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Table of Contents

The Plant Cell Online: 21 (2)
Feb 2009
  • A
  • B
  • C
  • D
  • E
  • F
  • G
  • H
  • I
  • J
  • K
  • L
  • M
  • N
  • O
  • P
  • Q
  • R
  • S
  • T
  • U
  • V
  • W
  • X
  • Y
  • Z

A

  1. Ambrose, Mike

    1. Open Access
      Tendril-less Regulates Tendril Formation in Pea Leaves
      Julie Hofer, Lynda Turner, Carol Moreau, Mike Ambrose, Peter Isaac, Susan Butcher, James Weller, Adeline Dupin, Marion Dalmais, Christine Le Signor, Abdelhafid Bendahmane, Noel Ellis
      Plant Cell Feb 2009, 21 (2) 420-428; DOI: https://doi.org/10.1105/tpc.108.064071

      The gene that determines the formation of tendrils, novel filamentous leaf organs present in peas and their allies, has been identified as Tendril-less, encoding a Class I homeodomain leucine zipper transcription factor. Characterization of mutants shows that these tendrils are modified leaflets, inhibited from laminar development by the action of the Tendril-less gene.

  2. Aparicio, Frederic

    1. You have accessRestricted Access
      The Cytosolic Protein Response as a Subcomponent of the Wider Heat Shock Response in Arabidopsis
      Akiko Sugio, René Dreos, Frederic Aparicio, Andrew J. Maule
      Plant Cell Feb 2009, 21 (2) 642-654; DOI: https://doi.org/10.1105/tpc.108.062596

      Accumulation of misfolded protein in the cytosol of Arabidopsis, for example following heat shock, activates a stress response that includes a range of specific transcriptional events. This response was found to be partly regulated by the transcription factor HsfA2.

B

  1. Battey, Nicholas H.

    1. You have accessRestricted Access
      Zea mays Annexins Modulate Cytosolic Free Ca2+ and Generate a Ca2+-Permeable Conductance
      Anuphon Laohavisit, Jennifer C. Mortimer, Vadim Demidchik, Katy M. Coxon, Matthew A. Stancombe, Neil Macpherson, Colin Brownlee, Andreas Hofmann, Alex A.R. Webb, Henk Miedema, Nicholas H. Battey, Julia M. Davies
      Plant Cell Feb 2009, 21 (2) 479-493; DOI: https://doi.org/10.1105/tpc.108.059550

      Annexins are soluble proteins capable of binding to membranes. Annexins purified from maize were found to increase cytosolic free calcium in Arabidopsis protoplasts and form a transport route for calcium, possibly by interacting with an unidentified membrane binding protein. These results implicate annexins in the regulation of cell calcium and hence cell signaling and development.

  2. Bayer, Emmanuelle

    1. You have accessRestricted Access
      An Arabidopsis GPI-Anchor Plasmodesmal Neck Protein with Callose Binding Activity and Potential to Regulate Cell-to-Cell Trafficking
      Clare Simpson, Carole Thomas, Kim Findlay, Emmanuelle Bayer, Andrew J. Maule
      Plant Cell Feb 2009, 21 (2) 581-594; DOI: https://doi.org/10.1105/tpc.108.060145

      This work contributes to our understanding of plasmodesmal (Pd) structure and function through the identification of a novel Pd protein. This protein shows binding to callose, a component important in Pd regulation, and accordingly the protein appears to influence molecular flux through these cell-to-cell communication channels.

  3. Bendahmane, Abdelhafid

    1. Open Access
      Tendril-less Regulates Tendril Formation in Pea Leaves
      Julie Hofer, Lynda Turner, Carol Moreau, Mike Ambrose, Peter Isaac, Susan Butcher, James Weller, Adeline Dupin, Marion Dalmais, Christine Le Signor, Abdelhafid Bendahmane, Noel Ellis
      Plant Cell Feb 2009, 21 (2) 420-428; DOI: https://doi.org/10.1105/tpc.108.064071

      The gene that determines the formation of tendrils, novel filamentous leaf organs present in peas and their allies, has been identified as Tendril-less, encoding a Class I homeodomain leucine zipper transcription factor. Characterization of mutants shows that these tendrils are modified leaflets, inhibited from laminar development by the action of the Tendril-less gene.

  4. Bertoni, Gregory

    1. You have accessRestricted Access
      Functional ER Chaperone Required in Rice Blast Disease
      Gregory Bertoni
      Plant Cell Feb 2009, 21 (2) 366; DOI: https://doi.org/10.1105/tpc.109.210213
  5. Bhave, Mrinal

    1. You have accessRestricted Access
      Nuclear Activity of ROXY1, a Glutaredoxin Interacting with TGA Factors, Is Required for Petal Development in Arabidopsis thaliana
      Shutian Li, Andrea Lauri, Mark Ziemann, Andrea Busch, Mrinal Bhave, Sabine Zachgo
      Plant Cell Feb 2009, 21 (2) 429-441; DOI: https://doi.org/10.1105/tpc.108.064477

      Glutaredoxins are ubiquitous glutathione-dependent oxidoreductases that are associated mainly with redox-regulated processes participating in stress responses. This work shows that ROXY1, a CC-type glutaredoxin, acts in the nucleus to influence petal primordia initiation and later petal morphogenesis, likely by modifying TGA transcription factors posttranslationally.

  6. Bonhomme, Sandrine

    1. You have accessRestricted Access
      The Arabidopsis Proteasome RPT5 Subunits Are Essential for Gametophyte Development and Show Accession-Dependent Redundancy
      Jean-Luc Gallois, Anouchka Guyon-Debast, Alain Lécureuil, Daniel Vezon, Virginie Carpentier, Sandrine Bonhomme, Philippe Guerche
      Plant Cell Feb 2009, 21 (2) 442-459; DOI: https://doi.org/10.1105/tpc.108.062372

      This work shows that the proteasome Regulatory Particle 5 (RPT5) subunits are essential for male and female gametophyte development. Analysis of mutants for both genes encoding these subunits in two different Arabidopsis accessions also highlights that redundancy between the two RPT5 genes is accession dependent and in particular that the rpt5a mutant phenotype depends on its background.

  7. Book, Adam J.

    1. You have accessRestricted Access
      The RPN5 Subunit of the 26s Proteasome Is Essential for Gametogenesis, Sporophyte Development, and Complex Assembly in Arabidopsis
      Adam J. Book, Jan Smalle, Kwang-Hee Lee, Peizhen Yang, Joseph M. Walker, Sarah Casper, James H. Holmes, Laura A. Russo, Zachri W. Buzzinotti, Pablo D. Jenik, Richard D. Vierstra
      Plant Cell Feb 2009, 21 (2) 460-478; DOI: https://doi.org/10.1105/tpc.108.064444

      This study explores the function of two highly conserved isoforms of the Arabidopsis 26S proteasome subunit RPN5. The data point to a specific role for RPN5 in the plant 26S proteasome and suggest that its two isoforms in Arabidopsis have both redundant and unique roles in development.

  8. Brennicke, Axel

    1. You have accessRestricted Access
      A DYW Domain–Containing Pentatricopeptide Repeat Protein Is Required for RNA Editing at Multiple Sites in Mitochondria of Arabidopsis thaliana
      Anja Zehrmann, Daniil Verbitskiy, Johannes A. van der Merwe, Axel Brennicke, Mizuki Takenaka
      Plant Cell Feb 2009, 21 (2) 558-567; DOI: https://doi.org/10.1105/tpc.108.064535

      RNA editing in plant mitochondria changes 400 to 500 Cs to Us, mostly in mRNAs. This article identifies a trans-factor involved in RNA editing in plant mitochondria and reports that single-nucleotide mutations in this pentatricopeptide repeat protein differentially influence editing at the three sites addressed in different mRNAs.

  9. Brownlee, Colin

    1. You have accessRestricted Access
      Zea mays Annexins Modulate Cytosolic Free Ca2+ and Generate a Ca2+-Permeable Conductance
      Anuphon Laohavisit, Jennifer C. Mortimer, Vadim Demidchik, Katy M. Coxon, Matthew A. Stancombe, Neil Macpherson, Colin Brownlee, Andreas Hofmann, Alex A.R. Webb, Henk Miedema, Nicholas H. Battey, Julia M. Davies
      Plant Cell Feb 2009, 21 (2) 479-493; DOI: https://doi.org/10.1105/tpc.108.059550

      Annexins are soluble proteins capable of binding to membranes. Annexins purified from maize were found to increase cytosolic free calcium in Arabidopsis protoplasts and form a transport route for calcium, possibly by interacting with an unidentified membrane binding protein. These results implicate annexins in the regulation of cell calcium and hence cell signaling and development.

  10. Busch, Andrea

    1. You have accessRestricted Access
      Nuclear Activity of ROXY1, a Glutaredoxin Interacting with TGA Factors, Is Required for Petal Development in Arabidopsis thaliana
      Shutian Li, Andrea Lauri, Mark Ziemann, Andrea Busch, Mrinal Bhave, Sabine Zachgo
      Plant Cell Feb 2009, 21 (2) 429-441; DOI: https://doi.org/10.1105/tpc.108.064477

      Glutaredoxins are ubiquitous glutathione-dependent oxidoreductases that are associated mainly with redox-regulated processes participating in stress responses. This work shows that ROXY1, a CC-type glutaredoxin, acts in the nucleus to influence petal primordia initiation and later petal morphogenesis, likely by modifying TGA transcription factors posttranslationally.

  11. Butcher, Susan

    1. Open Access
      Tendril-less Regulates Tendril Formation in Pea Leaves
      Julie Hofer, Lynda Turner, Carol Moreau, Mike Ambrose, Peter Isaac, Susan Butcher, James Weller, Adeline Dupin, Marion Dalmais, Christine Le Signor, Abdelhafid Bendahmane, Noel Ellis
      Plant Cell Feb 2009, 21 (2) 420-428; DOI: https://doi.org/10.1105/tpc.108.064071

      The gene that determines the formation of tendrils, novel filamentous leaf organs present in peas and their allies, has been identified as Tendril-less, encoding a Class I homeodomain leucine zipper transcription factor. Characterization of mutants shows that these tendrils are modified leaflets, inhibited from laminar development by the action of the Tendril-less gene.

  12. Buzzinotti, Zachri W.

    1. You have accessRestricted Access
      The RPN5 Subunit of the 26s Proteasome Is Essential for Gametogenesis, Sporophyte Development, and Complex Assembly in Arabidopsis
      Adam J. Book, Jan Smalle, Kwang-Hee Lee, Peizhen Yang, Joseph M. Walker, Sarah Casper, James H. Holmes, Laura A. Russo, Zachri W. Buzzinotti, Pablo D. Jenik, Richard D. Vierstra
      Plant Cell Feb 2009, 21 (2) 460-478; DOI: https://doi.org/10.1105/tpc.108.064444

      This study explores the function of two highly conserved isoforms of the Arabidopsis 26S proteasome subunit RPN5. The data point to a specific role for RPN5 in the plant 26S proteasome and suggest that its two isoforms in Arabidopsis have both redundant and unique roles in development.

C

  1. Carpentier, Virginie

    1. You have accessRestricted Access
      The Arabidopsis Proteasome RPT5 Subunits Are Essential for Gametophyte Development and Show Accession-Dependent Redundancy
      Jean-Luc Gallois, Anouchka Guyon-Debast, Alain Lécureuil, Daniel Vezon, Virginie Carpentier, Sandrine Bonhomme, Philippe Guerche
      Plant Cell Feb 2009, 21 (2) 442-459; DOI: https://doi.org/10.1105/tpc.108.062372

      This work shows that the proteasome Regulatory Particle 5 (RPT5) subunits are essential for male and female gametophyte development. Analysis of mutants for both genes encoding these subunits in two different Arabidopsis accessions also highlights that redundancy between the two RPT5 genes is accession dependent and in particular that the rpt5a mutant phenotype depends on its background.

  2. Casper, Sarah

    1. You have accessRestricted Access
      The RPN5 Subunit of the 26s Proteasome Is Essential for Gametogenesis, Sporophyte Development, and Complex Assembly in Arabidopsis
      Adam J. Book, Jan Smalle, Kwang-Hee Lee, Peizhen Yang, Joseph M. Walker, Sarah Casper, James H. Holmes, Laura A. Russo, Zachri W. Buzzinotti, Pablo D. Jenik, Richard D. Vierstra
      Plant Cell Feb 2009, 21 (2) 460-478; DOI: https://doi.org/10.1105/tpc.108.064444

      This study explores the function of two highly conserved isoforms of the Arabidopsis 26S proteasome subunit RPN5. The data point to a specific role for RPN5 in the plant 26S proteasome and suggest that its two isoforms in Arabidopsis have both redundant and unique roles in development.

  3. Chen, Jianghua

    1. Open Access
      The E3 Ubiquitin Ligase SCFTIR1/AFB and Membrane Sterols Play Key Roles in Auxin Regulation of Endocytosis, Recycling, and Plasma Membrane Accumulation of the Auxin Efflux Transporter PIN2 in Arabidopsis thaliana
      Jianwei Pan, Shozo Fujioka, Jianling Peng, Jianghua Chen, Guangming Li, Rujin Chen
      Plant Cell Feb 2009, 21 (2) 568-580; DOI: https://doi.org/10.1105/tpc.108.061465

      The PIN auxin efflux transporters, which are themselves regulated by auxin, determine the direction and rate of intercellular auxin flow. This work shows that the auxin regulation of endocytosis, recycling, and plasma membrane accumulation of specific plasma membrane–resident proteins, including some PIN proteins, is dependent on a ubiquitin ligase and on membrane sterols.

  4. Chen, Rujin

    1. Open Access
      The E3 Ubiquitin Ligase SCFTIR1/AFB and Membrane Sterols Play Key Roles in Auxin Regulation of Endocytosis, Recycling, and Plasma Membrane Accumulation of the Auxin Efflux Transporter PIN2 in Arabidopsis thaliana
      Jianwei Pan, Shozo Fujioka, Jianling Peng, Jianghua Chen, Guangming Li, Rujin Chen
      Plant Cell Feb 2009, 21 (2) 568-580; DOI: https://doi.org/10.1105/tpc.108.061465

      The PIN auxin efflux transporters, which are themselves regulated by auxin, determine the direction and rate of intercellular auxin flow. This work shows that the auxin regulation of endocytosis, recycling, and plasma membrane accumulation of specific plasma membrane–resident proteins, including some PIN proteins, is dependent on a ubiquitin ligase and on membrane sterols.

  5. Chèvre, Anne-Marie

    1. You have accessRestricted Access
      Genetic Regulation of Meiotic Cross-Overs between Related Genomes in Brassica napus Haploids and Hybrids
      Stéphane D. Nicolas, Martine Leflon, Hervé Monod, Frédérique Eber, Olivier Coriton, Virginie Huteau, Anne-Marie Chèvre, Eric Jenczewski
      Plant Cell Feb 2009, 21 (2) 373-385; DOI: https://doi.org/10.1105/tpc.108.062273

      Precise control of chromosome recombination is vital for conferring genome and meiotic stability and, thus, fitness of sexually reproductive polyploids. This work provides new insights on the genetic system that regulates the number of associations between nonhomologous chromosomes during meiosis of Brassica napus haploids.

  6. Chi, Myoung-Hwan

    1. Open Access
      The ER Chaperone LHS1 Is Involved in Asexual Development and Rice Infection by the Blast Fungus Magnaporthe oryzae
      Mihwa Yi, Myoung-Hwan Chi, Chang Hyun Khang, Sook-Young Park, Seogchan Kang, Barbara Valent, Yong-Hwan Lee
      Plant Cell Feb 2009, 21 (2) 681-695; DOI: https://doi.org/10.1105/tpc.107.055988

      Magnaporthe oryzae LHS1 is an ER protein that functions in the unfolded protein response, as shown in yeast and plant systems. Disruption of the LHS1 gene causes improper processing and secretion of proteins. This disproportionately impacts early plant colonization steps in the compatible interaction and induction of plant defenses in the incompatible interaction.

  7. Cho, Seok Keun

    1. You have accessRestricted Access
      Drought Stress-Induced Rma1H1, a RING Membrane-Anchor E3 Ubiquitin Ligase Homolog, Regulates Aquaporin Levels via Ubiquitination in Transgenic Arabidopsis Plants
      Hyun Kyung Lee, Seok Keun Cho, Ora Son, Zhengyi Xu, Inhwan Hwang, Woo Taek Kim
      Plant Cell Feb 2009, 21 (2) 622-641; DOI: https://doi.org/10.1105/tpc.108.061994

      The role of ubiquitination in responses to abiotic stresses is not clearly understood. This work shows that overexpression of a hot pepper homolog of a human ubiquitin ligase results in markedly increased tolerance to severe drought stress in transgenic Arabidopsis plants by ubiquitinating the water channel protein aquaporin.

  8. Choi, Giltsu

    1. You have accessRestricted Access
      Genome-Wide Analysis of Genes Targeted by PHYTOCHROME INTERACTING FACTOR 3-LIKE5 during Seed Germination in Arabidopsis
      Eunkyoo Oh, Hyojin Kang, Shinjiro Yamaguchi, Jeongmoo Park, Doheon Lee, Yuji Kamiya, Giltsu Choi
      Plant Cell Feb 2009, 21 (2) 403-419; DOI: https://doi.org/10.1105/tpc.108.064691

      PIL5 is a phytochrome-interacting bHLH transcription factor that regulates seed germination. This work identifies genes directly targeted by PIL5 through comparison of microarray and ChIP-chip data. The analysis of the target genes shows that PIL5 regulates seed germination by coordinating various hormone signaling pathways and by modifying cell wall properties in imbibed seeds.

  9. Clarke, Jonathan

    1. You have accessRestricted Access
      A Novel Plant Leucine-Rich Repeat Receptor Kinase Regulates the Response of Medicago truncatula Roots to Salt Stress
      Laura de Lorenzo, Francisco Merchan, Philippe Laporte, Richard Thompson, Jonathan Clarke, Carolina Sousa, Martín Crespi
      Plant Cell Feb 2009, 21 (2) 668-680; DOI: https://doi.org/10.1105/tpc.108.059576

      This work examines a leucine-rich repeat-like kinase (RLK) induced in response to salt stress in the model legume Medicago truncatula. Mutants in this gene showed an impaired physiological and molecular response to high salt and accumulate less salt in their tissues. This RLK plays a key role in the adaptation of M. truncatula to salt stress.

  10. Cominelli, Eleonora

    1. You have accessRestricted Access
      The Future of Science: Food and Water for Life
      Nancy A. Eckardt, Eleonora Cominelli, Massimo Galbiati, Chiara Tonelli
      Plant Cell Feb 2009, 21 (2) 368-372; DOI: https://doi.org/10.1105/tpc.109.066209
  11. Coriton, Olivier

    1. You have accessRestricted Access
      Genetic Regulation of Meiotic Cross-Overs between Related Genomes in Brassica napus Haploids and Hybrids
      Stéphane D. Nicolas, Martine Leflon, Hervé Monod, Frédérique Eber, Olivier Coriton, Virginie Huteau, Anne-Marie Chèvre, Eric Jenczewski
      Plant Cell Feb 2009, 21 (2) 373-385; DOI: https://doi.org/10.1105/tpc.108.062273

      Precise control of chromosome recombination is vital for conferring genome and meiotic stability and, thus, fitness of sexually reproductive polyploids. This work provides new insights on the genetic system that regulates the number of associations between nonhomologous chromosomes during meiosis of Brassica napus haploids.

  12. Coxon, Katy M.

    1. You have accessRestricted Access
      Zea mays Annexins Modulate Cytosolic Free Ca2+ and Generate a Ca2+-Permeable Conductance
      Anuphon Laohavisit, Jennifer C. Mortimer, Vadim Demidchik, Katy M. Coxon, Matthew A. Stancombe, Neil Macpherson, Colin Brownlee, Andreas Hofmann, Alex A.R. Webb, Henk Miedema, Nicholas H. Battey, Julia M. Davies
      Plant Cell Feb 2009, 21 (2) 479-493; DOI: https://doi.org/10.1105/tpc.108.059550

      Annexins are soluble proteins capable of binding to membranes. Annexins purified from maize were found to increase cytosolic free calcium in Arabidopsis protoplasts and form a transport route for calcium, possibly by interacting with an unidentified membrane binding protein. These results implicate annexins in the regulation of cell calcium and hence cell signaling and development.

  13. Crespi, Martín

    1. You have accessRestricted Access
      A Novel Plant Leucine-Rich Repeat Receptor Kinase Regulates the Response of Medicago truncatula Roots to Salt Stress
      Laura de Lorenzo, Francisco Merchan, Philippe Laporte, Richard Thompson, Jonathan Clarke, Carolina Sousa, Martín Crespi
      Plant Cell Feb 2009, 21 (2) 668-680; DOI: https://doi.org/10.1105/tpc.108.059576

      This work examines a leucine-rich repeat-like kinase (RLK) induced in response to salt stress in the model legume Medicago truncatula. Mutants in this gene showed an impaired physiological and molecular response to high salt and accumulate less salt in their tissues. This RLK plays a key role in the adaptation of M. truncatula to salt stress.

D

  1. Dalmais, Marion

    1. Open Access
      Tendril-less Regulates Tendril Formation in Pea Leaves
      Julie Hofer, Lynda Turner, Carol Moreau, Mike Ambrose, Peter Isaac, Susan Butcher, James Weller, Adeline Dupin, Marion Dalmais, Christine Le Signor, Abdelhafid Bendahmane, Noel Ellis
      Plant Cell Feb 2009, 21 (2) 420-428; DOI: https://doi.org/10.1105/tpc.108.064071

      The gene that determines the formation of tendrils, novel filamentous leaf organs present in peas and their allies, has been identified as Tendril-less, encoding a Class I homeodomain leucine zipper transcription factor. Characterization of mutants shows that these tendrils are modified leaflets, inhibited from laminar development by the action of the Tendril-less gene.

  2. Davies, Julia M.

    1. You have accessRestricted Access
      Zea mays Annexins Modulate Cytosolic Free Ca2+ and Generate a Ca2+-Permeable Conductance
      Anuphon Laohavisit, Jennifer C. Mortimer, Vadim Demidchik, Katy M. Coxon, Matthew A. Stancombe, Neil Macpherson, Colin Brownlee, Andreas Hofmann, Alex A.R. Webb, Henk Miedema, Nicholas H. Battey, Julia M. Davies
      Plant Cell Feb 2009, 21 (2) 479-493; DOI: https://doi.org/10.1105/tpc.108.059550

      Annexins are soluble proteins capable of binding to membranes. Annexins purified from maize were found to increase cytosolic free calcium in Arabidopsis protoplasts and form a transport route for calcium, possibly by interacting with an unidentified membrane binding protein. These results implicate annexins in the regulation of cell calcium and hence cell signaling and development.

  3. de Azevedo Souza, Clarice

    1. You have accessRestricted Access
      A Novel Fatty Acyl-CoA Synthetase Is Required for Pollen Development and Sporopollenin Biosynthesis in Arabidopsis
      Clarice de Azevedo Souza, Sung Soo Kim, Stefanie Koch, Lucie Kienow, Katja Schneider, Sarah M. McKim, George W. Haughn, Erich Kombrink, Carl J. Douglas
      Plant Cell Feb 2009, 21 (2) 507-525; DOI: https://doi.org/10.1105/tpc.108.062513

      This study implicates an acyl-CoA synthetase that is preferentially expressed in flowers in the sporopollenin biosynthesis pathway in Arabidopsis. ACOS5 was found to localize to the cytoplasm of tapetal cells, to act on medium-chain fatty acids, and to be required for pollen formation.

  4. de Lorenzo, Laura

    1. You have accessRestricted Access
      A Novel Plant Leucine-Rich Repeat Receptor Kinase Regulates the Response of Medicago truncatula Roots to Salt Stress
      Laura de Lorenzo, Francisco Merchan, Philippe Laporte, Richard Thompson, Jonathan Clarke, Carolina Sousa, Martín Crespi
      Plant Cell Feb 2009, 21 (2) 668-680; DOI: https://doi.org/10.1105/tpc.108.059576

      This work examines a leucine-rich repeat-like kinase (RLK) induced in response to salt stress in the model legume Medicago truncatula. Mutants in this gene showed an impaired physiological and molecular response to high salt and accumulate less salt in their tissues. This RLK plays a key role in the adaptation of M. truncatula to salt stress.

  5. Demidchik, Vadim

    1. You have accessRestricted Access
      Zea mays Annexins Modulate Cytosolic Free Ca2+ and Generate a Ca2+-Permeable Conductance
      Anuphon Laohavisit, Jennifer C. Mortimer, Vadim Demidchik, Katy M. Coxon, Matthew A. Stancombe, Neil Macpherson, Colin Brownlee, Andreas Hofmann, Alex A.R. Webb, Henk Miedema, Nicholas H. Battey, Julia M. Davies
      Plant Cell Feb 2009, 21 (2) 479-493; DOI: https://doi.org/10.1105/tpc.108.059550

      Annexins are soluble proteins capable of binding to membranes. Annexins purified from maize were found to increase cytosolic free calcium in Arabidopsis protoplasts and form a transport route for calcium, possibly by interacting with an unidentified membrane binding protein. These results implicate annexins in the regulation of cell calcium and hence cell signaling and development.

  6. Deng, Xing Wang

    1. You have accessRestricted Access
      Phytochrome A Mediates Rapid Red Light–Induced Phosphorylation of Arabidopsis FAR-RED ELONGATED HYPOCOTYL1 in a Low Fluence Response
      Yunping Shen, Zhenzhen Zhou, Suhua Feng, Jigang Li, Anna Tan-Wilson, Li-Jia Qu, Haiyang Wang, Xing Wang Deng
      Plant Cell Feb 2009, 21 (2) 494-506; DOI: https://doi.org/10.1105/tpc.108.061259

      This work analyzes the protein–protein interactions between phytochrome A (phyA) and two far-red light signaling proteins (FHY1 and FHL). In addition, it finds that phyA exhibits kinase activity toward FHY1 in vitro and that FHY1 undergoes phyA-dependent phosphorylation during dark to red light transition, revealing a role of phyA in regulating this low fluence response.

  7. Douglas, Carl J.

    1. You have accessRestricted Access
      A Novel Fatty Acyl-CoA Synthetase Is Required for Pollen Development and Sporopollenin Biosynthesis in Arabidopsis
      Clarice de Azevedo Souza, Sung Soo Kim, Stefanie Koch, Lucie Kienow, Katja Schneider, Sarah M. McKim, George W. Haughn, Erich Kombrink, Carl J. Douglas
      Plant Cell Feb 2009, 21 (2) 507-525; DOI: https://doi.org/10.1105/tpc.108.062513

      This study implicates an acyl-CoA synthetase that is preferentially expressed in flowers in the sporopollenin biosynthesis pathway in Arabidopsis. ACOS5 was found to localize to the cytoplasm of tapetal cells, to act on medium-chain fatty acids, and to be required for pollen formation.

  8. Downie, J. Allan

    1. You have accessRestricted Access
      GRAS Proteins Form a DNA Binding Complex to Induce Gene Expression during Nodulation Signaling in Medicago truncatula
      Sibylle Hirsch, Jiyoung Kim, Alfonso Muñoz, Anne B. Heckmann, J. Allan Downie, Giles E.D. Oldroyd
      Plant Cell Feb 2009, 21 (2) 545-557; DOI: https://doi.org/10.1105/tpc.108.064501

      Two GRAS domain Nodulation Signaling Pathway proteins, NSP1 and NSP2, from Medicago truncatula form a complex on the promoters of Nod factor–inducible genes. This complex is enhanced upon Nod factor elicitation, and the interaction between NSP1 and NSP2 is necessary for efficient nodulation.

  9. Dreos, René

    1. You have accessRestricted Access
      The Cytosolic Protein Response as a Subcomponent of the Wider Heat Shock Response in Arabidopsis
      Akiko Sugio, René Dreos, Frederic Aparicio, Andrew J. Maule
      Plant Cell Feb 2009, 21 (2) 642-654; DOI: https://doi.org/10.1105/tpc.108.062596

      Accumulation of misfolded protein in the cytosol of Arabidopsis, for example following heat shock, activates a stress response that includes a range of specific transcriptional events. This response was found to be partly regulated by the transcription factor HsfA2.

  10. Dupin, Adeline

    1. Open Access
      Tendril-less Regulates Tendril Formation in Pea Leaves
      Julie Hofer, Lynda Turner, Carol Moreau, Mike Ambrose, Peter Isaac, Susan Butcher, James Weller, Adeline Dupin, Marion Dalmais, Christine Le Signor, Abdelhafid Bendahmane, Noel Ellis
      Plant Cell Feb 2009, 21 (2) 420-428; DOI: https://doi.org/10.1105/tpc.108.064071

      The gene that determines the formation of tendrils, novel filamentous leaf organs present in peas and their allies, has been identified as Tendril-less, encoding a Class I homeodomain leucine zipper transcription factor. Characterization of mutants shows that these tendrils are modified leaflets, inhibited from laminar development by the action of the Tendril-less gene.

E

  1. Eber, Frédérique

    1. You have accessRestricted Access
      Genetic Regulation of Meiotic Cross-Overs between Related Genomes in Brassica napus Haploids and Hybrids
      Stéphane D. Nicolas, Martine Leflon, Hervé Monod, Frédérique Eber, Olivier Coriton, Virginie Huteau, Anne-Marie Chèvre, Eric Jenczewski
      Plant Cell Feb 2009, 21 (2) 373-385; DOI: https://doi.org/10.1105/tpc.108.062273

      Precise control of chromosome recombination is vital for conferring genome and meiotic stability and, thus, fitness of sexually reproductive polyploids. This work provides new insights on the genetic system that regulates the number of associations between nonhomologous chromosomes during meiosis of Brassica napus haploids.

  2. Eckardt, Nancy A.

    1. You have accessRestricted Access
      A Receptor-Like Kinase That Functions in Adaptation to Salt Stress in Legumes
      Nancy A. Eckardt
      Plant Cell Feb 2009, 21 (2) 364; DOI: https://doi.org/10.1105/tpc.109.210211
    2. You have accessRestricted Access
      Functions of DNA Polymerase ε
      Nancy A. Eckardt
      Plant Cell Feb 2009, 21 (2) 365; DOI: https://doi.org/10.1105/tpc.109.210212
    3. You have accessRestricted Access
      Nodulation Signaling in Legumes Depends on an NSP1-NSP2 Complex
      Nancy A. Eckardt
      Plant Cell Feb 2009, 21 (2) 367; DOI: https://doi.org/10.1105/tpc.109.210214
    4. You have accessRestricted Access
      The Future of Science: Food and Water for Life
      Nancy A. Eckardt, Eleonora Cominelli, Massimo Galbiati, Chiara Tonelli
      Plant Cell Feb 2009, 21 (2) 368-372; DOI: https://doi.org/10.1105/tpc.109.066209
  3. Ellis, Noel

    1. Open Access
      Tendril-less Regulates Tendril Formation in Pea Leaves
      Julie Hofer, Lynda Turner, Carol Moreau, Mike Ambrose, Peter Isaac, Susan Butcher, James Weller, Adeline Dupin, Marion Dalmais, Christine Le Signor, Abdelhafid Bendahmane, Noel Ellis
      Plant Cell Feb 2009, 21 (2) 420-428; DOI: https://doi.org/10.1105/tpc.108.064071

      The gene that determines the formation of tendrils, novel filamentous leaf organs present in peas and their allies, has been identified as Tendril-less, encoding a Class I homeodomain leucine zipper transcription factor. Characterization of mutants shows that these tendrils are modified leaflets, inhibited from laminar development by the action of the Tendril-less gene.

F

  1. Feng, Suhua

    1. You have accessRestricted Access
      Phytochrome A Mediates Rapid Red Light–Induced Phosphorylation of Arabidopsis FAR-RED ELONGATED HYPOCOTYL1 in a Low Fluence Response
      Yunping Shen, Zhenzhen Zhou, Suhua Feng, Jigang Li, Anna Tan-Wilson, Li-Jia Qu, Haiyang Wang, Xing Wang Deng
      Plant Cell Feb 2009, 21 (2) 494-506; DOI: https://doi.org/10.1105/tpc.108.061259

      This work analyzes the protein–protein interactions between phytochrome A (phyA) and two far-red light signaling proteins (FHY1 and FHL). In addition, it finds that phyA exhibits kinase activity toward FHY1 in vitro and that FHY1 undergoes phyA-dependent phosphorylation during dark to red light transition, revealing a role of phyA in regulating this low fluence response.

  2. Findlay, Kim

    1. You have accessRestricted Access
      An Arabidopsis GPI-Anchor Plasmodesmal Neck Protein with Callose Binding Activity and Potential to Regulate Cell-to-Cell Trafficking
      Clare Simpson, Carole Thomas, Kim Findlay, Emmanuelle Bayer, Andrew J. Maule
      Plant Cell Feb 2009, 21 (2) 581-594; DOI: https://doi.org/10.1105/tpc.108.060145

      This work contributes to our understanding of plasmodesmal (Pd) structure and function through the identification of a novel Pd protein. This protein shows binding to callose, a component important in Pd regulation, and accordingly the protein appears to influence molecular flux through these cell-to-cell communication channels.

  3. Fujioka, Shozo

    1. Open Access
      The E3 Ubiquitin Ligase SCFTIR1/AFB and Membrane Sterols Play Key Roles in Auxin Regulation of Endocytosis, Recycling, and Plasma Membrane Accumulation of the Auxin Efflux Transporter PIN2 in Arabidopsis thaliana
      Jianwei Pan, Shozo Fujioka, Jianling Peng, Jianghua Chen, Guangming Li, Rujin Chen
      Plant Cell Feb 2009, 21 (2) 568-580; DOI: https://doi.org/10.1105/tpc.108.061465

      The PIN auxin efflux transporters, which are themselves regulated by auxin, determine the direction and rate of intercellular auxin flow. This work shows that the auxin regulation of endocytosis, recycling, and plasma membrane accumulation of specific plasma membrane–resident proteins, including some PIN proteins, is dependent on a ubiquitin ligase and on membrane sterols.

G

  1. Galbiati, Massimo

    1. You have accessRestricted Access
      The Future of Science: Food and Water for Life
      Nancy A. Eckardt, Eleonora Cominelli, Massimo Galbiati, Chiara Tonelli
      Plant Cell Feb 2009, 21 (2) 368-372; DOI: https://doi.org/10.1105/tpc.109.066209
  2. Gallois, Jean-Luc

    1. You have accessRestricted Access
      The Arabidopsis Proteasome RPT5 Subunits Are Essential for Gametophyte Development and Show Accession-Dependent Redundancy
      Jean-Luc Gallois, Anouchka Guyon-Debast, Alain Lécureuil, Daniel Vezon, Virginie Carpentier, Sandrine Bonhomme, Philippe Guerche
      Plant Cell Feb 2009, 21 (2) 442-459; DOI: https://doi.org/10.1105/tpc.108.062372

      This work shows that the proteasome Regulatory Particle 5 (RPT5) subunits are essential for male and female gametophyte development. Analysis of mutants for both genes encoding these subunits in two different Arabidopsis accessions also highlights that redundancy between the two RPT5 genes is accession dependent and in particular that the rpt5a mutant phenotype depends on its background.

  3. Gong, Zhizhong

    1. Open Access
      Epigenetic Regulation, Somatic Homologous Recombination, and Abscisic Acid Signaling Are Influenced by DNA Polymerase ϵ Mutation in Arabidopsis
      Haibo Yin, Xia Zhang, Jun Liu, Youqun Wang, Junna He, Tao Yang, Xuhui Hong, Qing Yang, Zhizhong Gong
      Plant Cell Feb 2009, 21 (2) 386-402; DOI: https://doi.org/10.1105/tpc.108.061549

      This work examines an abscisic acid (ABA)–sensitive mutant, which is caused by mutation of DNA polymerase ϵ. This hypomorphic mutation caused increased somatic homologous recombination, sensitivity to DNA-damaging agents, activation of silenced loci, and early flowering, indicating a role for DNA replication enzymes in maintenance of epigenetic states and in ABA signaling.

  4. Guerche, Philippe

    1. You have accessRestricted Access
      The Arabidopsis Proteasome RPT5 Subunits Are Essential for Gametophyte Development and Show Accession-Dependent Redundancy
      Jean-Luc Gallois, Anouchka Guyon-Debast, Alain Lécureuil, Daniel Vezon, Virginie Carpentier, Sandrine Bonhomme, Philippe Guerche
      Plant Cell Feb 2009, 21 (2) 442-459; DOI: https://doi.org/10.1105/tpc.108.062372

      This work shows that the proteasome Regulatory Particle 5 (RPT5) subunits are essential for male and female gametophyte development. Analysis of mutants for both genes encoding these subunits in two different Arabidopsis accessions also highlights that redundancy between the two RPT5 genes is accession dependent and in particular that the rpt5a mutant phenotype depends on its background.

  5. Guyon-Debast, Anouchka

    1. You have accessRestricted Access
      The Arabidopsis Proteasome RPT5 Subunits Are Essential for Gametophyte Development and Show Accession-Dependent Redundancy
      Jean-Luc Gallois, Anouchka Guyon-Debast, Alain Lécureuil, Daniel Vezon, Virginie Carpentier, Sandrine Bonhomme, Philippe Guerche
      Plant Cell Feb 2009, 21 (2) 442-459; DOI: https://doi.org/10.1105/tpc.108.062372

      This work shows that the proteasome Regulatory Particle 5 (RPT5) subunits are essential for male and female gametophyte development. Analysis of mutants for both genes encoding these subunits in two different Arabidopsis accessions also highlights that redundancy between the two RPT5 genes is accession dependent and in particular that the rpt5a mutant phenotype depends on its background.

H

  1. Haughn, George W.

    1. You have accessRestricted Access
      A Novel Fatty Acyl-CoA Synthetase Is Required for Pollen Development and Sporopollenin Biosynthesis in Arabidopsis
      Clarice de Azevedo Souza, Sung Soo Kim, Stefanie Koch, Lucie Kienow, Katja Schneider, Sarah M. McKim, George W. Haughn, Erich Kombrink, Carl J. Douglas
      Plant Cell Feb 2009, 21 (2) 507-525; DOI: https://doi.org/10.1105/tpc.108.062513

      This study implicates an acyl-CoA synthetase that is preferentially expressed in flowers in the sporopollenin biosynthesis pathway in Arabidopsis. ACOS5 was found to localize to the cytoplasm of tapetal cells, to act on medium-chain fatty acids, and to be required for pollen formation.

  2. He, Junna

    1. Open Access
      Epigenetic Regulation, Somatic Homologous Recombination, and Abscisic Acid Signaling Are Influenced by DNA Polymerase ϵ Mutation in Arabidopsis
      Haibo Yin, Xia Zhang, Jun Liu, Youqun Wang, Junna He, Tao Yang, Xuhui Hong, Qing Yang, Zhizhong Gong
      Plant Cell Feb 2009, 21 (2) 386-402; DOI: https://doi.org/10.1105/tpc.108.061549

      This work examines an abscisic acid (ABA)–sensitive mutant, which is caused by mutation of DNA polymerase ϵ. This hypomorphic mutation caused increased somatic homologous recombination, sensitivity to DNA-damaging agents, activation of silenced loci, and early flowering, indicating a role for DNA replication enzymes in maintenance of epigenetic states and in ABA signaling.

  3. Heckmann, Anne B.

    1. You have accessRestricted Access
      GRAS Proteins Form a DNA Binding Complex to Induce Gene Expression during Nodulation Signaling in Medicago truncatula
      Sibylle Hirsch, Jiyoung Kim, Alfonso Muñoz, Anne B. Heckmann, J. Allan Downie, Giles E.D. Oldroyd
      Plant Cell Feb 2009, 21 (2) 545-557; DOI: https://doi.org/10.1105/tpc.108.064501

      Two GRAS domain Nodulation Signaling Pathway proteins, NSP1 and NSP2, from Medicago truncatula form a complex on the promoters of Nod factor–inducible genes. This complex is enhanced upon Nod factor elicitation, and the interaction between NSP1 and NSP2 is necessary for efficient nodulation.

  4. Hirsch, Sibylle

    1. You have accessRestricted Access
      GRAS Proteins Form a DNA Binding Complex to Induce Gene Expression during Nodulation Signaling in Medicago truncatula
      Sibylle Hirsch, Jiyoung Kim, Alfonso Muñoz, Anne B. Heckmann, J. Allan Downie, Giles E.D. Oldroyd
      Plant Cell Feb 2009, 21 (2) 545-557; DOI: https://doi.org/10.1105/tpc.108.064501

      Two GRAS domain Nodulation Signaling Pathway proteins, NSP1 and NSP2, from Medicago truncatula form a complex on the promoters of Nod factor–inducible genes. This complex is enhanced upon Nod factor elicitation, and the interaction between NSP1 and NSP2 is necessary for efficient nodulation.

  5. Hofer, Julie

    1. Open Access
      Tendril-less Regulates Tendril Formation in Pea Leaves
      Julie Hofer, Lynda Turner, Carol Moreau, Mike Ambrose, Peter Isaac, Susan Butcher, James Weller, Adeline Dupin, Marion Dalmais, Christine Le Signor, Abdelhafid Bendahmane, Noel Ellis
      Plant Cell Feb 2009, 21 (2) 420-428; DOI: https://doi.org/10.1105/tpc.108.064071

      The gene that determines the formation of tendrils, novel filamentous leaf organs present in peas and their allies, has been identified as Tendril-less, encoding a Class I homeodomain leucine zipper transcription factor. Characterization of mutants shows that these tendrils are modified leaflets, inhibited from laminar development by the action of the Tendril-less gene.

  6. Hofmann, Andreas

    1. You have accessRestricted Access
      Zea mays Annexins Modulate Cytosolic Free Ca2+ and Generate a Ca2+-Permeable Conductance
      Anuphon Laohavisit, Jennifer C. Mortimer, Vadim Demidchik, Katy M. Coxon, Matthew A. Stancombe, Neil Macpherson, Colin Brownlee, Andreas Hofmann, Alex A.R. Webb, Henk Miedema, Nicholas H. Battey, Julia M. Davies
      Plant Cell Feb 2009, 21 (2) 479-493; DOI: https://doi.org/10.1105/tpc.108.059550

      Annexins are soluble proteins capable of binding to membranes. Annexins purified from maize were found to increase cytosolic free calcium in Arabidopsis protoplasts and form a transport route for calcium, possibly by interacting with an unidentified membrane binding protein. These results implicate annexins in the regulation of cell calcium and hence cell signaling and development.

  7. Hofmann, Nancy R.

    1. You have accessRestricted Access
      Glutaredoxin Functions in Floral Development
      Nancy R. Hofmann
      Plant Cell Feb 2009, 21 (2) 363; DOI: https://doi.org/10.1105/tpc.109.210210
  8. Holmes, James H.

    1. You have accessRestricted Access
      The RPN5 Subunit of the 26s Proteasome Is Essential for Gametogenesis, Sporophyte Development, and Complex Assembly in Arabidopsis
      Adam J. Book, Jan Smalle, Kwang-Hee Lee, Peizhen Yang, Joseph M. Walker, Sarah Casper, James H. Holmes, Laura A. Russo, Zachri W. Buzzinotti, Pablo D. Jenik, Richard D. Vierstra
      Plant Cell Feb 2009, 21 (2) 460-478; DOI: https://doi.org/10.1105/tpc.108.064444

      This study explores the function of two highly conserved isoforms of the Arabidopsis 26S proteasome subunit RPN5. The data point to a specific role for RPN5 in the plant 26S proteasome and suggest that its two isoforms in Arabidopsis have both redundant and unique roles in development.

  9. Hong, Xuhui

    1. Open Access
      Epigenetic Regulation, Somatic Homologous Recombination, and Abscisic Acid Signaling Are Influenced by DNA Polymerase ϵ Mutation in Arabidopsis
      Haibo Yin, Xia Zhang, Jun Liu, Youqun Wang, Junna He, Tao Yang, Xuhui Hong, Qing Yang, Zhizhong Gong
      Plant Cell Feb 2009, 21 (2) 386-402; DOI: https://doi.org/10.1105/tpc.108.061549

      This work examines an abscisic acid (ABA)–sensitive mutant, which is caused by mutation of DNA polymerase ϵ. This hypomorphic mutation caused increased somatic homologous recombination, sensitivity to DNA-damaging agents, activation of silenced loci, and early flowering, indicating a role for DNA replication enzymes in maintenance of epigenetic states and in ABA signaling.

  10. Huang, Chao Feng

    1. You have accessRestricted Access
      A Bacterial-Type ABC Transporter Is Involved in Aluminum Tolerance in Rice
      Chao Feng Huang, Naoki Yamaji, Namiki Mitani, Masahiro Yano, Yoshiaki Nagamura, Jian Feng Ma
      Plant Cell Feb 2009, 21 (2) 655-667; DOI: https://doi.org/10.1105/tpc.108.064543

      Aluminum toxicity is a major factor limiting crop production in acidic soil. This work identifies two genes (STAR1 and STAR2) involved in aluminum tolerance in rice. STAR1 encodes a nucleotide binding domain of a putative ABC transporter. It interacts with STAR2, which encodes a transmembrane domain protein, to form an ABC transporter complex that transports UDP-glucose.

  11. Huteau, Virginie

    1. You have accessRestricted Access
      Genetic Regulation of Meiotic Cross-Overs between Related Genomes in Brassica napus Haploids and Hybrids
      Stéphane D. Nicolas, Martine Leflon, Hervé Monod, Frédérique Eber, Olivier Coriton, Virginie Huteau, Anne-Marie Chèvre, Eric Jenczewski
      Plant Cell Feb 2009, 21 (2) 373-385; DOI: https://doi.org/10.1105/tpc.108.062273

      Precise control of chromosome recombination is vital for conferring genome and meiotic stability and, thus, fitness of sexually reproductive polyploids. This work provides new insights on the genetic system that regulates the number of associations between nonhomologous chromosomes during meiosis of Brassica napus haploids.

  12. Hwang, Inhwan

    1. You have accessRestricted Access
      Drought Stress-Induced Rma1H1, a RING Membrane-Anchor E3 Ubiquitin Ligase Homolog, Regulates Aquaporin Levels via Ubiquitination in Transgenic Arabidopsis Plants
      Hyun Kyung Lee, Seok Keun Cho, Ora Son, Zhengyi Xu, Inhwan Hwang, Woo Taek Kim
      Plant Cell Feb 2009, 21 (2) 622-641; DOI: https://doi.org/10.1105/tpc.108.061994

      The role of ubiquitination in responses to abiotic stresses is not clearly understood. This work shows that overexpression of a hot pepper homolog of a human ubiquitin ligase results in markedly increased tolerance to severe drought stress in transgenic Arabidopsis plants by ubiquitinating the water channel protein aquaporin.

I

  1. Isaac, Peter

    1. Open Access
      Tendril-less Regulates Tendril Formation in Pea Leaves
      Julie Hofer, Lynda Turner, Carol Moreau, Mike Ambrose, Peter Isaac, Susan Butcher, James Weller, Adeline Dupin, Marion Dalmais, Christine Le Signor, Abdelhafid Bendahmane, Noel Ellis
      Plant Cell Feb 2009, 21 (2) 420-428; DOI: https://doi.org/10.1105/tpc.108.064071

      The gene that determines the formation of tendrils, novel filamentous leaf organs present in peas and their allies, has been identified as Tendril-less, encoding a Class I homeodomain leucine zipper transcription factor. Characterization of mutants shows that these tendrils are modified leaflets, inhibited from laminar development by the action of the Tendril-less gene.

J

  1. Jamai, Aziz

    1. You have accessRestricted Access
      Arabidopsis Photorespiratory Serine Hydroxymethyltransferase Activity Requires the Mitochondrial Accumulation of Ferredoxin-Dependent Glutamate Synthase
      Aziz Jamai, Patrice A. Salomé, Stephen H. Schilling, Andreas P.M. Weber, C. Robertson McClung
      Plant Cell Feb 2009, 21 (2) 595-606; DOI: https://doi.org/10.1105/tpc.108.063289

      Photorespiration is the light-stimulated consumption of oxygen and evolution of carbon dioxide that occurs at ambient levels of carbon dioxide. Ferredoxin-dependent Glutamate Synthase, a key enzyme in the photorespiratory cycle previously known to localize in chloroplasts, is shown to occur also in mitochondria, where it interacts with serine hydroxymethyltransferase.

  2. Jenczewski, Eric

    1. You have accessRestricted Access
      Genetic Regulation of Meiotic Cross-Overs between Related Genomes in Brassica napus Haploids and Hybrids
      Stéphane D. Nicolas, Martine Leflon, Hervé Monod, Frédérique Eber, Olivier Coriton, Virginie Huteau, Anne-Marie Chèvre, Eric Jenczewski
      Plant Cell Feb 2009, 21 (2) 373-385; DOI: https://doi.org/10.1105/tpc.108.062273

      Precise control of chromosome recombination is vital for conferring genome and meiotic stability and, thus, fitness of sexually reproductive polyploids. This work provides new insights on the genetic system that regulates the number of associations between nonhomologous chromosomes during meiosis of Brassica napus haploids.

  3. Jenik, Pablo D.

    1. You have accessRestricted Access
      The RPN5 Subunit of the 26s Proteasome Is Essential for Gametogenesis, Sporophyte Development, and Complex Assembly in Arabidopsis
      Adam J. Book, Jan Smalle, Kwang-Hee Lee, Peizhen Yang, Joseph M. Walker, Sarah Casper, James H. Holmes, Laura A. Russo, Zachri W. Buzzinotti, Pablo D. Jenik, Richard D. Vierstra
      Plant Cell Feb 2009, 21 (2) 460-478; DOI: https://doi.org/10.1105/tpc.108.064444

      This study explores the function of two highly conserved isoforms of the Arabidopsis 26S proteasome subunit RPN5. The data point to a specific role for RPN5 in the plant 26S proteasome and suggest that its two isoforms in Arabidopsis have both redundant and unique roles in development.

  4. Jung, Ji-Yul

    1. You have accessRestricted Access
      Ethylene Mediates Response and Tolerance to Potassium Deprivation in Arabidopsis
      Ji-Yul Jung, Ryoung Shin, Daniel P. Schachtman
      Plant Cell Feb 2009, 21 (2) 607-621; DOI: https://doi.org/10.1105/tpc.108.063099

      Plant response to low nutrients is vital for growth and survival. This study shows that the ethylene signaling pathway is induced by potassium deprivation and positively regulates reactive oxygen species production and K+ transporter expression (HAK5) in Arabidopsis roots. Ethylene also enhances plant tolerance to low potassium and modulates root hair elongation and primary root growth.

K

  1. Kamiya, Yuji

    1. You have accessRestricted Access
      Genome-Wide Analysis of Genes Targeted by PHYTOCHROME INTERACTING FACTOR 3-LIKE5 during Seed Germination in Arabidopsis
      Eunkyoo Oh, Hyojin Kang, Shinjiro Yamaguchi, Jeongmoo Park, Doheon Lee, Yuji Kamiya, Giltsu Choi
      Plant Cell Feb 2009, 21 (2) 403-419; DOI: https://doi.org/10.1105/tpc.108.064691

      PIL5 is a phytochrome-interacting bHLH transcription factor that regulates seed germination. This work identifies genes directly targeted by PIL5 through comparison of microarray and ChIP-chip data. The analysis of the target genes shows that PIL5 regulates seed germination by coordinating various hormone signaling pathways and by modifying cell wall properties in imbibed seeds.

  2. Kang, Hyojin

    1. You have accessRestricted Access
      Genome-Wide Analysis of Genes Targeted by PHYTOCHROME INTERACTING FACTOR 3-LIKE5 during Seed Germination in Arabidopsis
      Eunkyoo Oh, Hyojin Kang, Shinjiro Yamaguchi, Jeongmoo Park, Doheon Lee, Yuji Kamiya, Giltsu Choi
      Plant Cell Feb 2009, 21 (2) 403-419; DOI: https://doi.org/10.1105/tpc.108.064691

      PIL5 is a phytochrome-interacting bHLH transcription factor that regulates seed germination. This work identifies genes directly targeted by PIL5 through comparison of microarray and ChIP-chip data. The analysis of the target genes shows that PIL5 regulates seed germination by coordinating various hormone signaling pathways and by modifying cell wall properties in imbibed seeds.

  3. Kang, Seogchan

    1. Open Access
      The ER Chaperone LHS1 Is Involved in Asexual Development and Rice Infection by the Blast Fungus Magnaporthe oryzae
      Mihwa Yi, Myoung-Hwan Chi, Chang Hyun Khang, Sook-Young Park, Seogchan Kang, Barbara Valent, Yong-Hwan Lee
      Plant Cell Feb 2009, 21 (2) 681-695; DOI: https://doi.org/10.1105/tpc.107.055988

      Magnaporthe oryzae LHS1 is an ER protein that functions in the unfolded protein response, as shown in yeast and plant systems. Disruption of the LHS1 gene causes improper processing and secretion of proteins. This disproportionately impacts early plant colonization steps in the compatible interaction and induction of plant defenses in the incompatible interaction.

  4. Khang, Chang Hyun

    1. Open Access
      The ER Chaperone LHS1 Is Involved in Asexual Development and Rice Infection by the Blast Fungus Magnaporthe oryzae
      Mihwa Yi, Myoung-Hwan Chi, Chang Hyun Khang, Sook-Young Park, Seogchan Kang, Barbara Valent, Yong-Hwan Lee
      Plant Cell Feb 2009, 21 (2) 681-695; DOI: https://doi.org/10.1105/tpc.107.055988

      Magnaporthe oryzae LHS1 is an ER protein that functions in the unfolded protein response, as shown in yeast and plant systems. Disruption of the LHS1 gene causes improper processing and secretion of proteins. This disproportionately impacts early plant colonization steps in the compatible interaction and induction of plant defenses in the incompatible interaction.

  5. Kienow, Lucie

    1. You have accessRestricted Access
      A Novel Fatty Acyl-CoA Synthetase Is Required for Pollen Development and Sporopollenin Biosynthesis in Arabidopsis
      Clarice de Azevedo Souza, Sung Soo Kim, Stefanie Koch, Lucie Kienow, Katja Schneider, Sarah M. McKim, George W. Haughn, Erich Kombrink, Carl J. Douglas
      Plant Cell Feb 2009, 21 (2) 507-525; DOI: https://doi.org/10.1105/tpc.108.062513

      This study implicates an acyl-CoA synthetase that is preferentially expressed in flowers in the sporopollenin biosynthesis pathway in Arabidopsis. ACOS5 was found to localize to the cytoplasm of tapetal cells, to act on medium-chain fatty acids, and to be required for pollen formation.

  6. Kim, Jiyoung

    1. You have accessRestricted Access
      GRAS Proteins Form a DNA Binding Complex to Induce Gene Expression during Nodulation Signaling in Medicago truncatula
      Sibylle Hirsch, Jiyoung Kim, Alfonso Muñoz, Anne B. Heckmann, J. Allan Downie, Giles E.D. Oldroyd
      Plant Cell Feb 2009, 21 (2) 545-557; DOI: https://doi.org/10.1105/tpc.108.064501

      Two GRAS domain Nodulation Signaling Pathway proteins, NSP1 and NSP2, from Medicago truncatula form a complex on the promoters of Nod factor–inducible genes. This complex is enhanced upon Nod factor elicitation, and the interaction between NSP1 and NSP2 is necessary for efficient nodulation.

  7. Kim, Sung Soo

    1. You have accessRestricted Access
      A Novel Fatty Acyl-CoA Synthetase Is Required for Pollen Development and Sporopollenin Biosynthesis in Arabidopsis
      Clarice de Azevedo Souza, Sung Soo Kim, Stefanie Koch, Lucie Kienow, Katja Schneider, Sarah M. McKim, George W. Haughn, Erich Kombrink, Carl J. Douglas
      Plant Cell Feb 2009, 21 (2) 507-525; DOI: https://doi.org/10.1105/tpc.108.062513

      This study implicates an acyl-CoA synthetase that is preferentially expressed in flowers in the sporopollenin biosynthesis pathway in Arabidopsis. ACOS5 was found to localize to the cytoplasm of tapetal cells, to act on medium-chain fatty acids, and to be required for pollen formation.

  8. Kim, Woo Taek

    1. You have accessRestricted Access
      Drought Stress-Induced Rma1H1, a RING Membrane-Anchor E3 Ubiquitin Ligase Homolog, Regulates Aquaporin Levels via Ubiquitination in Transgenic Arabidopsis Plants
      Hyun Kyung Lee, Seok Keun Cho, Ora Son, Zhengyi Xu, Inhwan Hwang, Woo Taek Kim
      Plant Cell Feb 2009, 21 (2) 622-641; DOI: https://doi.org/10.1105/tpc.108.061994

      The role of ubiquitination in responses to abiotic stresses is not clearly understood. This work shows that overexpression of a hot pepper homolog of a human ubiquitin ligase results in markedly increased tolerance to severe drought stress in transgenic Arabidopsis plants by ubiquitinating the water channel protein aquaporin.

  9. Koch, Stefanie

    1. You have accessRestricted Access
      A Novel Fatty Acyl-CoA Synthetase Is Required for Pollen Development and Sporopollenin Biosynthesis in Arabidopsis
      Clarice de Azevedo Souza, Sung Soo Kim, Stefanie Koch, Lucie Kienow, Katja Schneider, Sarah M. McKim, George W. Haughn, Erich Kombrink, Carl J. Douglas
      Plant Cell Feb 2009, 21 (2) 507-525; DOI: https://doi.org/10.1105/tpc.108.062513

      This study implicates an acyl-CoA synthetase that is preferentially expressed in flowers in the sporopollenin biosynthesis pathway in Arabidopsis. ACOS5 was found to localize to the cytoplasm of tapetal cells, to act on medium-chain fatty acids, and to be required for pollen formation.

  10. Kombrink, Erich

    1. You have accessRestricted Access
      A Novel Fatty Acyl-CoA Synthetase Is Required for Pollen Development and Sporopollenin Biosynthesis in Arabidopsis
      Clarice de Azevedo Souza, Sung Soo Kim, Stefanie Koch, Lucie Kienow, Katja Schneider, Sarah M. McKim, George W. Haughn, Erich Kombrink, Carl J. Douglas
      Plant Cell Feb 2009, 21 (2) 507-525; DOI: https://doi.org/10.1105/tpc.108.062513

      This study implicates an acyl-CoA synthetase that is preferentially expressed in flowers in the sporopollenin biosynthesis pathway in Arabidopsis. ACOS5 was found to localize to the cytoplasm of tapetal cells, to act on medium-chain fatty acids, and to be required for pollen formation.

L

  1. Laohavisit, Anuphon

    1. You have accessRestricted Access
      Zea mays Annexins Modulate Cytosolic Free Ca2+ and Generate a Ca2+-Permeable Conductance
      Anuphon Laohavisit, Jennifer C. Mortimer, Vadim Demidchik, Katy M. Coxon, Matthew A. Stancombe, Neil Macpherson, Colin Brownlee, Andreas Hofmann, Alex A.R. Webb, Henk Miedema, Nicholas H. Battey, Julia M. Davies
      Plant Cell Feb 2009, 21 (2) 479-493; DOI: https://doi.org/10.1105/tpc.108.059550

      Annexins are soluble proteins capable of binding to membranes. Annexins purified from maize were found to increase cytosolic free calcium in Arabidopsis protoplasts and form a transport route for calcium, possibly by interacting with an unidentified membrane binding protein. These results implicate annexins in the regulation of cell calcium and hence cell signaling and development.

  2. Laporte, Philippe

    1. You have accessRestricted Access
      A Novel Plant Leucine-Rich Repeat Receptor Kinase Regulates the Response of Medicago truncatula Roots to Salt Stress
      Laura de Lorenzo, Francisco Merchan, Philippe Laporte, Richard Thompson, Jonathan Clarke, Carolina Sousa, Martín Crespi
      Plant Cell Feb 2009, 21 (2) 668-680; DOI: https://doi.org/10.1105/tpc.108.059576

      This work examines a leucine-rich repeat-like kinase (RLK) induced in response to salt stress in the model legume Medicago truncatula. Mutants in this gene showed an impaired physiological and molecular response to high salt and accumulate less salt in their tissues. This RLK plays a key role in the adaptation of M. truncatula to salt stress.

  3. Lauri, Andrea

    1. You have accessRestricted Access
      Nuclear Activity of ROXY1, a Glutaredoxin Interacting with TGA Factors, Is Required for Petal Development in Arabidopsis thaliana
      Shutian Li, Andrea Lauri, Mark Ziemann, Andrea Busch, Mrinal Bhave, Sabine Zachgo
      Plant Cell Feb 2009, 21 (2) 429-441; DOI: https://doi.org/10.1105/tpc.108.064477

      Glutaredoxins are ubiquitous glutathione-dependent oxidoreductases that are associated mainly with redox-regulated processes participating in stress responses. This work shows that ROXY1, a CC-type glutaredoxin, acts in the nucleus to influence petal primordia initiation and later petal morphogenesis, likely by modifying TGA transcription factors posttranslationally.

  4. Lécureuil, Alain

    1. You have accessRestricted Access
      The Arabidopsis Proteasome RPT5 Subunits Are Essential for Gametophyte Development and Show Accession-Dependent Redundancy
      Jean-Luc Gallois, Anouchka Guyon-Debast, Alain Lécureuil, Daniel Vezon, Virginie Carpentier, Sandrine Bonhomme, Philippe Guerche
      Plant Cell Feb 2009, 21 (2) 442-459; DOI: https://doi.org/10.1105/tpc.108.062372

      This work shows that the proteasome Regulatory Particle 5 (RPT5) subunits are essential for male and female gametophyte development. Analysis of mutants for both genes encoding these subunits in two different Arabidopsis accessions also highlights that redundancy between the two RPT5 genes is accession dependent and in particular that the rpt5a mutant phenotype depends on its background.

  5. Lee, Doheon

    1. You have accessRestricted Access
      Genome-Wide Analysis of Genes Targeted by PHYTOCHROME INTERACTING FACTOR 3-LIKE5 during Seed Germination in Arabidopsis
      Eunkyoo Oh, Hyojin Kang, Shinjiro Yamaguchi, Jeongmoo Park, Doheon Lee, Yuji Kamiya, Giltsu Choi
      Plant Cell Feb 2009, 21 (2) 403-419; DOI: https://doi.org/10.1105/tpc.108.064691

      PIL5 is a phytochrome-interacting bHLH transcription factor that regulates seed germination. This work identifies genes directly targeted by PIL5 through comparison of microarray and ChIP-chip data. The analysis of the target genes shows that PIL5 regulates seed germination by coordinating various hormone signaling pathways and by modifying cell wall properties in imbibed seeds.

  6. Lee, Hyun Kyung

    1. You have accessRestricted Access
      Drought Stress-Induced Rma1H1, a RING Membrane-Anchor E3 Ubiquitin Ligase Homolog, Regulates Aquaporin Levels via Ubiquitination in Transgenic Arabidopsis Plants
      Hyun Kyung Lee, Seok Keun Cho, Ora Son, Zhengyi Xu, Inhwan Hwang, Woo Taek Kim
      Plant Cell Feb 2009, 21 (2) 622-641; DOI: https://doi.org/10.1105/tpc.108.061994

      The role of ubiquitination in responses to abiotic stresses is not clearly understood. This work shows that overexpression of a hot pepper homolog of a human ubiquitin ligase results in markedly increased tolerance to severe drought stress in transgenic Arabidopsis plants by ubiquitinating the water channel protein aquaporin.

  7. Lee, Kwang-Hee

    1. You have accessRestricted Access
      The RPN5 Subunit of the 26s Proteasome Is Essential for Gametogenesis, Sporophyte Development, and Complex Assembly in Arabidopsis
      Adam J. Book, Jan Smalle, Kwang-Hee Lee, Peizhen Yang, Joseph M. Walker, Sarah Casper, James H. Holmes, Laura A. Russo, Zachri W. Buzzinotti, Pablo D. Jenik, Richard D. Vierstra
      Plant Cell Feb 2009, 21 (2) 460-478; DOI: https://doi.org/10.1105/tpc.108.064444

      This study explores the function of two highly conserved isoforms of the Arabidopsis 26S proteasome subunit RPN5. The data point to a specific role for RPN5 in the plant 26S proteasome and suggest that its two isoforms in Arabidopsis have both redundant and unique roles in development.

  8. Lee, Yong-Hwan

    1. Open Access
      The ER Chaperone LHS1 Is Involved in Asexual Development and Rice Infection by the Blast Fungus Magnaporthe oryzae
      Mihwa Yi, Myoung-Hwan Chi, Chang Hyun Khang, Sook-Young Park, Seogchan Kang, Barbara Valent, Yong-Hwan Lee
      Plant Cell Feb 2009, 21 (2) 681-695; DOI: https://doi.org/10.1105/tpc.107.055988

      Magnaporthe oryzae LHS1 is an ER protein that functions in the unfolded protein response, as shown in yeast and plant systems. Disruption of the LHS1 gene causes improper processing and secretion of proteins. This disproportionately impacts early plant colonization steps in the compatible interaction and induction of plant defenses in the incompatible interaction.

  9. Leflon, Martine

    1. You have accessRestricted Access
      Genetic Regulation of Meiotic Cross-Overs between Related Genomes in Brassica napus Haploids and Hybrids
      Stéphane D. Nicolas, Martine Leflon, Hervé Monod, Frédérique Eber, Olivier Coriton, Virginie Huteau, Anne-Marie Chèvre, Eric Jenczewski
      Plant Cell Feb 2009, 21 (2) 373-385; DOI: https://doi.org/10.1105/tpc.108.062273

      Precise control of chromosome recombination is vital for conferring genome and meiotic stability and, thus, fitness of sexually reproductive polyploids. This work provides new insights on the genetic system that regulates the number of associations between nonhomologous chromosomes during meiosis of Brassica napus haploids.

  10. Le Signor, Christine

    1. Open Access
      Tendril-less Regulates Tendril Formation in Pea Leaves
      Julie Hofer, Lynda Turner, Carol Moreau, Mike Ambrose, Peter Isaac, Susan Butcher, James Weller, Adeline Dupin, Marion Dalmais, Christine Le Signor, Abdelhafid Bendahmane, Noel Ellis
      Plant Cell Feb 2009, 21 (2) 420-428; DOI: https://doi.org/10.1105/tpc.108.064071

      The gene that determines the formation of tendrils, novel filamentous leaf organs present in peas and their allies, has been identified as Tendril-less, encoding a Class I homeodomain leucine zipper transcription factor. Characterization of mutants shows that these tendrils are modified leaflets, inhibited from laminar development by the action of the Tendril-less gene.

  11. Li, Guangming

    1. Open Access
      The E3 Ubiquitin Ligase SCFTIR1/AFB and Membrane Sterols Play Key Roles in Auxin Regulation of Endocytosis, Recycling, and Plasma Membrane Accumulation of the Auxin Efflux Transporter PIN2 in Arabidopsis thaliana
      Jianwei Pan, Shozo Fujioka, Jianling Peng, Jianghua Chen, Guangming Li, Rujin Chen
      Plant Cell Feb 2009, 21 (2) 568-580; DOI: https://doi.org/10.1105/tpc.108.061465

      The PIN auxin efflux transporters, which are themselves regulated by auxin, determine the direction and rate of intercellular auxin flow. This work shows that the auxin regulation of endocytosis, recycling, and plasma membrane accumulation of specific plasma membrane–resident proteins, including some PIN proteins, is dependent on a ubiquitin ligase and on membrane sterols.

  12. Li, Jigang

    1. You have accessRestricted Access
      Phytochrome A Mediates Rapid Red Light–Induced Phosphorylation of Arabidopsis FAR-RED ELONGATED HYPOCOTYL1 in a Low Fluence Response
      Yunping Shen, Zhenzhen Zhou, Suhua Feng, Jigang Li, Anna Tan-Wilson, Li-Jia Qu, Haiyang Wang, Xing Wang Deng
      Plant Cell Feb 2009, 21 (2) 494-506; DOI: https://doi.org/10.1105/tpc.108.061259

      This work analyzes the protein–protein interactions between phytochrome A (phyA) and two far-red light signaling proteins (FHY1 and FHL). In addition, it finds that phyA exhibits kinase activity toward FHY1 in vitro and that FHY1 undergoes phyA-dependent phosphorylation during dark to red light transition, revealing a role of phyA in regulating this low fluence response.

  13. Li, Shutian

    1. You have accessRestricted Access
      Nuclear Activity of ROXY1, a Glutaredoxin Interacting with TGA Factors, Is Required for Petal Development in Arabidopsis thaliana
      Shutian Li, Andrea Lauri, Mark Ziemann, Andrea Busch, Mrinal Bhave, Sabine Zachgo
      Plant Cell Feb 2009, 21 (2) 429-441; DOI: https://doi.org/10.1105/tpc.108.064477

      Glutaredoxins are ubiquitous glutathione-dependent oxidoreductases that are associated mainly with redox-regulated processes participating in stress responses. This work shows that ROXY1, a CC-type glutaredoxin, acts in the nucleus to influence petal primordia initiation and later petal morphogenesis, likely by modifying TGA transcription factors posttranslationally.

  14. Liu, Jun

    1. Open Access
      Epigenetic Regulation, Somatic Homologous Recombination, and Abscisic Acid Signaling Are Influenced by DNA Polymerase ϵ Mutation in Arabidopsis
      Haibo Yin, Xia Zhang, Jun Liu, Youqun Wang, Junna He, Tao Yang, Xuhui Hong, Qing Yang, Zhizhong Gong
      Plant Cell Feb 2009, 21 (2) 386-402; DOI: https://doi.org/10.1105/tpc.108.061549

      This work examines an abscisic acid (ABA)–sensitive mutant, which is caused by mutation of DNA polymerase ϵ. This hypomorphic mutation caused increased somatic homologous recombination, sensitivity to DNA-damaging agents, activation of silenced loci, and early flowering, indicating a role for DNA replication enzymes in maintenance of epigenetic states and in ABA signaling.

M

  1. Ma, Jian Feng

    1. You have accessRestricted Access
      A Bacterial-Type ABC Transporter Is Involved in Aluminum Tolerance in Rice
      Chao Feng Huang, Naoki Yamaji, Namiki Mitani, Masahiro Yano, Yoshiaki Nagamura, Jian Feng Ma
      Plant Cell Feb 2009, 21 (2) 655-667; DOI: https://doi.org/10.1105/tpc.108.064543

      Aluminum toxicity is a major factor limiting crop production in acidic soil. This work identifies two genes (STAR1 and STAR2) involved in aluminum tolerance in rice. STAR1 encodes a nucleotide binding domain of a putative ABC transporter. It interacts with STAR2, which encodes a transmembrane domain protein, to form an ABC transporter complex that transports UDP-glucose.

  2. Macpherson, Neil

    1. You have accessRestricted Access
      Zea mays Annexins Modulate Cytosolic Free Ca2+ and Generate a Ca2+-Permeable Conductance
      Anuphon Laohavisit, Jennifer C. Mortimer, Vadim Demidchik, Katy M. Coxon, Matthew A. Stancombe, Neil Macpherson, Colin Brownlee, Andreas Hofmann, Alex A.R. Webb, Henk Miedema, Nicholas H. Battey, Julia M. Davies
      Plant Cell Feb 2009, 21 (2) 479-493; DOI: https://doi.org/10.1105/tpc.108.059550

      Annexins are soluble proteins capable of binding to membranes. Annexins purified from maize were found to increase cytosolic free calcium in Arabidopsis protoplasts and form a transport route for calcium, possibly by interacting with an unidentified membrane binding protein. These results implicate annexins in the regulation of cell calcium and hence cell signaling and development.

  3. Maule, Andrew J.

    1. You have accessRestricted Access
      An Arabidopsis GPI-Anchor Plasmodesmal Neck Protein with Callose Binding Activity and Potential to Regulate Cell-to-Cell Trafficking
      Clare Simpson, Carole Thomas, Kim Findlay, Emmanuelle Bayer, Andrew J. Maule
      Plant Cell Feb 2009, 21 (2) 581-594; DOI: https://doi.org/10.1105/tpc.108.060145

      This work contributes to our understanding of plasmodesmal (Pd) structure and function through the identification of a novel Pd protein. This protein shows binding to callose, a component important in Pd regulation, and accordingly the protein appears to influence molecular flux through these cell-to-cell communication channels.

    2. You have accessRestricted Access
      The Cytosolic Protein Response as a Subcomponent of the Wider Heat Shock Response in Arabidopsis
      Akiko Sugio, René Dreos, Frederic Aparicio, Andrew J. Maule
      Plant Cell Feb 2009, 21 (2) 642-654; DOI: https://doi.org/10.1105/tpc.108.062596

      Accumulation of misfolded protein in the cytosol of Arabidopsis, for example following heat shock, activates a stress response that includes a range of specific transcriptional events. This response was found to be partly regulated by the transcription factor HsfA2.

  4. McClung, C. Robertson

    1. You have accessRestricted Access
      Arabidopsis Photorespiratory Serine Hydroxymethyltransferase Activity Requires the Mitochondrial Accumulation of Ferredoxin-Dependent Glutamate Synthase
      Aziz Jamai, Patrice A. Salomé, Stephen H. Schilling, Andreas P.M. Weber, C. Robertson McClung
      Plant Cell Feb 2009, 21 (2) 595-606; DOI: https://doi.org/10.1105/tpc.108.063289

      Photorespiration is the light-stimulated consumption of oxygen and evolution of carbon dioxide that occurs at ambient levels of carbon dioxide. Ferredoxin-dependent Glutamate Synthase, a key enzyme in the photorespiratory cycle previously known to localize in chloroplasts, is shown to occur also in mitochondria, where it interacts with serine hydroxymethyltransferase.

  5. McKim, Sarah M.

    1. You have accessRestricted Access
      A Novel Fatty Acyl-CoA Synthetase Is Required for Pollen Development and Sporopollenin Biosynthesis in Arabidopsis
      Clarice de Azevedo Souza, Sung Soo Kim, Stefanie Koch, Lucie Kienow, Katja Schneider, Sarah M. McKim, George W. Haughn, Erich Kombrink, Carl J. Douglas
      Plant Cell Feb 2009, 21 (2) 507-525; DOI: https://doi.org/10.1105/tpc.108.062513

      This study implicates an acyl-CoA synthetase that is preferentially expressed in flowers in the sporopollenin biosynthesis pathway in Arabidopsis. ACOS5 was found to localize to the cytoplasm of tapetal cells, to act on medium-chain fatty acids, and to be required for pollen formation.

  6. Merchan, Francisco

    1. You have accessRestricted Access
      A Novel Plant Leucine-Rich Repeat Receptor Kinase Regulates the Response of Medicago truncatula Roots to Salt Stress
      Laura de Lorenzo, Francisco Merchan, Philippe Laporte, Richard Thompson, Jonathan Clarke, Carolina Sousa, Martín Crespi
      Plant Cell Feb 2009, 21 (2) 668-680; DOI: https://doi.org/10.1105/tpc.108.059576

      This work examines a leucine-rich repeat-like kinase (RLK) induced in response to salt stress in the model legume Medicago truncatula. Mutants in this gene showed an impaired physiological and molecular response to high salt and accumulate less salt in their tissues. This RLK plays a key role in the adaptation of M. truncatula to salt stress.

  7. Miedema, Henk

    1. You have accessRestricted Access
      Zea mays Annexins Modulate Cytosolic Free Ca2+ and Generate a Ca2+-Permeable Conductance
      Anuphon Laohavisit, Jennifer C. Mortimer, Vadim Demidchik, Katy M. Coxon, Matthew A. Stancombe, Neil Macpherson, Colin Brownlee, Andreas Hofmann, Alex A.R. Webb, Henk Miedema, Nicholas H. Battey, Julia M. Davies
      Plant Cell Feb 2009, 21 (2) 479-493; DOI: https://doi.org/10.1105/tpc.108.059550

      Annexins are soluble proteins capable of binding to membranes. Annexins purified from maize were found to increase cytosolic free calcium in Arabidopsis protoplasts and form a transport route for calcium, possibly by interacting with an unidentified membrane binding protein. These results implicate annexins in the regulation of cell calcium and hence cell signaling and development.

  8. Mitani, Namiki

    1. You have accessRestricted Access
      A Bacterial-Type ABC Transporter Is Involved in Aluminum Tolerance in Rice
      Chao Feng Huang, Naoki Yamaji, Namiki Mitani, Masahiro Yano, Yoshiaki Nagamura, Jian Feng Ma
      Plant Cell Feb 2009, 21 (2) 655-667; DOI: https://doi.org/10.1105/tpc.108.064543

      Aluminum toxicity is a major factor limiting crop production in acidic soil. This work identifies two genes (STAR1 and STAR2) involved in aluminum tolerance in rice. STAR1 encodes a nucleotide binding domain of a putative ABC transporter. It interacts with STAR2, which encodes a transmembrane domain protein, to form an ABC transporter complex that transports UDP-glucose.

  9. Monod, Hervé

    1. You have accessRestricted Access
      Genetic Regulation of Meiotic Cross-Overs between Related Genomes in Brassica napus Haploids and Hybrids
      Stéphane D. Nicolas, Martine Leflon, Hervé Monod, Frédérique Eber, Olivier Coriton, Virginie Huteau, Anne-Marie Chèvre, Eric Jenczewski
      Plant Cell Feb 2009, 21 (2) 373-385; DOI: https://doi.org/10.1105/tpc.108.062273

      Precise control of chromosome recombination is vital for conferring genome and meiotic stability and, thus, fitness of sexually reproductive polyploids. This work provides new insights on the genetic system that regulates the number of associations between nonhomologous chromosomes during meiosis of Brassica napus haploids.

  10. Moreau, Carol

    1. Open Access
      Tendril-less Regulates Tendril Formation in Pea Leaves
      Julie Hofer, Lynda Turner, Carol Moreau, Mike Ambrose, Peter Isaac, Susan Butcher, James Weller, Adeline Dupin, Marion Dalmais, Christine Le Signor, Abdelhafid Bendahmane, Noel Ellis
      Plant Cell Feb 2009, 21 (2) 420-428; DOI: https://doi.org/10.1105/tpc.108.064071

      The gene that determines the formation of tendrils, novel filamentous leaf organs present in peas and their allies, has been identified as Tendril-less, encoding a Class I homeodomain leucine zipper transcription factor. Characterization of mutants shows that these tendrils are modified leaflets, inhibited from laminar development by the action of the Tendril-less gene.

  11. Mortimer, Jennifer C.

    1. You have accessRestricted Access
      Zea mays Annexins Modulate Cytosolic Free Ca2+ and Generate a Ca2+-Permeable Conductance
      Anuphon Laohavisit, Jennifer C. Mortimer, Vadim Demidchik, Katy M. Coxon, Matthew A. Stancombe, Neil Macpherson, Colin Brownlee, Andreas Hofmann, Alex A.R. Webb, Henk Miedema, Nicholas H. Battey, Julia M. Davies
      Plant Cell Feb 2009, 21 (2) 479-493; DOI: https://doi.org/10.1105/tpc.108.059550

      Annexins are soluble proteins capable of binding to membranes. Annexins purified from maize were found to increase cytosolic free calcium in Arabidopsis protoplasts and form a transport route for calcium, possibly by interacting with an unidentified membrane binding protein. These results implicate annexins in the regulation of cell calcium and hence cell signaling and development.

  12. Muñoz, Alfonso

    1. You have accessRestricted Access
      GRAS Proteins Form a DNA Binding Complex to Induce Gene Expression during Nodulation Signaling in Medicago truncatula
      Sibylle Hirsch, Jiyoung Kim, Alfonso Muñoz, Anne B. Heckmann, J. Allan Downie, Giles E.D. Oldroyd
      Plant Cell Feb 2009, 21 (2) 545-557; DOI: https://doi.org/10.1105/tpc.108.064501

      Two GRAS domain Nodulation Signaling Pathway proteins, NSP1 and NSP2, from Medicago truncatula form a complex on the promoters of Nod factor–inducible genes. This complex is enhanced upon Nod factor elicitation, and the interaction between NSP1 and NSP2 is necessary for efficient nodulation.

N

  1. Nagamura, Yoshiaki

    1. You have accessRestricted Access
      A Bacterial-Type ABC Transporter Is Involved in Aluminum Tolerance in Rice
      Chao Feng Huang, Naoki Yamaji, Namiki Mitani, Masahiro Yano, Yoshiaki Nagamura, Jian Feng Ma
      Plant Cell Feb 2009, 21 (2) 655-667; DOI: https://doi.org/10.1105/tpc.108.064543

      Aluminum toxicity is a major factor limiting crop production in acidic soil. This work identifies two genes (STAR1 and STAR2) involved in aluminum tolerance in rice. STAR1 encodes a nucleotide binding domain of a putative ABC transporter. It interacts with STAR2, which encodes a transmembrane domain protein, to form an ABC transporter complex that transports UDP-glucose.

  2. Nicolas, Stéphane D.

    1. You have accessRestricted Access
      Genetic Regulation of Meiotic Cross-Overs between Related Genomes in Brassica napus Haploids and Hybrids
      Stéphane D. Nicolas, Martine Leflon, Hervé Monod, Frédérique Eber, Olivier Coriton, Virginie Huteau, Anne-Marie Chèvre, Eric Jenczewski
      Plant Cell Feb 2009, 21 (2) 373-385; DOI: https://doi.org/10.1105/tpc.108.062273

      Precise control of chromosome recombination is vital for conferring genome and meiotic stability and, thus, fitness of sexually reproductive polyploids. This work provides new insights on the genetic system that regulates the number of associations between nonhomologous chromosomes during meiosis of Brassica napus haploids.

  3. Nielsen, Erik

    1. You have accessRestricted Access
      The Rab GTPase RabA4d Regulates Pollen Tube Tip Growth in Arabidopsis thaliana
      Amy L. Szumlanski, Erik Nielsen
      Plant Cell Feb 2009, 21 (2) 526-544; DOI: https://doi.org/10.1105/tpc.108.060277

      Pollen tubes are characterized by a polarized form of cell growth and a requirement for highly regulated intracellular trafficking. Here, we show that RabA4d, a pollen-specific member of the RabA family of Rab GTPase proteins, is necessary for normal pollen tube growth. The loss of this gene leads to dramatic changes in pollen tube morphology and functionality.

O

  1. Oh, Eunkyoo

    1. You have accessRestricted Access
      Genome-Wide Analysis of Genes Targeted by PHYTOCHROME INTERACTING FACTOR 3-LIKE5 during Seed Germination in Arabidopsis
      Eunkyoo Oh, Hyojin Kang, Shinjiro Yamaguchi, Jeongmoo Park, Doheon Lee, Yuji Kamiya, Giltsu Choi
      Plant Cell Feb 2009, 21 (2) 403-419; DOI: https://doi.org/10.1105/tpc.108.064691

      PIL5 is a phytochrome-interacting bHLH transcription factor that regulates seed germination. This work identifies genes directly targeted by PIL5 through comparison of microarray and ChIP-chip data. The analysis of the target genes shows that PIL5 regulates seed germination by coordinating various hormone signaling pathways and by modifying cell wall properties in imbibed seeds.

  2. Oldroyd, Giles E.D.

    1. You have accessRestricted Access
      GRAS Proteins Form a DNA Binding Complex to Induce Gene Expression during Nodulation Signaling in Medicago truncatula
      Sibylle Hirsch, Jiyoung Kim, Alfonso Muñoz, Anne B. Heckmann, J. Allan Downie, Giles E.D. Oldroyd
      Plant Cell Feb 2009, 21 (2) 545-557; DOI: https://doi.org/10.1105/tpc.108.064501

      Two GRAS domain Nodulation Signaling Pathway proteins, NSP1 and NSP2, from Medicago truncatula form a complex on the promoters of Nod factor–inducible genes. This complex is enhanced upon Nod factor elicitation, and the interaction between NSP1 and NSP2 is necessary for efficient nodulation.

P

  1. Pan, Jianwei

    1. Open Access
      The E3 Ubiquitin Ligase SCFTIR1/AFB and Membrane Sterols Play Key Roles in Auxin Regulation of Endocytosis, Recycling, and Plasma Membrane Accumulation of the Auxin Efflux Transporter PIN2 in Arabidopsis thaliana
      Jianwei Pan, Shozo Fujioka, Jianling Peng, Jianghua Chen, Guangming Li, Rujin Chen
      Plant Cell Feb 2009, 21 (2) 568-580; DOI: https://doi.org/10.1105/tpc.108.061465

      The PIN auxin efflux transporters, which are themselves regulated by auxin, determine the direction and rate of intercellular auxin flow. This work shows that the auxin regulation of endocytosis, recycling, and plasma membrane accumulation of specific plasma membrane–resident proteins, including some PIN proteins, is dependent on a ubiquitin ligase and on membrane sterols.

  2. Park, Jeongmoo

    1. You have accessRestricted Access
      Genome-Wide Analysis of Genes Targeted by PHYTOCHROME INTERACTING FACTOR 3-LIKE5 during Seed Germination in Arabidopsis
      Eunkyoo Oh, Hyojin Kang, Shinjiro Yamaguchi, Jeongmoo Park, Doheon Lee, Yuji Kamiya, Giltsu Choi
      Plant Cell Feb 2009, 21 (2) 403-419; DOI: https://doi.org/10.1105/tpc.108.064691

      PIL5 is a phytochrome-interacting bHLH transcription factor that regulates seed germination. This work identifies genes directly targeted by PIL5 through comparison of microarray and ChIP-chip data. The analysis of the target genes shows that PIL5 regulates seed germination by coordinating various hormone signaling pathways and by modifying cell wall properties in imbibed seeds.

  3. Park, Sook-Young

    1. Open Access
      The ER Chaperone LHS1 Is Involved in Asexual Development and Rice Infection by the Blast Fungus Magnaporthe oryzae
      Mihwa Yi, Myoung-Hwan Chi, Chang Hyun Khang, Sook-Young Park, Seogchan Kang, Barbara Valent, Yong-Hwan Lee
      Plant Cell Feb 2009, 21 (2) 681-695; DOI: https://doi.org/10.1105/tpc.107.055988

      Magnaporthe oryzae LHS1 is an ER protein that functions in the unfolded protein response, as shown in yeast and plant systems. Disruption of the LHS1 gene causes improper processing and secretion of proteins. This disproportionately impacts early plant colonization steps in the compatible interaction and induction of plant defenses in the incompatible interaction.

  4. Peng, Jianling

    1. Open Access
      The E3 Ubiquitin Ligase SCFTIR1/AFB and Membrane Sterols Play Key Roles in Auxin Regulation of Endocytosis, Recycling, and Plasma Membrane Accumulation of the Auxin Efflux Transporter PIN2 in Arabidopsis thaliana
      Jianwei Pan, Shozo Fujioka, Jianling Peng, Jianghua Chen, Guangming Li, Rujin Chen
      Plant Cell Feb 2009, 21 (2) 568-580; DOI: https://doi.org/10.1105/tpc.108.061465

      The PIN auxin efflux transporters, which are themselves regulated by auxin, determine the direction and rate of intercellular auxin flow. This work shows that the auxin regulation of endocytosis, recycling, and plasma membrane accumulation of specific plasma membrane–resident proteins, including some PIN proteins, is dependent on a ubiquitin ligase and on membrane sterols.

Q

  1. Qu, Li-Jia

    1. You have accessRestricted Access
      Phytochrome A Mediates Rapid Red Light–Induced Phosphorylation of Arabidopsis FAR-RED ELONGATED HYPOCOTYL1 in a Low Fluence Response
      Yunping Shen, Zhenzhen Zhou, Suhua Feng, Jigang Li, Anna Tan-Wilson, Li-Jia Qu, Haiyang Wang, Xing Wang Deng
      Plant Cell Feb 2009, 21 (2) 494-506; DOI: https://doi.org/10.1105/tpc.108.061259

      This work analyzes the protein–protein interactions between phytochrome A (phyA) and two far-red light signaling proteins (FHY1 and FHL). In addition, it finds that phyA exhibits kinase activity toward FHY1 in vitro and that FHY1 undergoes phyA-dependent phosphorylation during dark to red light transition, revealing a role of phyA in regulating this low fluence response.

R

  1. Russo, Laura A.

    1. You have accessRestricted Access
      The RPN5 Subunit of the 26s Proteasome Is Essential for Gametogenesis, Sporophyte Development, and Complex Assembly in Arabidopsis
      Adam J. Book, Jan Smalle, Kwang-Hee Lee, Peizhen Yang, Joseph M. Walker, Sarah Casper, James H. Holmes, Laura A. Russo, Zachri W. Buzzinotti, Pablo D. Jenik, Richard D. Vierstra
      Plant Cell Feb 2009, 21 (2) 460-478; DOI: https://doi.org/10.1105/tpc.108.064444

      This study explores the function of two highly conserved isoforms of the Arabidopsis 26S proteasome subunit RPN5. The data point to a specific role for RPN5 in the plant 26S proteasome and suggest that its two isoforms in Arabidopsis have both redundant and unique roles in development.

S

  1. Salomé, Patrice A.

    1. You have accessRestricted Access
      Arabidopsis Photorespiratory Serine Hydroxymethyltransferase Activity Requires the Mitochondrial Accumulation of Ferredoxin-Dependent Glutamate Synthase
      Aziz Jamai, Patrice A. Salomé, Stephen H. Schilling, Andreas P.M. Weber, C. Robertson McClung
      Plant Cell Feb 2009, 21 (2) 595-606; DOI: https://doi.org/10.1105/tpc.108.063289

      Photorespiration is the light-stimulated consumption of oxygen and evolution of carbon dioxide that occurs at ambient levels of carbon dioxide. Ferredoxin-dependent Glutamate Synthase, a key enzyme in the photorespiratory cycle previously known to localize in chloroplasts, is shown to occur also in mitochondria, where it interacts with serine hydroxymethyltransferase.

  2. Schachtman, Daniel P.

    1. You have accessRestricted Access
      Ethylene Mediates Response and Tolerance to Potassium Deprivation in Arabidopsis
      Ji-Yul Jung, Ryoung Shin, Daniel P. Schachtman
      Plant Cell Feb 2009, 21 (2) 607-621; DOI: https://doi.org/10.1105/tpc.108.063099

      Plant response to low nutrients is vital for growth and survival. This study shows that the ethylene signaling pathway is induced by potassium deprivation and positively regulates reactive oxygen species production and K+ transporter expression (HAK5) in Arabidopsis roots. Ethylene also enhances plant tolerance to low potassium and modulates root hair elongation and primary root growth.

  3. Schilling, Stephen H.

    1. You have accessRestricted Access
      Arabidopsis Photorespiratory Serine Hydroxymethyltransferase Activity Requires the Mitochondrial Accumulation of Ferredoxin-Dependent Glutamate Synthase
      Aziz Jamai, Patrice A. Salomé, Stephen H. Schilling, Andreas P.M. Weber, C. Robertson McClung
      Plant Cell Feb 2009, 21 (2) 595-606; DOI: https://doi.org/10.1105/tpc.108.063289

      Photorespiration is the light-stimulated consumption of oxygen and evolution of carbon dioxide that occurs at ambient levels of carbon dioxide. Ferredoxin-dependent Glutamate Synthase, a key enzyme in the photorespiratory cycle previously known to localize in chloroplasts, is shown to occur also in mitochondria, where it interacts with serine hydroxymethyltransferase.

  4. Schneider, Katja

    1. You have accessRestricted Access
      A Novel Fatty Acyl-CoA Synthetase Is Required for Pollen Development and Sporopollenin Biosynthesis in Arabidopsis
      Clarice de Azevedo Souza, Sung Soo Kim, Stefanie Koch, Lucie Kienow, Katja Schneider, Sarah M. McKim, George W. Haughn, Erich Kombrink, Carl J. Douglas
      Plant Cell Feb 2009, 21 (2) 507-525; DOI: https://doi.org/10.1105/tpc.108.062513

      This study implicates an acyl-CoA synthetase that is preferentially expressed in flowers in the sporopollenin biosynthesis pathway in Arabidopsis. ACOS5 was found to localize to the cytoplasm of tapetal cells, to act on medium-chain fatty acids, and to be required for pollen formation.

  5. Shen, Yunping

    1. You have accessRestricted Access
      Phytochrome A Mediates Rapid Red Light–Induced Phosphorylation of Arabidopsis FAR-RED ELONGATED HYPOCOTYL1 in a Low Fluence Response
      Yunping Shen, Zhenzhen Zhou, Suhua Feng, Jigang Li, Anna Tan-Wilson, Li-Jia Qu, Haiyang Wang, Xing Wang Deng
      Plant Cell Feb 2009, 21 (2) 494-506; DOI: https://doi.org/10.1105/tpc.108.061259

      This work analyzes the protein–protein interactions between phytochrome A (phyA) and two far-red light signaling proteins (FHY1 and FHL). In addition, it finds that phyA exhibits kinase activity toward FHY1 in vitro and that FHY1 undergoes phyA-dependent phosphorylation during dark to red light transition, revealing a role of phyA in regulating this low fluence response.

  6. Shin, Ryoung

    1. You have accessRestricted Access
      Ethylene Mediates Response and Tolerance to Potassium Deprivation in Arabidopsis
      Ji-Yul Jung, Ryoung Shin, Daniel P. Schachtman
      Plant Cell Feb 2009, 21 (2) 607-621; DOI: https://doi.org/10.1105/tpc.108.063099

      Plant response to low nutrients is vital for growth and survival. This study shows that the ethylene signaling pathway is induced by potassium deprivation and positively regulates reactive oxygen species production and K+ transporter expression (HAK5) in Arabidopsis roots. Ethylene also enhances plant tolerance to low potassium and modulates root hair elongation and primary root growth.

  7. Simpson, Clare

    1. You have accessRestricted Access
      An Arabidopsis GPI-Anchor Plasmodesmal Neck Protein with Callose Binding Activity and Potential to Regulate Cell-to-Cell Trafficking
      Clare Simpson, Carole Thomas, Kim Findlay, Emmanuelle Bayer, Andrew J. Maule
      Plant Cell Feb 2009, 21 (2) 581-594; DOI: https://doi.org/10.1105/tpc.108.060145

      This work contributes to our understanding of plasmodesmal (Pd) structure and function through the identification of a novel Pd protein. This protein shows binding to callose, a component important in Pd regulation, and accordingly the protein appears to influence molecular flux through these cell-to-cell communication channels.

  8. Smalle, Jan

    1. You have accessRestricted Access
      The RPN5 Subunit of the 26s Proteasome Is Essential for Gametogenesis, Sporophyte Development, and Complex Assembly in Arabidopsis
      Adam J. Book, Jan Smalle, Kwang-Hee Lee, Peizhen Yang, Joseph M. Walker, Sarah Casper, James H. Holmes, Laura A. Russo, Zachri W. Buzzinotti, Pablo D. Jenik, Richard D. Vierstra
      Plant Cell Feb 2009, 21 (2) 460-478; DOI: https://doi.org/10.1105/tpc.108.064444

      This study explores the function of two highly conserved isoforms of the Arabidopsis 26S proteasome subunit RPN5. The data point to a specific role for RPN5 in the plant 26S proteasome and suggest that its two isoforms in Arabidopsis have both redundant and unique roles in development.

  9. Son, Ora

    1. You have accessRestricted Access
      Drought Stress-Induced Rma1H1, a RING Membrane-Anchor E3 Ubiquitin Ligase Homolog, Regulates Aquaporin Levels via Ubiquitination in Transgenic Arabidopsis Plants
      Hyun Kyung Lee, Seok Keun Cho, Ora Son, Zhengyi Xu, Inhwan Hwang, Woo Taek Kim
      Plant Cell Feb 2009, 21 (2) 622-641; DOI: https://doi.org/10.1105/tpc.108.061994

      The role of ubiquitination in responses to abiotic stresses is not clearly understood. This work shows that overexpression of a hot pepper homolog of a human ubiquitin ligase results in markedly increased tolerance to severe drought stress in transgenic Arabidopsis plants by ubiquitinating the water channel protein aquaporin.

  10. Sousa, Carolina

    1. You have accessRestricted Access
      A Novel Plant Leucine-Rich Repeat Receptor Kinase Regulates the Response of Medicago truncatula Roots to Salt Stress
      Laura de Lorenzo, Francisco Merchan, Philippe Laporte, Richard Thompson, Jonathan Clarke, Carolina Sousa, Martín Crespi
      Plant Cell Feb 2009, 21 (2) 668-680; DOI: https://doi.org/10.1105/tpc.108.059576

      This work examines a leucine-rich repeat-like kinase (RLK) induced in response to salt stress in the model legume Medicago truncatula. Mutants in this gene showed an impaired physiological and molecular response to high salt and accumulate less salt in their tissues. This RLK plays a key role in the adaptation of M. truncatula to salt stress.

  11. Stancombe, Matthew A.

    1. You have accessRestricted Access
      Zea mays Annexins Modulate Cytosolic Free Ca2+ and Generate a Ca2+-Permeable Conductance
      Anuphon Laohavisit, Jennifer C. Mortimer, Vadim Demidchik, Katy M. Coxon, Matthew A. Stancombe, Neil Macpherson, Colin Brownlee, Andreas Hofmann, Alex A.R. Webb, Henk Miedema, Nicholas H. Battey, Julia M. Davies
      Plant Cell Feb 2009, 21 (2) 479-493; DOI: https://doi.org/10.1105/tpc.108.059550

      Annexins are soluble proteins capable of binding to membranes. Annexins purified from maize were found to increase cytosolic free calcium in Arabidopsis protoplasts and form a transport route for calcium, possibly by interacting with an unidentified membrane binding protein. These results implicate annexins in the regulation of cell calcium and hence cell signaling and development.

  12. Sugio, Akiko

    1. You have accessRestricted Access
      The Cytosolic Protein Response as a Subcomponent of the Wider Heat Shock Response in Arabidopsis
      Akiko Sugio, René Dreos, Frederic Aparicio, Andrew J. Maule
      Plant Cell Feb 2009, 21 (2) 642-654; DOI: https://doi.org/10.1105/tpc.108.062596

      Accumulation of misfolded protein in the cytosol of Arabidopsis, for example following heat shock, activates a stress response that includes a range of specific transcriptional events. This response was found to be partly regulated by the transcription factor HsfA2.

  13. Szumlanski, Amy L.

    1. You have accessRestricted Access
      The Rab GTPase RabA4d Regulates Pollen Tube Tip Growth in Arabidopsis thaliana
      Amy L. Szumlanski, Erik Nielsen
      Plant Cell Feb 2009, 21 (2) 526-544; DOI: https://doi.org/10.1105/tpc.108.060277

      Pollen tubes are characterized by a polarized form of cell growth and a requirement for highly regulated intracellular trafficking. Here, we show that RabA4d, a pollen-specific member of the RabA family of Rab GTPase proteins, is necessary for normal pollen tube growth. The loss of this gene leads to dramatic changes in pollen tube morphology and functionality.

T

  1. Takenaka, Mizuki

    1. You have accessRestricted Access
      A DYW Domain–Containing Pentatricopeptide Repeat Protein Is Required for RNA Editing at Multiple Sites in Mitochondria of Arabidopsis thaliana
      Anja Zehrmann, Daniil Verbitskiy, Johannes A. van der Merwe, Axel Brennicke, Mizuki Takenaka
      Plant Cell Feb 2009, 21 (2) 558-567; DOI: https://doi.org/10.1105/tpc.108.064535

      RNA editing in plant mitochondria changes 400 to 500 Cs to Us, mostly in mRNAs. This article identifies a trans-factor involved in RNA editing in plant mitochondria and reports that single-nucleotide mutations in this pentatricopeptide repeat protein differentially influence editing at the three sites addressed in different mRNAs.

  2. Tan-Wilson, Anna

    1. You have accessRestricted Access
      Phytochrome A Mediates Rapid Red Light–Induced Phosphorylation of Arabidopsis FAR-RED ELONGATED HYPOCOTYL1 in a Low Fluence Response
      Yunping Shen, Zhenzhen Zhou, Suhua Feng, Jigang Li, Anna Tan-Wilson, Li-Jia Qu, Haiyang Wang, Xing Wang Deng
      Plant Cell Feb 2009, 21 (2) 494-506; DOI: https://doi.org/10.1105/tpc.108.061259

      This work analyzes the protein–protein interactions between phytochrome A (phyA) and two far-red light signaling proteins (FHY1 and FHL). In addition, it finds that phyA exhibits kinase activity toward FHY1 in vitro and that FHY1 undergoes phyA-dependent phosphorylation during dark to red light transition, revealing a role of phyA in regulating this low fluence response.

  3. Thomas, Carole

    1. You have accessRestricted Access
      An Arabidopsis GPI-Anchor Plasmodesmal Neck Protein with Callose Binding Activity and Potential to Regulate Cell-to-Cell Trafficking
      Clare Simpson, Carole Thomas, Kim Findlay, Emmanuelle Bayer, Andrew J. Maule
      Plant Cell Feb 2009, 21 (2) 581-594; DOI: https://doi.org/10.1105/tpc.108.060145

      This work contributes to our understanding of plasmodesmal (Pd) structure and function through the identification of a novel Pd protein. This protein shows binding to callose, a component important in Pd regulation, and accordingly the protein appears to influence molecular flux through these cell-to-cell communication channels.

  4. Thompson, Richard

    1. You have accessRestricted Access
      A Novel Plant Leucine-Rich Repeat Receptor Kinase Regulates the Response of Medicago truncatula Roots to Salt Stress
      Laura de Lorenzo, Francisco Merchan, Philippe Laporte, Richard Thompson, Jonathan Clarke, Carolina Sousa, Martín Crespi
      Plant Cell Feb 2009, 21 (2) 668-680; DOI: https://doi.org/10.1105/tpc.108.059576

      This work examines a leucine-rich repeat-like kinase (RLK) induced in response to salt stress in the model legume Medicago truncatula. Mutants in this gene showed an impaired physiological and molecular response to high salt and accumulate less salt in their tissues. This RLK plays a key role in the adaptation of M. truncatula to salt stress.

  5. Tonelli, Chiara

    1. You have accessRestricted Access
      The Future of Science: Food and Water for Life
      Nancy A. Eckardt, Eleonora Cominelli, Massimo Galbiati, Chiara Tonelli
      Plant Cell Feb 2009, 21 (2) 368-372; DOI: https://doi.org/10.1105/tpc.109.066209
  6. Turner, Lynda

    1. Open Access
      Tendril-less Regulates Tendril Formation in Pea Leaves
      Julie Hofer, Lynda Turner, Carol Moreau, Mike Ambrose, Peter Isaac, Susan Butcher, James Weller, Adeline Dupin, Marion Dalmais, Christine Le Signor, Abdelhafid Bendahmane, Noel Ellis
      Plant Cell Feb 2009, 21 (2) 420-428; DOI: https://doi.org/10.1105/tpc.108.064071

      The gene that determines the formation of tendrils, novel filamentous leaf organs present in peas and their allies, has been identified as Tendril-less, encoding a Class I homeodomain leucine zipper transcription factor. Characterization of mutants shows that these tendrils are modified leaflets, inhibited from laminar development by the action of the Tendril-less gene.

V

  1. Valent, Barbara

    1. Open Access
      The ER Chaperone LHS1 Is Involved in Asexual Development and Rice Infection by the Blast Fungus Magnaporthe oryzae
      Mihwa Yi, Myoung-Hwan Chi, Chang Hyun Khang, Sook-Young Park, Seogchan Kang, Barbara Valent, Yong-Hwan Lee
      Plant Cell Feb 2009, 21 (2) 681-695; DOI: https://doi.org/10.1105/tpc.107.055988

      Magnaporthe oryzae LHS1 is an ER protein that functions in the unfolded protein response, as shown in yeast and plant systems. Disruption of the LHS1 gene causes improper processing and secretion of proteins. This disproportionately impacts early plant colonization steps in the compatible interaction and induction of plant defenses in the incompatible interaction.

  2. van der Merwe, Johannes A.

    1. You have accessRestricted Access
      A DYW Domain–Containing Pentatricopeptide Repeat Protein Is Required for RNA Editing at Multiple Sites in Mitochondria of Arabidopsis thaliana
      Anja Zehrmann, Daniil Verbitskiy, Johannes A. van der Merwe, Axel Brennicke, Mizuki Takenaka
      Plant Cell Feb 2009, 21 (2) 558-567; DOI: https://doi.org/10.1105/tpc.108.064535

      RNA editing in plant mitochondria changes 400 to 500 Cs to Us, mostly in mRNAs. This article identifies a trans-factor involved in RNA editing in plant mitochondria and reports that single-nucleotide mutations in this pentatricopeptide repeat protein differentially influence editing at the three sites addressed in different mRNAs.

  3. Verbitskiy, Daniil

    1. You have accessRestricted Access
      A DYW Domain–Containing Pentatricopeptide Repeat Protein Is Required for RNA Editing at Multiple Sites in Mitochondria of Arabidopsis thaliana
      Anja Zehrmann, Daniil Verbitskiy, Johannes A. van der Merwe, Axel Brennicke, Mizuki Takenaka
      Plant Cell Feb 2009, 21 (2) 558-567; DOI: https://doi.org/10.1105/tpc.108.064535

      RNA editing in plant mitochondria changes 400 to 500 Cs to Us, mostly in mRNAs. This article identifies a trans-factor involved in RNA editing in plant mitochondria and reports that single-nucleotide mutations in this pentatricopeptide repeat protein differentially influence editing at the three sites addressed in different mRNAs.

  4. Vezon, Daniel

    1. You have accessRestricted Access
      The Arabidopsis Proteasome RPT5 Subunits Are Essential for Gametophyte Development and Show Accession-Dependent Redundancy
      Jean-Luc Gallois, Anouchka Guyon-Debast, Alain Lécureuil, Daniel Vezon, Virginie Carpentier, Sandrine Bonhomme, Philippe Guerche
      Plant Cell Feb 2009, 21 (2) 442-459; DOI: https://doi.org/10.1105/tpc.108.062372

      This work shows that the proteasome Regulatory Particle 5 (RPT5) subunits are essential for male and female gametophyte development. Analysis of mutants for both genes encoding these subunits in two different Arabidopsis accessions also highlights that redundancy between the two RPT5 genes is accession dependent and in particular that the rpt5a mutant phenotype depends on its background.

  5. Vierstra, Richard D.

    1. You have accessRestricted Access
      The RPN5 Subunit of the 26s Proteasome Is Essential for Gametogenesis, Sporophyte Development, and Complex Assembly in Arabidopsis
      Adam J. Book, Jan Smalle, Kwang-Hee Lee, Peizhen Yang, Joseph M. Walker, Sarah Casper, James H. Holmes, Laura A. Russo, Zachri W. Buzzinotti, Pablo D. Jenik, Richard D. Vierstra
      Plant Cell Feb 2009, 21 (2) 460-478; DOI: https://doi.org/10.1105/tpc.108.064444

      This study explores the function of two highly conserved isoforms of the Arabidopsis 26S proteasome subunit RPN5. The data point to a specific role for RPN5 in the plant 26S proteasome and suggest that its two isoforms in Arabidopsis have both redundant and unique roles in development.

W

  1. Walker, Joseph M.

    1. You have accessRestricted Access
      The RPN5 Subunit of the 26s Proteasome Is Essential for Gametogenesis, Sporophyte Development, and Complex Assembly in Arabidopsis
      Adam J. Book, Jan Smalle, Kwang-Hee Lee, Peizhen Yang, Joseph M. Walker, Sarah Casper, James H. Holmes, Laura A. Russo, Zachri W. Buzzinotti, Pablo D. Jenik, Richard D. Vierstra
      Plant Cell Feb 2009, 21 (2) 460-478; DOI: https://doi.org/10.1105/tpc.108.064444

      This study explores the function of two highly conserved isoforms of the Arabidopsis 26S proteasome subunit RPN5. The data point to a specific role for RPN5 in the plant 26S proteasome and suggest that its two isoforms in Arabidopsis have both redundant and unique roles in development.

  2. Wang, Haiyang

    1. You have accessRestricted Access
      Phytochrome A Mediates Rapid Red Light–Induced Phosphorylation of Arabidopsis FAR-RED ELONGATED HYPOCOTYL1 in a Low Fluence Response
      Yunping Shen, Zhenzhen Zhou, Suhua Feng, Jigang Li, Anna Tan-Wilson, Li-Jia Qu, Haiyang Wang, Xing Wang Deng
      Plant Cell Feb 2009, 21 (2) 494-506; DOI: https://doi.org/10.1105/tpc.108.061259

      This work analyzes the protein–protein interactions between phytochrome A (phyA) and two far-red light signaling proteins (FHY1 and FHL). In addition, it finds that phyA exhibits kinase activity toward FHY1 in vitro and that FHY1 undergoes phyA-dependent phosphorylation during dark to red light transition, revealing a role of phyA in regulating this low fluence response.

  3. Wang, Youqun

    1. Open Access
      Epigenetic Regulation, Somatic Homologous Recombination, and Abscisic Acid Signaling Are Influenced by DNA Polymerase ϵ Mutation in Arabidopsis
      Haibo Yin, Xia Zhang, Jun Liu, Youqun Wang, Junna He, Tao Yang, Xuhui Hong, Qing Yang, Zhizhong Gong
      Plant Cell Feb 2009, 21 (2) 386-402; DOI: https://doi.org/10.1105/tpc.108.061549

      This work examines an abscisic acid (ABA)–sensitive mutant, which is caused by mutation of DNA polymerase ϵ. This hypomorphic mutation caused increased somatic homologous recombination, sensitivity to DNA-damaging agents, activation of silenced loci, and early flowering, indicating a role for DNA replication enzymes in maintenance of epigenetic states and in ABA signaling.

  4. Webb, Alex A.R.

    1. You have accessRestricted Access
      Zea mays Annexins Modulate Cytosolic Free Ca2+ and Generate a Ca2+-Permeable Conductance
      Anuphon Laohavisit, Jennifer C. Mortimer, Vadim Demidchik, Katy M. Coxon, Matthew A. Stancombe, Neil Macpherson, Colin Brownlee, Andreas Hofmann, Alex A.R. Webb, Henk Miedema, Nicholas H. Battey, Julia M. Davies
      Plant Cell Feb 2009, 21 (2) 479-493; DOI: https://doi.org/10.1105/tpc.108.059550

      Annexins are soluble proteins capable of binding to membranes. Annexins purified from maize were found to increase cytosolic free calcium in Arabidopsis protoplasts and form a transport route for calcium, possibly by interacting with an unidentified membrane binding protein. These results implicate annexins in the regulation of cell calcium and hence cell signaling and development.

  5. Weber, Andreas P.M.

    1. You have accessRestricted Access
      Arabidopsis Photorespiratory Serine Hydroxymethyltransferase Activity Requires the Mitochondrial Accumulation of Ferredoxin-Dependent Glutamate Synthase
      Aziz Jamai, Patrice A. Salomé, Stephen H. Schilling, Andreas P.M. Weber, C. Robertson McClung
      Plant Cell Feb 2009, 21 (2) 595-606; DOI: https://doi.org/10.1105/tpc.108.063289

      Photorespiration is the light-stimulated consumption of oxygen and evolution of carbon dioxide that occurs at ambient levels of carbon dioxide. Ferredoxin-dependent Glutamate Synthase, a key enzyme in the photorespiratory cycle previously known to localize in chloroplasts, is shown to occur also in mitochondria, where it interacts with serine hydroxymethyltransferase.

  6. Weller, James

    1. Open Access
      Tendril-less Regulates Tendril Formation in Pea Leaves
      Julie Hofer, Lynda Turner, Carol Moreau, Mike Ambrose, Peter Isaac, Susan Butcher, James Weller, Adeline Dupin, Marion Dalmais, Christine Le Signor, Abdelhafid Bendahmane, Noel Ellis
      Plant Cell Feb 2009, 21 (2) 420-428; DOI: https://doi.org/10.1105/tpc.108.064071

      The gene that determines the formation of tendrils, novel filamentous leaf organs present in peas and their allies, has been identified as Tendril-less, encoding a Class I homeodomain leucine zipper transcription factor. Characterization of mutants shows that these tendrils are modified leaflets, inhibited from laminar development by the action of the Tendril-less gene.

X

  1. Xu, Zhengyi

    1. You have accessRestricted Access
      Drought Stress-Induced Rma1H1, a RING Membrane-Anchor E3 Ubiquitin Ligase Homolog, Regulates Aquaporin Levels via Ubiquitination in Transgenic Arabidopsis Plants
      Hyun Kyung Lee, Seok Keun Cho, Ora Son, Zhengyi Xu, Inhwan Hwang, Woo Taek Kim
      Plant Cell Feb 2009, 21 (2) 622-641; DOI: https://doi.org/10.1105/tpc.108.061994

      The role of ubiquitination in responses to abiotic stresses is not clearly understood. This work shows that overexpression of a hot pepper homolog of a human ubiquitin ligase results in markedly increased tolerance to severe drought stress in transgenic Arabidopsis plants by ubiquitinating the water channel protein aquaporin.

Y

  1. Yamaguchi, Shinjiro

    1. You have accessRestricted Access
      Genome-Wide Analysis of Genes Targeted by PHYTOCHROME INTERACTING FACTOR 3-LIKE5 during Seed Germination in Arabidopsis
      Eunkyoo Oh, Hyojin Kang, Shinjiro Yamaguchi, Jeongmoo Park, Doheon Lee, Yuji Kamiya, Giltsu Choi
      Plant Cell Feb 2009, 21 (2) 403-419; DOI: https://doi.org/10.1105/tpc.108.064691

      PIL5 is a phytochrome-interacting bHLH transcription factor that regulates seed germination. This work identifies genes directly targeted by PIL5 through comparison of microarray and ChIP-chip data. The analysis of the target genes shows that PIL5 regulates seed germination by coordinating various hormone signaling pathways and by modifying cell wall properties in imbibed seeds.

  2. Yamaji, Naoki

    1. You have accessRestricted Access
      A Bacterial-Type ABC Transporter Is Involved in Aluminum Tolerance in Rice
      Chao Feng Huang, Naoki Yamaji, Namiki Mitani, Masahiro Yano, Yoshiaki Nagamura, Jian Feng Ma
      Plant Cell Feb 2009, 21 (2) 655-667; DOI: https://doi.org/10.1105/tpc.108.064543

      Aluminum toxicity is a major factor limiting crop production in acidic soil. This work identifies two genes (STAR1 and STAR2) involved in aluminum tolerance in rice. STAR1 encodes a nucleotide binding domain of a putative ABC transporter. It interacts with STAR2, which encodes a transmembrane domain protein, to form an ABC transporter complex that transports UDP-glucose.

  3. Yang, Peizhen

    1. You have accessRestricted Access
      The RPN5 Subunit of the 26s Proteasome Is Essential for Gametogenesis, Sporophyte Development, and Complex Assembly in Arabidopsis
      Adam J. Book, Jan Smalle, Kwang-Hee Lee, Peizhen Yang, Joseph M. Walker, Sarah Casper, James H. Holmes, Laura A. Russo, Zachri W. Buzzinotti, Pablo D. Jenik, Richard D. Vierstra
      Plant Cell Feb 2009, 21 (2) 460-478; DOI: https://doi.org/10.1105/tpc.108.064444

      This study explores the function of two highly conserved isoforms of the Arabidopsis 26S proteasome subunit RPN5. The data point to a specific role for RPN5 in the plant 26S proteasome and suggest that its two isoforms in Arabidopsis have both redundant and unique roles in development.

  4. Yang, Qing

    1. Open Access
      Epigenetic Regulation, Somatic Homologous Recombination, and Abscisic Acid Signaling Are Influenced by DNA Polymerase ϵ Mutation in Arabidopsis
      Haibo Yin, Xia Zhang, Jun Liu, Youqun Wang, Junna He, Tao Yang, Xuhui Hong, Qing Yang, Zhizhong Gong
      Plant Cell Feb 2009, 21 (2) 386-402; DOI: https://doi.org/10.1105/tpc.108.061549

      This work examines an abscisic acid (ABA)–sensitive mutant, which is caused by mutation of DNA polymerase ϵ. This hypomorphic mutation caused increased somatic homologous recombination, sensitivity to DNA-damaging agents, activation of silenced loci, and early flowering, indicating a role for DNA replication enzymes in maintenance of epigenetic states and in ABA signaling.

  5. Yang, Tao

    1. Open Access
      Epigenetic Regulation, Somatic Homologous Recombination, and Abscisic Acid Signaling Are Influenced by DNA Polymerase ϵ Mutation in Arabidopsis
      Haibo Yin, Xia Zhang, Jun Liu, Youqun Wang, Junna He, Tao Yang, Xuhui Hong, Qing Yang, Zhizhong Gong
      Plant Cell Feb 2009, 21 (2) 386-402; DOI: https://doi.org/10.1105/tpc.108.061549

      This work examines an abscisic acid (ABA)–sensitive mutant, which is caused by mutation of DNA polymerase ϵ. This hypomorphic mutation caused increased somatic homologous recombination, sensitivity to DNA-damaging agents, activation of silenced loci, and early flowering, indicating a role for DNA replication enzymes in maintenance of epigenetic states and in ABA signaling.

  6. Yano, Masahiro

    1. You have accessRestricted Access
      A Bacterial-Type ABC Transporter Is Involved in Aluminum Tolerance in Rice
      Chao Feng Huang, Naoki Yamaji, Namiki Mitani, Masahiro Yano, Yoshiaki Nagamura, Jian Feng Ma
      Plant Cell Feb 2009, 21 (2) 655-667; DOI: https://doi.org/10.1105/tpc.108.064543

      Aluminum toxicity is a major factor limiting crop production in acidic soil. This work identifies two genes (STAR1 and STAR2) involved in aluminum tolerance in rice. STAR1 encodes a nucleotide binding domain of a putative ABC transporter. It interacts with STAR2, which encodes a transmembrane domain protein, to form an ABC transporter complex that transports UDP-glucose.

  7. Yi, Mihwa

    1. Open Access
      The ER Chaperone LHS1 Is Involved in Asexual Development and Rice Infection by the Blast Fungus Magnaporthe oryzae
      Mihwa Yi, Myoung-Hwan Chi, Chang Hyun Khang, Sook-Young Park, Seogchan Kang, Barbara Valent, Yong-Hwan Lee
      Plant Cell Feb 2009, 21 (2) 681-695; DOI: https://doi.org/10.1105/tpc.107.055988

      Magnaporthe oryzae LHS1 is an ER protein that functions in the unfolded protein response, as shown in yeast and plant systems. Disruption of the LHS1 gene causes improper processing and secretion of proteins. This disproportionately impacts early plant colonization steps in the compatible interaction and induction of plant defenses in the incompatible interaction.

  8. Yin, Haibo

    1. Open Access
      Epigenetic Regulation, Somatic Homologous Recombination, and Abscisic Acid Signaling Are Influenced by DNA Polymerase ϵ Mutation in Arabidopsis
      Haibo Yin, Xia Zhang, Jun Liu, Youqun Wang, Junna He, Tao Yang, Xuhui Hong, Qing Yang, Zhizhong Gong
      Plant Cell Feb 2009, 21 (2) 386-402; DOI: https://doi.org/10.1105/tpc.108.061549

      This work examines an abscisic acid (ABA)–sensitive mutant, which is caused by mutation of DNA polymerase ϵ. This hypomorphic mutation caused increased somatic homologous recombination, sensitivity to DNA-damaging agents, activation of silenced loci, and early flowering, indicating a role for DNA replication enzymes in maintenance of epigenetic states and in ABA signaling.

Z

  1. Zachgo, Sabine

    1. You have accessRestricted Access
      Nuclear Activity of ROXY1, a Glutaredoxin Interacting with TGA Factors, Is Required for Petal Development in Arabidopsis thaliana
      Shutian Li, Andrea Lauri, Mark Ziemann, Andrea Busch, Mrinal Bhave, Sabine Zachgo
      Plant Cell Feb 2009, 21 (2) 429-441; DOI: https://doi.org/10.1105/tpc.108.064477

      Glutaredoxins are ubiquitous glutathione-dependent oxidoreductases that are associated mainly with redox-regulated processes participating in stress responses. This work shows that ROXY1, a CC-type glutaredoxin, acts in the nucleus to influence petal primordia initiation and later petal morphogenesis, likely by modifying TGA transcription factors posttranslationally.

  2. Zehrmann, Anja

    1. You have accessRestricted Access
      A DYW Domain–Containing Pentatricopeptide Repeat Protein Is Required for RNA Editing at Multiple Sites in Mitochondria of Arabidopsis thaliana
      Anja Zehrmann, Daniil Verbitskiy, Johannes A. van der Merwe, Axel Brennicke, Mizuki Takenaka
      Plant Cell Feb 2009, 21 (2) 558-567; DOI: https://doi.org/10.1105/tpc.108.064535

      RNA editing in plant mitochondria changes 400 to 500 Cs to Us, mostly in mRNAs. This article identifies a trans-factor involved in RNA editing in plant mitochondria and reports that single-nucleotide mutations in this pentatricopeptide repeat protein differentially influence editing at the three sites addressed in different mRNAs.

  3. Zhang, Xia

    1. Open Access
      Epigenetic Regulation, Somatic Homologous Recombination, and Abscisic Acid Signaling Are Influenced by DNA Polymerase ϵ Mutation in Arabidopsis
      Haibo Yin, Xia Zhang, Jun Liu, Youqun Wang, Junna He, Tao Yang, Xuhui Hong, Qing Yang, Zhizhong Gong
      Plant Cell Feb 2009, 21 (2) 386-402; DOI: https://doi.org/10.1105/tpc.108.061549

      This work examines an abscisic acid (ABA)–sensitive mutant, which is caused by mutation of DNA polymerase ϵ. This hypomorphic mutation caused increased somatic homologous recombination, sensitivity to DNA-damaging agents, activation of silenced loci, and early flowering, indicating a role for DNA replication enzymes in maintenance of epigenetic states and in ABA signaling.

  4. Zhou, Zhenzhen

    1. You have accessRestricted Access
      Phytochrome A Mediates Rapid Red Light–Induced Phosphorylation of Arabidopsis FAR-RED ELONGATED HYPOCOTYL1 in a Low Fluence Response
      Yunping Shen, Zhenzhen Zhou, Suhua Feng, Jigang Li, Anna Tan-Wilson, Li-Jia Qu, Haiyang Wang, Xing Wang Deng
      Plant Cell Feb 2009, 21 (2) 494-506; DOI: https://doi.org/10.1105/tpc.108.061259

      This work analyzes the protein–protein interactions between phytochrome A (phyA) and two far-red light signaling proteins (FHY1 and FHL). In addition, it finds that phyA exhibits kinase activity toward FHY1 in vitro and that FHY1 undergoes phyA-dependent phosphorylation during dark to red light transition, revealing a role of phyA in regulating this low fluence response.

  5. Ziemann, Mark

    1. You have accessRestricted Access
      Nuclear Activity of ROXY1, a Glutaredoxin Interacting with TGA Factors, Is Required for Petal Development in Arabidopsis thaliana
      Shutian Li, Andrea Lauri, Mark Ziemann, Andrea Busch, Mrinal Bhave, Sabine Zachgo
      Plant Cell Feb 2009, 21 (2) 429-441; DOI: https://doi.org/10.1105/tpc.108.064477

      Glutaredoxins are ubiquitous glutathione-dependent oxidoreductases that are associated mainly with redox-regulated processes participating in stress responses. This work shows that ROXY1, a CC-type glutaredoxin, acts in the nucleus to influence petal primordia initiation and later petal morphogenesis, likely by modifying TGA transcription factors posttranslationally.

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The Plant Cell Online: 21 (2)
The Plant Cell
Vol. 21, Issue 2
February 2009
  • Table of Contents
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