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Mechanism orchestrated by the transcription factor GL2 for functional differentiation of plant epidermal cells

Research Project

Project/Area Number 16H04804
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Plant molecular biology/Plant physiology
Research InstitutionKyoto University

Principal Investigator

Aoyama Takashi  京都大学, 化学研究所, 教授 (80202498)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2019: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2018: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2017: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2016: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Keywords植物細胞分化 / 表皮細胞 / 転写制御ネットワーク / 脂質シグナル / 細胞内局在性 / 根毛 / オーキシン / 細胞分化 / 転写制御 / 細胞内シグナル伝達 / 細胞形態形成 / 形態形成 / 植物ホルモン
Outline of Final Research Achievements

The Arabidopsis transcription factor GL2 acts most downstream in a transcriptional network that is implicated commonly in plant epidermal cell differentiation. We tried to elucidate regulatory roles of further downstream factors from GL2 in root hair cell differentiation. As the result, the lipid metabolizing enzyme PLDζ1, the gene of which is a GL2 direct target, localized to trans-Golgi network in a manner dependent of its N-terminal region. In addition, the transcription factor LRL1, the gene of which is also a GL2 direct target, recognizes genes encoding regulatory factors of Rho GTPase. These suggest that various intracellular signaling systems function further downstream from GL2 for root hair cell differentiation.

Academic Significance and Societal Importance of the Research Achievements

根の表皮の根毛細胞や葉の表皮のトライコームなど、植物表皮細胞には形態や機能において他から明確に分化したものが多く見られる。それらは詳細な観察が容易であることなどから、植物細胞分化の研究対象としてこれまで集中的に研究されてきた。それ故、GL2下流で働く制御因子の役割を明らかにすることは植物細胞分化研究の最先端の知見を得ることを意味する。また、根毛は根の固定、水分や栄養素の吸収、土壌微生物との相互作用などにおいて中心的な役割を担うことが知られており、その分化制御機構を明らかにすることは様々な植物における有用品種の開発につながる。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (20 results)

All 2020 2019 2018 2017 2016 Other

All Int'l Joint Research (4 results) Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (12 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Int'l Joint Research] MRC Laboratory of Molecular Biology(英国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Peking University(中国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Peking University(中国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] 北京大学(中国)

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Arabidopsis PCaP2 modulates the phosphatidylinositol 4,5-bisphosphate signal on the plasma membrane and attenuates root hair elongation2019

    • Author(s)
      Kato Mariko、Tsuge Tomohiko、Maeshima Masayoshi、Aoyama Takashi
    • Journal Title

      The Plant Journal

      Volume: in press Issue: 4 Pages: 610-625

    • DOI

      10.1111/tpj.14226

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] PtdIns(3,5)P2 mediates root hair shank hardening in Arabidopsis.2018

    • Author(s)
      Hirano T, Konno H, Takeda S, Dolan L, Kato M, Aoyama T, Higaki T, Takigawa-Imamura H, Sato MH.
    • Journal Title

      Nat Plants.

      Volume: 4 Issue: 11 Pages: 888-897

    • DOI

      10.1038/s41477-018-0277-8

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] SRPP, a cell-wall protein is involved in development and protection of seeds and root hairs in Arabidopsis thaliana2017

    • Author(s)
      Natsuki Tanaka, Hiroshi Uno, Shohei Okuda, Shizuka Gunji, Ali Ferjani, Takashi Aoyama, Masayoshi Maeshima
    • Journal Title

      Plant Cell Physiology

      Volume: 58 Pages: 760-769

    • DOI

      10.1093/pcp/pcx008

    • NAID

      120006343667

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] RNA binding proteins RZ-1B and RZ-1C play critical roles in regulating pre-mRNA splicing and gene expression during development in Arabidopsis.2016

    • Author(s)
      Wu Z, Zhu D, Lin X, Miao J, Gu L, Deng X, Yang Q, Sun K, Zhu D, Cao X, Tsuge T, Dean C, Aoyama T, Gu H, Qu LJ.
    • Journal Title

      Plant Cell

      Volume: 28 Issue: 1 Pages: 55-73

    • DOI

      10.1105/tpc.15.00949

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] シロイヌナズナの根毛形成に関わる転写因子 LRL1の機能解析2020

    • Author(s)
      山田鴻,加藤真理子,柘植知彦,和田拓治,冨永るみ,Li-Jia Qu,青山卓史
    • Organizer
      第61回日本植物生理学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Arabidopsis Phospholipase Dζ1 and ζ2 Target Different Intracellular via Their N-terminal Domains.2019

    • Author(s)
      Ryota Shimamura, Yukimi Y. Taniguchi, Yohei Ohashi, Mariko Kato, Tomohiko Tsuge, Takashi Aoyama
    • Organizer
      The 18th International Workshop on Plant Membrane Biology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] PtdIsn(4,5)P2産生酵素をコードするPIP5K遺伝子は花粉の発達過程において機能する2019

    • Author(s)
      加藤真理子、亘真知子、藤原崇志、青山卓史
    • Organizer
      日本植物生理学会・2019年度年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] シロイヌナズナの根毛形成における平面内極性確立機構の解明2019

    • Author(s)
      岸本太地、加藤真理子、柘植知彦、青山卓史
    • Organizer
      日本植物生理学会・2019年度年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] シロイヌナズナにおけるPIP5K7とPIP5K8の機能解析2019

    • Author(s)
      黒田凌、加藤真理子、柘植知彦、青山卓史
    • Organizer
      日本植物生理学会・2019年度年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Genetic analysis of type B PIP5Ks in plant cell morphogenesis2018

    • Author(s)
      Machiko Watari, Mariko Kato, Tomohiko Tsuge, Takashi Aoyama
    • Organizer
      The 29th International Conference of Arabidopsis Research
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Function of Arabidopsis type-B phosphatidylinositol phosphate 5-kinase genes in plant growth and development2018

    • Author(s)
      Mariko Kato, Machiko Watari, Ryo Kuroda, Taichi Kishimoto, Hiroaki Kusano, Tomohiko Tsuge, Blanc-Mathieu Romain, Hiroyuki Ogata, Takashi Aoyama
    • Organizer
      The 23rd International Symposium on Plant Lipids
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Biological function of type-B phosphatidylinositol phosphate 5-kinase genes of Arabidopsis thaliana.2017

    • Author(s)
      Takashi Aoyama, Mariko Kato, Yukika Wada, Machiko Watari, Tomohiko Tsuge, Blanc-Mathieu Romain, Hiroyuki Ogata, Hiroaki Kusano
    • Organizer
      日本植物生理学会・2017年度年会
    • Place of Presentation
      鹿児島大学
    • Year and Date
      2017-03-16
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] シロイヌナズナPCaP2はPI(4,5)P2シグナルを調節することにより根毛の伸長を減衰する2017

    • Author(s)
      加藤真理子、柘植知彦、前島正義、青山卓史
    • Organizer
      日本植物生理学会・2018年度年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] シロイヌナズナにおけるPIP5K7とPIP5K8の機能解析2017

    • Author(s)
      黒田凌、加藤真理子、柘植知彦、青山卓史
    • Organizer
      日本植物生理学会・2018年度年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] BタイプPIP5Kの遺伝学的解析2017

    • Author(s)
      亘真智子、加藤真理子、柘植知彦、青山卓史
    • Organizer
      日本植物生理学会・2018年度年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] シロイヌナズナPLDz1およびPLDz2の細胞内局在2017

    • Author(s)
      島村亮太、谷口(山本)幸美、加藤真理子、柘植知彦、青山卓史
    • Organizer
      日本植物生理学会・2018年度年会
    • Related Report
      2017 Annual Research Report

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Published: 2016-04-21   Modified: 2021-02-19  

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