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Table of Contents

The Plant Cell Online: 21 (4)
Apr 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. Aakre, Chris D.

    1. You have accessRestricted Access
      Xanthomonas T3S Effector XopN Suppresses PAMP-Triggered Immunity and Interacts with a Tomato Atypical Receptor-Like Kinase and TFT1
      Jung-Gun Kim, Xinyan Li, Julie Anne Roden, Kyle W. Taylor, Chris D. Aakre, Bessie Su, Sylvie Lalonde, Angela Kirik, Yanhui Chen, Gayathri Baranage, Heather McLane, Gregory B. Martin, Mary Beth Mudgett
      Plant Cell Apr 2009, 21 (4) 1305-1323; DOI: https://doi.org/10.1105/tpc.108.063123

      This work shows that the plant pathogen Xanthomonas campestris pathovar vesicatoria uses the XopN T3S effector protein to suppress tomato defense responses at the early stages of pathogen recognition. Biochemical studies indicate that XopN interacts specifically with a tomato atypical receptor kinase TARK1 that is partially required to limit bacterial multiplication in leaves.

  2. Amasino, Richard M.

    1. You have accessRestricted Access
      The RNA Binding Protein ELF9 Directly Reduces SUPPRESSOR OF OVEREXPRESSION OF CO1 Transcript Levels in Arabidopsis, Possibly via Nonsense-Mediated mRNA Decay
      Hae-Ryong Song, Ju-Dong Song, Jung-Nam Cho, Richard M. Amasino, Bosl Noh, Yoo-Sun Noh
      Plant Cell Apr 2009, 21 (4) 1195-1211; DOI: https://doi.org/10.1105/tpc.108.064774

      This work shows that SOC1 transcripts are directly recognized and regulated by an RNA binding protein EARLY FLOWERING9 (ELF9). In addition, ELF9 regulates multiple transcripts that are the targets of nonsense-mediated mRNA decay (NMD). Thus, ELF9 might be an RNA binding component of the Arabidopsis NMD system.

  3. Aromdee, Dale N.

    1. You have accessRestricted Access
      Leucine Aminopeptidase Regulates Defense and Wound Signaling in Tomato Downstream of Jasmonic Acid
      Jonathan H. Fowler, Javier Narváez-Vásquez, Dale N. Aromdee, Véronique Pautot, Frances M. Holzer, Linda L. Walling
      Plant Cell Apr 2009, 21 (4) 1239-1251; DOI: https://doi.org/10.1105/tpc.108.065029

      This work examines the role of the late wound-response gene Leucine aminopeptidase A (LapA) in herbivory and wound-induced gene expression. Examination of silenced and overexpressing lines indicates that LAP-A promotes defense responses downstream of jasmonic acid.

  4. Asakura, Makoto

    1. You have accessRestricted Access
      Atg26-Mediated Pexophagy Is Required for Host Invasion by the Plant Pathogenic Fungus Colletotrichum orbiculare
      Makoto Asakura, Sachiko Ninomiya, Miki Sugimoto, Masahide Oku, Shun-ichi Yamashita, Tetsuro Okuno, Yasuyoshi Sakai, Yoshitaka Takano
      Plant Cell Apr 2009, 21 (4) 1291-1304; DOI: https://doi.org/10.1105/tpc.108.060996

      For plant infection, the cucumber anthracnose fungus requires Atg26, a glucosyl transferase involved in pexophagy, the selective degradation of peroxisomes. Appressoria of an atg26 mutant fail to develop invasion hyphae and show defective pexophagy. Domain analysis of Atg26 suggests that both its phosphoinositide binding domain and catalytic domain are required for pexophagy and pathogenicity.

  5. Asatsuma, Satoru

    1. Open Access
      A Mobile Secretory Vesicle Cluster Involved in Mass Transport from the Golgi to the Plant Cell Exterior
      Kiminori Toyooka, Yumi Goto, Satoru Asatsuma, Masato Koizumi, Toshiaki Mitsui, Ken Matsuoka
      Plant Cell Apr 2009, 21 (4) 1212-1229; DOI: https://doi.org/10.1105/tpc.108.058933

      Analysis of post-Golgi transport machinery revealed a mobile structure of clustered secretory vesicles, termed the secretory vesicle cluster (SVC), which originates from the trans-Golgi network and fuses with plasma membrane or cell plate. The presence of secretory proteins and glycans suggested that SVC is involved in mass transport from the Golgi to the cell exterior.

B

  1. Baranage, Gayathri

    1. You have accessRestricted Access
      Xanthomonas T3S Effector XopN Suppresses PAMP-Triggered Immunity and Interacts with a Tomato Atypical Receptor-Like Kinase and TFT1
      Jung-Gun Kim, Xinyan Li, Julie Anne Roden, Kyle W. Taylor, Chris D. Aakre, Bessie Su, Sylvie Lalonde, Angela Kirik, Yanhui Chen, Gayathri Baranage, Heather McLane, Gregory B. Martin, Mary Beth Mudgett
      Plant Cell Apr 2009, 21 (4) 1305-1323; DOI: https://doi.org/10.1105/tpc.108.063123

      This work shows that the plant pathogen Xanthomonas campestris pathovar vesicatoria uses the XopN T3S effector protein to suppress tomato defense responses at the early stages of pathogen recognition. Biochemical studies indicate that XopN interacts specifically with a tomato atypical receptor kinase TARK1 that is partially required to limit bacterial multiplication in leaves.

  2. Bertoni, Gregory

    1. You have accessRestricted Access
      Pexophagy in Fungal Pathogenesis
      Gregory Bertoni
      Plant Cell Apr 2009, 21 (4) 1030; DOI: https://doi.org/10.1105/tpc.109.210413
  3. Bird, David

    1. Open Access
      Arabidopsis LTPG Is a Glycosylphosphatidylinositol-Anchored Lipid Transfer Protein Required for Export of Lipids to the Plant Surface
      Allan DeBono, Trevor H. Yeats, Jocelyn K.C. Rose, David Bird, Reinhard Jetter, Ljerka Kunst, Lacey Samuels
      Plant Cell Apr 2009, 21 (4) 1230-1238; DOI: https://doi.org/10.1105/tpc.108.064451

      It has long been hypothesized that extracellular transfer of lipids across the epidermal cell wall to the waxy cuticle would require lipid transfer proteins (LTPs). An LTP with a GPI-anchor, LTPG, is required for export of wax to the cuticle in the stems of Arabidopsis. LTPG is primarily localized to the plasma membrane, and recombinant LTPG displays binding affinity for a lipophilic analog.

  4. Bischoff, Volker

    1. You have accessRestricted Access
      Pausing of Golgi Bodies on Microtubules Regulates Secretion of Cellulose Synthase Complexes in Arabidopsis
      Elizabeth Faris Crowell, Volker Bischoff, Thierry Desprez, Aurélia Rolland, York-Dieter Stierhof, Karin Schumacher, Martine Gonneau, Herman Höfte, Samantha Vernhettes
      Plant Cell Apr 2009, 21 (4) 1141-1154; DOI: https://doi.org/10.1105/tpc.108.065334

      Little is known about how cellulose synthases (CESAs) reach their site of activity at the plasma membrane. Here, intracellular trafficking of CESA3 was investigated using live-cell imaging and electron microscopy. CESA3 secretion is accompanied by pausing of Golgi bodies on microtubules, and CESA3 is internalized in compartments whose movement depends on cortical microtubule array dynamics.

  5. Brady, Siobhan M.

    1. You have accessRestricted Access
      Web-Queryable Large-Scale Data Sets for Hypothesis Generation in Plant Biology
      Siobhan M. Brady, Nicholas J. Provart
      Plant Cell Apr 2009, 21 (4) 1034-1051; DOI: https://doi.org/10.1105/tpc.109.066050

C

  1. Capper, Richard G.

    1. Open Access
      GLK Transcription Factors Coordinate Expression of the Photosynthetic Apparatus in Arabidopsis
      Mark T. Waters, Peng Wang, Muris Korkaric, Richard G. Capper, Nigel J. Saunders, Jane A. Langdale
      Plant Cell Apr 2009, 21 (4) 1109-1128; DOI: https://doi.org/10.1105/tpc.108.065250

      GOLDEN2-LIKE (GLK) transcription factors are required for normal chloroplast development in several land plants. This study shows that GLK proteins synchronously upregulate genes relating to light harvesting and chlorophyll biosynthesis via direct interaction with promoter sequences. GLK activity most likely optimizes photosynthesis by coordinating responses to variable environmental conditions.

  2. Chen, Yanhui

    1. You have accessRestricted Access
      Xanthomonas T3S Effector XopN Suppresses PAMP-Triggered Immunity and Interacts with a Tomato Atypical Receptor-Like Kinase and TFT1
      Jung-Gun Kim, Xinyan Li, Julie Anne Roden, Kyle W. Taylor, Chris D. Aakre, Bessie Su, Sylvie Lalonde, Angela Kirik, Yanhui Chen, Gayathri Baranage, Heather McLane, Gregory B. Martin, Mary Beth Mudgett
      Plant Cell Apr 2009, 21 (4) 1305-1323; DOI: https://doi.org/10.1105/tpc.108.063123

      This work shows that the plant pathogen Xanthomonas campestris pathovar vesicatoria uses the XopN T3S effector protein to suppress tomato defense responses at the early stages of pathogen recognition. Biochemical studies indicate that XopN interacts specifically with a tomato atypical receptor kinase TARK1 that is partially required to limit bacterial multiplication in leaves.

  3. Cho, Jung-Nam

    1. You have accessRestricted Access
      The RNA Binding Protein ELF9 Directly Reduces SUPPRESSOR OF OVEREXPRESSION OF CO1 Transcript Levels in Arabidopsis, Possibly via Nonsense-Mediated mRNA Decay
      Hae-Ryong Song, Ju-Dong Song, Jung-Nam Cho, Richard M. Amasino, Bosl Noh, Yoo-Sun Noh
      Plant Cell Apr 2009, 21 (4) 1195-1211; DOI: https://doi.org/10.1105/tpc.108.064774

      This work shows that SOC1 transcripts are directly recognized and regulated by an RNA binding protein EARLY FLOWERING9 (ELF9). In addition, ELF9 regulates multiple transcripts that are the targets of nonsense-mediated mRNA decay (NMD). Thus, ELF9 might be an RNA binding component of the Arabidopsis NMD system.

  4. Coughlan, Sean

    1. Open Access
      Interaction Transcriptome Analysis Identifies Magnaporthe oryzae BAS1-4 as Biotrophy-Associated Secreted Proteins in Rice Blast Disease
      Gloria Mosquera, Martha C. Giraldo, Chang Hyun Khang, Sean Coughlan, Barbara Valent
      Plant Cell Apr 2009, 21 (4) 1273-1290; DOI: https://doi.org/10.1105/tpc.107.055228

      The authors analyze host and pathogen gene expression after enrichment for biotrophic invasive hyphae (IH) of Magnaporthe oryzae growing in the first-invaded rice cells. IH express genes encoding biotrophy-associated secreted proteins, some of which accumulate in blast biotrophic interfacial complexes in compatible interactions, resemble known avirulence effectors.

  5. Crowell, Elizabeth Faris

    1. You have accessRestricted Access
      Pausing of Golgi Bodies on Microtubules Regulates Secretion of Cellulose Synthase Complexes in Arabidopsis
      Elizabeth Faris Crowell, Volker Bischoff, Thierry Desprez, Aurélia Rolland, York-Dieter Stierhof, Karin Schumacher, Martine Gonneau, Herman Höfte, Samantha Vernhettes
      Plant Cell Apr 2009, 21 (4) 1141-1154; DOI: https://doi.org/10.1105/tpc.108.065334

      Little is known about how cellulose synthases (CESAs) reach their site of activity at the plasma membrane. Here, intracellular trafficking of CESA3 was investigated using live-cell imaging and electron microscopy. CESA3 secretion is accompanied by pausing of Golgi bodies on microtubules, and CESA3 is internalized in compartments whose movement depends on cortical microtubule array dynamics.

D

  1. DeBono, Allan

    1. Open Access
      Arabidopsis LTPG Is a Glycosylphosphatidylinositol-Anchored Lipid Transfer Protein Required for Export of Lipids to the Plant Surface
      Allan DeBono, Trevor H. Yeats, Jocelyn K.C. Rose, David Bird, Reinhard Jetter, Ljerka Kunst, Lacey Samuels
      Plant Cell Apr 2009, 21 (4) 1230-1238; DOI: https://doi.org/10.1105/tpc.108.064451

      It has long been hypothesized that extracellular transfer of lipids across the epidermal cell wall to the waxy cuticle would require lipid transfer proteins (LTPs). An LTP with a GPI-anchor, LTPG, is required for export of wax to the cuticle in the stems of Arabidopsis. LTPG is primarily localized to the plasma membrane, and recombinant LTPG displays binding affinity for a lipophilic analog.

  2. Demura, Taku

    1. You have accessRestricted Access
      Identifying New Components Participating in the Secondary Cell Wall Formation of Vessel Elements in Zinnia and Arabidopsis
      Satoshi Endo, Edouard Pesquet, Masatoshi Yamaguchi, Gen Tashiro, Mayuko Sato, Kiminori Toyooka, Nobuyuki Nishikubo, Makiko Udagawa-Motose, Minoru Kubo, Hiroo Fukuda, Taku Demura
      Plant Cell Apr 2009, 21 (4) 1155-1165; DOI: https://doi.org/10.1105/tpc.108.059154

      This study uses an RNAi screen in Zinnia to identify two new components, Tracheary Element Differentiation-Related6 (TED6) and TED7, which contribute to cell wall biosynthesis during xylem vessel formation. The authors study TED6 and TED7 functions and interactions in Arabidopsis plants and Zinnia cultured cells.

  3. Deng, Xing Wang

    1. You have accessRestricted Access
      Genome-Wide and Organ-Specific Landscapes of Epigenetic Modifications and Their Relationships to mRNA and Small RNA Transcriptomes in Maize
      Xiangfeng Wang, Axel A. Elling, Xueyong Li, Ning Li, Zhiyu Peng, Guangming He, Hui Sun, Yijun Qi, X. Shirley Liu, Xing Wang Deng
      Plant Cell Apr 2009, 21 (4) 1053-1069; DOI: https://doi.org/10.1105/tpc.109.065714

      This genome-wide survey shows that epigenetic patterns differ significantly between protein-coding genes and transposable elements in maize. It is found that activating histone modifications co-occur, but the repressive marks H3K27me3 and DNA methylation exclude each other. Evidence is provided that changing mop1 transcript levels might lead to a tissue-specific shift of small RNA populations.

  4. Desprez, Thierry

    1. You have accessRestricted Access
      Pausing of Golgi Bodies on Microtubules Regulates Secretion of Cellulose Synthase Complexes in Arabidopsis
      Elizabeth Faris Crowell, Volker Bischoff, Thierry Desprez, Aurélia Rolland, York-Dieter Stierhof, Karin Schumacher, Martine Gonneau, Herman Höfte, Samantha Vernhettes
      Plant Cell Apr 2009, 21 (4) 1141-1154; DOI: https://doi.org/10.1105/tpc.108.065334

      Little is known about how cellulose synthases (CESAs) reach their site of activity at the plasma membrane. Here, intracellular trafficking of CESA3 was investigated using live-cell imaging and electron microscopy. CESA3 secretion is accompanied by pausing of Golgi bodies on microtubules, and CESA3 is internalized in compartments whose movement depends on cortical microtubule array dynamics.

E

  1. Eckardt, Nancy A.

    1. You have accessRestricted Access
      Deep Sequencing Maps the Maize Epigenomic Landscape
      Nancy A. Eckardt
      Plant Cell Apr 2009, 21 (4) 1024-1026; DOI: https://doi.org/10.1105/tpc.109.068064
    2. You have accessRestricted Access
      A Volvox Inversionless Mutant Highlights the Importance of the Extracellular Matrix in Morphogenesis
      Nancy A. Eckardt
      Plant Cell Apr 2009, 21 (4) 1029; DOI: https://doi.org/10.1105/tpc.109.210412
  2. Efremova, Nadia

    1. You have accessRestricted Access
      Misexpression of FATTY ACID ELONGATION1 in the Arabidopsis Epidermis Induces Cell Death and Suggests a Critical Role for Phospholipase A2 in This Process
      José J. Reina-Pinto, Derry Voisin, Sergey Kurdyukov, Andrea Faust, Richard P. Haslam, Louise V. Michaelson, Nadia Efremova, Benni Franke, Lukas Schreiber, Johnathan A. Napier, Alexander Yephremov
      Plant Cell Apr 2009, 21 (4) 1252-1272; DOI: https://doi.org/10.1105/tpc.109.065565

      In this work, expression of a fatty acid elongase in the epidermis results in glabrous plants because newly initiated trichomes undergo rapid cell death. Chemical genetic screens identify cell death inhibitors that restore cell differentiation program.

  3. Elling, Axel A.

    1. You have accessRestricted Access
      Genome-Wide and Organ-Specific Landscapes of Epigenetic Modifications and Their Relationships to mRNA and Small RNA Transcriptomes in Maize
      Xiangfeng Wang, Axel A. Elling, Xueyong Li, Ning Li, Zhiyu Peng, Guangming He, Hui Sun, Yijun Qi, X. Shirley Liu, Xing Wang Deng
      Plant Cell Apr 2009, 21 (4) 1053-1069; DOI: https://doi.org/10.1105/tpc.109.065714

      This genome-wide survey shows that epigenetic patterns differ significantly between protein-coding genes and transposable elements in maize. It is found that activating histone modifications co-occur, but the repressive marks H3K27me3 and DNA methylation exclude each other. Evidence is provided that changing mop1 transcript levels might lead to a tissue-specific shift of small RNA populations.

  4. Endo, Satoshi

    1. You have accessRestricted Access
      Identifying New Components Participating in the Secondary Cell Wall Formation of Vessel Elements in Zinnia and Arabidopsis
      Satoshi Endo, Edouard Pesquet, Masatoshi Yamaguchi, Gen Tashiro, Mayuko Sato, Kiminori Toyooka, Nobuyuki Nishikubo, Makiko Udagawa-Motose, Minoru Kubo, Hiroo Fukuda, Taku Demura
      Plant Cell Apr 2009, 21 (4) 1155-1165; DOI: https://doi.org/10.1105/tpc.108.059154

      This study uses an RNAi screen in Zinnia to identify two new components, Tracheary Element Differentiation-Related6 (TED6) and TED7, which contribute to cell wall biosynthesis during xylem vessel formation. The authors study TED6 and TED7 functions and interactions in Arabidopsis plants and Zinnia cultured cells.

F

  1. Farquharson, Kathleen L.

    1. You have accessRestricted Access
      Cortical Microtubules Regulate the Insertion of Cellulose Synthase Complexes in the Plasma Membrane
      Kathleen L. Farquharson
      Plant Cell Apr 2009, 21 (4) 1028; DOI: https://doi.org/10.1105/tpc.109.210411
  2. Faust, Andrea

    1. You have accessRestricted Access
      Misexpression of FATTY ACID ELONGATION1 in the Arabidopsis Epidermis Induces Cell Death and Suggests a Critical Role for Phospholipase A2 in This Process
      José J. Reina-Pinto, Derry Voisin, Sergey Kurdyukov, Andrea Faust, Richard P. Haslam, Louise V. Michaelson, Nadia Efremova, Benni Franke, Lukas Schreiber, Johnathan A. Napier, Alexander Yephremov
      Plant Cell Apr 2009, 21 (4) 1252-1272; DOI: https://doi.org/10.1105/tpc.109.065565

      In this work, expression of a fatty acid elongase in the epidermis results in glabrous plants because newly initiated trichomes undergo rapid cell death. Chemical genetic screens identify cell death inhibitors that restore cell differentiation program.

  3. Fowler, Jonathan H.

    1. You have accessRestricted Access
      Leucine Aminopeptidase Regulates Defense and Wound Signaling in Tomato Downstream of Jasmonic Acid
      Jonathan H. Fowler, Javier Narváez-Vásquez, Dale N. Aromdee, Véronique Pautot, Frances M. Holzer, Linda L. Walling
      Plant Cell Apr 2009, 21 (4) 1239-1251; DOI: https://doi.org/10.1105/tpc.108.065029

      This work examines the role of the late wound-response gene Leucine aminopeptidase A (LapA) in herbivory and wound-induced gene expression. Examination of silenced and overexpressing lines indicates that LAP-A promotes defense responses downstream of jasmonic acid.

  4. Franke, Benni

    1. You have accessRestricted Access
      Misexpression of FATTY ACID ELONGATION1 in the Arabidopsis Epidermis Induces Cell Death and Suggests a Critical Role for Phospholipase A2 in This Process
      José J. Reina-Pinto, Derry Voisin, Sergey Kurdyukov, Andrea Faust, Richard P. Haslam, Louise V. Michaelson, Nadia Efremova, Benni Franke, Lukas Schreiber, Johnathan A. Napier, Alexander Yephremov
      Plant Cell Apr 2009, 21 (4) 1252-1272; DOI: https://doi.org/10.1105/tpc.109.065565

      In this work, expression of a fatty acid elongase in the epidermis results in glabrous plants because newly initiated trichomes undergo rapid cell death. Chemical genetic screens identify cell death inhibitors that restore cell differentiation program.

  5. Fukuda, Hiroo

    1. You have accessRestricted Access
      Identifying New Components Participating in the Secondary Cell Wall Formation of Vessel Elements in Zinnia and Arabidopsis
      Satoshi Endo, Edouard Pesquet, Masatoshi Yamaguchi, Gen Tashiro, Mayuko Sato, Kiminori Toyooka, Nobuyuki Nishikubo, Makiko Udagawa-Motose, Minoru Kubo, Hiroo Fukuda, Taku Demura
      Plant Cell Apr 2009, 21 (4) 1155-1165; DOI: https://doi.org/10.1105/tpc.108.059154

      This study uses an RNAi screen in Zinnia to identify two new components, Tracheary Element Differentiation-Related6 (TED6) and TED7, which contribute to cell wall biosynthesis during xylem vessel formation. The authors study TED6 and TED7 functions and interactions in Arabidopsis plants and Zinnia cultured cells.

G

  1. Giraldo, Martha C.

    1. Open Access
      Interaction Transcriptome Analysis Identifies Magnaporthe oryzae BAS1-4 as Biotrophy-Associated Secreted Proteins in Rice Blast Disease
      Gloria Mosquera, Martha C. Giraldo, Chang Hyun Khang, Sean Coughlan, Barbara Valent
      Plant Cell Apr 2009, 21 (4) 1273-1290; DOI: https://doi.org/10.1105/tpc.107.055228

      The authors analyze host and pathogen gene expression after enrichment for biotrophic invasive hyphae (IH) of Magnaporthe oryzae growing in the first-invaded rice cells. IH express genes encoding biotrophy-associated secreted proteins, some of which accumulate in blast biotrophic interfacial complexes in compatible interactions, resemble known avirulence effectors.

  2. Gonneau, Martine

    1. You have accessRestricted Access
      Pausing of Golgi Bodies on Microtubules Regulates Secretion of Cellulose Synthase Complexes in Arabidopsis
      Elizabeth Faris Crowell, Volker Bischoff, Thierry Desprez, Aurélia Rolland, York-Dieter Stierhof, Karin Schumacher, Martine Gonneau, Herman Höfte, Samantha Vernhettes
      Plant Cell Apr 2009, 21 (4) 1141-1154; DOI: https://doi.org/10.1105/tpc.108.065334

      Little is known about how cellulose synthases (CESAs) reach their site of activity at the plasma membrane. Here, intracellular trafficking of CESA3 was investigated using live-cell imaging and electron microscopy. CESA3 secretion is accompanied by pausing of Golgi bodies on microtubules, and CESA3 is internalized in compartments whose movement depends on cortical microtubule array dynamics.

  3. Goto, Yumi

    1. Open Access
      A Mobile Secretory Vesicle Cluster Involved in Mass Transport from the Golgi to the Plant Cell Exterior
      Kiminori Toyooka, Yumi Goto, Satoru Asatsuma, Masato Koizumi, Toshiaki Mitsui, Ken Matsuoka
      Plant Cell Apr 2009, 21 (4) 1212-1229; DOI: https://doi.org/10.1105/tpc.108.058933

      Analysis of post-Golgi transport machinery revealed a mobile structure of clustered secretory vesicles, termed the secretory vesicle cluster (SVC), which originates from the trans-Golgi network and fuses with plasma membrane or cell plate. The presence of secretory proteins and glycans suggested that SVC is involved in mass transport from the Golgi to the cell exterior.

H

  1. Hagely, Katherine

    1. You have accessRestricted Access
      The MYB23 Gene Provides a Positive Feedback Loop for Cell Fate Specification in the Arabidopsis Root Epidermis
      Yeon Hee Kang, Victor Kirik, Martin Hulskamp, Kyoung Hee Nam, Katherine Hagely, Myeong Min Lee, John Schiefelbein
      Plant Cell Apr 2009, 21 (4) 1080-1094; DOI: https://doi.org/10.1105/tpc.108.063180

      The precise specification of distinct cell fates during development requires accurate regulatory mechanisms. This work shows that MYB23 provides a positive transcriptional feedback loop for cell fate specification in the Arabidopsis root epidermis, and together with the previously identified lateral inhibition mechanism, ensures robust establishment of the cell type pattern.

  2. Haslam, Richard P.

    1. You have accessRestricted Access
      Misexpression of FATTY ACID ELONGATION1 in the Arabidopsis Epidermis Induces Cell Death and Suggests a Critical Role for Phospholipase A2 in This Process
      José J. Reina-Pinto, Derry Voisin, Sergey Kurdyukov, Andrea Faust, Richard P. Haslam, Louise V. Michaelson, Nadia Efremova, Benni Franke, Lukas Schreiber, Johnathan A. Napier, Alexander Yephremov
      Plant Cell Apr 2009, 21 (4) 1252-1272; DOI: https://doi.org/10.1105/tpc.109.065565

      In this work, expression of a fatty acid elongase in the epidermis results in glabrous plants because newly initiated trichomes undergo rapid cell death. Chemical genetic screens identify cell death inhibitors that restore cell differentiation program.

  3. He, Guangming

    1. You have accessRestricted Access
      Genome-Wide and Organ-Specific Landscapes of Epigenetic Modifications and Their Relationships to mRNA and Small RNA Transcriptomes in Maize
      Xiangfeng Wang, Axel A. Elling, Xueyong Li, Ning Li, Zhiyu Peng, Guangming He, Hui Sun, Yijun Qi, X. Shirley Liu, Xing Wang Deng
      Plant Cell Apr 2009, 21 (4) 1053-1069; DOI: https://doi.org/10.1105/tpc.109.065714

      This genome-wide survey shows that epigenetic patterns differ significantly between protein-coding genes and transposable elements in maize. It is found that activating histone modifications co-occur, but the repressive marks H3K27me3 and DNA methylation exclude each other. Evidence is provided that changing mop1 transcript levels might lead to a tissue-specific shift of small RNA populations.

  4. Höfte, Herman

    1. You have accessRestricted Access
      Pausing of Golgi Bodies on Microtubules Regulates Secretion of Cellulose Synthase Complexes in Arabidopsis
      Elizabeth Faris Crowell, Volker Bischoff, Thierry Desprez, Aurélia Rolland, York-Dieter Stierhof, Karin Schumacher, Martine Gonneau, Herman Höfte, Samantha Vernhettes
      Plant Cell Apr 2009, 21 (4) 1141-1154; DOI: https://doi.org/10.1105/tpc.108.065334

      Little is known about how cellulose synthases (CESAs) reach their site of activity at the plasma membrane. Here, intracellular trafficking of CESA3 was investigated using live-cell imaging and electron microscopy. CESA3 secretion is accompanied by pausing of Golgi bodies on microtubules, and CESA3 is internalized in compartments whose movement depends on cortical microtubule array dynamics.

  5. Holzer, Frances M.

    1. You have accessRestricted Access
      Leucine Aminopeptidase Regulates Defense and Wound Signaling in Tomato Downstream of Jasmonic Acid
      Jonathan H. Fowler, Javier Narváez-Vásquez, Dale N. Aromdee, Véronique Pautot, Frances M. Holzer, Linda L. Walling
      Plant Cell Apr 2009, 21 (4) 1239-1251; DOI: https://doi.org/10.1105/tpc.108.065029

      This work examines the role of the late wound-response gene Leucine aminopeptidase A (LapA) in herbivory and wound-induced gene expression. Examination of silenced and overexpressing lines indicates that LAP-A promotes defense responses downstream of jasmonic acid.

  6. Hulskamp, Martin

    1. You have accessRestricted Access
      The MYB23 Gene Provides a Positive Feedback Loop for Cell Fate Specification in the Arabidopsis Root Epidermis
      Yeon Hee Kang, Victor Kirik, Martin Hulskamp, Kyoung Hee Nam, Katherine Hagely, Myeong Min Lee, John Schiefelbein
      Plant Cell Apr 2009, 21 (4) 1080-1094; DOI: https://doi.org/10.1105/tpc.108.063180

      The precise specification of distinct cell fates during development requires accurate regulatory mechanisms. This work shows that MYB23 provides a positive transcriptional feedback loop for cell fate specification in the Arabidopsis root epidermis, and together with the previously identified lateral inhibition mechanism, ensures robust establishment of the cell type pattern.

J

  1. Jetter, Reinhard

    1. Open Access
      Arabidopsis LTPG Is a Glycosylphosphatidylinositol-Anchored Lipid Transfer Protein Required for Export of Lipids to the Plant Surface
      Allan DeBono, Trevor H. Yeats, Jocelyn K.C. Rose, David Bird, Reinhard Jetter, Ljerka Kunst, Lacey Samuels
      Plant Cell Apr 2009, 21 (4) 1230-1238; DOI: https://doi.org/10.1105/tpc.108.064451

      It has long been hypothesized that extracellular transfer of lipids across the epidermal cell wall to the waxy cuticle would require lipid transfer proteins (LTPs). An LTP with a GPI-anchor, LTPG, is required for export of wax to the cuticle in the stems of Arabidopsis. LTPG is primarily localized to the plasma membrane, and recombinant LTPG displays binding affinity for a lipophilic analog.

K

  1. Kang, Yeon Hee

    1. You have accessRestricted Access
      The MYB23 Gene Provides a Positive Feedback Loop for Cell Fate Specification in the Arabidopsis Root Epidermis
      Yeon Hee Kang, Victor Kirik, Martin Hulskamp, Kyoung Hee Nam, Katherine Hagely, Myeong Min Lee, John Schiefelbein
      Plant Cell Apr 2009, 21 (4) 1080-1094; DOI: https://doi.org/10.1105/tpc.108.063180

      The precise specification of distinct cell fates during development requires accurate regulatory mechanisms. This work shows that MYB23 provides a positive transcriptional feedback loop for cell fate specification in the Arabidopsis root epidermis, and together with the previously identified lateral inhibition mechanism, ensures robust establishment of the cell type pattern.

  2. Khang, Chang Hyun

    1. Open Access
      Interaction Transcriptome Analysis Identifies Magnaporthe oryzae BAS1-4 as Biotrophy-Associated Secreted Proteins in Rice Blast Disease
      Gloria Mosquera, Martha C. Giraldo, Chang Hyun Khang, Sean Coughlan, Barbara Valent
      Plant Cell Apr 2009, 21 (4) 1273-1290; DOI: https://doi.org/10.1105/tpc.107.055228

      The authors analyze host and pathogen gene expression after enrichment for biotrophic invasive hyphae (IH) of Magnaporthe oryzae growing in the first-invaded rice cells. IH express genes encoding biotrophy-associated secreted proteins, some of which accumulate in blast biotrophic interfacial complexes in compatible interactions, resemble known avirulence effectors.

  3. Kim, Jung-Gun

    1. You have accessRestricted Access
      Xanthomonas T3S Effector XopN Suppresses PAMP-Triggered Immunity and Interacts with a Tomato Atypical Receptor-Like Kinase and TFT1
      Jung-Gun Kim, Xinyan Li, Julie Anne Roden, Kyle W. Taylor, Chris D. Aakre, Bessie Su, Sylvie Lalonde, Angela Kirik, Yanhui Chen, Gayathri Baranage, Heather McLane, Gregory B. Martin, Mary Beth Mudgett
      Plant Cell Apr 2009, 21 (4) 1305-1323; DOI: https://doi.org/10.1105/tpc.108.063123

      This work shows that the plant pathogen Xanthomonas campestris pathovar vesicatoria uses the XopN T3S effector protein to suppress tomato defense responses at the early stages of pathogen recognition. Biochemical studies indicate that XopN interacts specifically with a tomato atypical receptor kinase TARK1 that is partially required to limit bacterial multiplication in leaves.

  4. Kirik, Angela

    1. You have accessRestricted Access
      Xanthomonas T3S Effector XopN Suppresses PAMP-Triggered Immunity and Interacts with a Tomato Atypical Receptor-Like Kinase and TFT1
      Jung-Gun Kim, Xinyan Li, Julie Anne Roden, Kyle W. Taylor, Chris D. Aakre, Bessie Su, Sylvie Lalonde, Angela Kirik, Yanhui Chen, Gayathri Baranage, Heather McLane, Gregory B. Martin, Mary Beth Mudgett
      Plant Cell Apr 2009, 21 (4) 1305-1323; DOI: https://doi.org/10.1105/tpc.108.063123

      This work shows that the plant pathogen Xanthomonas campestris pathovar vesicatoria uses the XopN T3S effector protein to suppress tomato defense responses at the early stages of pathogen recognition. Biochemical studies indicate that XopN interacts specifically with a tomato atypical receptor kinase TARK1 that is partially required to limit bacterial multiplication in leaves.

  5. Kirik, Victor

    1. You have accessRestricted Access
      The MYB23 Gene Provides a Positive Feedback Loop for Cell Fate Specification in the Arabidopsis Root Epidermis
      Yeon Hee Kang, Victor Kirik, Martin Hulskamp, Kyoung Hee Nam, Katherine Hagely, Myeong Min Lee, John Schiefelbein
      Plant Cell Apr 2009, 21 (4) 1080-1094; DOI: https://doi.org/10.1105/tpc.108.063180

      The precise specification of distinct cell fates during development requires accurate regulatory mechanisms. This work shows that MYB23 provides a positive transcriptional feedback loop for cell fate specification in the Arabidopsis root epidermis, and together with the previously identified lateral inhibition mechanism, ensures robust establishment of the cell type pattern.

  6. Koizumi, Masato

    1. Open Access
      A Mobile Secretory Vesicle Cluster Involved in Mass Transport from the Golgi to the Plant Cell Exterior
      Kiminori Toyooka, Yumi Goto, Satoru Asatsuma, Masato Koizumi, Toshiaki Mitsui, Ken Matsuoka
      Plant Cell Apr 2009, 21 (4) 1212-1229; DOI: https://doi.org/10.1105/tpc.108.058933

      Analysis of post-Golgi transport machinery revealed a mobile structure of clustered secretory vesicles, termed the secretory vesicle cluster (SVC), which originates from the trans-Golgi network and fuses with plasma membrane or cell plate. The presence of secretory proteins and glycans suggested that SVC is involved in mass transport from the Golgi to the cell exterior.

  7. Korkaric, Muris

    1. Open Access
      GLK Transcription Factors Coordinate Expression of the Photosynthetic Apparatus in Arabidopsis
      Mark T. Waters, Peng Wang, Muris Korkaric, Richard G. Capper, Nigel J. Saunders, Jane A. Langdale
      Plant Cell Apr 2009, 21 (4) 1109-1128; DOI: https://doi.org/10.1105/tpc.108.065250

      GOLDEN2-LIKE (GLK) transcription factors are required for normal chloroplast development in several land plants. This study shows that GLK proteins synchronously upregulate genes relating to light harvesting and chlorophyll biosynthesis via direct interaction with promoter sequences. GLK activity most likely optimizes photosynthesis by coordinating responses to variable environmental conditions.

  8. Kornet, Noortje

    1. You have accessRestricted Access
      Members of the GCN5 Histone Acetyltransferase Complex Regulate PLETHORA-Mediated Root Stem Cell Niche Maintenance and Transit Amplifying Cell Proliferation in Arabidopsis
      Noortje Kornet, Ben Scheres
      Plant Cell Apr 2009, 21 (4) 1070-1079; DOI: https://doi.org/10.1105/tpc.108.065300

      The Arabidopsis GCN5 histone acetyltransferase complex attenuates the recently discovered gradient expression of the PLETHORA genes and thereby regulates root stem cell niche maintenance and proliferation. Therefore, chromatin modifications play an important role in stem cell maintenance and in shaping a developmentally instructive gradient in the root.

  9. Kubo, Minoru

    1. You have accessRestricted Access
      Identifying New Components Participating in the Secondary Cell Wall Formation of Vessel Elements in Zinnia and Arabidopsis
      Satoshi Endo, Edouard Pesquet, Masatoshi Yamaguchi, Gen Tashiro, Mayuko Sato, Kiminori Toyooka, Nobuyuki Nishikubo, Makiko Udagawa-Motose, Minoru Kubo, Hiroo Fukuda, Taku Demura
      Plant Cell Apr 2009, 21 (4) 1155-1165; DOI: https://doi.org/10.1105/tpc.108.059154

      This study uses an RNAi screen in Zinnia to identify two new components, Tracheary Element Differentiation-Related6 (TED6) and TED7, which contribute to cell wall biosynthesis during xylem vessel formation. The authors study TED6 and TED7 functions and interactions in Arabidopsis plants and Zinnia cultured cells.

  10. Kunst, Ljerka

    1. Open Access
      Arabidopsis LTPG Is a Glycosylphosphatidylinositol-Anchored Lipid Transfer Protein Required for Export of Lipids to the Plant Surface
      Allan DeBono, Trevor H. Yeats, Jocelyn K.C. Rose, David Bird, Reinhard Jetter, Ljerka Kunst, Lacey Samuels
      Plant Cell Apr 2009, 21 (4) 1230-1238; DOI: https://doi.org/10.1105/tpc.108.064451

      It has long been hypothesized that extracellular transfer of lipids across the epidermal cell wall to the waxy cuticle would require lipid transfer proteins (LTPs). An LTP with a GPI-anchor, LTPG, is required for export of wax to the cuticle in the stems of Arabidopsis. LTPG is primarily localized to the plasma membrane, and recombinant LTPG displays binding affinity for a lipophilic analog.

  11. Kurdyukov, Sergey

    1. You have accessRestricted Access
      Misexpression of FATTY ACID ELONGATION1 in the Arabidopsis Epidermis Induces Cell Death and Suggests a Critical Role for Phospholipase A2 in This Process
      José J. Reina-Pinto, Derry Voisin, Sergey Kurdyukov, Andrea Faust, Richard P. Haslam, Louise V. Michaelson, Nadia Efremova, Benni Franke, Lukas Schreiber, Johnathan A. Napier, Alexander Yephremov
      Plant Cell Apr 2009, 21 (4) 1252-1272; DOI: https://doi.org/10.1105/tpc.109.065565

      In this work, expression of a fatty acid elongase in the epidermis results in glabrous plants because newly initiated trichomes undergo rapid cell death. Chemical genetic screens identify cell death inhibitors that restore cell differentiation program.

  12. Kuroiwa, Haruko

    1. You have accessRestricted Access
      Suppression of Repeat-Mediated Gross Mitochondrial Genome Rearrangements by RecA in the Moss Physcomitrella patens
      Masaki Odahara, Haruko Kuroiwa, Tsuneyoshi Kuroiwa, Yasuhiko Sekine
      Plant Cell Apr 2009, 21 (4) 1182-1194; DOI: https://doi.org/10.1105/tpc.108.064709

      This work studies the role of a homolog of bacterial recombinase RecA in the dynamics of the plant mitochondrial genome. The analysis of mitochondrial recA disruptants shows that RecA does not promote but rather suppresses recombination among short repeated sequences scattered throughout the mitochondrial genome, thereby maintaining mitochondrial genome stability.

  13. Kuroiwa, Tsuneyoshi

    1. You have accessRestricted Access
      Suppression of Repeat-Mediated Gross Mitochondrial Genome Rearrangements by RecA in the Moss Physcomitrella patens
      Masaki Odahara, Haruko Kuroiwa, Tsuneyoshi Kuroiwa, Yasuhiko Sekine
      Plant Cell Apr 2009, 21 (4) 1182-1194; DOI: https://doi.org/10.1105/tpc.108.064709

      This work studies the role of a homolog of bacterial recombinase RecA in the dynamics of the plant mitochondrial genome. The analysis of mitochondrial recA disruptants shows that RecA does not promote but rather suppresses recombination among short repeated sequences scattered throughout the mitochondrial genome, thereby maintaining mitochondrial genome stability.

  14. Kyozuka, Junko

    1. You have accessRestricted Access
      Two-Step Regulation of LAX PANICLE1 Protein Accumulation in Axillary Meristem Formation in Rice
      Tetsuo Oikawa, Junko Kyozuka
      Plant Cell Apr 2009, 21 (4) 1095-1108; DOI: https://doi.org/10.1105/tpc.108.065425

      The first step of shoot branching is production of axillary meristems (AMs) that are formed in the axils of leaves. Rice LAX PANICLE1 (LAX1) is required for AM formation through the plant's life. Here, we show that LAX1 protein, produced in the boundary between the subtending leaf and the future AM, moves toward the growing AM to establish a new AM.

L

  1. Lalonde, Sylvie

    1. You have accessRestricted Access
      Xanthomonas T3S Effector XopN Suppresses PAMP-Triggered Immunity and Interacts with a Tomato Atypical Receptor-Like Kinase and TFT1
      Jung-Gun Kim, Xinyan Li, Julie Anne Roden, Kyle W. Taylor, Chris D. Aakre, Bessie Su, Sylvie Lalonde, Angela Kirik, Yanhui Chen, Gayathri Baranage, Heather McLane, Gregory B. Martin, Mary Beth Mudgett
      Plant Cell Apr 2009, 21 (4) 1305-1323; DOI: https://doi.org/10.1105/tpc.108.063123

      This work shows that the plant pathogen Xanthomonas campestris pathovar vesicatoria uses the XopN T3S effector protein to suppress tomato defense responses at the early stages of pathogen recognition. Biochemical studies indicate that XopN interacts specifically with a tomato atypical receptor kinase TARK1 that is partially required to limit bacterial multiplication in leaves.

  2. Langdale, Jane A.

    1. Open Access
      GLK Transcription Factors Coordinate Expression of the Photosynthetic Apparatus in Arabidopsis
      Mark T. Waters, Peng Wang, Muris Korkaric, Richard G. Capper, Nigel J. Saunders, Jane A. Langdale
      Plant Cell Apr 2009, 21 (4) 1109-1128; DOI: https://doi.org/10.1105/tpc.108.065250

      GOLDEN2-LIKE (GLK) transcription factors are required for normal chloroplast development in several land plants. This study shows that GLK proteins synchronously upregulate genes relating to light harvesting and chlorophyll biosynthesis via direct interaction with promoter sequences. GLK activity most likely optimizes photosynthesis by coordinating responses to variable environmental conditions.

  3. Lee, Myeong Min

    1. You have accessRestricted Access
      The MYB23 Gene Provides a Positive Feedback Loop for Cell Fate Specification in the Arabidopsis Root Epidermis
      Yeon Hee Kang, Victor Kirik, Martin Hulskamp, Kyoung Hee Nam, Katherine Hagely, Myeong Min Lee, John Schiefelbein
      Plant Cell Apr 2009, 21 (4) 1080-1094; DOI: https://doi.org/10.1105/tpc.108.063180

      The precise specification of distinct cell fates during development requires accurate regulatory mechanisms. This work shows that MYB23 provides a positive transcriptional feedback loop for cell fate specification in the Arabidopsis root epidermis, and together with the previously identified lateral inhibition mechanism, ensures robust establishment of the cell type pattern.

  4. Lee, Y.-R. Julie

    1. You have accessRestricted Access
      The WD40 Repeat Protein NEDD1 Functions in Microtubule Organization during Cell Division in Arabidopsis thaliana
      C.J. Tracy Zeng, Y.-R. Julie Lee, Bo Liu
      Plant Cell Apr 2009, 21 (4) 1129-1140; DOI: https://doi.org/10.1105/tpc.109.065953

      Higher plant cells organize microtubules in the absence of a structurally defined microtubule-organizing center. This article reports that the WD40 repeat protein NEDD1 appears preferentially toward the minus ends of microtubules and plays a critical role in microtubule organization during cell division in Arabidopsis thaliana.

  5. Li, Ning

    1. You have accessRestricted Access
      Genome-Wide and Organ-Specific Landscapes of Epigenetic Modifications and Their Relationships to mRNA and Small RNA Transcriptomes in Maize
      Xiangfeng Wang, Axel A. Elling, Xueyong Li, Ning Li, Zhiyu Peng, Guangming He, Hui Sun, Yijun Qi, X. Shirley Liu, Xing Wang Deng
      Plant Cell Apr 2009, 21 (4) 1053-1069; DOI: https://doi.org/10.1105/tpc.109.065714

      This genome-wide survey shows that epigenetic patterns differ significantly between protein-coding genes and transposable elements in maize. It is found that activating histone modifications co-occur, but the repressive marks H3K27me3 and DNA methylation exclude each other. Evidence is provided that changing mop1 transcript levels might lead to a tissue-specific shift of small RNA populations.

  6. Li, Xinyan

    1. You have accessRestricted Access
      Xanthomonas T3S Effector XopN Suppresses PAMP-Triggered Immunity and Interacts with a Tomato Atypical Receptor-Like Kinase and TFT1
      Jung-Gun Kim, Xinyan Li, Julie Anne Roden, Kyle W. Taylor, Chris D. Aakre, Bessie Su, Sylvie Lalonde, Angela Kirik, Yanhui Chen, Gayathri Baranage, Heather McLane, Gregory B. Martin, Mary Beth Mudgett
      Plant Cell Apr 2009, 21 (4) 1305-1323; DOI: https://doi.org/10.1105/tpc.108.063123

      This work shows that the plant pathogen Xanthomonas campestris pathovar vesicatoria uses the XopN T3S effector protein to suppress tomato defense responses at the early stages of pathogen recognition. Biochemical studies indicate that XopN interacts specifically with a tomato atypical receptor kinase TARK1 that is partially required to limit bacterial multiplication in leaves.

  7. Li, Xueyong

    1. You have accessRestricted Access
      Genome-Wide and Organ-Specific Landscapes of Epigenetic Modifications and Their Relationships to mRNA and Small RNA Transcriptomes in Maize
      Xiangfeng Wang, Axel A. Elling, Xueyong Li, Ning Li, Zhiyu Peng, Guangming He, Hui Sun, Yijun Qi, X. Shirley Liu, Xing Wang Deng
      Plant Cell Apr 2009, 21 (4) 1053-1069; DOI: https://doi.org/10.1105/tpc.109.065714

      This genome-wide survey shows that epigenetic patterns differ significantly between protein-coding genes and transposable elements in maize. It is found that activating histone modifications co-occur, but the repressive marks H3K27me3 and DNA methylation exclude each other. Evidence is provided that changing mop1 transcript levels might lead to a tissue-specific shift of small RNA populations.

  8. Liu, Bo

    1. You have accessRestricted Access
      The WD40 Repeat Protein NEDD1 Functions in Microtubule Organization during Cell Division in Arabidopsis thaliana
      C.J. Tracy Zeng, Y.-R. Julie Lee, Bo Liu
      Plant Cell Apr 2009, 21 (4) 1129-1140; DOI: https://doi.org/10.1105/tpc.109.065953

      Higher plant cells organize microtubules in the absence of a structurally defined microtubule-organizing center. This article reports that the WD40 repeat protein NEDD1 appears preferentially toward the minus ends of microtubules and plays a critical role in microtubule organization during cell division in Arabidopsis thaliana.

  9. Liu, X. Shirley

    1. You have accessRestricted Access
      Genome-Wide and Organ-Specific Landscapes of Epigenetic Modifications and Their Relationships to mRNA and Small RNA Transcriptomes in Maize
      Xiangfeng Wang, Axel A. Elling, Xueyong Li, Ning Li, Zhiyu Peng, Guangming He, Hui Sun, Yijun Qi, X. Shirley Liu, Xing Wang Deng
      Plant Cell Apr 2009, 21 (4) 1053-1069; DOI: https://doi.org/10.1105/tpc.109.065714

      This genome-wide survey shows that epigenetic patterns differ significantly between protein-coding genes and transposable elements in maize. It is found that activating histone modifications co-occur, but the repressive marks H3K27me3 and DNA methylation exclude each other. Evidence is provided that changing mop1 transcript levels might lead to a tissue-specific shift of small RNA populations.

M

  1. Mach, Jennifer

    1. You have accessRestricted Access
      Rice Axillary Meristem Formation Requires Directional Movement of LAX PANICLE1 Protein
      Jennifer Mach
      Plant Cell Apr 2009, 21 (4) 1027; DOI: https://doi.org/10.1105/tpc.109.210410
  2. Martin, Cathie

    1. You have accessRestricted Access
      Guidelines for Quantitative RT-PCR
      Cathie Martin
      Plant Cell Apr 2009, 21 (4) 1023; DOI: https://doi.org/10.1105/tpc.109.210480
  3. Martin, Gregory B.

    1. You have accessRestricted Access
      Xanthomonas T3S Effector XopN Suppresses PAMP-Triggered Immunity and Interacts with a Tomato Atypical Receptor-Like Kinase and TFT1
      Jung-Gun Kim, Xinyan Li, Julie Anne Roden, Kyle W. Taylor, Chris D. Aakre, Bessie Su, Sylvie Lalonde, Angela Kirik, Yanhui Chen, Gayathri Baranage, Heather McLane, Gregory B. Martin, Mary Beth Mudgett
      Plant Cell Apr 2009, 21 (4) 1305-1323; DOI: https://doi.org/10.1105/tpc.108.063123

      This work shows that the plant pathogen Xanthomonas campestris pathovar vesicatoria uses the XopN T3S effector protein to suppress tomato defense responses at the early stages of pathogen recognition. Biochemical studies indicate that XopN interacts specifically with a tomato atypical receptor kinase TARK1 that is partially required to limit bacterial multiplication in leaves.

  4. Matsuoka, Ken

    1. Open Access
      A Mobile Secretory Vesicle Cluster Involved in Mass Transport from the Golgi to the Plant Cell Exterior
      Kiminori Toyooka, Yumi Goto, Satoru Asatsuma, Masato Koizumi, Toshiaki Mitsui, Ken Matsuoka
      Plant Cell Apr 2009, 21 (4) 1212-1229; DOI: https://doi.org/10.1105/tpc.108.058933

      Analysis of post-Golgi transport machinery revealed a mobile structure of clustered secretory vesicles, termed the secretory vesicle cluster (SVC), which originates from the trans-Golgi network and fuses with plasma membrane or cell plate. The presence of secretory proteins and glycans suggested that SVC is involved in mass transport from the Golgi to the cell exterior.

  5. McLane, Heather

    1. You have accessRestricted Access
      Xanthomonas T3S Effector XopN Suppresses PAMP-Triggered Immunity and Interacts with a Tomato Atypical Receptor-Like Kinase and TFT1
      Jung-Gun Kim, Xinyan Li, Julie Anne Roden, Kyle W. Taylor, Chris D. Aakre, Bessie Su, Sylvie Lalonde, Angela Kirik, Yanhui Chen, Gayathri Baranage, Heather McLane, Gregory B. Martin, Mary Beth Mudgett
      Plant Cell Apr 2009, 21 (4) 1305-1323; DOI: https://doi.org/10.1105/tpc.108.063123

      This work shows that the plant pathogen Xanthomonas campestris pathovar vesicatoria uses the XopN T3S effector protein to suppress tomato defense responses at the early stages of pathogen recognition. Biochemical studies indicate that XopN interacts specifically with a tomato atypical receptor kinase TARK1 that is partially required to limit bacterial multiplication in leaves.

  6. Michaelson, Louise V.

    1. You have accessRestricted Access
      Misexpression of FATTY ACID ELONGATION1 in the Arabidopsis Epidermis Induces Cell Death and Suggests a Critical Role for Phospholipase A2 in This Process
      José J. Reina-Pinto, Derry Voisin, Sergey Kurdyukov, Andrea Faust, Richard P. Haslam, Louise V. Michaelson, Nadia Efremova, Benni Franke, Lukas Schreiber, Johnathan A. Napier, Alexander Yephremov
      Plant Cell Apr 2009, 21 (4) 1252-1272; DOI: https://doi.org/10.1105/tpc.109.065565

      In this work, expression of a fatty acid elongase in the epidermis results in glabrous plants because newly initiated trichomes undergo rapid cell death. Chemical genetic screens identify cell death inhibitors that restore cell differentiation program.

  7. Mitsui, Toshiaki

    1. Open Access
      A Mobile Secretory Vesicle Cluster Involved in Mass Transport from the Golgi to the Plant Cell Exterior
      Kiminori Toyooka, Yumi Goto, Satoru Asatsuma, Masato Koizumi, Toshiaki Mitsui, Ken Matsuoka
      Plant Cell Apr 2009, 21 (4) 1212-1229; DOI: https://doi.org/10.1105/tpc.108.058933

      Analysis of post-Golgi transport machinery revealed a mobile structure of clustered secretory vesicles, termed the secretory vesicle cluster (SVC), which originates from the trans-Golgi network and fuses with plasma membrane or cell plate. The presence of secretory proteins and glycans suggested that SVC is involved in mass transport from the Golgi to the cell exterior.

  8. Mosquera, Gloria

    1. Open Access
      Interaction Transcriptome Analysis Identifies Magnaporthe oryzae BAS1-4 as Biotrophy-Associated Secreted Proteins in Rice Blast Disease
      Gloria Mosquera, Martha C. Giraldo, Chang Hyun Khang, Sean Coughlan, Barbara Valent
      Plant Cell Apr 2009, 21 (4) 1273-1290; DOI: https://doi.org/10.1105/tpc.107.055228

      The authors analyze host and pathogen gene expression after enrichment for biotrophic invasive hyphae (IH) of Magnaporthe oryzae growing in the first-invaded rice cells. IH express genes encoding biotrophy-associated secreted proteins, some of which accumulate in blast biotrophic interfacial complexes in compatible interactions, resemble known avirulence effectors.

  9. Mudgett, Mary Beth

    1. You have accessRestricted Access
      Xanthomonas T3S Effector XopN Suppresses PAMP-Triggered Immunity and Interacts with a Tomato Atypical Receptor-Like Kinase and TFT1
      Jung-Gun Kim, Xinyan Li, Julie Anne Roden, Kyle W. Taylor, Chris D. Aakre, Bessie Su, Sylvie Lalonde, Angela Kirik, Yanhui Chen, Gayathri Baranage, Heather McLane, Gregory B. Martin, Mary Beth Mudgett
      Plant Cell Apr 2009, 21 (4) 1305-1323; DOI: https://doi.org/10.1105/tpc.108.063123

      This work shows that the plant pathogen Xanthomonas campestris pathovar vesicatoria uses the XopN T3S effector protein to suppress tomato defense responses at the early stages of pathogen recognition. Biochemical studies indicate that XopN interacts specifically with a tomato atypical receptor kinase TARK1 that is partially required to limit bacterial multiplication in leaves.

N

  1. Nam, Kyoung Hee

    1. You have accessRestricted Access
      The MYB23 Gene Provides a Positive Feedback Loop for Cell Fate Specification in the Arabidopsis Root Epidermis
      Yeon Hee Kang, Victor Kirik, Martin Hulskamp, Kyoung Hee Nam, Katherine Hagely, Myeong Min Lee, John Schiefelbein
      Plant Cell Apr 2009, 21 (4) 1080-1094; DOI: https://doi.org/10.1105/tpc.108.063180

      The precise specification of distinct cell fates during development requires accurate regulatory mechanisms. This work shows that MYB23 provides a positive transcriptional feedback loop for cell fate specification in the Arabidopsis root epidermis, and together with the previously identified lateral inhibition mechanism, ensures robust establishment of the cell type pattern.

  2. Napier, Johnathan A.

    1. You have accessRestricted Access
      Misexpression of FATTY ACID ELONGATION1 in the Arabidopsis Epidermis Induces Cell Death and Suggests a Critical Role for Phospholipase A2 in This Process
      José J. Reina-Pinto, Derry Voisin, Sergey Kurdyukov, Andrea Faust, Richard P. Haslam, Louise V. Michaelson, Nadia Efremova, Benni Franke, Lukas Schreiber, Johnathan A. Napier, Alexander Yephremov
      Plant Cell Apr 2009, 21 (4) 1252-1272; DOI: https://doi.org/10.1105/tpc.109.065565

      In this work, expression of a fatty acid elongase in the epidermis results in glabrous plants because newly initiated trichomes undergo rapid cell death. Chemical genetic screens identify cell death inhibitors that restore cell differentiation program.

  3. Narváez-Vásquez, Javier

    1. You have accessRestricted Access
      Leucine Aminopeptidase Regulates Defense and Wound Signaling in Tomato Downstream of Jasmonic Acid
      Jonathan H. Fowler, Javier Narváez-Vásquez, Dale N. Aromdee, Véronique Pautot, Frances M. Holzer, Linda L. Walling
      Plant Cell Apr 2009, 21 (4) 1239-1251; DOI: https://doi.org/10.1105/tpc.108.065029

      This work examines the role of the late wound-response gene Leucine aminopeptidase A (LapA) in herbivory and wound-induced gene expression. Examination of silenced and overexpressing lines indicates that LAP-A promotes defense responses downstream of jasmonic acid.

  4. Ninomiya, Sachiko

    1. You have accessRestricted Access
      Atg26-Mediated Pexophagy Is Required for Host Invasion by the Plant Pathogenic Fungus Colletotrichum orbiculare
      Makoto Asakura, Sachiko Ninomiya, Miki Sugimoto, Masahide Oku, Shun-ichi Yamashita, Tetsuro Okuno, Yasuyoshi Sakai, Yoshitaka Takano
      Plant Cell Apr 2009, 21 (4) 1291-1304; DOI: https://doi.org/10.1105/tpc.108.060996

      For plant infection, the cucumber anthracnose fungus requires Atg26, a glucosyl transferase involved in pexophagy, the selective degradation of peroxisomes. Appressoria of an atg26 mutant fail to develop invasion hyphae and show defective pexophagy. Domain analysis of Atg26 suggests that both its phosphoinositide binding domain and catalytic domain are required for pexophagy and pathogenicity.

  5. Nishii, Ichiro

    1. You have accessRestricted Access
      Controlled Enlargement of the Glycoprotein Vesicle Surrounding a Volvox Embryo Requires the InvB Nucleotide-Sugar Transporter and Is Required for Normal Morphogenesis
      Noriko Ueki, Ichiro Nishii
      Plant Cell Apr 2009, 21 (4) 1166-1181; DOI: https://doi.org/10.1105/tpc.109.066159

      Volvox embryos undergo a morphogenetic process called inversion, by which they turn from inside-out to right-side-out. The authors characterize an InvB mutant that fails to invert. They show that InvB is a nucleotide-sugar transporter that is required during embryogenesis for enlarging the vesicle that surrounds the embryo to make room for the embryo to invert.

  6. Nishikubo, Nobuyuki

    1. You have accessRestricted Access
      Identifying New Components Participating in the Secondary Cell Wall Formation of Vessel Elements in Zinnia and Arabidopsis
      Satoshi Endo, Edouard Pesquet, Masatoshi Yamaguchi, Gen Tashiro, Mayuko Sato, Kiminori Toyooka, Nobuyuki Nishikubo, Makiko Udagawa-Motose, Minoru Kubo, Hiroo Fukuda, Taku Demura
      Plant Cell Apr 2009, 21 (4) 1155-1165; DOI: https://doi.org/10.1105/tpc.108.059154

      This study uses an RNAi screen in Zinnia to identify two new components, Tracheary Element Differentiation-Related6 (TED6) and TED7, which contribute to cell wall biosynthesis during xylem vessel formation. The authors study TED6 and TED7 functions and interactions in Arabidopsis plants and Zinnia cultured cells.

  7. Noh, Bosl

    1. You have accessRestricted Access
      The RNA Binding Protein ELF9 Directly Reduces SUPPRESSOR OF OVEREXPRESSION OF CO1 Transcript Levels in Arabidopsis, Possibly via Nonsense-Mediated mRNA Decay
      Hae-Ryong Song, Ju-Dong Song, Jung-Nam Cho, Richard M. Amasino, Bosl Noh, Yoo-Sun Noh
      Plant Cell Apr 2009, 21 (4) 1195-1211; DOI: https://doi.org/10.1105/tpc.108.064774

      This work shows that SOC1 transcripts are directly recognized and regulated by an RNA binding protein EARLY FLOWERING9 (ELF9). In addition, ELF9 regulates multiple transcripts that are the targets of nonsense-mediated mRNA decay (NMD). Thus, ELF9 might be an RNA binding component of the Arabidopsis NMD system.

  8. Noh, Yoo-Sun

    1. You have accessRestricted Access
      The RNA Binding Protein ELF9 Directly Reduces SUPPRESSOR OF OVEREXPRESSION OF CO1 Transcript Levels in Arabidopsis, Possibly via Nonsense-Mediated mRNA Decay
      Hae-Ryong Song, Ju-Dong Song, Jung-Nam Cho, Richard M. Amasino, Bosl Noh, Yoo-Sun Noh
      Plant Cell Apr 2009, 21 (4) 1195-1211; DOI: https://doi.org/10.1105/tpc.108.064774

      This work shows that SOC1 transcripts are directly recognized and regulated by an RNA binding protein EARLY FLOWERING9 (ELF9). In addition, ELF9 regulates multiple transcripts that are the targets of nonsense-mediated mRNA decay (NMD). Thus, ELF9 might be an RNA binding component of the Arabidopsis NMD system.

O

  1. Odahara, Masaki

    1. You have accessRestricted Access
      Suppression of Repeat-Mediated Gross Mitochondrial Genome Rearrangements by RecA in the Moss Physcomitrella patens
      Masaki Odahara, Haruko Kuroiwa, Tsuneyoshi Kuroiwa, Yasuhiko Sekine
      Plant Cell Apr 2009, 21 (4) 1182-1194; DOI: https://doi.org/10.1105/tpc.108.064709

      This work studies the role of a homolog of bacterial recombinase RecA in the dynamics of the plant mitochondrial genome. The analysis of mitochondrial recA disruptants shows that RecA does not promote but rather suppresses recombination among short repeated sequences scattered throughout the mitochondrial genome, thereby maintaining mitochondrial genome stability.

  2. Oikawa, Tetsuo

    1. You have accessRestricted Access
      Two-Step Regulation of LAX PANICLE1 Protein Accumulation in Axillary Meristem Formation in Rice
      Tetsuo Oikawa, Junko Kyozuka
      Plant Cell Apr 2009, 21 (4) 1095-1108; DOI: https://doi.org/10.1105/tpc.108.065425

      The first step of shoot branching is production of axillary meristems (AMs) that are formed in the axils of leaves. Rice LAX PANICLE1 (LAX1) is required for AM formation through the plant's life. Here, we show that LAX1 protein, produced in the boundary between the subtending leaf and the future AM, moves toward the growing AM to establish a new AM.

  3. Oku, Masahide

    1. You have accessRestricted Access
      Atg26-Mediated Pexophagy Is Required for Host Invasion by the Plant Pathogenic Fungus Colletotrichum orbiculare
      Makoto Asakura, Sachiko Ninomiya, Miki Sugimoto, Masahide Oku, Shun-ichi Yamashita, Tetsuro Okuno, Yasuyoshi Sakai, Yoshitaka Takano
      Plant Cell Apr 2009, 21 (4) 1291-1304; DOI: https://doi.org/10.1105/tpc.108.060996

      For plant infection, the cucumber anthracnose fungus requires Atg26, a glucosyl transferase involved in pexophagy, the selective degradation of peroxisomes. Appressoria of an atg26 mutant fail to develop invasion hyphae and show defective pexophagy. Domain analysis of Atg26 suggests that both its phosphoinositide binding domain and catalytic domain are required for pexophagy and pathogenicity.

  4. Okuno, Tetsuro

    1. You have accessRestricted Access
      Atg26-Mediated Pexophagy Is Required for Host Invasion by the Plant Pathogenic Fungus Colletotrichum orbiculare
      Makoto Asakura, Sachiko Ninomiya, Miki Sugimoto, Masahide Oku, Shun-ichi Yamashita, Tetsuro Okuno, Yasuyoshi Sakai, Yoshitaka Takano
      Plant Cell Apr 2009, 21 (4) 1291-1304; DOI: https://doi.org/10.1105/tpc.108.060996

      For plant infection, the cucumber anthracnose fungus requires Atg26, a glucosyl transferase involved in pexophagy, the selective degradation of peroxisomes. Appressoria of an atg26 mutant fail to develop invasion hyphae and show defective pexophagy. Domain analysis of Atg26 suggests that both its phosphoinositide binding domain and catalytic domain are required for pexophagy and pathogenicity.

P

  1. Pautot, Véronique

    1. You have accessRestricted Access
      Leucine Aminopeptidase Regulates Defense and Wound Signaling in Tomato Downstream of Jasmonic Acid
      Jonathan H. Fowler, Javier Narváez-Vásquez, Dale N. Aromdee, Véronique Pautot, Frances M. Holzer, Linda L. Walling
      Plant Cell Apr 2009, 21 (4) 1239-1251; DOI: https://doi.org/10.1105/tpc.108.065029

      This work examines the role of the late wound-response gene Leucine aminopeptidase A (LapA) in herbivory and wound-induced gene expression. Examination of silenced and overexpressing lines indicates that LAP-A promotes defense responses downstream of jasmonic acid.

  2. Peng, Zhiyu

    1. You have accessRestricted Access
      Genome-Wide and Organ-Specific Landscapes of Epigenetic Modifications and Their Relationships to mRNA and Small RNA Transcriptomes in Maize
      Xiangfeng Wang, Axel A. Elling, Xueyong Li, Ning Li, Zhiyu Peng, Guangming He, Hui Sun, Yijun Qi, X. Shirley Liu, Xing Wang Deng
      Plant Cell Apr 2009, 21 (4) 1053-1069; DOI: https://doi.org/10.1105/tpc.109.065714

      This genome-wide survey shows that epigenetic patterns differ significantly between protein-coding genes and transposable elements in maize. It is found that activating histone modifications co-occur, but the repressive marks H3K27me3 and DNA methylation exclude each other. Evidence is provided that changing mop1 transcript levels might lead to a tissue-specific shift of small RNA populations.

  3. Pesquet, Edouard

    1. You have accessRestricted Access
      Identifying New Components Participating in the Secondary Cell Wall Formation of Vessel Elements in Zinnia and Arabidopsis
      Satoshi Endo, Edouard Pesquet, Masatoshi Yamaguchi, Gen Tashiro, Mayuko Sato, Kiminori Toyooka, Nobuyuki Nishikubo, Makiko Udagawa-Motose, Minoru Kubo, Hiroo Fukuda, Taku Demura
      Plant Cell Apr 2009, 21 (4) 1155-1165; DOI: https://doi.org/10.1105/tpc.108.059154

      This study uses an RNAi screen in Zinnia to identify two new components, Tracheary Element Differentiation-Related6 (TED6) and TED7, which contribute to cell wall biosynthesis during xylem vessel formation. The authors study TED6 and TED7 functions and interactions in Arabidopsis plants and Zinnia cultured cells.

  4. Powers, Stephen J.

    1. You have accessRestricted Access
      Real-Time Quantitative RT-PCR: Design, Calculations, and Statistics
      Ivo Rieu, Stephen J. Powers
      Plant Cell Apr 2009, 21 (4) 1031-1033; DOI: https://doi.org/10.1105/tpc.109.066001
  5. Provart, Nicholas J.

    1. You have accessRestricted Access
      Web-Queryable Large-Scale Data Sets for Hypothesis Generation in Plant Biology
      Siobhan M. Brady, Nicholas J. Provart
      Plant Cell Apr 2009, 21 (4) 1034-1051; DOI: https://doi.org/10.1105/tpc.109.066050

Q

  1. Qi, Yijun

    1. You have accessRestricted Access
      Genome-Wide and Organ-Specific Landscapes of Epigenetic Modifications and Their Relationships to mRNA and Small RNA Transcriptomes in Maize
      Xiangfeng Wang, Axel A. Elling, Xueyong Li, Ning Li, Zhiyu Peng, Guangming He, Hui Sun, Yijun Qi, X. Shirley Liu, Xing Wang Deng
      Plant Cell Apr 2009, 21 (4) 1053-1069; DOI: https://doi.org/10.1105/tpc.109.065714

      This genome-wide survey shows that epigenetic patterns differ significantly between protein-coding genes and transposable elements in maize. It is found that activating histone modifications co-occur, but the repressive marks H3K27me3 and DNA methylation exclude each other. Evidence is provided that changing mop1 transcript levels might lead to a tissue-specific shift of small RNA populations.

R

  1. Reina-Pinto, José J.

    1. You have accessRestricted Access
      Misexpression of FATTY ACID ELONGATION1 in the Arabidopsis Epidermis Induces Cell Death and Suggests a Critical Role for Phospholipase A2 in This Process
      José J. Reina-Pinto, Derry Voisin, Sergey Kurdyukov, Andrea Faust, Richard P. Haslam, Louise V. Michaelson, Nadia Efremova, Benni Franke, Lukas Schreiber, Johnathan A. Napier, Alexander Yephremov
      Plant Cell Apr 2009, 21 (4) 1252-1272; DOI: https://doi.org/10.1105/tpc.109.065565

      In this work, expression of a fatty acid elongase in the epidermis results in glabrous plants because newly initiated trichomes undergo rapid cell death. Chemical genetic screens identify cell death inhibitors that restore cell differentiation program.

  2. Rieu, Ivo

    1. You have accessRestricted Access
      Real-Time Quantitative RT-PCR: Design, Calculations, and Statistics
      Ivo Rieu, Stephen J. Powers
      Plant Cell Apr 2009, 21 (4) 1031-1033; DOI: https://doi.org/10.1105/tpc.109.066001
  3. Roden, Julie Anne

    1. You have accessRestricted Access
      Xanthomonas T3S Effector XopN Suppresses PAMP-Triggered Immunity and Interacts with a Tomato Atypical Receptor-Like Kinase and TFT1
      Jung-Gun Kim, Xinyan Li, Julie Anne Roden, Kyle W. Taylor, Chris D. Aakre, Bessie Su, Sylvie Lalonde, Angela Kirik, Yanhui Chen, Gayathri Baranage, Heather McLane, Gregory B. Martin, Mary Beth Mudgett
      Plant Cell Apr 2009, 21 (4) 1305-1323; DOI: https://doi.org/10.1105/tpc.108.063123

      This work shows that the plant pathogen Xanthomonas campestris pathovar vesicatoria uses the XopN T3S effector protein to suppress tomato defense responses at the early stages of pathogen recognition. Biochemical studies indicate that XopN interacts specifically with a tomato atypical receptor kinase TARK1 that is partially required to limit bacterial multiplication in leaves.

  4. Rolland, Aurélia

    1. You have accessRestricted Access
      Pausing of Golgi Bodies on Microtubules Regulates Secretion of Cellulose Synthase Complexes in Arabidopsis
      Elizabeth Faris Crowell, Volker Bischoff, Thierry Desprez, Aurélia Rolland, York-Dieter Stierhof, Karin Schumacher, Martine Gonneau, Herman Höfte, Samantha Vernhettes
      Plant Cell Apr 2009, 21 (4) 1141-1154; DOI: https://doi.org/10.1105/tpc.108.065334

      Little is known about how cellulose synthases (CESAs) reach their site of activity at the plasma membrane. Here, intracellular trafficking of CESA3 was investigated using live-cell imaging and electron microscopy. CESA3 secretion is accompanied by pausing of Golgi bodies on microtubules, and CESA3 is internalized in compartments whose movement depends on cortical microtubule array dynamics.

  5. Rose, Jocelyn K.C.

    1. Open Access
      Arabidopsis LTPG Is a Glycosylphosphatidylinositol-Anchored Lipid Transfer Protein Required for Export of Lipids to the Plant Surface
      Allan DeBono, Trevor H. Yeats, Jocelyn K.C. Rose, David Bird, Reinhard Jetter, Ljerka Kunst, Lacey Samuels
      Plant Cell Apr 2009, 21 (4) 1230-1238; DOI: https://doi.org/10.1105/tpc.108.064451

      It has long been hypothesized that extracellular transfer of lipids across the epidermal cell wall to the waxy cuticle would require lipid transfer proteins (LTPs). An LTP with a GPI-anchor, LTPG, is required for export of wax to the cuticle in the stems of Arabidopsis. LTPG is primarily localized to the plasma membrane, and recombinant LTPG displays binding affinity for a lipophilic analog.

S

  1. Sakai, Yasuyoshi

    1. You have accessRestricted Access
      Atg26-Mediated Pexophagy Is Required for Host Invasion by the Plant Pathogenic Fungus Colletotrichum orbiculare
      Makoto Asakura, Sachiko Ninomiya, Miki Sugimoto, Masahide Oku, Shun-ichi Yamashita, Tetsuro Okuno, Yasuyoshi Sakai, Yoshitaka Takano
      Plant Cell Apr 2009, 21 (4) 1291-1304; DOI: https://doi.org/10.1105/tpc.108.060996

      For plant infection, the cucumber anthracnose fungus requires Atg26, a glucosyl transferase involved in pexophagy, the selective degradation of peroxisomes. Appressoria of an atg26 mutant fail to develop invasion hyphae and show defective pexophagy. Domain analysis of Atg26 suggests that both its phosphoinositide binding domain and catalytic domain are required for pexophagy and pathogenicity.

  2. Samuels, Lacey

    1. Open Access
      Arabidopsis LTPG Is a Glycosylphosphatidylinositol-Anchored Lipid Transfer Protein Required for Export of Lipids to the Plant Surface
      Allan DeBono, Trevor H. Yeats, Jocelyn K.C. Rose, David Bird, Reinhard Jetter, Ljerka Kunst, Lacey Samuels
      Plant Cell Apr 2009, 21 (4) 1230-1238; DOI: https://doi.org/10.1105/tpc.108.064451

      It has long been hypothesized that extracellular transfer of lipids across the epidermal cell wall to the waxy cuticle would require lipid transfer proteins (LTPs). An LTP with a GPI-anchor, LTPG, is required for export of wax to the cuticle in the stems of Arabidopsis. LTPG is primarily localized to the plasma membrane, and recombinant LTPG displays binding affinity for a lipophilic analog.

  3. Sato, Mayuko

    1. You have accessRestricted Access
      Identifying New Components Participating in the Secondary Cell Wall Formation of Vessel Elements in Zinnia and Arabidopsis
      Satoshi Endo, Edouard Pesquet, Masatoshi Yamaguchi, Gen Tashiro, Mayuko Sato, Kiminori Toyooka, Nobuyuki Nishikubo, Makiko Udagawa-Motose, Minoru Kubo, Hiroo Fukuda, Taku Demura
      Plant Cell Apr 2009, 21 (4) 1155-1165; DOI: https://doi.org/10.1105/tpc.108.059154

      This study uses an RNAi screen in Zinnia to identify two new components, Tracheary Element Differentiation-Related6 (TED6) and TED7, which contribute to cell wall biosynthesis during xylem vessel formation. The authors study TED6 and TED7 functions and interactions in Arabidopsis plants and Zinnia cultured cells.

  4. Saunders, Nigel J.

    1. Open Access
      GLK Transcription Factors Coordinate Expression of the Photosynthetic Apparatus in Arabidopsis
      Mark T. Waters, Peng Wang, Muris Korkaric, Richard G. Capper, Nigel J. Saunders, Jane A. Langdale
      Plant Cell Apr 2009, 21 (4) 1109-1128; DOI: https://doi.org/10.1105/tpc.108.065250

      GOLDEN2-LIKE (GLK) transcription factors are required for normal chloroplast development in several land plants. This study shows that GLK proteins synchronously upregulate genes relating to light harvesting and chlorophyll biosynthesis via direct interaction with promoter sequences. GLK activity most likely optimizes photosynthesis by coordinating responses to variable environmental conditions.

  5. Scheres, Ben

    1. You have accessRestricted Access
      Members of the GCN5 Histone Acetyltransferase Complex Regulate PLETHORA-Mediated Root Stem Cell Niche Maintenance and Transit Amplifying Cell Proliferation in Arabidopsis
      Noortje Kornet, Ben Scheres
      Plant Cell Apr 2009, 21 (4) 1070-1079; DOI: https://doi.org/10.1105/tpc.108.065300

      The Arabidopsis GCN5 histone acetyltransferase complex attenuates the recently discovered gradient expression of the PLETHORA genes and thereby regulates root stem cell niche maintenance and proliferation. Therefore, chromatin modifications play an important role in stem cell maintenance and in shaping a developmentally instructive gradient in the root.

  6. Schiefelbein, John

    1. You have accessRestricted Access
      The MYB23 Gene Provides a Positive Feedback Loop for Cell Fate Specification in the Arabidopsis Root Epidermis
      Yeon Hee Kang, Victor Kirik, Martin Hulskamp, Kyoung Hee Nam, Katherine Hagely, Myeong Min Lee, John Schiefelbein
      Plant Cell Apr 2009, 21 (4) 1080-1094; DOI: https://doi.org/10.1105/tpc.108.063180

      The precise specification of distinct cell fates during development requires accurate regulatory mechanisms. This work shows that MYB23 provides a positive transcriptional feedback loop for cell fate specification in the Arabidopsis root epidermis, and together with the previously identified lateral inhibition mechanism, ensures robust establishment of the cell type pattern.

  7. Schreiber, Lukas

    1. You have accessRestricted Access
      Misexpression of FATTY ACID ELONGATION1 in the Arabidopsis Epidermis Induces Cell Death and Suggests a Critical Role for Phospholipase A2 in This Process
      José J. Reina-Pinto, Derry Voisin, Sergey Kurdyukov, Andrea Faust, Richard P. Haslam, Louise V. Michaelson, Nadia Efremova, Benni Franke, Lukas Schreiber, Johnathan A. Napier, Alexander Yephremov
      Plant Cell Apr 2009, 21 (4) 1252-1272; DOI: https://doi.org/10.1105/tpc.109.065565

      In this work, expression of a fatty acid elongase in the epidermis results in glabrous plants because newly initiated trichomes undergo rapid cell death. Chemical genetic screens identify cell death inhibitors that restore cell differentiation program.

  8. Schumacher, Karin

    1. You have accessRestricted Access
      Pausing of Golgi Bodies on Microtubules Regulates Secretion of Cellulose Synthase Complexes in Arabidopsis
      Elizabeth Faris Crowell, Volker Bischoff, Thierry Desprez, Aurélia Rolland, York-Dieter Stierhof, Karin Schumacher, Martine Gonneau, Herman Höfte, Samantha Vernhettes
      Plant Cell Apr 2009, 21 (4) 1141-1154; DOI: https://doi.org/10.1105/tpc.108.065334

      Little is known about how cellulose synthases (CESAs) reach their site of activity at the plasma membrane. Here, intracellular trafficking of CESA3 was investigated using live-cell imaging and electron microscopy. CESA3 secretion is accompanied by pausing of Golgi bodies on microtubules, and CESA3 is internalized in compartments whose movement depends on cortical microtubule array dynamics.

  9. Sekine, Yasuhiko

    1. You have accessRestricted Access
      Suppression of Repeat-Mediated Gross Mitochondrial Genome Rearrangements by RecA in the Moss Physcomitrella patens
      Masaki Odahara, Haruko Kuroiwa, Tsuneyoshi Kuroiwa, Yasuhiko Sekine
      Plant Cell Apr 2009, 21 (4) 1182-1194; DOI: https://doi.org/10.1105/tpc.108.064709

      This work studies the role of a homolog of bacterial recombinase RecA in the dynamics of the plant mitochondrial genome. The analysis of mitochondrial recA disruptants shows that RecA does not promote but rather suppresses recombination among short repeated sequences scattered throughout the mitochondrial genome, thereby maintaining mitochondrial genome stability.

  10. Song, Hae-Ryong

    1. You have accessRestricted Access
      The RNA Binding Protein ELF9 Directly Reduces SUPPRESSOR OF OVEREXPRESSION OF CO1 Transcript Levels in Arabidopsis, Possibly via Nonsense-Mediated mRNA Decay
      Hae-Ryong Song, Ju-Dong Song, Jung-Nam Cho, Richard M. Amasino, Bosl Noh, Yoo-Sun Noh
      Plant Cell Apr 2009, 21 (4) 1195-1211; DOI: https://doi.org/10.1105/tpc.108.064774

      This work shows that SOC1 transcripts are directly recognized and regulated by an RNA binding protein EARLY FLOWERING9 (ELF9). In addition, ELF9 regulates multiple transcripts that are the targets of nonsense-mediated mRNA decay (NMD). Thus, ELF9 might be an RNA binding component of the Arabidopsis NMD system.

  11. Song, Ju-Dong

    1. You have accessRestricted Access
      The RNA Binding Protein ELF9 Directly Reduces SUPPRESSOR OF OVEREXPRESSION OF CO1 Transcript Levels in Arabidopsis, Possibly via Nonsense-Mediated mRNA Decay
      Hae-Ryong Song, Ju-Dong Song, Jung-Nam Cho, Richard M. Amasino, Bosl Noh, Yoo-Sun Noh
      Plant Cell Apr 2009, 21 (4) 1195-1211; DOI: https://doi.org/10.1105/tpc.108.064774

      This work shows that SOC1 transcripts are directly recognized and regulated by an RNA binding protein EARLY FLOWERING9 (ELF9). In addition, ELF9 regulates multiple transcripts that are the targets of nonsense-mediated mRNA decay (NMD). Thus, ELF9 might be an RNA binding component of the Arabidopsis NMD system.

  12. Stierhof, York-Dieter

    1. You have accessRestricted Access
      Pausing of Golgi Bodies on Microtubules Regulates Secretion of Cellulose Synthase Complexes in Arabidopsis
      Elizabeth Faris Crowell, Volker Bischoff, Thierry Desprez, Aurélia Rolland, York-Dieter Stierhof, Karin Schumacher, Martine Gonneau, Herman Höfte, Samantha Vernhettes
      Plant Cell Apr 2009, 21 (4) 1141-1154; DOI: https://doi.org/10.1105/tpc.108.065334

      Little is known about how cellulose synthases (CESAs) reach their site of activity at the plasma membrane. Here, intracellular trafficking of CESA3 was investigated using live-cell imaging and electron microscopy. CESA3 secretion is accompanied by pausing of Golgi bodies on microtubules, and CESA3 is internalized in compartments whose movement depends on cortical microtubule array dynamics.

  13. Su, Bessie

    1. You have accessRestricted Access
      Xanthomonas T3S Effector XopN Suppresses PAMP-Triggered Immunity and Interacts with a Tomato Atypical Receptor-Like Kinase and TFT1
      Jung-Gun Kim, Xinyan Li, Julie Anne Roden, Kyle W. Taylor, Chris D. Aakre, Bessie Su, Sylvie Lalonde, Angela Kirik, Yanhui Chen, Gayathri Baranage, Heather McLane, Gregory B. Martin, Mary Beth Mudgett
      Plant Cell Apr 2009, 21 (4) 1305-1323; DOI: https://doi.org/10.1105/tpc.108.063123

      This work shows that the plant pathogen Xanthomonas campestris pathovar vesicatoria uses the XopN T3S effector protein to suppress tomato defense responses at the early stages of pathogen recognition. Biochemical studies indicate that XopN interacts specifically with a tomato atypical receptor kinase TARK1 that is partially required to limit bacterial multiplication in leaves.

  14. Sugimoto, Miki

    1. You have accessRestricted Access
      Atg26-Mediated Pexophagy Is Required for Host Invasion by the Plant Pathogenic Fungus Colletotrichum orbiculare
      Makoto Asakura, Sachiko Ninomiya, Miki Sugimoto, Masahide Oku, Shun-ichi Yamashita, Tetsuro Okuno, Yasuyoshi Sakai, Yoshitaka Takano
      Plant Cell Apr 2009, 21 (4) 1291-1304; DOI: https://doi.org/10.1105/tpc.108.060996

      For plant infection, the cucumber anthracnose fungus requires Atg26, a glucosyl transferase involved in pexophagy, the selective degradation of peroxisomes. Appressoria of an atg26 mutant fail to develop invasion hyphae and show defective pexophagy. Domain analysis of Atg26 suggests that both its phosphoinositide binding domain and catalytic domain are required for pexophagy and pathogenicity.

  15. Sun, Hui

    1. You have accessRestricted Access
      Genome-Wide and Organ-Specific Landscapes of Epigenetic Modifications and Their Relationships to mRNA and Small RNA Transcriptomes in Maize
      Xiangfeng Wang, Axel A. Elling, Xueyong Li, Ning Li, Zhiyu Peng, Guangming He, Hui Sun, Yijun Qi, X. Shirley Liu, Xing Wang Deng
      Plant Cell Apr 2009, 21 (4) 1053-1069; DOI: https://doi.org/10.1105/tpc.109.065714

      This genome-wide survey shows that epigenetic patterns differ significantly between protein-coding genes and transposable elements in maize. It is found that activating histone modifications co-occur, but the repressive marks H3K27me3 and DNA methylation exclude each other. Evidence is provided that changing mop1 transcript levels might lead to a tissue-specific shift of small RNA populations.

T

  1. Takano, Yoshitaka

    1. You have accessRestricted Access
      Atg26-Mediated Pexophagy Is Required for Host Invasion by the Plant Pathogenic Fungus Colletotrichum orbiculare
      Makoto Asakura, Sachiko Ninomiya, Miki Sugimoto, Masahide Oku, Shun-ichi Yamashita, Tetsuro Okuno, Yasuyoshi Sakai, Yoshitaka Takano
      Plant Cell Apr 2009, 21 (4) 1291-1304; DOI: https://doi.org/10.1105/tpc.108.060996

      For plant infection, the cucumber anthracnose fungus requires Atg26, a glucosyl transferase involved in pexophagy, the selective degradation of peroxisomes. Appressoria of an atg26 mutant fail to develop invasion hyphae and show defective pexophagy. Domain analysis of Atg26 suggests that both its phosphoinositide binding domain and catalytic domain are required for pexophagy and pathogenicity.

  2. Tashiro, Gen

    1. You have accessRestricted Access
      Identifying New Components Participating in the Secondary Cell Wall Formation of Vessel Elements in Zinnia and Arabidopsis
      Satoshi Endo, Edouard Pesquet, Masatoshi Yamaguchi, Gen Tashiro, Mayuko Sato, Kiminori Toyooka, Nobuyuki Nishikubo, Makiko Udagawa-Motose, Minoru Kubo, Hiroo Fukuda, Taku Demura
      Plant Cell Apr 2009, 21 (4) 1155-1165; DOI: https://doi.org/10.1105/tpc.108.059154

      This study uses an RNAi screen in Zinnia to identify two new components, Tracheary Element Differentiation-Related6 (TED6) and TED7, which contribute to cell wall biosynthesis during xylem vessel formation. The authors study TED6 and TED7 functions and interactions in Arabidopsis plants and Zinnia cultured cells.

  3. Taylor, Kyle W.

    1. You have accessRestricted Access
      Xanthomonas T3S Effector XopN Suppresses PAMP-Triggered Immunity and Interacts with a Tomato Atypical Receptor-Like Kinase and TFT1
      Jung-Gun Kim, Xinyan Li, Julie Anne Roden, Kyle W. Taylor, Chris D. Aakre, Bessie Su, Sylvie Lalonde, Angela Kirik, Yanhui Chen, Gayathri Baranage, Heather McLane, Gregory B. Martin, Mary Beth Mudgett
      Plant Cell Apr 2009, 21 (4) 1305-1323; DOI: https://doi.org/10.1105/tpc.108.063123

      This work shows that the plant pathogen Xanthomonas campestris pathovar vesicatoria uses the XopN T3S effector protein to suppress tomato defense responses at the early stages of pathogen recognition. Biochemical studies indicate that XopN interacts specifically with a tomato atypical receptor kinase TARK1 that is partially required to limit bacterial multiplication in leaves.

  4. Toyooka, Kiminori

    1. You have accessRestricted Access
      Identifying New Components Participating in the Secondary Cell Wall Formation of Vessel Elements in Zinnia and Arabidopsis
      Satoshi Endo, Edouard Pesquet, Masatoshi Yamaguchi, Gen Tashiro, Mayuko Sato, Kiminori Toyooka, Nobuyuki Nishikubo, Makiko Udagawa-Motose, Minoru Kubo, Hiroo Fukuda, Taku Demura
      Plant Cell Apr 2009, 21 (4) 1155-1165; DOI: https://doi.org/10.1105/tpc.108.059154

      This study uses an RNAi screen in Zinnia to identify two new components, Tracheary Element Differentiation-Related6 (TED6) and TED7, which contribute to cell wall biosynthesis during xylem vessel formation. The authors study TED6 and TED7 functions and interactions in Arabidopsis plants and Zinnia cultured cells.

    2. Open Access
      A Mobile Secretory Vesicle Cluster Involved in Mass Transport from the Golgi to the Plant Cell Exterior
      Kiminori Toyooka, Yumi Goto, Satoru Asatsuma, Masato Koizumi, Toshiaki Mitsui, Ken Matsuoka
      Plant Cell Apr 2009, 21 (4) 1212-1229; DOI: https://doi.org/10.1105/tpc.108.058933

      Analysis of post-Golgi transport machinery revealed a mobile structure of clustered secretory vesicles, termed the secretory vesicle cluster (SVC), which originates from the trans-Golgi network and fuses with plasma membrane or cell plate. The presence of secretory proteins and glycans suggested that SVC is involved in mass transport from the Golgi to the cell exterior.

U

  1. Udagawa-Motose, Makiko

    1. You have accessRestricted Access
      Identifying New Components Participating in the Secondary Cell Wall Formation of Vessel Elements in Zinnia and Arabidopsis
      Satoshi Endo, Edouard Pesquet, Masatoshi Yamaguchi, Gen Tashiro, Mayuko Sato, Kiminori Toyooka, Nobuyuki Nishikubo, Makiko Udagawa-Motose, Minoru Kubo, Hiroo Fukuda, Taku Demura
      Plant Cell Apr 2009, 21 (4) 1155-1165; DOI: https://doi.org/10.1105/tpc.108.059154

      This study uses an RNAi screen in Zinnia to identify two new components, Tracheary Element Differentiation-Related6 (TED6) and TED7, which contribute to cell wall biosynthesis during xylem vessel formation. The authors study TED6 and TED7 functions and interactions in Arabidopsis plants and Zinnia cultured cells.

  2. Ueki, Noriko

    1. You have accessRestricted Access
      Controlled Enlargement of the Glycoprotein Vesicle Surrounding a Volvox Embryo Requires the InvB Nucleotide-Sugar Transporter and Is Required for Normal Morphogenesis
      Noriko Ueki, Ichiro Nishii
      Plant Cell Apr 2009, 21 (4) 1166-1181; DOI: https://doi.org/10.1105/tpc.109.066159

      Volvox embryos undergo a morphogenetic process called inversion, by which they turn from inside-out to right-side-out. The authors characterize an InvB mutant that fails to invert. They show that InvB is a nucleotide-sugar transporter that is required during embryogenesis for enlarging the vesicle that surrounds the embryo to make room for the embryo to invert.

V

  1. Valent, Barbara

    1. Open Access
      Interaction Transcriptome Analysis Identifies Magnaporthe oryzae BAS1-4 as Biotrophy-Associated Secreted Proteins in Rice Blast Disease
      Gloria Mosquera, Martha C. Giraldo, Chang Hyun Khang, Sean Coughlan, Barbara Valent
      Plant Cell Apr 2009, 21 (4) 1273-1290; DOI: https://doi.org/10.1105/tpc.107.055228

      The authors analyze host and pathogen gene expression after enrichment for biotrophic invasive hyphae (IH) of Magnaporthe oryzae growing in the first-invaded rice cells. IH express genes encoding biotrophy-associated secreted proteins, some of which accumulate in blast biotrophic interfacial complexes in compatible interactions, resemble known avirulence effectors.

  2. Vernhettes, Samantha

    1. You have accessRestricted Access
      Pausing of Golgi Bodies on Microtubules Regulates Secretion of Cellulose Synthase Complexes in Arabidopsis
      Elizabeth Faris Crowell, Volker Bischoff, Thierry Desprez, Aurélia Rolland, York-Dieter Stierhof, Karin Schumacher, Martine Gonneau, Herman Höfte, Samantha Vernhettes
      Plant Cell Apr 2009, 21 (4) 1141-1154; DOI: https://doi.org/10.1105/tpc.108.065334

      Little is known about how cellulose synthases (CESAs) reach their site of activity at the plasma membrane. Here, intracellular trafficking of CESA3 was investigated using live-cell imaging and electron microscopy. CESA3 secretion is accompanied by pausing of Golgi bodies on microtubules, and CESA3 is internalized in compartments whose movement depends on cortical microtubule array dynamics.

  3. Voisin, Derry

    1. You have accessRestricted Access
      Misexpression of FATTY ACID ELONGATION1 in the Arabidopsis Epidermis Induces Cell Death and Suggests a Critical Role for Phospholipase A2 in This Process
      José J. Reina-Pinto, Derry Voisin, Sergey Kurdyukov, Andrea Faust, Richard P. Haslam, Louise V. Michaelson, Nadia Efremova, Benni Franke, Lukas Schreiber, Johnathan A. Napier, Alexander Yephremov
      Plant Cell Apr 2009, 21 (4) 1252-1272; DOI: https://doi.org/10.1105/tpc.109.065565

      In this work, expression of a fatty acid elongase in the epidermis results in glabrous plants because newly initiated trichomes undergo rapid cell death. Chemical genetic screens identify cell death inhibitors that restore cell differentiation program.

W

  1. Walling, Linda L.

    1. You have accessRestricted Access
      Leucine Aminopeptidase Regulates Defense and Wound Signaling in Tomato Downstream of Jasmonic Acid
      Jonathan H. Fowler, Javier Narváez-Vásquez, Dale N. Aromdee, Véronique Pautot, Frances M. Holzer, Linda L. Walling
      Plant Cell Apr 2009, 21 (4) 1239-1251; DOI: https://doi.org/10.1105/tpc.108.065029

      This work examines the role of the late wound-response gene Leucine aminopeptidase A (LapA) in herbivory and wound-induced gene expression. Examination of silenced and overexpressing lines indicates that LAP-A promotes defense responses downstream of jasmonic acid.

  2. Wang, Peng

    1. Open Access
      GLK Transcription Factors Coordinate Expression of the Photosynthetic Apparatus in Arabidopsis
      Mark T. Waters, Peng Wang, Muris Korkaric, Richard G. Capper, Nigel J. Saunders, Jane A. Langdale
      Plant Cell Apr 2009, 21 (4) 1109-1128; DOI: https://doi.org/10.1105/tpc.108.065250

      GOLDEN2-LIKE (GLK) transcription factors are required for normal chloroplast development in several land plants. This study shows that GLK proteins synchronously upregulate genes relating to light harvesting and chlorophyll biosynthesis via direct interaction with promoter sequences. GLK activity most likely optimizes photosynthesis by coordinating responses to variable environmental conditions.

  3. Wang, Xiangfeng

    1. You have accessRestricted Access
      Genome-Wide and Organ-Specific Landscapes of Epigenetic Modifications and Their Relationships to mRNA and Small RNA Transcriptomes in Maize
      Xiangfeng Wang, Axel A. Elling, Xueyong Li, Ning Li, Zhiyu Peng, Guangming He, Hui Sun, Yijun Qi, X. Shirley Liu, Xing Wang Deng
      Plant Cell Apr 2009, 21 (4) 1053-1069; DOI: https://doi.org/10.1105/tpc.109.065714

      This genome-wide survey shows that epigenetic patterns differ significantly between protein-coding genes and transposable elements in maize. It is found that activating histone modifications co-occur, but the repressive marks H3K27me3 and DNA methylation exclude each other. Evidence is provided that changing mop1 transcript levels might lead to a tissue-specific shift of small RNA populations.

  4. Waters, Mark T.

    1. Open Access
      GLK Transcription Factors Coordinate Expression of the Photosynthetic Apparatus in Arabidopsis
      Mark T. Waters, Peng Wang, Muris Korkaric, Richard G. Capper, Nigel J. Saunders, Jane A. Langdale
      Plant Cell Apr 2009, 21 (4) 1109-1128; DOI: https://doi.org/10.1105/tpc.108.065250

      GOLDEN2-LIKE (GLK) transcription factors are required for normal chloroplast development in several land plants. This study shows that GLK proteins synchronously upregulate genes relating to light harvesting and chlorophyll biosynthesis via direct interaction with promoter sequences. GLK activity most likely optimizes photosynthesis by coordinating responses to variable environmental conditions.

Y

  1. Yamaguchi, Masatoshi

    1. You have accessRestricted Access
      Identifying New Components Participating in the Secondary Cell Wall Formation of Vessel Elements in Zinnia and Arabidopsis
      Satoshi Endo, Edouard Pesquet, Masatoshi Yamaguchi, Gen Tashiro, Mayuko Sato, Kiminori Toyooka, Nobuyuki Nishikubo, Makiko Udagawa-Motose, Minoru Kubo, Hiroo Fukuda, Taku Demura
      Plant Cell Apr 2009, 21 (4) 1155-1165; DOI: https://doi.org/10.1105/tpc.108.059154

      This study uses an RNAi screen in Zinnia to identify two new components, Tracheary Element Differentiation-Related6 (TED6) and TED7, which contribute to cell wall biosynthesis during xylem vessel formation. The authors study TED6 and TED7 functions and interactions in Arabidopsis plants and Zinnia cultured cells.

  2. Yamashita, Shun-ichi

    1. You have accessRestricted Access
      Atg26-Mediated Pexophagy Is Required for Host Invasion by the Plant Pathogenic Fungus Colletotrichum orbiculare
      Makoto Asakura, Sachiko Ninomiya, Miki Sugimoto, Masahide Oku, Shun-ichi Yamashita, Tetsuro Okuno, Yasuyoshi Sakai, Yoshitaka Takano
      Plant Cell Apr 2009, 21 (4) 1291-1304; DOI: https://doi.org/10.1105/tpc.108.060996

      For plant infection, the cucumber anthracnose fungus requires Atg26, a glucosyl transferase involved in pexophagy, the selective degradation of peroxisomes. Appressoria of an atg26 mutant fail to develop invasion hyphae and show defective pexophagy. Domain analysis of Atg26 suggests that both its phosphoinositide binding domain and catalytic domain are required for pexophagy and pathogenicity.

  3. Yeats, Trevor H.

    1. Open Access
      Arabidopsis LTPG Is a Glycosylphosphatidylinositol-Anchored Lipid Transfer Protein Required for Export of Lipids to the Plant Surface
      Allan DeBono, Trevor H. Yeats, Jocelyn K.C. Rose, David Bird, Reinhard Jetter, Ljerka Kunst, Lacey Samuels
      Plant Cell Apr 2009, 21 (4) 1230-1238; DOI: https://doi.org/10.1105/tpc.108.064451

      It has long been hypothesized that extracellular transfer of lipids across the epidermal cell wall to the waxy cuticle would require lipid transfer proteins (LTPs). An LTP with a GPI-anchor, LTPG, is required for export of wax to the cuticle in the stems of Arabidopsis. LTPG is primarily localized to the plasma membrane, and recombinant LTPG displays binding affinity for a lipophilic analog.

  4. Yephremov, Alexander

    1. You have accessRestricted Access
      Misexpression of FATTY ACID ELONGATION1 in the Arabidopsis Epidermis Induces Cell Death and Suggests a Critical Role for Phospholipase A2 in This Process
      José J. Reina-Pinto, Derry Voisin, Sergey Kurdyukov, Andrea Faust, Richard P. Haslam, Louise V. Michaelson, Nadia Efremova, Benni Franke, Lukas Schreiber, Johnathan A. Napier, Alexander Yephremov
      Plant Cell Apr 2009, 21 (4) 1252-1272; DOI: https://doi.org/10.1105/tpc.109.065565

      In this work, expression of a fatty acid elongase in the epidermis results in glabrous plants because newly initiated trichomes undergo rapid cell death. Chemical genetic screens identify cell death inhibitors that restore cell differentiation program.

Z

  1. Zeng, C.J. Tracy

    1. You have accessRestricted Access
      The WD40 Repeat Protein NEDD1 Functions in Microtubule Organization during Cell Division in Arabidopsis thaliana
      C.J. Tracy Zeng, Y.-R. Julie Lee, Bo Liu
      Plant Cell Apr 2009, 21 (4) 1129-1140; DOI: https://doi.org/10.1105/tpc.109.065953

      Higher plant cells organize microtubules in the absence of a structurally defined microtubule-organizing center. This article reports that the WD40 repeat protein NEDD1 appears preferentially toward the minus ends of microtubules and plays a critical role in microtubule organization during cell division in Arabidopsis thaliana.

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The Plant Cell Online: 21 (4)
The Plant Cell
Vol. 21, Issue 4
April 2009
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