cell Aug 2007, 19 (8) 2430-2439; DOI: https://doi.org/10.1105/tpc.107.053009
Genetic analysis of various combinations of yuc mutants and polar auxin transport mutants pin1 and aux1 establish that auxin synthesized by the YUC flavin monooxygenases is essential for the establishment of the basal body region during embryogenesis and the formation of embryonic and postembryonic organs.
Dam, Thao
- You have accessRestricted AccessThe Maize Floury1 Gene Encodes a Novel Endoplasmic Reticulum Protein Involved in Zein Protein Body FormationDavid R. Holding, Marisa S. Otegui, Bailin Li, Robert B. Meeley, Thao Dam, Brenda G. Hunter, Rudolf Jung, Brian A. LarkinsPlant Cell Aug 2007, 19 (8) 2569-2582; DOI: https://doi.org/10.1105/tpc.107.053538
This work reports the cloning of maize Floury1 (Fl1), which encodes a novel zein protein body membrane protein with three predicted transmembrane domains and a C-terminal plant-specific domain of unknown function. It is shown that FL1 likely participates in protein body formation by facilitating the localization of 22-kD α-zein and that this is essential for the formation of vitreous endosperm.
Derbyshire, Paul
- You have accessRestricted AccessSignaling from an Altered Cell Wall to the Nucleus Mediates Sugar-Responsive Growth and Development in Arabidopsis thalianaYunhai Li, Caroline Smith, Fiona Corke, Leiying Zheng, Zara Merali, Peter Ryden, Paul Derbyshire, Keith Waldron, Michael W. BevanPlant Cell Aug 2007, 19 (8) 2500-2515; DOI: https://doi.org/10.1105/tpc.106.049965
Arabidopsis HIGH SUGAR RESPONSE8 (HSR8) is found to be allelic to the MUR4 gene involved in arabinose synthesis. Genetic analyses show that nuclear-localized Pleiotropic Regulatory Locus1 (PRL1) is required for enhanced sugar responses in hsr8 mutant plants and reveal a pathway through PRL1 that signals changes in the cell wall to alter gene expression and sugar-responsive metabolic and developmental changes.
Dolan, Erin L.
- You have accessRestricted AccessSowing the Seeds of Dialogue: Public Engagement through Plant ScienceDavid Lally, Eric Brooks, Frans E. Tax, Erin L. DolanPlant Cell Aug 2007, 19 (8) 2311-2319; DOI: https://doi.org/10.1105/tpc.107.053587
Drews, Gary N.
- You have accessRestricted AccessMYB98 Positively Regulates a Battery of Synergid-Expressed Genes Encoding Filiform Apparatus–Localized ProteinsJayson A. Punwani, David S. Rabiger, Gary N. DrewsPlant Cell Aug 2007, 19 (8) 2557-2568; DOI: https://doi.org/10.1105/tpc.107.052076
MYB98 encodes an R2R3-MYB transcription factor required for pollen tube guidance and filiform apparatus (FA) formation by the synergid cells of the female gametophyte. This study identifies 16 MYB98-regulated genes, most of which encode Cys-rich proteins. Many of the encoded proteins are secreted into the FA, suggesting a role in FA formation or pollen tube guidance.
Dubugnon, Lucie
- Open AccessA Downstream Mediator in the Growth Repression Limb of the Jasmonate PathwayYuanxin Yan, Stéphanie Stolz, Aurore Chételat, Philippe Reymond, Marco Pagni, Lucie Dubugnon, Edward E. FarmerPlant Cell Aug 2007, 19 (8) 2470-2483; DOI: https://doi.org/10.1105/tpc.107.050708
Gain- and loss-of-function analyses coupled with physiological assays demonstrate that JASMONATE ASSOCIATED1 acts as a repressor of jasmonic acid–regulated growth retardation.
E
Eckardt, Nancy A.
- You have accessRestricted AccessElucidating the Function of Synergid Cells: A Regulatory Role for MYB98Nancy A. EckardtPlant Cell Aug 2007, 19 (8) 2320-2321; DOI: https://doi.org/10.1105/tpc.107.055640
- You have accessRestricted AccessApical Bud Formation and Dormancy Induction in PoplarNancy A. EckardtPlant Cell Aug 2007, 19 (8) 2322; DOI: https://doi.org/10.1105/tpc.107.190810
- You have accessRestricted AccessAdaptive Evolution among Plant Pathogenic Oomycte RXLR Effector GenesNancy A. EckardtPlant Cell Aug 2007, 19 (8) 2322; DOI: https://doi.org/10.1105/tpc.107.190811
Ecker, Joseph R.
- You have accessRestricted AccessA WD40 Domain Cyclophilin Interacts with Histone H3 and Functions in Gene Repression and Organogenesis in ArabidopsisHong Li, Zengyong He, Guihua Lu, Sung Chul Lee, Jose Alonso, Joseph R. Ecker, Sheng LuanPlant Cell Aug 2007, 19 (8) 2403-2416; DOI: https://doi.org/10.1105/tpc.107.053579
In this study, the WD40-containing cyclophilin CYP71 is identified as an essential factor for normal development in Arabidopsis. CYP71 physically interacts with histone H3 and regulates the level of histone methylation of target loci, thus affecting gene expression. CYP71 is conserved among eukaryotes and may serve as a ubiquitous chromatin remodeling factor involved in epigenetic silencing.
Eiguchi, Mitsugu
- You have accessRestricted AccessA Germ Cell–Specific Gene of the ARGONAUTE Family Is Essential for the Progression of Premeiotic Mitosis and Meiosis during Sporogenesis in RiceKen-Ichi Nonomura, Akane Morohoshi, Mutsuko Nakano, Mitsugu Eiguchi, Akio Miyao, Hirohiko Hirochika, Nori KurataPlant Cell Aug 2007, 19 (8) 2583-2594; DOI: https://doi.org/10.1105/tpc.107.053199
Cytological analyses of retrotransposon-tagged lines show that the rice MEL1 gene of the ARGONAUTE family plays important roles in germ cell mitosis, faithful meiosis progression, and maintenance of copy number of rDNA repeats.
F
Farmer, Edward E.
- Open AccessA Downstream Mediator in the Growth Repression Limb of the Jasmonate PathwayYuanxin Yan, Stéphanie Stolz, Aurore Chételat, Philippe Reymond, Marco Pagni, Lucie Dubugnon, Edward E. FarmerPlant Cell Aug 2007, 19 (8) 2470-2483; DOI: https://doi.org/10.1105/tpc.107.050708
Gain- and loss-of-function analyses coupled with physiological assays demonstrate that JASMONATE ASSOCIATED1 acts as a repressor of jasmonic acid–regulated growth retardation.
Friso, Giulia
- You have accessRestricted AccessA Ribonuclease III Domain Protein Functions in Group II Intron Splicing in Maize ChloroplastsKenneth P. Watkins, Tiffany S. Kroeger, Amy M. Cooke, Rosalind E. Williams-Carrier, Giulia Friso, Susan E. Belcher, Klaas J. van Wijk, Alice BarkanPlant Cell Aug 2007, 19 (8) 2606-2623; DOI: https://doi.org/10.1105/tpc.107.053736
Chloroplasts harbor numerous group II introns, ribozymes whose activity is facilitated by proteins in vivo. This study shows that RNC1, a protein with catalytically inactive RNAse III domains, promotes the splicing of many group II introns in chloroplasts and is bound to those introns in vivo. RNC1 functions both together with and independently of previously described chloroplast splicing factors.
Fromm, Jörg
- You have accessRestricted AccessA Molecular Timetable for Apical Bud Formation and Dormancy Induction in PoplarTom Ruttink, Matthias Arend, Kris Morreel, Véronique Storme, Stephane Rombauts, Jörg Fromm, Rishikesh P. Bhalerao, Wout Boerjan, Antje RohdePlant Cell Aug 2007, 19 (8) 2370-2390; DOI: https://doi.org/10.1105/tpc.107.052811
The transition from growth to dormancy is part of the seasonal growth cycle in perennial plants. In a systems biology approach involving transcriptome, metabolome, and electron microscopy analyses, autumnal bud development is dissected into its molecular programs. A comparative approach identified common genes for growth-to-dormancy transitions across different plant organs.
Fujiwara, Toru
- You have accessRestricted AccessCell-Type Specificity of the Expression of Os BOR1, a Rice Efflux Boron Transporter Gene, Is Regulated in Response to Boron Availability for Efficient Boron Uptake and Xylem LoadingYuko Nakagawa, Hideki Hanaoka, Masaharu Kobayashi, Kazumaru Miyoshi, Kyoko Miwa, Toru FujiwaraPlant Cell Aug 2007, 19 (8) 2624-2635; DOI: https://doi.org/10.1105/tpc.106.049015
Os BOR1 is a plasma membrane–localized efflux boron transporter from rice that is essential for xyelm loading of boron. This study shows that the cell-type specificity of Os BOR1 expression depends on the boron status, providing an example of a mineral-nutrient transporter whose tissue-specific expression pattern changes depending on nutritional conditions.
G
Gingerich, Derek J.
- You have accessRestricted AccessLarge-Scale, Lineage-Specific Expansion of a Bric-a-Brac/Tramtrack/Broad Complex Ubiquitin-Ligase Gene Family in RiceDerek J. Gingerich, Kousuke Hanada, Shin-Han Shiu, Richard D. VierstraPlant Cell Aug 2007, 19 (8) 2329-2348; DOI: https://doi.org/10.1105/tpc.107.051300
BTB genes encode E3 ubiquitin-ligase target recognition subunits. This study characterizes the 149-member BTB superfamily in rice and compares it to the 80-member BTB superfamily in Arabidopsis. The rice MATH-BTB family has undergone dramatic expansion accompanied by increased sequence diversification and reduced purifying selection. A possible role in innate immunity is presented.
Gonzalez, Gabriel
- Open AccessN-Acylethanolamine Metabolism Interacts with Abscisic Acid Signaling in Arabidopsis thaliana SeedlingsNeal D. Teaster, Christy M. Motes, Yuhong Tang, William C. Wiant, Matthew Q. Cotter, Yuh-Shuh Wang, Aruna Kilaru, Barney J. Venables, Karl H. Hasenstein, Gabriel Gonzalez, Elison B. Blancaflor, Kent D. ChapmanPlant Cell Aug 2007, 19 (8) 2454-2469; DOI: https://doi.org/10.1105/tpc.106.048702
N-acylethanolamines (NAEs) are important lipid mediators in the endocannabinoid signaling pathway, which influences a variety of physiological processes in vertebrates. This work indicates that NAEs, which are also endogenous metabolites in plants, act in concert with abscisic acid in the negative regulation of seed germination and early seedling establishment.
Guilfoyle, Tom J.
- You have accessRestricted AccessThe Arabidopsis Transcription Factor MYB77 Modulates Auxin Signal TransductionRyoung Shin, Adrien Y. Burch, Kari A. Huppert, Shiv B. Tiwari, Angus S. Murphy, Tom J. Guilfoyle, Daniel P. SchachtmanPlant Cell Aug 2007, 19 (8) 2440-2453; DOI: https://doi.org/10.1105/tpc.107.050963
This study provides new insight into the regulation of auxin-responsive gene expression in plant cells. Biochemical and genetic analyses show that MYB77 interacts with auxin response factors (ARFs) to modulate auxin-responsive gene expression affecting lateral root growth under low potassium conditions.
Gurr, Sarah J.
- Open AccessMagnaporthe grisea Cutinase2 Mediates Appressorium Differentiation and Host Penetration and Is Required for Full VirulencePari Skamnioti, Sarah J. GurrPlant Cell Aug 2007, 19 (8) 2674-2689; DOI: https://doi.org/10.1105/tpc.107.051219
The rice blast fungus employs secreted cutinase2 (Cut2) for surface sensing, germling differentiation, and host penetration. The cut2 mutant displays anomalous morphogenesis, forms fewer penetration pegs, and is poorly pathogenic. Developmental and pathogenicity defects are restored by synthetic cutin monomers, cAMP and DAG. Cut2 is an upstream activator of cAMP/PKA and DAG/PKC signaling pathways.
H
Hanada, Kousuke
- You have accessRestricted AccessLarge-Scale, Lineage-Specific Expansion of a Bric-a-Brac/Tramtrack/Broad Complex Ubiquitin-Ligase Gene Family in RiceDerek J. Gingerich, Kousuke Hanada, Shin-Han Shiu, Richard D. VierstraPlant Cell Aug 2007, 19 (8) 2329-2348; DOI: https://doi.org/10.1105/tpc.107.051300
BTB genes encode E3 ubiquitin-ligase target recognition subunits. This study characterizes the 149-member BTB superfamily in rice and compares it to the 80-member BTB superfamily in Arabidopsis. The rice MATH-BTB family has undergone dramatic expansion accompanied by increased sequence diversification and reduced purifying selection. A possible role in innate immunity is presented.
Hanaoka, Hideki
- You have accessRestricted AccessCell-Type Specificity of the Expression of Os BOR1, a Rice Efflux Boron Transporter Gene, Is Regulated in Response to Boron Availability for Efficient Boron Uptake and Xylem LoadingYuko Nakagawa, Hideki Hanaoka, Masaharu Kobayashi, Kazumaru Miyoshi, Kyoko Miwa, Toru FujiwaraPlant Cell Aug 2007, 19 (8) 2624-2635; DOI: https://doi.org/10.1105/tpc.106.049015
Os BOR1 is a plasma membrane–localized efflux boron transporter from rice that is essential for xyelm loading of boron. This study shows that the cell-type specificity of Os BOR1 expression depends on the boron status, providing an example of a mineral-nutrient transporter whose tissue-specific expression pattern changes depending on nutritional conditions.
Hasenstein, Karl H.
- Open AccessN-Acylethanolamine Metabolism Interacts with Abscisic Acid Signaling in Arabidopsis thaliana SeedlingsNeal D. Teaster, Christy M. Motes, Yuhong Tang, William C. Wiant, Matthew Q. Cotter, Yuh-Shuh Wang, Aruna Kilaru, Barney J. Venables, Karl H. Hasenstein, Gabriel Gonzalez, Elison B. Blancaflor, Kent D. ChapmanPlant Cell Aug 2007, 19 (8) 2454-2469; DOI: https://doi.org/10.1105/tpc.106.048702
N-acylethanolamines (NAEs) are important lipid mediators in the endocannabinoid signaling pathway, which influences a variety of physiological processes in vertebrates. This work indicates that NAEs, which are also endogenous metabolites in plants, act in concert with abscisic acid in the negative regulation of seed germination and early seedling establishment.
Hattori, Sayoko
- You have accessRestricted AccessArabidopsis TRANSPARENT TESTA GLABRA2 Is Directly Regulated by R2R3 MYB Transcription Factors and Is Involved in Regulation of GLABRA2 Transcription in Epidermal DifferentiationTetsuya Ishida, Sayoko Hattori, Ryosuke Sano, Kayoko Inoue, Yumiko Shirano, Hiroaki Hayashi, Daisuke Shibata, Shusei Sato, Tomohiko Kato, Satoshi Tabata, Kiyotaka Okada, Takuji WadaPlant Cell Aug 2007, 19 (8) 2531-2543; DOI: https://doi.org/10.1105/tpc.107.052274
This work demonstrates that the WRKY transcription factor TTG2 functions in a regulatory cascade in the formation of trichomes and root hair. Complexes containing R2R3 MYB and bHLH transcription factors regulate the expression of TTG2, and TTG2 acts redundantly with these complexes to regulate GL2, which encodes a homeodomain protein that promotes formation of trichomes and root hairless cells.
Hayashi, Hiroaki
- You have accessRestricted AccessArabidopsis TRANSPARENT TESTA GLABRA2 Is Directly Regulated by R2R3 MYB Transcription Factors and Is Involved in Regulation of GLABRA2 Transcription in Epidermal DifferentiationTetsuya Ishida, Sayoko Hattori, Ryosuke Sano, Kayoko Inoue, Yumiko Shirano, Hiroaki Hayashi, Daisuke Shibata, Shusei Sato, Tomohiko Kato, Satoshi Tabata, Kiyotaka Okada, Takuji WadaPlant Cell Aug 2007, 19 (8) 2531-2543; DOI: https://doi.org/10.1105/tpc.107.052274
This work demonstrates that the WRKY transcription factor TTG2 functions in a regulatory cascade in the formation of trichomes and root hair. Complexes containing R2R3 MYB and bHLH transcription factors regulate the expression of TTG2, and TTG2 acts redundantly with these complexes to regulate GL2, which encodes a homeodomain protein that promotes formation of trichomes and root hairless cells.
He, Zengyong
- You have accessRestricted AccessA WD40 Domain Cyclophilin Interacts with Histone H3 and Functions in Gene Repression and Organogenesis in ArabidopsisHong Li, Zengyong He, Guihua Lu, Sung Chul Lee, Jose Alonso, Joseph R. Ecker, Sheng LuanPlant Cell Aug 2007, 19 (8) 2403-2416; DOI: https://doi.org/10.1105/tpc.107.053579
In this study, the WD40-containing cyclophilin CYP71 is identified as an essential factor for normal development in Arabidopsis. CYP71 physically interacts with histone H3 and regulates the level of histone methylation of target loci, thus affecting gene expression. CYP71 is conserved among eukaryotes and may serve as a ubiquitous chromatin remodeling factor involved in epigenetic silencing.
Henriques, Rossana
- You have accessRestricted AccessTargeted Degradation of PSEUDO-RESPONSE REGULATOR5 by an SCFZTL Complex Regulates Clock Function and Photomorphogenesis in Arabidopsis thalianaTakatoshi Kiba, Rossana Henriques, Hitoshi Sakakibara, Nam-Hai ChuaPlant Cell Aug 2007, 19 (8) 2516-2530; DOI: https://doi.org/10.1105/tpc.107.053033
Protein degradation regulates the Arabidopsis circadian clock. It is shown that the F-box protein ZEITLUPE mediates degradation of PRR5, a putative component of the central oscillator.
Hicks, Leslie M.
- You have accessRestricted AccessThiol-Based Regulation of Redox-Active Glutamate-Cysteine Ligase from Arabidopsis thalianaLeslie M. Hicks, Rebecca E. Cahoon, Eric R. Bonner, Rebecca S. Rivard, Jeanne Sheffield, Joseph M. JezPlant Cell Aug 2007, 19 (8) 2653-2661; DOI: https://doi.org/10.1105/tpc.107.052597
This work employs mass spectrometry and site-directed mutagenesis to examine the redox response of Arabidopsis glutamate-cysteine ligase (GCL), which catalyzes the first step in glutathione biosynthesis, and shows that thiol-based regulation of GCL provides a posttranslational mechanism for modulating enzyme activity in response to the in vivo redox environment.
Hirochika, Hirohiko
- You have accessRestricted AccessA Germ Cell–Specific Gene of the ARGONAUTE Family Is Essential for the Progression of Premeiotic Mitosis and Meiosis during Sporogenesis in RiceKen-Ichi Nonomura, Akane Morohoshi, Mutsuko Nakano, Mitsugu Eiguchi, Akio Miyao, Hirohiko Hirochika, Nori KurataPlant Cell Aug 2007, 19 (8) 2583-2594; DOI: https://doi.org/10.1105/tpc.107.053199
Cytological analyses of retrotransposon-tagged lines show that the rice MEL1 gene of the ARGONAUTE family plays important roles in germ cell mitosis, faithful meiosis progression, and maintenance of copy number of rDNA repeats.
Ho, Shin-Lon
- You have accessRestricted AccessThe SnRK1A Protein Kinase Plays a Key Role in Sugar Signaling during Germination and Seedling Growth of RiceChung-An Lu, Chih-Cheng Lin, Kuo-Wei Lee, Jyh-Long Chen, Li-Fen Huang, Shin-Lon Ho, Hsin-Ju Liu, Yue-Ie Hsing, Su-May YuPlant Cell Aug 2007, 19 (8) 2484-2499; DOI: https://doi.org/10.1105/tpc.105.037887
This work demonstrates a functional link between the SnRK1A protein kinase and the MYBS1 transcription factor as essential components in the sugar signaling pathway regulating the α-amylase gene promoter. The results provide new insight into mechanisms of sugar regulation and the physiological relevance of SnRK1A in germination and seedling growth.
Holding, David R.
- You have accessRestricted AccessThe Maize Floury1 Gene Encodes a Novel Endoplasmic Reticulum Protein Involved in Zein Protein Body FormationDavid R. Holding, Marisa S. Otegui, Bailin Li, Robert B. Meeley, Thao Dam, Brenda G. Hunter, Rudolf Jung, Brian A. LarkinsPlant Cell Aug 2007, 19 (8) 2569-2582; DOI: https://doi.org/10.1105/tpc.107.053538
This work reports the cloning of maize Floury1 (Fl1), which encodes a novel zein protein body membrane protein with three predicted transmembrane domains and a C-terminal plant-specific domain of unknown function. It is shown that FL1 likely participates in protein body formation by facilitating the localization of 22-kD α-zein and that this is essential for the formation of vitreous endosperm.
Houben, Andreas
- You have accessRestricted AccessEngineered Plant Minichromosomes: A Resurrection of B Chromosomes?Andreas Houben, Ingo SchubertPlant Cell Aug 2007, 19 (8) 2323-2327; DOI: https://doi.org/10.1105/tpc.107.053603
Hsing, Yue-Ie
- You have accessRestricted AccessThe SnRK1A Protein Kinase Plays a Key Role in Sugar Signaling during Germination and Seedling Growth of RiceChung-An Lu, Chih-Cheng Lin, Kuo-Wei Lee, Jyh-Long Chen, Li-Fen Huang, Shin-Lon Ho, Hsin-Ju Liu, Yue-Ie Hsing, Su-May YuPlant Cell Aug 2007, 19 (8) 2484-2499; DOI: https://doi.org/10.1105/tpc.105.037887
This work demonstrates a functional link between the SnRK1A protein kinase and the MYBS1 transcription factor as essential components in the sugar signaling pathway regulating the α-amylase gene promoter. The results provide new insight into mechanisms of sugar regulation and the physiological relevance of SnRK1A in germination and seedling growth.
Huang, Li-Fen
- You have accessRestricted AccessThe SnRK1A Protein Kinase Plays a Key Role in Sugar Signaling during Germination and Seedling Growth of RiceChung-An Lu, Chih-Cheng Lin, Kuo-Wei Lee, Jyh-Long Chen, Li-Fen Huang, Shin-Lon Ho, Hsin-Ju Liu, Yue-Ie Hsing, Su-May YuPlant Cell Aug 2007, 19 (8) 2484-2499; DOI: https://doi.org/10.1105/tpc.105.037887
This work demonstrates a functional link between the SnRK1A protein kinase and the MYBS1 transcription factor as essential components in the sugar signaling pathway regulating the α-amylase gene promoter. The results provide new insight into mechanisms of sugar regulation and the physiological relevance of SnRK1A in germination and seedling growth.
Hunter, Brenda G.
- You have accessRestricted AccessThe Maize Floury1 Gene Encodes a Novel Endoplasmic Reticulum Protein Involved in Zein Protein Body FormationDavid R. Holding, Marisa S. Otegui, Bailin Li, Robert B. Meeley, Thao Dam, Brenda G. Hunter, Rudolf Jung, Brian A. LarkinsPlant Cell Aug 2007, 19 (8) 2569-2582; DOI: https://doi.org/10.1105/tpc.107.053538
This work reports the cloning of maize Floury1 (Fl1), which encodes a novel zein protein body membrane protein with three predicted transmembrane domains and a C-terminal plant-specific domain of unknown function. It is shown that FL1 likely participates in protein body formation by facilitating the localization of 22-kD α-zein and that this is essential for the formation of vitreous endosperm.
Huppert, Kari A.
- You have accessRestricted AccessThe Arabidopsis Transcription Factor MYB77 Modulates Auxin Signal TransductionRyoung Shin, Adrien Y. Burch, Kari A. Huppert, Shiv B. Tiwari, Angus S. Murphy, Tom J. Guilfoyle, Daniel P. SchachtmanPlant Cell Aug 2007, 19 (8) 2440-2453; DOI: https://doi.org/10.1105/tpc.107.050963
This study provides new insight into the regulation of auxin-responsive gene expression in plant cells. Biochemical and genetic analyses show that MYB77 interacts with auxin response factors (ARFs) to modulate auxin-responsive gene expression affecting lateral root growth under low potassium conditions.
I
Inoue, Eri
- You have accessRestricted AccessThe Organization of High-Affinity Ammonium Uptake in Arabidopsis Roots Depends on the Spatial Arrangement and Biochemical Properties of AMT1-Type TransportersLixing Yuan, Dominique Loqué, Soichi Kojima, Sabine Rauch, Keiki Ishiyama, Eri Inoue, Hideki Takahashi, Nicolaus von WirénPlant Cell Aug 2007, 19 (8) 2636-2652; DOI: https://doi.org/10.1105/tpc.107.052134
Ammonium uptake across the plasma membrane of plant roots is mediated by AMT-type transporters. By generating triple and quadruple amt mutants in Arabidopsis, this study shows that four individual AMTs that differ in cell type–specific expression and substrate affinity contribute to high-affinity ammonium influx with different nitrogen-dependent transport capacities.
Inoue, Kayoko
- You have accessRestricted AccessArabidopsis TRANSPARENT TESTA GLABRA2 Is Directly Regulated by R2R3 MYB Transcription Factors and Is Involved in Regulation of GLABRA2 Transcription in Epidermal DifferentiationTetsuya Ishida, Sayoko Hattori, Ryosuke Sano, Kayoko Inoue, Yumiko Shirano, Hiroaki Hayashi, Daisuke Shibata, Shusei Sato, Tomohiko Kato, Satoshi Tabata, Kiyotaka Okada, Takuji WadaPlant Cell Aug 2007, 19 (8) 2531-2543; DOI: https://doi.org/10.1105/tpc.107.052274
This work demonstrates that the WRKY transcription factor TTG2 functions in a regulatory cascade in the formation of trichomes and root hair. Complexes containing R2R3 MYB and bHLH transcription factors regulate the expression of TTG2, and TTG2 acts redundantly with these complexes to regulate GL2, which encodes a homeodomain protein that promotes formation of trichomes and root hairless cells.
Ishida, Tetsuya
- You have accessRestricted AccessArabidopsis TRANSPARENT TESTA GLABRA2 Is Directly Regulated by R2R3 MYB Transcription Factors and Is Involved in Regulation of GLABRA2 Transcription in Epidermal DifferentiationTetsuya Ishida, Sayoko Hattori, Ryosuke Sano, Kayoko Inoue, Yumiko Shirano, Hiroaki Hayashi, Daisuke Shibata, Shusei Sato, Tomohiko Kato, Satoshi Tabata, Kiyotaka Okada, Takuji WadaPlant Cell Aug 2007, 19 (8) 2531-2543; DOI: https://doi.org/10.1105/tpc.107.052274
This work demonstrates that the WRKY transcription factor TTG2 functions in a regulatory cascade in the formation of trichomes and root hair. Complexes containing R2R3 MYB and bHLH transcription factors regulate the expression of TTG2, and TTG2 acts redundantly with these complexes to regulate GL2, which encodes a homeodomain protein that promotes formation of trichomes and root hairless cells.
Ishiyama, Keiki
- You have accessRestricted AccessThe Organization of High-Affinity Ammonium Uptake in Arabidopsis Roots Depends on the Spatial Arrangement and Biochemical Properties of AMT1-Type TransportersLixing Yuan, Dominique Loqué, Soichi Kojima, Sabine Rauch, Keiki Ishiyama, Eri Inoue, Hideki Takahashi, Nicolaus von WirénPlant Cell Aug 2007, 19 (8) 2636-2652; DOI: https://doi.org/10.1105/tpc.107.052134
Ammonium uptake across the plasma membrane of plant roots is mediated by AMT-type transporters. By generating triple and quadruple amt mutants in Arabidopsis, this study shows that four individual AMTs that differ in cell type–specific expression and substrate affinity contribute to high-affinity ammonium influx with different nitrogen-dependent transport capacities.
J
Jenkins, Gareth I.
- You have accessRestricted AccessUV-B Promotes Rapid Nuclear Translocation of the Arabidopsis UV-B–Specific Signaling Component UVR8 and Activates Its Function in the NucleusEirini Kaiserli, Gareth I. JenkinsPlant Cell Aug 2007, 19 (8) 2662-2673; DOI: https://doi.org/10.1105/tpc.107.053330
The Arabidopsis protein UVR8 confers UV protection by orchestrating expression of a range of genes. This article shows that UV-B light stimulates the rapid translocation of UVR8 into the nucleus. However, nuclear translocation is not sufficient for UVR8 function; UV-B is additionally required for UVR8 to regulate gene expression in the nucleus.
Jez, Joseph M.
- You have accessRestricted AccessThiol-Based Regulation of Redox-Active Glutamate-Cysteine Ligase from Arabidopsis thalianaLeslie M. Hicks, Rebecca E. Cahoon, Eric R. Bonner, Rebecca S. Rivard, Jeanne Sheffield, Joseph M. JezPlant Cell Aug 2007, 19 (8) 2653-2661; DOI: https://doi.org/10.1105/tpc.107.052597
This work employs mass spectrometry and site-directed mutagenesis to examine the redox response of Arabidopsis glutamate-cysteine ligase (GCL), which catalyzes the first step in glutathione biosynthesis, and shows that thiol-based regulation of GCL provides a posttranslational mechanism for modulating enzyme activity in response to the in vivo redox environment.
Jung, Rudolf
- You have accessRestricted AccessThe Maize Floury1 Gene Encodes a Novel Endoplasmic Reticulum Protein Involved in Zein Protein Body FormationDavid R. Holding, Marisa S. Otegui, Bailin Li, Robert B. Meeley, Thao Dam, Brenda G. Hunter, Rudolf Jung, Brian A. LarkinsPlant Cell Aug 2007, 19 (8) 2569-2582; DOI: https://doi.org/10.1105/tpc.107.053538
This work reports the cloning of maize Floury1 (Fl1), which encodes a novel zein protein body membrane protein with three predicted transmembrane domains and a C-terminal plant-specific domain of unknown function. It is shown that FL1 likely participates in protein body formation by facilitating the localization of 22-kD α-zein and that this is essential for the formation of vitreous endosperm.
K
Kaiserli, Eirini
- You have accessRestricted AccessUV-B Promotes Rapid Nuclear Translocation of the Arabidopsis UV-B–Specific Signaling Component UVR8 and Activates Its Function in the NucleusEirini Kaiserli, Gareth I. JenkinsPlant Cell Aug 2007, 19 (8) 2662-2673; DOI: https://doi.org/10.1105/tpc.107.053330
The Arabidopsis protein UVR8 confers UV protection by orchestrating expression of a range of genes. This article shows that UV-B light stimulates the rapid translocation of UVR8 into the nucleus. However, nuclear translocation is not sufficient for UVR8 function; UV-B is additionally required for UVR8 to regulate gene expression in the nucleus.
Kamoun, Sophien
- You have accessRestricted AccessAdaptive Evolution Has Targeted the C-Terminal Domain of the RXLR Effectors of Plant Pathogenic OomycetesJoe Win, William Morgan, Jorunn Bos, Ksenia V. Krasileva, Liliana M. Cano, Angela Chaparro-Garcia, Randa Ammar, Brian J. Staskawicz, Sophien KamounPlant Cell Aug 2007, 19 (8) 2349-2369; DOI: https://doi.org/10.1105/tpc.107.051037
The RXLR effectors of plant pathogenic oomycetes are shown to be under adaptive selection. Positive selection has acted for the most part on the C-terminal region consistent with the view that RXLR effectors are modular proteins, with the C-terminal domain dedicated to modulating host defenses inside plant cells.
Kater, Martin M.
- You have accessRestricted AccessGenetic and Molecular Interactions between BELL1 and MADS Box Factors Support Ovule Development in ArabidopsisVittoria Brambilla, Raffaella Battaglia, Monica Colombo, Simona Masiero, Stefano Bencivenga, Martin M. Kater, Lucia ColomboPlant Cell Aug 2007, 19 (8) 2544-2556; DOI: https://doi.org/10.1105/tpc.107.051797
Ovule development requires a correct balance of factors determining ovule and carpel identity. It is shown that this balance is obtained by complex formation between BELL1 and AGAMOUS. Furthermore, ovule differentiation requires the regulation of the stem cell maintenance gene WUSCHEL, the repression of which is predominantly maintained by BELL1 during ovule development.
Kato, Tomohiko
- You have accessRestricted AccessArabidopsis TRANSPARENT TESTA GLABRA2 Is Directly Regulated by R2R3 MYB Transcription Factors and Is Involved in Regulation of GLABRA2 Transcription in Epidermal DifferentiationTetsuya Ishida, Sayoko Hattori, Ryosuke Sano, Kayoko Inoue, Yumiko Shirano, Hiroaki Hayashi, Daisuke Shibata, Shusei Sato, Tomohiko Kato, Satoshi Tabata, Kiyotaka Okada, Takuji WadaPlant Cell Aug 2007, 19 (8) 2531-2543; DOI: https://doi.org/10.1105/tpc.107.052274
This work demonstrates that the WRKY transcription factor TTG2 functions in a regulatory cascade in the formation of trichomes and root hair. Complexes containing R2R3 MYB and bHLH transcription factors regulate the expression of TTG2, and TTG2 acts redundantly with these complexes to regulate GL2, which encodes a homeodomain protein that promotes formation of trichomes and root hairless cells.
Kiba, Takatoshi
- You have accessRestricted AccessTargeted Degradation of PSEUDO-RESPONSE REGULATOR5 by an SCFZTL Complex Regulates Clock Function and Photomorphogenesis in Arabidopsis thalianaTakatoshi Kiba, Rossana Henriques, Hitoshi Sakakibara, Nam-Hai ChuaPlant Cell Aug 2007, 19 (8) 2516-2530; DOI: https://doi.org/10.1105/tpc.107.053033
Protein degradation regulates the Arabidopsis circadian clock. It is shown that the F-box protein ZEITLUPE mediates degradation of PRR5, a putative component of the central oscillator.
Kilaru, Aruna
- Open AccessN-Acylethanolamine Metabolism Interacts with Abscisic Acid Signaling in Arabidopsis thaliana SeedlingsNeal D. Teaster, Christy M. Motes, Yuhong Tang, William C. Wiant, Matthew Q. Cotter, Yuh-Shuh Wang, Aruna Kilaru, Barney J. Venables, Karl H. Hasenstein, Gabriel Gonzalez, Elison B. Blancaflor, Kent D. ChapmanPlant Cell Aug 2007, 19 (8) 2454-2469; DOI: https://doi.org/10.1105/tpc.106.048702
N-acylethanolamines (NAEs) are important lipid mediators in the endocannabinoid signaling pathway, which influences a variety of physiological processes in vertebrates. This work indicates that NAEs, which are also endogenous metabolites in plants, act in concert with abscisic acid in the negative regulation of seed germination and early seedling establishment.
Kobayashi, Masaharu
- You have accessRestricted AccessCell-Type Specificity of the Expression of Os BOR1, a Rice Efflux Boron Transporter Gene, Is Regulated in Response to Boron Availability for Efficient Boron Uptake and Xylem LoadingYuko Nakagawa, Hideki Hanaoka, Masaharu Kobayashi, Kazumaru Miyoshi, Kyoko Miwa, Toru FujiwaraPlant Cell Aug 2007, 19 (8) 2624-2635; DOI: https://doi.org/10.1105/tpc.106.049015
Os BOR1 is a plasma membrane–localized efflux boron transporter from rice that is essential for xyelm loading of boron. This study shows that the cell-type specificity of Os BOR1 expression depends on the boron status, providing an example of a mineral-nutrient transporter whose tissue-specific expression pattern changes depending on nutritional conditions.
Kojima, Soichi
- You have accessRestricted AccessThe Organization of High-Affinity Ammonium Uptake in Arabidopsis Roots Depends on the Spatial Arrangement and Biochemical Properties of AMT1-Type TransportersLixing Yuan, Dominique Loqué, Soichi Kojima, Sabine Rauch, Keiki Ishiyama, Eri Inoue, Hideki Takahashi, Nicolaus von WirénPlant Cell Aug 2007, 19 (8) 2636-2652; DOI: https://doi.org/10.1105/tpc.107.052134
Ammonium uptake across the plasma membrane of plant roots is mediated by AMT-type transporters. By generating triple and quadruple amt mutants in Arabidopsis, this study shows that four individual AMTs that differ in cell type–specific expression and substrate affinity contribute to high-affinity ammonium influx with different nitrogen-dependent transport capacities.
Krasileva, Ksenia V.
- You have accessRestricted AccessAdaptive Evolution Has Targeted the C-Terminal Domain of the RXLR Effectors of Plant Pathogenic OomycetesJoe Win, William Morgan, Jorunn Bos, Ksenia V. Krasileva, Liliana M. Cano, Angela Chaparro-Garcia, Randa Ammar, Brian J. Staskawicz, Sophien KamounPlant Cell Aug 2007, 19 (8) 2349-2369; DOI: https://doi.org/10.1105/tpc.107.051037
The RXLR effectors of plant pathogenic oomycetes are shown to be under adaptive selection. Positive selection has acted for the most part on the C-terminal region consistent with the view that RXLR effectors are modular proteins, with the C-terminal domain dedicated to modulating host defenses inside plant cells.
Kroeger, Tiffany S.
- You have accessRestricted AccessA Ribonuclease III Domain Protein Functions in Group II Intron Splicing in Maize ChloroplastsKenneth P. Watkins, Tiffany S. Kroeger, Amy M. Cooke, Rosalind E. Williams-Carrier, Giulia Friso, Susan E. Belcher, Klaas J. van Wijk, Alice BarkanPlant Cell Aug 2007, 19 (8) 2606-2623; DOI: https://doi.org/10.1105/tpc.107.053736
Chloroplasts harbor numerous group II introns, ribozymes whose activity is facilitated by proteins in vivo. This study shows that RNC1, a protein with catalytically inactive RNAse III domains, promotes the splicing of many group II introns in chloroplasts and is bound to those introns in vivo. RNC1 functions both together with and independently of previously described chloroplast splicing factors.
Kurata, Nori
- You have accessRestricted AccessA Germ Cell–Specific Gene of the ARGONAUTE Family Is Essential for the Progression of Premeiotic Mitosis and Meiosis during Sporogenesis in RiceKen-Ichi Nonomura, Akane Morohoshi, Mutsuko Nakano, Mitsugu Eiguchi, Akio Miyao, Hirohiko Hirochika, Nori KurataPlant Cell Aug 2007, 19 (8) 2583-2594; DOI: https://doi.org/10.1105/tpc.107.053199
Cytological analyses of retrotransposon-tagged lines show that the rice MEL1 gene of the ARGONAUTE family plays important roles in germ cell mitosis, faithful meiosis progression, and maintenance of copy number of rDNA repeats.
Kutter, Claudia
- Open AccessMicroRNA-Mediated Regulation of Stomatal Development in ArabidopsisClaudia Kutter, Hanspeter Schöb, Michael Stadler, Frederick Meins Jr., Azeddine Si-AmmourPlant Cell Aug 2007, 19 (8) 2417-2429; DOI: https://doi.org/10.1105/tpc.107.050377
Stomatal development in Arabidopsis involves guard cell differentiation, amplification divisions of precursor cells, and placement of stomata. This work shows that formation of higher-order stomatal complexes depends on regulation of the MADS box protein AGL16 by miR824, a recently evolved microRNA conserved in the Brassicaceae. This interaction could account for some Brassica-specific features of stomatal organization.
L
Lally, David
- You have accessRestricted AccessSowing the Seeds of Dialogue: Public Engagement through Plant ScienceDavid Lally, Eric Brooks, Frans E. Tax, Erin L. DolanPlant Cell Aug 2007, 19 (8) 2311-2319; DOI: https://doi.org/10.1105/tpc.107.053587
Larkins, Brian A.
- You have accessRestricted AccessThe Maize Floury1 Gene Encodes a Novel Endoplasmic Reticulum Protein Involved in Zein Protein Body FormationDavid R. Holding, Marisa S. Otegui, Bailin Li, Robert B. Meeley, Thao Dam, Brenda G. Hunter, Rudolf Jung, Brian A. LarkinsPlant Cell Aug 2007, 19 (8) 2569-2582; DOI: https://doi.org/10.1105/tpc.107.053538
This work reports the cloning of maize Floury1 (Fl1), which encodes a novel zein protein body membrane protein with three predicted transmembrane domains and a C-terminal plant-specific domain of unknown function. It is shown that FL1 likely participates in protein body formation by facilitating the localization of 22-kD α-zein and that this is essential for the formation of vitreous endosperm.
Lee, Kuo-Wei
- You have accessRestricted AccessThe SnRK1A Protein Kinase Plays a Key Role in Sugar Signaling during Germination and Seedling Growth of RiceChung-An Lu, Chih-Cheng Lin, Kuo-Wei Lee, Jyh-Long Chen, Li-Fen Huang, Shin-Lon Ho, Hsin-Ju Liu, Yue-Ie Hsing, Su-May YuPlant Cell Aug 2007, 19 (8) 2484-2499; DOI: https://doi.org/10.1105/tpc.105.037887
This work demonstrates a functional link between the SnRK1A protein kinase and the MYBS1 transcription factor as essential components in the sugar signaling pathway regulating the α-amylase gene promoter. The results provide new insight into mechanisms of sugar regulation and the physiological relevance of SnRK1A in germination and seedling growth.
Lee, Sung Chul
- You have accessRestricted AccessA WD40 Domain Cyclophilin Interacts with Histone H3 and Functions in Gene Repression and Organogenesis in ArabidopsisHong Li, Zengyong He, Guihua Lu, Sung Chul Lee, Jose Alonso, Joseph R. Ecker, Sheng LuanPlant Cell Aug 2007, 19 (8) 2403-2416; DOI: https://doi.org/10.1105/tpc.107.053579
In this study, the WD40-containing cyclophilin CYP71 is identified as an essential factor for normal development in Arabidopsis. CYP71 physically interacts with histone H3 and regulates the level of histone methylation of target loci, thus affecting gene expression. CYP71 is conserved among eukaryotes and may serve as a ubiquitous chromatin remodeling factor involved in epigenetic silencing.
Lee, Yuh-Ru Julie
- You have accessRestricted AccessTwo Arabidopsis Phragmoplast-Associated Kinesins Play a Critical Role in Cytokinesis during Male GametogenesisYuh-Ru Julie Lee, Yan Li, Bo LiuPlant Cell Aug 2007, 19 (8) 2595-2605; DOI: https://doi.org/10.1105/tpc.107.050716
Two homologous microtubule motor kinesins in Arabidopsis, Kinesin-12A and Kinesin-12B, localize at juxtaposing plus ends of antiparallel microtubules in the middle of the phragmoplast. Postmeiotic development of the male gametophyte is severely inhibited in the absence of both kinesins, indicating that they jointly play a key role in the organization of phragmoplast microtubules during cytokinesis in the microspore.
Li, Bailin
- You have accessRestricted AccessThe Maize Floury1 Gene Encodes a Novel Endoplasmic Reticulum Protein Involved in Zein Protein Body FormationDavid R. Holding, Marisa S. Otegui, Bailin Li, Robert B. Meeley, Thao Dam, Brenda G. Hunter, Rudolf Jung, Brian A. LarkinsPlant Cell Aug 2007, 19 (8) 2569-2582; DOI: https://doi.org/10.1105/tpc.107.053538
This work reports the cloning of maize Floury1 (Fl1), which encodes a novel zein protein body membrane protein with three predicted transmembrane domains and a C-terminal plant-specific domain of unknown function. It is shown that FL1 likely participates in protein body formation by facilitating the localization of 22-kD α-zein and that this is essential for the formation of vitreous endosperm.
Li, Hong
- You have accessRestricted AccessA WD40 Domain Cyclophilin Interacts with Histone H3 and Functions in Gene Repression and Organogenesis in ArabidopsisHong Li, Zengyong He, Guihua Lu, Sung Chul Lee, Jose Alonso, Joseph R. Ecker, Sheng LuanPlant Cell Aug 2007, 19 (8) 2403-2416; DOI: https://doi.org/10.1105/tpc.107.053579
In this study, the WD40-containing cyclophilin CYP71 is identified as an essential factor for normal development in Arabidopsis. CYP71 physically interacts with histone H3 and regulates the level of histone methylation of target loci, thus affecting gene expression. CYP71 is conserved among eukaryotes and may serve as a ubiquitous chromatin remodeling factor involved in epigenetic silencing.
Li, Yan
- You have accessRestricted AccessTwo Arabidopsis Phragmoplast-Associated Kinesins Play a Critical Role in Cytokinesis during Male GametogenesisYuh-Ru Julie Lee, Yan Li, Bo LiuPlant Cell Aug 2007, 19 (8) 2595-2605; DOI: https://doi.org/10.1105/tpc.107.050716
Two homologous microtubule motor kinesins in Arabidopsis, Kinesin-12A and Kinesin-12B, localize at juxtaposing plus ends of antiparallel microtubules in the middle of the phragmoplast. Postmeiotic development of the male gametophyte is severely inhibited in the absence of both kinesins, indicating that they jointly play a key role in the organization of phragmoplast microtubules during cytokinesis in the microspore.
Li, Yunhai
- You have accessRestricted AccessSignaling from an Altered Cell Wall to the Nucleus Mediates Sugar-Responsive Growth and Development in Arabidopsis thalianaYunhai Li, Caroline Smith, Fiona Corke, Leiying Zheng, Zara Merali, Peter Ryden, Paul Derbyshire, Keith Waldron, Michael W. BevanPlant Cell Aug 2007, 19 (8) 2500-2515; DOI: https://doi.org/10.1105/tpc.106.049965
Arabidopsis HIGH SUGAR RESPONSE8 (HSR8) is found to be allelic to the MUR4 gene involved in arabinose synthesis. Genetic analyses show that nuclear-localized Pleiotropic Regulatory Locus1 (PRL1) is required for enhanced sugar responses in hsr8 mutant plants and reveal a pathway through PRL1 that signals changes in the cell wall to alter gene expression and sugar-responsive metabolic and developmental changes.
Lin, Chih-Cheng
- You have accessRestricted AccessThe SnRK1A Protein Kinase Plays a Key Role in Sugar Signaling during Germination and Seedling Growth of RiceChung-An Lu, Chih-Cheng Lin, Kuo-Wei Lee, Jyh-Long Chen, Li-Fen Huang, Shin-Lon Ho, Hsin-Ju Liu, Yue-Ie Hsing, Su-May YuPlant Cell Aug 2007, 19 (8) 2484-2499; DOI: https://doi.org/10.1105/tpc.105.037887
This work demonstrates a functional link between the SnRK1A protein kinase and the MYBS1 transcription factor as essential components in the sugar signaling pathway regulating the α-amylase gene promoter. The results provide new insight into mechanisms of sugar regulation and the physiological relevance of SnRK1A in germination and seedling growth.
Liu, Bo
- You have accessRestricted AccessTwo Arabidopsis Phragmoplast-Associated Kinesins Play a Critical Role in Cytokinesis during Male GametogenesisYuh-Ru Julie Lee, Yan Li, Bo LiuPlant Cell Aug 2007, 19 (8) 2595-2605; DOI: https://doi.org/10.1105/tpc.107.050716
Two homologous microtubule motor kinesins in Arabidopsis, Kinesin-12A and Kinesin-12B, localize at juxtaposing plus ends of antiparallel microtubules in the middle of the phragmoplast. Postmeiotic development of the male gametophyte is severely inhibited in the absence of both kinesins, indicating that they jointly play a key role in the organization of phragmoplast microtubules during cytokinesis in the microspore.
Liu, Hsin-Ju
- You have accessRestricted AccessThe SnRK1A Protein Kinase Plays a Key Role in Sugar Signaling during Germination and Seedling Growth of RiceChung-An Lu, Chih-Cheng Lin, Kuo-Wei Lee, Jyh-Long Chen, Li-Fen Huang, Shin-Lon Ho, Hsin-Ju Liu, Yue-Ie Hsing, Su-May YuPlant Cell Aug 2007, 19 (8) 2484-2499; DOI: https://doi.org/10.1105/tpc.105.037887
This work demonstrates a functional link between the SnRK1A protein kinase and the MYBS1 transcription factor as essential components in the sugar signaling pathway regulating the α-amylase gene promoter. The results provide new insight into mechanisms of sugar regulation and the physiological relevance of SnRK1A in germination and seedling growth.
Loqué, Dominique
- You have accessRestricted AccessThe Organization of High-Affinity Ammonium Uptake in Arabidopsis Roots Depends on the Spatial Arrangement and Biochemical Properties of AMT1-Type TransportersLixing Yuan, Dominique Loqué, Soichi Kojima, Sabine Rauch, Keiki Ishiyama, Eri Inoue, Hideki Takahashi, Nicolaus von WirénPlant Cell Aug 2007, 19 (8) 2636-2652; DOI: https://doi.org/10.1105/tpc.107.052134
Ammonium uptake across the plasma membrane of plant roots is mediated by AMT-type transporters. By generating triple and quadruple amt mutants in Arabidopsis, this study shows that four individual AMTs that differ in cell type–specific expression and substrate affinity contribute to high-affinity ammonium influx with different nitrogen-dependent transport capacities.
Lu, Chung-An
- You have accessRestricted AccessThe SnRK1A Protein Kinase Plays a Key Role in Sugar Signaling during Germination and Seedling Growth of RiceChung-An Lu, Chih-Cheng Lin, Kuo-Wei Lee, Jyh-Long Chen, Li-Fen Huang, Shin-Lon Ho, Hsin-Ju Liu, Yue-Ie Hsing, Su-May YuPlant Cell Aug 2007, 19 (8) 2484-2499; DOI: https://doi.org/10.1105/tpc.105.037887
This work demonstrates a functional link between the SnRK1A protein kinase and the MYBS1 transcription factor as essential components in the sugar signaling pathway regulating the α-amylase gene promoter. The results provide new insight into mechanisms of sugar regulation and the physiological relevance of SnRK1A in germination and seedling growth.
Lu, Guihua
- You have accessRestricted AccessA WD40 Domain Cyclophilin Interacts with Histone H3 and Functions in Gene Repression and Organogenesis in ArabidopsisHong Li, Zengyong He, Guihua Lu, Sung Chul Lee, Jose Alonso, Joseph R. Ecker, Sheng LuanPlant Cell Aug 2007, 19 (8) 2403-2416; DOI: https://doi.org/10.1105/tpc.107.053579
In this study, the WD40-containing cyclophilin CYP71 is identified as an essential factor for normal development in Arabidopsis. CYP71 physically interacts with histone H3 and regulates the level of histone methylation of target loci, thus affecting gene expression. CYP71 is conserved among eukaryotes and may serve as a ubiquitous chromatin remodeling factor involved in epigenetic silencing.
Luan, Sheng
- You have accessRestricted AccessA WD40 Domain Cyclophilin Interacts with Histone H3 and Functions in Gene Repression and Organogenesis in ArabidopsisHong Li, Zengyong He, Guihua Lu, Sung Chul Lee, Jose Alonso, Joseph R. Ecker, Sheng LuanPlant Cell Aug 2007, 19 (8) 2403-2416; DOI: https://doi.org/10.1105/tpc.107.053579
In this study, the WD40-containing cyclophilin CYP71 is identified as an essential factor for normal development in Arabidopsis. CYP71 physically interacts with histone H3 and regulates the level of histone methylation of target loci, thus affecting gene expression. CYP71 is conserved among eukaryotes and may serve as a ubiquitous chromatin remodeling factor involved in epigenetic silencing.
M
Masiero, Simona
- You have accessRestricted AccessGenetic and Molecular Interactions between BELL1 and MADS Box Factors Support Ovule Development in ArabidopsisVittoria Brambilla, Raffaella Battaglia, Monica Colombo, Simona Masiero, Stefano Bencivenga, Martin M. Kater, Lucia ColomboPlant Cell Aug 2007, 19 (8) 2544-2556; DOI: https://doi.org/10.1105/tpc.107.051797
Ovule development requires a correct balance of factors determining ovule and carpel identity. It is shown that this balance is obtained by complex formation between BELL1 and AGAMOUS. Furthermore, ovule differentiation requires the regulation of the stem cell maintenance gene WUSCHEL, the repression of which is predominantly maintained by BELL1 during ovule development.
Meeley, Robert B.
- You have accessRestricted AccessThe Maize Floury1 Gene Encodes a Novel Endoplasmic Reticulum Protein Involved in Zein Protein Body FormationDavid R. Holding, Marisa S. Otegui, Bailin Li, Robert B. Meeley, Thao Dam, Brenda G. Hunter, Rudolf Jung, Brian A. LarkinsPlant Cell Aug 2007, 19 (8) 2569-2582; DOI: https://doi.org/10.1105/tpc.107.053538
This work reports the cloning of maize Floury1 (Fl1), which encodes a novel zein protein body membrane protein with three predicted transmembrane domains and a C-terminal plant-specific domain of unknown function. It is shown that FL1 likely participates in protein body formation by facilitating the localization of 22-kD α-zein and that this is essential for the formation of vitreous endosperm.
Meins, Frederick
- Open AccessMicroRNA-Mediated Regulation of Stomatal Development in ArabidopsisClaudia Kutter, Hanspeter Schöb, Michael Stadler, Frederick Meins Jr., Azeddine Si-AmmourPlant Cell Aug 2007, 19 (8) 2417-2429; DOI: https://doi.org/10.1105/tpc.107.050377
Stomatal development in Arabidopsis involves guard cell differentiation, amplification divisions of precursor cells, and placement of stomata. This work shows that formation of higher-order stomatal complexes depends on regulation of the MADS box protein AGL16 by miR824, a recently evolved microRNA conserved in the Brassicaceae. This interaction could account for some Brassica-specific features of stomatal organization.
Merali, Zara
- You have accessRestricted AccessSignaling from an Altered Cell Wall to the Nucleus Mediates Sugar-Responsive Growth and Development in Arabidopsis thalianaYunhai Li, Caroline Smith, Fiona Corke, Leiying Zheng, Zara Merali, Peter Ryden, Paul Derbyshire, Keith Waldron, Michael W. BevanPlant Cell Aug 2007, 19 (8) 2500-2515; DOI: https://doi.org/10.1105/tpc.106.049965
Arabidopsis HIGH SUGAR RESPONSE8 (HSR8) is found to be allelic to the MUR4 gene involved in arabinose synthesis. Genetic analyses show that nuclear-localized Pleiotropic Regulatory Locus1 (PRL1) is required for enhanced sugar responses in hsr8 mutant plants and reveal a pathway through PRL1 that signals changes in the cell wall to alter gene expression and sugar-responsive metabolic and developmental changes.
Miwa, Kyoko
- You have accessRestricted AccessCell-Type Specificity of the Expression of Os BOR1, a Rice Efflux Boron Transporter Gene, Is Regulated in Response to Boron Availability for Efficient Boron Uptake and Xylem LoadingYuko Nakagawa, Hideki Hanaoka, Masaharu Kobayashi, Kazumaru Miyoshi, Kyoko Miwa, Toru FujiwaraPlant Cell Aug 2007, 19 (8) 2624-2635; DOI: https://doi.org/10.1105/tpc.106.049015
Os BOR1 is a plasma membrane–localized efflux boron transporter from rice that is essential for xyelm loading of boron. This study shows that the cell-type specificity of Os BOR1 expression depends on the boron status, providing an example of a mineral-nutrient transporter whose tissue-specific expression pattern changes depending on nutritional conditions.
Miyao, Akio
- You have accessRestricted AccessA Germ Cell–Specific Gene of the ARGONAUTE Family Is Essential for the Progression of Premeiotic Mitosis and Meiosis during Sporogenesis in RiceKen-Ichi Nonomura, Akane Morohoshi, Mutsuko Nakano, Mitsugu Eiguchi, Akio Miyao, Hirohiko Hirochika, Nori KurataPlant Cell Aug 2007, 19 (8) 2583-2594; DOI: https://doi.org/10.1105/tpc.107.053199
Cytological analyses of retrotransposon-tagged lines show that the rice MEL1 gene of the ARGONAUTE family plays important roles in germ cell mitosis, faithful meiosis progression, and maintenance of copy number of rDNA repeats.
Miyoshi, Kazumaru
- You have accessRestricted AccessCell-Type Specificity of the Expression of Os BOR1, a Rice Efflux Boron Transporter Gene, Is Regulated in Response to Boron Availability for Efficient Boron Uptake and Xylem LoadingYuko Nakagawa, Hideki Hanaoka, Masaharu Kobayashi, Kazumaru Miyoshi, Kyoko Miwa, Toru FujiwaraPlant Cell Aug 2007, 19 (8) 2624-2635; DOI: https://doi.org/10.1105/tpc.106.049015
Os BOR1 is a plasma membrane–localized efflux boron transporter from rice that is essential for xyelm loading of boron. This study shows that the cell-type specificity of Os BOR1 expression depends on the boron status, providing an example of a mineral-nutrient transporter whose tissue-specific expression pattern changes depending on nutritional conditions.
Morgan, William
- You have accessRestricted AccessAdaptive Evolution Has Targeted the C-Terminal Domain of the RXLR Effectors of Plant Pathogenic OomycetesJoe Win, William Morgan, Jorunn Bos, Ksenia V. Krasileva, Liliana M. Cano, Angela Chaparro-Garcia, Randa Ammar, Brian J. Staskawicz, Sophien KamounPlant Cell Aug 2007, 19 (8) 2349-2369; DOI: https://doi.org/10.1105/tpc.107.051037
The RXLR effectors of plant pathogenic oomycetes are shown to be under adaptive selection. Positive selection has acted for the most part on the C-terminal region consistent with the view that RXLR effectors are modular proteins, with the C-terminal domain dedicated to modulating host defenses inside plant cells.
Morohoshi, Akane
- You have accessRestricted AccessA Germ Cell–Specific Gene of the ARGONAUTE Family Is Essential for the Progression of Premeiotic Mitosis and Meiosis during Sporogenesis in RiceKen-Ichi Nonomura, Akane Morohoshi, Mutsuko Nakano, Mitsugu Eiguchi, Akio Miyao, Hirohiko Hirochika, Nori KurataPlant Cell Aug 2007, 19 (8) 2583-2594; DOI: https://doi.org/10.1105/tpc.107.053199
Cytological analyses of retrotransposon-tagged lines show that the rice MEL1 gene of the ARGONAUTE family plays important roles in germ cell mitosis, faithful meiosis progression, and maintenance of copy number of rDNA repeats.
Morreel, Kris
- You have accessRestricted AccessA Molecular Timetable for Apical Bud Formation and Dormancy Induction in PoplarTom Ruttink, Matthias Arend, Kris Morreel, Véronique Storme, Stephane Rombauts, Jörg Fromm, Rishikesh P. Bhalerao, Wout Boerjan, Antje RohdePlant Cell Aug 2007, 19 (8) 2370-2390; DOI: https://doi.org/10.1105/tpc.107.052811
The transition from growth to dormancy is part of the seasonal growth cycle in perennial plants. In a systems biology approach involving transcriptome, metabolome, and electron microscopy analyses, autumnal bud development is dissected into its molecular programs. A comparative approach identified common genes for growth-to-dormancy transitions across different plant organs.
Motes, Christy M.
- Open AccessN-Acylethanolamine Metabolism Interacts with Abscisic Acid Signaling in Arabidopsis thaliana SeedlingsNeal D. Teaster, Christy M. Motes, Yuhong Tang, William C. Wiant, Matthew Q. Cotter, Yuh-Shuh Wang, Aruna Kilaru, Barney J. Venables, Karl H. Hasenstein, Gabriel Gonzalez, Elison B. Blancaflor, Kent D. ChapmanPlant Cell Aug 2007, 19 (8) 2454-2469; DOI: https://doi.org/10.1105/tpc.106.048702
N-acylethanolamines (NAEs) are important lipid mediators in the endocannabinoid signaling pathway, which influences a variety of physiological processes in vertebrates. This work indicates that NAEs, which are also endogenous metabolites in plants, act in concert with abscisic acid in the negative regulation of seed germination and early seedling establishment.
Murphy, Angus S.
- You have accessRestricted AccessThe Arabidopsis Transcription Factor MYB77 Modulates Auxin Signal TransductionRyoung Shin, Adrien Y. Burch, Kari A. Huppert, Shiv B. Tiwari, Angus S. Murphy, Tom J. Guilfoyle, Daniel P. SchachtmanPlant Cell Aug 2007, 19 (8) 2440-2453; DOI: https://doi.org/10.1105/tpc.107.050963
This study provides new insight into the regulation of auxin-responsive gene expression in plant cells. Biochemical and genetic analyses show that MYB77 interacts with auxin response factors (ARFs) to modulate auxin-responsive gene expression affecting lateral root growth under low potassium conditions.
N
Nakagawa, Yuko
- You have accessRestricted AccessCell-Type Specificity of the Expression of Os BOR1, a Rice Efflux Boron Transporter Gene, Is Regulated in Response to Boron Availability for Efficient Boron Uptake and Xylem LoadingYuko Nakagawa, Hideki Hanaoka, Masaharu Kobayashi, Kazumaru Miyoshi, Kyoko Miwa, Toru FujiwaraPlant Cell Aug 2007, 19 (8) 2624-2635; DOI: https://doi.org/10.1105/tpc.106.049015
Os BOR1 is a plasma membrane–localized efflux boron transporter from rice that is essential for xyelm loading of boron. This study shows that the cell-type specificity of Os BOR1 expression depends on the boron status, providing an example of a mineral-nutrient transporter whose tissue-specific expression pattern changes depending on nutritional conditions.
Nakano, Mutsuko
- You have accessRestricted AccessA Germ Cell–Specific Gene of the ARGONAUTE Family Is Essential for the Progression of Premeiotic Mitosis and Meiosis during Sporogenesis in RiceKen-Ichi Nonomura, Akane Morohoshi, Mutsuko Nakano, Mitsugu Eiguchi, Akio Miyao, Hirohiko Hirochika, Nori KurataPlant Cell Aug 2007, 19 (8) 2583-2594; DOI: https://doi.org/10.1105/tpc.107.053199
Cytological analyses of retrotransposon-tagged lines show that the rice MEL1 gene of the ARGONAUTE family plays important roles in germ cell mitosis, faithful meiosis progression, and maintenance of copy number of rDNA repeats.
Nonomura, Ken-Ichi
- You have accessRestricted AccessA Germ Cell–Specific Gene of the ARGONAUTE Family Is Essential for the Progression of Premeiotic Mitosis and Meiosis during Sporogenesis in RiceKen-Ichi Nonomura, Akane Morohoshi, Mutsuko Nakano, Mitsugu Eiguchi, Akio Miyao, Hirohiko Hirochika, Nori KurataPlant Cell Aug 2007, 19 (8) 2583-2594; DOI: https://doi.org/10.1105/tpc.107.053199
Cytological analyses of retrotransposon-tagged lines show that the rice MEL1 gene of the ARGONAUTE family plays important roles in germ cell mitosis, faithful meiosis progression, and maintenance of copy number of rDNA repeats.
O
Okada, Kiyotaka
- You have accessRestricted AccessArabidopsis TRANSPARENT TESTA GLABRA2 Is Directly Regulated by R2R3 MYB Transcription Factors and Is Involved in Regulation of GLABRA2 Transcription in Epidermal DifferentiationTetsuya Ishida, Sayoko Hattori, Ryosuke Sano, Kayoko Inoue, Yumiko Shirano, Hiroaki Hayashi, Daisuke Shibata, Shusei Sato, Tomohiko Kato, Satoshi Tabata, Kiyotaka Okada, Takuji WadaPlant Cell Aug 2007, 19 (8) 2531-2543; DOI: https://doi.org/10.1105/tpc.107.052274
This work demonstrates that the WRKY transcription factor TTG2 functions in a regulatory cascade in the formation of trichomes and root hair. Complexes containing R2R3 MYB and bHLH transcription factors regulate the expression of TTG2, and TTG2 acts redundantly with these complexes to regulate GL2, which encodes a homeodomain protein that promotes formation of trichomes and root hairless cells.
Otegui, Marisa S.
- You have accessRestricted AccessThe Maize Floury1 Gene Encodes a Novel Endoplasmic Reticulum Protein Involved in Zein Protein Body FormationDavid R. Holding, Marisa S. Otegui, Bailin Li, Robert B. Meeley, Thao Dam, Brenda G. Hunter, Rudolf Jung, Brian A. LarkinsPlant Cell Aug 2007, 19 (8) 2569-2582; DOI: https://doi.org/10.1105/tpc.107.053538
This work reports the cloning of maize Floury1 (Fl1), which encodes a novel zein protein body membrane protein with three predicted transmembrane domains and a C-terminal plant-specific domain of unknown function. It is shown that FL1 likely participates in protein body formation by facilitating the localization of 22-kD α-zein and that this is essential for the formation of vitreous endosperm.
P
Pagni, Marco
- Open AccessA Downstream Mediator in the Growth Repression Limb of the Jasmonate PathwayYuanxin Yan, Stéphanie Stolz, Aurore Chételat, Philippe Reymond, Marco Pagni, Lucie Dubugnon, Edward E. FarmerPlant Cell Aug 2007, 19 (8) 2470-2483; DOI: https://doi.org/10.1105/tpc.107.050708
Gain- and loss-of-function analyses coupled with physiological assays demonstrate that JASMONATE ASSOCIATED1 acts as a repressor of jasmonic acid–regulated growth retardation.
Punwani, Jayson A.
- You have accessRestricted AccessMYB98 Positively Regulates a Battery of Synergid-Expressed Genes Encoding Filiform Apparatus–Localized ProteinsJayson A. Punwani, David S. Rabiger, Gary N. DrewsPlant Cell Aug 2007, 19 (8) 2557-2568; DOI: https://doi.org/10.1105/tpc.107.052076
MYB98 encodes an R2R3-MYB transcription factor required for pollen tube guidance and filiform apparatus (FA) formation by the synergid cells of the female gametophyte. This study identifies 16 MYB98-regulated genes, most of which encode Cys-rich proteins. Many of the encoded proteins are secreted into the FA, suggesting a role in FA formation or pollen tube guidance.
R
Rabiger, David S.
- You have accessRestricted AccessMYB98 Positively Regulates a Battery of Synergid-Expressed Genes Encoding Filiform Apparatus–Localized ProteinsJayson A. Punwani, David S. Rabiger, Gary N. DrewsPlant Cell Aug 2007, 19 (8) 2557-2568; DOI: https://doi.org/10.1105/tpc.107.052076
MYB98 encodes an R2R3-MYB transcription factor required for pollen tube guidance and filiform apparatus (FA) formation by the synergid cells of the female gametophyte. This study identifies 16 MYB98-regulated genes, most of which encode Cys-rich proteins. Many of the encoded proteins are secreted into the FA, suggesting a role in FA formation or pollen tube guidance.
Rauch, Sabine
- You have accessRestricted AccessThe Organization of High-Affinity Ammonium Uptake in Arabidopsis Roots Depends on the Spatial Arrangement and Biochemical Properties of AMT1-Type TransportersLixing Yuan, Dominique Loqué, Soichi Kojima, Sabine Rauch, Keiki Ishiyama, Eri Inoue, Hideki Takahashi, Nicolaus von WirénPlant Cell Aug 2007, 19 (8) 2636-2652; DOI: https://doi.org/10.1105/tpc.107.052134
Ammonium uptake across the plasma membrane of plant roots is mediated by AMT-type transporters. By generating triple and quadruple amt mutants in Arabidopsis, this study shows that four individual AMTs that differ in cell type–specific expression and substrate affinity contribute to high-affinity ammonium influx with different nitrogen-dependent transport capacities.
Reymond, Philippe
- Open AccessA Downstream Mediator in the Growth Repression Limb of the Jasmonate PathwayYuanxin Yan, Stéphanie Stolz, Aurore Chételat, Philippe Reymond, Marco Pagni, Lucie Dubugnon, Edward E. FarmerPlant Cell Aug 2007, 19 (8) 2470-2483; DOI: https://doi.org/10.1105/tpc.107.050708
Gain- and loss-of-function analyses coupled with physiological assays demonstrate that JASMONATE ASSOCIATED1 acts as a repressor of jasmonic acid–regulated growth retardation.
Rivard, Rebecca S.
- You have accessRestricted AccessThiol-Based Regulation of Redox-Active Glutamate-Cysteine Ligase from Arabidopsis thalianaLeslie M. Hicks, Rebecca E. Cahoon, Eric R. Bonner, Rebecca S. Rivard, Jeanne Sheffield, Joseph M. JezPlant Cell Aug 2007, 19 (8) 2653-2661; DOI: https://doi.org/10.1105/tpc.107.052597
This work employs mass spectrometry and site-directed mutagenesis to examine the redox response of Arabidopsis glutamate-cysteine ligase (GCL), which catalyzes the first step in glutathione biosynthesis, and shows that thiol-based regulation of GCL provides a posttranslational mechanism for modulating enzyme activity in response to the in vivo redox environment.
Rohde, Antje
- You have accessRestricted AccessA Molecular Timetable for Apical Bud Formation and Dormancy Induction in PoplarTom Ruttink, Matthias Arend, Kris Morreel, Véronique Storme, Stephane Rombauts, Jörg Fromm, Rishikesh P. Bhalerao, Wout Boerjan, Antje RohdePlant Cell Aug 2007, 19 (8) 2370-2390; DOI: https://doi.org/10.1105/tpc.107.052811
The transition from growth to dormancy is part of the seasonal growth cycle in perennial plants. In a systems biology approach involving transcriptome, metabolome, and electron microscopy analyses, autumnal bud development is dissected into its molecular programs. A comparative approach identified common genes for growth-to-dormancy transitions across different plant organs.
Rombauts, Stephane
- You have accessRestricted AccessA Molecular Timetable for Apical Bud Formation and Dormancy Induction in PoplarTom Ruttink, Matthias Arend, Kris Morreel, Véronique Storme, Stephane Rombauts, Jörg Fromm, Rishikesh P. Bhalerao, Wout Boerjan, Antje RohdePlant Cell Aug 2007, 19 (8) 2370-2390; DOI: https://doi.org/10.1105/tpc.107.052811
The transition from growth to dormancy is part of the seasonal growth cycle in perennial plants. In a systems biology approach involving transcriptome, metabolome, and electron microscopy analyses, autumnal bud development is dissected into its molecular programs. A comparative approach identified common genes for growth-to-dormancy transitions across different plant organs.
Ruttink, Tom
- You have accessRestricted AccessA Molecular Timetable for Apical Bud Formation and Dormancy Induction in PoplarTom Ruttink, Matthias Arend, Kris Morreel, Véronique Storme, Stephane Rombauts, Jörg Fromm, Rishikesh P. Bhalerao, Wout Boerjan, Antje RohdePlant Cell Aug 2007, 19 (8) 2370-2390; DOI: https://doi.org/10.1105/tpc.107.052811
The transition from growth to dormancy is part of the seasonal growth cycle in perennial plants. In a systems biology approach involving transcriptome, metabolome, and electron microscopy analyses, autumnal bud development is dissected into its molecular programs. A comparative approach identified common genes for growth-to-dormancy transitions across different plant organs.
Ryden, Peter
- You have accessRestricted AccessSignaling from an Altered Cell Wall to the Nucleus Mediates Sugar-Responsive Growth and Development in Arabidopsis thalianaYunhai Li, Caroline Smith, Fiona Corke, Leiying Zheng, Zara Merali, Peter Ryden, Paul Derbyshire, Keith Waldron, Michael W. BevanPlant Cell Aug 2007, 19 (8) 2500-2515; DOI: https://doi.org/10.1105/tpc.106.049965
Arabidopsis HIGH SUGAR RESPONSE8 (HSR8) is found to be allelic to the MUR4 gene involved in arabinose synthesis. Genetic analyses show that nuclear-localized Pleiotropic Regulatory Locus1 (PRL1) is required for enhanced sugar responses in hsr8 mutant plants and reveal a pathway through PRL1 that signals changes in the cell wall to alter gene expression and sugar-responsive metabolic and developmental changes.
S
Sakakibara, Hitoshi
- You have accessRestricted AccessTargeted Degradation of PSEUDO-RESPONSE REGULATOR5 by an SCFZTL Complex Regulates Clock Function and Photomorphogenesis in Arabidopsis thalianaTakatoshi Kiba, Rossana Henriques, Hitoshi Sakakibara, Nam-Hai ChuaPlant Cell Aug 2007, 19 (8) 2516-2530; DOI: https://doi.org/10.1105/tpc.107.053033
Protein degradation regulates the Arabidopsis circadian clock. It is shown that the F-box protein ZEITLUPE mediates degradation of PRR5, a putative component of the central oscillator.
Sano, Ryosuke
- You have accessRestricted AccessArabidopsis TRANSPARENT TESTA GLABRA2 Is Directly Regulated by R2R3 MYB Transcription Factors and Is Involved in Regulation of GLABRA2 Transcription in Epidermal DifferentiationTetsuya Ishida, Sayoko Hattori, Ryosuke Sano, Kayoko Inoue, Yumiko Shirano, Hiroaki Hayashi, Daisuke Shibata, Shusei Sato, Tomohiko Kato, Satoshi Tabata, Kiyotaka Okada, Takuji WadaPlant Cell Aug 2007, 19 (8) 2531-2543; DOI: https://doi.org/10.1105/tpc.107.052274
This work demonstrates that the WRKY transcription factor TTG2 functions in a regulatory cascade in the formation of trichomes and root hair. Complexes containing R2R3 MYB and bHLH transcription factors regulate the expression of TTG2, and TTG2 acts redundantly with these complexes to regulate GL2, which encodes a homeodomain protein that promotes formation of trichomes and root hairless cells.
Sato, Shusei
- You have accessRestricted AccessArabidopsis TRANSPARENT TESTA GLABRA2 Is Directly Regulated by R2R3 MYB Transcription Factors and Is Involved in Regulation of GLABRA2 Transcription in Epidermal DifferentiationTetsuya Ishida, Sayoko Hattori, Ryosuke Sano, Kayoko Inoue, Yumiko Shirano, Hiroaki Hayashi, Daisuke Shibata, Shusei Sato, Tomohiko Kato, Satoshi Tabata, Kiyotaka Okada, Takuji WadaPlant Cell Aug 2007, 19 (8) 2531-2543; DOI: https://doi.org/10.1105/tpc.107.052274
This work demonstrates that the WRKY transcription factor TTG2 functions in a regulatory cascade in the formation of trichomes and root hair. Complexes containing R2R3 MYB and bHLH transcription factors regulate the expression of TTG2, and TTG2 acts redundantly with these complexes to regulate GL2, which encodes a homeodomain protein that promotes formation of trichomes and root hairless cells.
Schachtman, Daniel P.
- You have accessRestricted AccessThe Arabidopsis Transcription Factor MYB77 Modulates Auxin Signal TransductionRyoung Shin, Adrien Y. Burch, Kari A. Huppert, Shiv B. Tiwari, Angus S. Murphy, Tom J. Guilfoyle, Daniel P. SchachtmanPlant Cell Aug 2007, 19 (8) 2440-2453; DOI: https://doi.org/10.1105/tpc.107.050963
This study provides new insight into the regulation of auxin-responsive gene expression in plant cells. Biochemical and genetic analyses show that MYB77 interacts with auxin response factors (ARFs) to modulate auxin-responsive gene expression affecting lateral root growth under low potassium conditions.
Schöb, Hanspeter
- Open AccessMicroRNA-Mediated Regulation of Stomatal Development in ArabidopsisClaudia Kutter, Hanspeter Schöb, Michael Stadler, Frederick Meins Jr., Azeddine Si-AmmourPlant Cell Aug 2007, 19 (8) 2417-2429; DOI: https://doi.org/10.1105/tpc.107.050377
Stomatal development in Arabidopsis involves guard cell differentiation, amplification divisions of precursor cells, and placement of stomata. This work shows that formation of higher-order stomatal complexes depends on regulation of the MADS box protein AGL16 by miR824, a recently evolved microRNA conserved in the Brassicaceae. This interaction could account for some Brassica-specific features of stomatal organization.
Schubert, Ingo
- You have accessRestricted AccessEngineered Plant Minichromosomes: A Resurrection of B Chromosomes?Andreas Houben, Ingo SchubertPlant Cell Aug 2007, 19 (8) 2323-2327; DOI: https://doi.org/10.1105/tpc.107.053603
Sheffield, Jeanne
- You have accessRestricted AccessThiol-Based Regulation of Redox-Active Glutamate-Cysteine Ligase from Arabidopsis thalianaLeslie M. Hicks, Rebecca E. Cahoon, Eric R. Bonner, Rebecca S. Rivard, Jeanne Sheffield, Joseph M. JezPlant Cell Aug 2007, 19 (8) 2653-2661; DOI: https://doi.org/10.1105/tpc.107.052597
This work employs mass spectrometry and site-directed mutagenesis to examine the redox response of Arabidopsis glutamate-cysteine ligase (GCL), which catalyzes the first step in glutathione biosynthesis, and shows that thiol-based regulation of GCL provides a posttranslational mechanism for modulating enzyme activity in response to the in vivo redox environment.
Shibata, Daisuke
- You have accessRestricted AccessArabidopsis TRANSPARENT TESTA GLABRA2 Is Directly Regulated by R2R3 MYB Transcription Factors and Is Involved in Regulation of GLABRA2 Transcription in Epidermal DifferentiationTetsuya Ishida, Sayoko Hattori, Ryosuke Sano, Kayoko Inoue, Yumiko Shirano, Hiroaki Hayashi, Daisuke Shibata, Shusei Sato, Tomohiko Kato, Satoshi Tabata, Kiyotaka Okada, Takuji WadaPlant Cell Aug 2007, 19 (8) 2531-2543; DOI: https://doi.org/10.1105/tpc.107.052274
This work demonstrates that the WRKY transcription factor TTG2 functions in a regulatory cascade in the formation of trichomes and root hair. Complexes containing R2R3 MYB and bHLH transcription factors regulate the expression of TTG2, and TTG2 acts redundantly with these complexes to regulate GL2, which encodes a homeodomain protein that promotes formation of trichomes and root hairless cells.
Shin, Ryoung
- You have accessRestricted AccessThe Arabidopsis Transcription Factor MYB77 Modulates Auxin Signal TransductionRyoung Shin, Adrien Y. Burch, Kari A. Huppert, Shiv B. Tiwari, Angus S. Murphy, Tom J. Guilfoyle, Daniel P. SchachtmanPlant Cell Aug 2007, 19 (8) 2440-2453; DOI: https://doi.org/10.1105/tpc.107.050963
This study provides new insight into the regulation of auxin-responsive gene expression in plant cells. Biochemical and genetic analyses show that MYB77 interacts with auxin response factors (ARFs) to modulate auxin-responsive gene expression affecting lateral root growth under low potassium conditions.
Shirano, Yumiko
- You have accessRestricted AccessArabidopsis TRANSPARENT TESTA GLABRA2 Is Directly Regulated by R2R3 MYB Transcription Factors and Is Involved in Regulation of GLABRA2 Transcription in Epidermal DifferentiationTetsuya Ishida, Sayoko Hattori, Ryosuke Sano, Kayoko Inoue, Yumiko Shirano, Hiroaki Hayashi, Daisuke Shibata, Shusei Sato, Tomohiko Kato, Satoshi Tabata, Kiyotaka Okada, Takuji WadaPlant Cell Aug 2007, 19 (8) 2531-2543; DOI: https://doi.org/10.1105/tpc.107.052274
This work demonstrates that the WRKY transcription factor TTG2 functions in a regulatory cascade in the formation of trichomes and root hair. Complexes containing R2R3 MYB and bHLH transcription factors regulate the expression of TTG2, and TTG2 acts redundantly with these complexes to regulate GL2, which encodes a homeodomain protein that promotes formation of trichomes and root hairless cells.
Shiu, Shin-Han
- You have accessRestricted AccessLarge-Scale, Lineage-Specific Expansion of a Bric-a-Brac/Tramtrack/Broad Complex Ubiquitin-Ligase Gene Family in RiceDerek J. Gingerich, Kousuke Hanada, Shin-Han Shiu, Richard D. VierstraPlant Cell Aug 2007, 19 (8) 2329-2348; DOI: https://doi.org/10.1105/tpc.107.051300
BTB genes encode E3 ubiquitin-ligase target recognition subunits. This study characterizes the 149-member BTB superfamily in rice and compares it to the 80-member BTB superfamily in Arabidopsis. The rice MATH-BTB family has undergone dramatic expansion accompanied by increased sequence diversification and reduced purifying selection. A possible role in innate immunity is presented.
Si-Ammour, Azeddine
- Open AccessMicroRNA-Mediated Regulation of Stomatal Development in ArabidopsisClaudia Kutter, Hanspeter Schöb, Michael Stadler, Frederick Meins Jr., Azeddine Si-AmmourPlant Cell Aug 2007, 19 (8) 2417-2429; DOI: https://doi.org/10.1105/tpc.107.050377
Stomatal development in Arabidopsis involves guard cell differentiation, amplification divisions of precursor cells, and placement of stomata. This work shows that formation of higher-order stomatal complexes depends on regulation of the MADS box protein AGL16 by miR824, a recently evolved microRNA conserved in the Brassicaceae. This interaction could account for some Brassica-specific features of stomatal organization.
Skamnioti, Pari
- Open AccessMagnaporthe grisea Cutinase2 Mediates Appressorium Differentiation and Host Penetration and Is Required for Full VirulencePari Skamnioti, Sarah J. GurrPlant Cell Aug 2007, 19 (8) 2674-2689; DOI: https://doi.org/10.1105/tpc.107.051219
The rice blast fungus employs secreted cutinase2 (Cut2) for surface sensing, germling differentiation, and host penetration. The cut2 mutant displays anomalous morphogenesis, forms fewer penetration pegs, and is poorly pathogenic. Developmental and pathogenicity defects are restored by synthetic cutin monomers, cAMP and DAG. Cut2 is an upstream activator of cAMP/PKA and DAG/PKC signaling pathways.
Smith, Caroline
- You have accessRestricted AccessSignaling from an Altered Cell Wall to the Nucleus Mediates Sugar-Responsive Growth and Development in Arabidopsis thalianaYunhai Li, Caroline Smith, Fiona Corke, Leiying Zheng, Zara Merali, Peter Ryden, Paul Derbyshire, Keith Waldron, Michael W. BevanPlant Cell Aug 2007, 19 (8) 2500-2515; DOI: https://doi.org/10.1105/tpc.106.049965
Arabidopsis HIGH SUGAR RESPONSE8 (HSR8) is found to be allelic to the MUR4 gene involved in arabinose synthesis. Genetic analyses show that nuclear-localized Pleiotropic Regulatory Locus1 (PRL1) is required for enhanced sugar responses in hsr8 mutant plants and reveal a pathway through PRL1 that signals changes in the cell wall to alter gene expression and sugar-responsive metabolic and developmental changes.
Springer, Nathan M.
- You have accessRestricted AccessAllele-Specific Expression Patterns Reveal Biases and Embryo-Specific Parent-of-Origin Effects in Hybrid MaizeNathan M. Springer, Robert M. StuparPlant Cell Aug 2007, 19 (8) 2391-2402; DOI: https://doi.org/10.1105/tpc.107.052258
The relative expression level of maize alleles was assayed in multiple developmental stages and multiple hybrid genotypes. Assessment of transcriptional variation, cis/trans-regulatory variation, tissue-specific allelic differences, and parent-of-origin effects provide evidence for prevalent cis-acting regulatory variation that contributes to differential gene expression between genotypes and tissues.
Stadler, Michael
- Open AccessMicroRNA-Mediated Regulation of Stomatal Development in ArabidopsisClaudia Kutter, Hanspeter Schöb, Michael Stadler, Frederick Meins Jr., Azeddine Si-AmmourPlant Cell Aug 2007, 19 (8) 2417-2429; DOI: https://doi.org/10.1105/tpc.107.050377
Stomatal development in Arabidopsis involves guard cell differentiation, amplification divisions of precursor cells, and placement of stomata. This work shows that formation of higher-order stomatal complexes depends on regulation of the MADS box protein AGL16 by miR824, a recently evolved microRNA conserved in the Brassicaceae. This interaction could account for some Brassica-specific features of stomatal organization.
Staskawicz, Brian J.
- You have accessRestricted AccessAdaptive Evolution Has Targeted the C-Terminal Domain of the RXLR Effectors of Plant Pathogenic OomycetesJoe Win, William Morgan, Jorunn Bos, Ksenia V. Krasileva, Liliana M. Cano, Angela Chaparro-Garcia, Randa Ammar, Brian J. Staskawicz, Sophien KamounPlant Cell Aug 2007, 19 (8) 2349-2369; DOI: https://doi.org/10.1105/tpc.107.051037
The RXLR effectors of plant pathogenic oomycetes are shown to be under adaptive selection. Positive selection has acted for the most part on the C-terminal region consistent with the view that RXLR effectors are modular proteins, with the C-terminal domain dedicated to modulating host defenses inside plant cells.
Stolz, Stéphanie
- Open AccessA Downstream Mediator in the Growth Repression Limb of the Jasmonate PathwayYuanxin Yan, Stéphanie Stolz, Aurore Chételat, Philippe Reymond, Marco Pagni, Lucie Dubugnon, Edward E. FarmerPlant Cell Aug 2007, 19 (8) 2470-2483; DOI: https://doi.org/10.1105/tpc.107.050708
Gain- and loss-of-function analyses coupled with physiological assays demonstrate that JASMONATE ASSOCIATED1 acts as a repressor of jasmonic acid–regulated growth retardation.
Storme, Véronique
- You have accessRestricted AccessA Molecular Timetable for Apical Bud Formation and Dormancy Induction in PoplarTom Ruttink, Matthias Arend, Kris Morreel, Véronique Storme, Stephane Rombauts, Jörg Fromm, Rishikesh P. Bhalerao, Wout Boerjan, Antje RohdePlant Cell Aug 2007, 19 (8) 2370-2390; DOI: https://doi.org/10.1105/tpc.107.052811
The transition from growth to dormancy is part of the seasonal growth cycle in perennial plants. In a systems biology approach involving transcriptome, metabolome, and electron microscopy analyses, autumnal bud development is dissected into its molecular programs. A comparative approach identified common genes for growth-to-dormancy transitions across different plant organs.
Stupar, Robert M.
- You have accessRestricted AccessAllele-Specific Expression Patterns Reveal Biases and Embryo-Specific Parent-of-Origin Effects in Hybrid MaizeNathan M. Springer, Robert M. StuparPlant Cell Aug 2007, 19 (8) 2391-2402; DOI: https://doi.org/10.1105/tpc.107.052258
The relative expression level of maize alleles was assayed in multiple developmental stages and multiple hybrid genotypes. Assessment of transcriptional variation, cis/trans-regulatory variation, tissue-specific allelic differences, and parent-of-origin effects provide evidence for prevalent cis-acting regulatory variation that contributes to differential gene expression between genotypes and tissues.
T
Tabata, Satoshi
- You have accessRestricted AccessArabidopsis TRANSPARENT TESTA GLABRA2 Is Directly Regulated by R2R3 MYB Transcription Factors and Is Involved in Regulation of GLABRA2 Transcription in Epidermal DifferentiationTetsuya Ishida, Sayoko Hattori, Ryosuke Sano, Kayoko Inoue, Yumiko Shirano, Hiroaki Hayashi, Daisuke Shibata, Shusei Sato, Tomohiko Kato, Satoshi Tabata, Kiyotaka Okada, Takuji WadaPlant Cell Aug 2007, 19 (8) 2531-2543; DOI: https://doi.org/10.1105/tpc.107.052274
This work demonstrates that the WRKY transcription factor TTG2 functions in a regulatory cascade in the formation of trichomes and root hair. Complexes containing R2R3 MYB and bHLH transcription factors regulate the expression of TTG2, and TTG2 acts redundantly with these complexes to regulate GL2, which encodes a homeodomain protein that promotes formation of trichomes and root hairless cells.
Takahashi, Hideki
- You have accessRestricted AccessThe Organization of High-Affinity Ammonium Uptake in Arabidopsis Roots Depends on the Spatial Arrangement and Biochemical Properties of AMT1-Type TransportersLixing Yuan, Dominique Loqué, Soichi Kojima, Sabine Rauch, Keiki Ishiyama, Eri Inoue, Hideki Takahashi, Nicolaus von WirénPlant Cell Aug 2007, 19 (8) 2636-2652; DOI: https://doi.org/10.1105/tpc.107.052134
Ammonium uptake across the plasma membrane of plant roots is mediated by AMT-type transporters. By generating triple and quadruple amt mutants in Arabidopsis, this study shows that four individual AMTs that differ in cell type–specific expression and substrate affinity contribute to high-affinity ammonium influx with different nitrogen-dependent transport capacities.
Tang, Yuhong
- Open AccessN-Acylethanolamine Metabolism Interacts with Abscisic Acid Signaling in Arabidopsis thaliana SeedlingsNeal D. Teaster, Christy M. Motes, Yuhong Tang, William C. Wiant, Matthew Q. Cotter, Yuh-Shuh Wang, Aruna Kilaru, Barney J. Venables, Karl H. Hasenstein, Gabriel Gonzalez, Elison B. Blancaflor, Kent D. ChapmanPlant Cell Aug 2007, 19 (8) 2454-2469; DOI: https://doi.org/10.1105/tpc.106.048702
N-acylethanolamines (NAEs) are important lipid mediators in the endocannabinoid signaling pathway, which influences a variety of physiological processes in vertebrates. This work indicates that NAEs, which are also endogenous metabolites in plants, act in concert with abscisic acid in the negative regulation of seed germination and early seedling establishment.
Tax, Frans E.
- You have accessRestricted AccessSowing the Seeds of Dialogue: Public Engagement through Plant ScienceDavid Lally, Eric Brooks, Frans E. Tax, Erin L. DolanPlant Cell Aug 2007, 19 (8) 2311-2319; DOI: https://doi.org/10.1105/tpc.107.053587
Teaster, Neal D.
- Open AccessN-Acylethanolamine Metabolism Interacts with Abscisic Acid Signaling in Arabidopsis thaliana SeedlingsNeal D. Teaster, Christy M. Motes, Yuhong Tang, William C. Wiant, Matthew Q. Cotter, Yuh-Shuh Wang, Aruna Kilaru, Barney J. Venables, Karl H. Hasenstein, Gabriel Gonzalez, Elison B. Blancaflor, Kent D. ChapmanPlant Cell Aug 2007, 19 (8) 2454-2469; DOI: https://doi.org/10.1105/tpc.106.048702
N-acylethanolamines (NAEs) are important lipid mediators in the endocannabinoid signaling pathway, which influences a variety of physiological processes in vertebrates. This work indicates that NAEs, which are also endogenous metabolites in plants, act in concert with abscisic acid in the negative regulation of seed germination and early seedling establishment.
Tiwari, Shiv B.
- You have accessRestricted AccessThe Arabidopsis Transcription Factor MYB77 Modulates Auxin Signal TransductionRyoung Shin, Adrien Y. Burch, Kari A. Huppert, Shiv B. Tiwari, Angus S. Murphy, Tom J. Guilfoyle, Daniel P. SchachtmanPlant Cell Aug 2007, 19 (8) 2440-2453; DOI: https://doi.org/10.1105/tpc.107.050963
This study provides new insight into the regulation of auxin-responsive gene expression in plant cells. Biochemical and genetic analyses show that MYB77 interacts with auxin response factors (ARFs) to modulate auxin-responsive gene expression affecting lateral root growth under low potassium conditions.
V
van Wijk, Klaas J.
- You have accessRestricted AccessA Ribonuclease III Domain Protein Functions in Group II Intron Splicing in Maize ChloroplastsKenneth P. Watkins, Tiffany S. Kroeger, Amy M. Cooke, Rosalind E. Williams-Carrier, Giulia Friso, Susan E. Belcher, Klaas J. van Wijk, Alice BarkanPlant Cell Aug 2007, 19 (8) 2606-2623; DOI: https://doi.org/10.1105/tpc.107.053736
Chloroplasts harbor numerous group II introns, ribozymes whose activity is facilitated by proteins in vivo. This study shows that RNC1, a protein with catalytically inactive RNAse III domains, promotes the splicing of many group II introns in chloroplasts and is bound to those introns in vivo. RNC1 functions both together with and independently of previously described chloroplast splicing factors.
Venables, Barney J.
- Open AccessN-Acylethanolamine Metabolism Interacts with Abscisic Acid Signaling in Arabidopsis thaliana SeedlingsNeal D. Teaster, Christy M. Motes, Yuhong Tang, William C. Wiant, Matthew Q. Cotter, Yuh-Shuh Wang, Aruna Kilaru, Barney J. Venables, Karl H. Hasenstein, Gabriel Gonzalez, Elison B. Blancaflor, Kent D. ChapmanPlant Cell Aug 2007, 19 (8) 2454-2469; DOI: https://doi.org/10.1105/tpc.106.048702
N-acylethanolamines (NAEs) are important lipid mediators in the endocannabinoid signaling pathway, which influences a variety of physiological processes in vertebrates. This work indicates that NAEs, which are also endogenous metabolites in plants, act in concert with abscisic acid in the negative regulation of seed germination and early seedling establishment.
Vierstra, Richard D.
- You have accessRestricted AccessLarge-Scale, Lineage-Specific Expansion of a Bric-a-Brac/Tramtrack/Broad Complex Ubiquitin-Ligase Gene Family in RiceDerek J. Gingerich, Kousuke Hanada, Shin-Han Shiu, Richard D. VierstraPlant Cell Aug 2007, 19 (8) 2329-2348; DOI: https://doi.org/10.1105/tpc.107.051300
BTB genes encode E3 ubiquitin-ligase target recognition subunits. This study characterizes the 149-member BTB superfamily in rice and compares it to the 80-member BTB superfamily in Arabidopsis. The rice MATH-BTB family has undergone dramatic expansion accompanied by increased sequence diversification and reduced purifying selection. A possible role in innate immunity is presented.
von Wirén, Nicolaus
- You have accessRestricted AccessThe Organization of High-Affinity Ammonium Uptake in Arabidopsis Roots Depends on the Spatial Arrangement and Biochemical Properties of AMT1-Type TransportersLixing Yuan, Dominique Loqué, Soichi Kojima, Sabine Rauch, Keiki Ishiyama, Eri Inoue, Hideki Takahashi, Nicolaus von WirénPlant Cell Aug 2007, 19 (8) 2636-2652; DOI: https://doi.org/10.1105/tpc.107.052134
Ammonium uptake across the plasma membrane of plant roots is mediated by AMT-type transporters. By generating triple and quadruple amt mutants in Arabidopsis, this study shows that four individual AMTs that differ in cell type–specific expression and substrate affinity contribute to high-affinity ammonium influx with different nitrogen-dependent transport capacities.
W
Wada, Takuji
- You have accessRestricted AccessArabidopsis TRANSPARENT TESTA GLABRA2 Is Directly Regulated by R2R3 MYB Transcription Factors and Is Involved in Regulation of GLABRA2 Transcription in Epidermal DifferentiationTetsuya Ishida, Sayoko Hattori, Ryosuke Sano, Kayoko Inoue, Yumiko Shirano, Hiroaki Hayashi, Daisuke Shibata, Shusei Sato, Tomohiko Kato, Satoshi Tabata, Kiyotaka Okada, Takuji WadaPlant Cell Aug 2007, 19 (8) 2531-2543; DOI: https://doi.org/10.1105/tpc.107.052274
This work demonstrates that the WRKY transcription factor TTG2 functions in a regulatory cascade in the formation of trichomes and root hair. Complexes containing R2R3 MYB and bHLH transcription factors regulate the expression of TTG2, and TTG2 acts redundantly with these complexes to regulate GL2, which encodes a homeodomain protein that promotes formation of trichomes and root hairless cells.
Waldron, Keith
- You have accessRestricted AccessSignaling from an Altered Cell Wall to the Nucleus Mediates Sugar-Responsive Growth and Development in Arabidopsis thalianaYunhai Li, Caroline Smith, Fiona Corke, Leiying Zheng, Zara Merali, Peter Ryden, Paul Derbyshire, Keith Waldron, Michael W. BevanPlant Cell Aug 2007, 19 (8) 2500-2515; DOI: https://doi.org/10.1105/tpc.106.049965
Arabidopsis HIGH SUGAR RESPONSE8 (HSR8) is found to be allelic to the MUR4 gene involved in arabinose synthesis. Genetic analyses show that nuclear-localized Pleiotropic Regulatory Locus1 (PRL1) is required for enhanced sugar responses in hsr8 mutant plants and reveal a pathway through PRL1 that signals changes in the cell wall to alter gene expression and sugar-responsive metabolic and developmental changes.
Wang, Yuh-Shuh
- Open AccessN-Acylethanolamine Metabolism Interacts with Abscisic Acid Signaling in Arabidopsis thaliana SeedlingsNeal D. Teaster, Christy M. Motes, Yuhong Tang, William C. Wiant, Matthew Q. Cotter, Yuh-Shuh Wang, Aruna Kilaru, Barney J. Venables, Karl H. Hasenstein, Gabriel Gonzalez, Elison B. Blancaflor, Kent D. ChapmanPlant Cell Aug 2007, 19 (8) 2454-2469; DOI: https://doi.org/10.1105/tpc.106.048702
N-acylethanolamines (NAEs) are important lipid mediators in the endocannabinoid signaling pathway, which influences a variety of physiological processes in vertebrates. This work indicates that NAEs, which are also endogenous metabolites in plants, act in concert with abscisic acid in the negative regulation of seed germination and early seedling establishment.
Watkins, Kenneth P.
- You have accessRestricted AccessA Ribonuclease III Domain Protein Functions in Group II Intron Splicing in Maize ChloroplastsKenneth P. Watkins, Tiffany S. Kroeger, Amy M. Cooke, Rosalind E. Williams-Carrier, Giulia Friso, Susan E. Belcher, Klaas J. van Wijk, Alice BarkanPlant Cell Aug 2007, 19 (8) 2606-2623; DOI: https://doi.org/10.1105/tpc.107.053736
Chloroplasts harbor numerous group II introns, ribozymes whose activity is facilitated by proteins in vivo. This study shows that RNC1, a protein with catalytically inactive RNAse III domains, promotes the splicing of many group II introns in chloroplasts and is bound to those introns in vivo. RNC1 functions both together with and independently of previously described chloroplast splicing factors.
Wiant, William C.
- Open AccessN-Acylethanolamine Metabolism Interacts with Abscisic Acid Signaling in Arabidopsis thaliana SeedlingsNeal D. Teaster, Christy M. Motes, Yuhong Tang, William C. Wiant, Matthew Q. Cotter, Yuh-Shuh Wang, Aruna Kilaru, Barney J. Venables, Karl H. Hasenstein, Gabriel Gonzalez, Elison B. Blancaflor, Kent D. ChapmanPlant Cell Aug 2007, 19 (8) 2454-2469; DOI: https://doi.org/10.1105/tpc.106.048702
N-acylethanolamines (NAEs) are important lipid mediators in the endocannabinoid signaling pathway, which influences a variety of physiological processes in vertebrates. This work indicates that NAEs, which are also endogenous metabolites in plants, act in concert with abscisic acid in the negative regulation of seed germination and early seedling establishment.
Williams-Carrier, Rosalind E.
- You have accessRestricted AccessA Ribonuclease III Domain Protein Functions in Group II Intron Splicing in Maize ChloroplastsKenneth P. Watkins, Tiffany S. Kroeger, Amy M. Cooke, Rosalind E. Williams-Carrier, Giulia Friso, Susan E. Belcher, Klaas J. van Wijk, Alice BarkanPlant Cell Aug 2007, 19 (8) 2606-2623; DOI: https://doi.org/10.1105/tpc.107.053736
Chloroplasts harbor numerous group II introns, ribozymes whose activity is facilitated by proteins in vivo. This study shows that RNC1, a protein with catalytically inactive RNAse III domains, promotes the splicing of many group II introns in chloroplasts and is bound to those introns in vivo. RNC1 functions both together with and independently of previously described chloroplast splicing factors.
Win, Joe
- You have accessRestricted AccessAdaptive Evolution Has Targeted the C-Terminal Domain of the RXLR Effectors of Plant Pathogenic OomycetesJoe Win, William Morgan, Jorunn Bos, Ksenia V. Krasileva, Liliana M. Cano, Angela Chaparro-Garcia, Randa Ammar, Brian J. Staskawicz, Sophien KamounPlant Cell Aug 2007, 19 (8) 2349-2369; DOI: https://doi.org/10.1105/tpc.107.051037
The RXLR effectors of plant pathogenic oomycetes are shown to be under adaptive selection. Positive selection has acted for the most part on the C-terminal region consistent with the view that RXLR effectors are modular proteins, with the C-terminal domain dedicated to modulating host defenses inside plant cells.
Y
Yan, Yuanxin
- Open AccessA Downstream Mediator in the Growth Repression Limb of the Jasmonate PathwayYuanxin Yan, Stéphanie Stolz, Aurore Chételat, Philippe Reymond, Marco Pagni, Lucie Dubugnon, Edward E. FarmerPlant Cell Aug 2007, 19 (8) 2470-2483; DOI: https://doi.org/10.1105/tpc.107.050708
Gain- and loss-of-function analyses coupled with physiological assays demonstrate that JASMONATE ASSOCIATED1 acts as a repressor of jasmonic acid–regulated growth retardation.
Yu, Su-May
- You have accessRestricted AccessThe SnRK1A Protein Kinase Plays a Key Role in Sugar Signaling during Germination and Seedling Growth of RiceChung-An Lu, Chih-Cheng Lin, Kuo-Wei Lee, Jyh-Long Chen, Li-Fen Huang, Shin-Lon Ho, Hsin-Ju Liu, Yue-Ie Hsing, Su-May YuPlant Cell Aug 2007, 19 (8) 2484-2499; DOI: https://doi.org/10.1105/tpc.105.037887
This work demonstrates a functional link between the SnRK1A protein kinase and the MYBS1 transcription factor as essential components in the sugar signaling pathway regulating the α-amylase gene promoter. The results provide new insight into mechanisms of sugar regulation and the physiological relevance of SnRK1A in germination and seedling growth.
Yuan, Lixing
- You have accessRestricted AccessThe Organization of High-Affinity Ammonium Uptake in Arabidopsis Roots Depends on the Spatial Arrangement and Biochemical Properties of AMT1-Type TransportersLixing Yuan, Dominique Loqué, Soichi Kojima, Sabine Rauch, Keiki Ishiyama, Eri Inoue, Hideki Takahashi, Nicolaus von WirénPlant Cell Aug 2007, 19 (8) 2636-2652; DOI: https://doi.org/10.1105/tpc.107.052134
Ammonium uptake across the plasma membrane of plant roots is mediated by AMT-type transporters. By generating triple and quadruple amt mutants in Arabidopsis, this study shows that four individual AMTs that differ in cell type–specific expression and substrate affinity contribute to high-affinity ammonium influx with different nitrogen-dependent transport capacities.
Z
Zhao, Yunde
- You have accessRestricted AccessAuxin Synthesized by the YUCCA Flavin Monooxygenases Is Essential for Embryogenesis and Leaf Formation in ArabidopsisYoufa Cheng, Xinhua Dai, Yunde ZhaoPlant Cell Aug 2007, 19 (8) 2430-2439; DOI: https://doi.org/10.1105/tpc.107.053009
Genetic analysis of various combinations of yuc mutants and polar auxin transport mutants pin1 and aux1 establish that auxin synthesized by the YUC flavin monooxygenases is essential for the establishment of the basal body region during embryogenesis and the formation of embryonic and postembryonic organs.
Zheng, Leiying
- You have accessRestricted AccessSignaling from an Altered Cell Wall to the Nucleus Mediates Sugar-Responsive Growth and Development in Arabidopsis thalianaYunhai Li, Caroline Smith, Fiona Corke, Leiying Zheng, Zara Merali, Peter Ryden, Paul Derbyshire, Keith Waldron, Michael W. BevanPlant Cell Aug 2007, 19 (8) 2500-2515; DOI: https://doi.org/10.1105/tpc.106.049965
Arabidopsis HIGH SUGAR RESPONSE8 (HSR8) is found to be allelic to the MUR4 gene involved in arabinose synthesis. Genetic analyses show that nuclear-localized Pleiotropic Regulatory Locus1 (PRL1) is required for enhanced sugar responses in hsr8 mutant plants and reveal a pathway through PRL1 that signals changes in the cell wall to alter gene expression and sugar-responsive metabolic and developmental changes.