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Studies on phosphoinositide signal involved in root hair elongation

Research Project

Project/Area Number 17K15238
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Plant nutrition/Soil science
Research InstitutionKyoto University

Principal Investigator

KATO Mariko  京都大学, 化学研究所, 助教 (90736646)

Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords植物細胞形態形成 / ホスホイノシチド / シグナル伝達 / リン脂質シグナル / 細胞形態形成 / 脂質 / 植物
Outline of Final Research Achievements

Root hairs is important for water and nutrient uptake, anchoring plants to soil, microbe interactions. To reveal the mechanisms in which involved in root hair elongation, we focused on the function of PCaP2 via PI(4,5)P2-binding activity on the plasma membrane, and investigated its role in root hair elongation. Resulting data revealed that PCaP2 functions as a negative modulator of the PI(4,5)P2 signal on the plasma membrane and attenuates root hair tip growth, and exsist the mechanisms in which attenuate PI(4,5)P2 signal.

Academic Significance and Societal Importance of the Research Achievements

根毛をより長く伸長させることにより根毛の表面積を拡張させることができれば任意のタンパク質などを量的に多く発現させることも可能となることから、伸長促進機構を明らかにすることは重要である。本研究では根毛伸長を負に制御する機構の一端を明らかにしたが、根毛機能を強化した高機能性植物体の作出のための基礎的知見を得ることができたと考えている。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • Research Products

    (10 results)

All 2019 2018

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (8 results)

  • [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
      2018 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
  • [Presentation] Phosphatidylinositol 4-phosphate 5-kinase genes, the PtdIns(4,5)P2 producing enzyme, are responsible for pollen development in Arabidopsis.2019

    • Author(s)
      Mariko Kato、Machiko Watari、Takashi Fujiwara、Takashi Aoyama
    • Organizer
      第60回日本植物生理学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Elucidation of the mechanism by which planar polarity is established for root hair development in Arabidopsis thaliana.2019

    • Author(s)
      Taichi Kishimoto、Mariko Kato、Tomohiko Tsuge、Takashi Aoyama
    • Organizer
      第60回日本植物生理学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Functional analysis of PIP5K7 and PIP5K8 in Arabidopsis thaliana.2019

    • Author(s)
      Ryo Kuroda、Mariko Kato、Tomohiko Tsuge、Takashi Aoyama
    • Organizer
      第60回日本植物生理学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Understanding CSN-mediated regulation through its interaction with RNA processing factors.2019

    • Author(s)
      Tom Tsuge、Xiaojuan Zhang、Mika Nomoto、Marta Garcia-Leon、Naoki Takahashi、Mariko Kato、Masaaki Umeda、Vicente Rubio、Yasuomi Tada、Tsuyoshi Furumoto、Takashi Aoyama
    • Organizer
      第60回日本植物生理学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Arabidopsis PCaP2 Modulates the Phosphatidylinositol 4,5-bisphosphate Signal on the Plasma Membrane to Attenuates Root Hair Elongation2018

    • Author(s)
      Mariko Kato, Tomohiko Tsuge, Masayoshi Maeshima, Takashi Aoyama
    • Organizer
      第59回日本植物生理学会年会
    • Related Report
      2017 Research-status Report
  • [Presentation] Functional analysis of PIP5K7 and PIP5K8 in Arabidopsis thaliana2018

    • Author(s)
      Ryo Kuroda, Mariko Kato, Tomohiko Tsuge, Takashi Aoyama
    • Organizer
      第59回日本植物生理学会年会
    • Related Report
      2017 Research-status Report
  • [Presentation] Genetic analysis of type B PIP5K genes using multiple mutants2018

    • Author(s)
      Machiko Watari, Mariko Kato, Tomohiko Tsuge, Takashi Aoyama
    • Organizer
      第59回日本植物生理学会年会
    • Related Report
      2017 Research-status Report
  • [Presentation] Intracellular Localization of Arabidopsis thaliana PLDζ1 and PLDζ22018

    • Author(s)
      Ryota Shimamura, Yukimi Y. Taniguchi, Mariko Kato, Tomohiko Tsuge, Takashi Aoyama
    • Organizer
      第59回日本植物生理学会年会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2020-03-30  

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