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Regulation of nodulation by phytosterols

Research Project

Project/Area Number 18K06305
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 44030:Plant molecular biology and physiology-related
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Yamazaki Akihiro  国立研究開発法人理化学研究所, 環境資源科学研究センター, 研究員 (50752953)

Co-Investigator(Kenkyū-buntansha) 下田 宜司  国立研究開発法人農業・食品産業技術総合研究機構, 生物機能利用研究部門, 上級研究員 (80415455)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords植物生理 / 共生 / 分子生物学 / 植物微生物相互作用 / 植物―微生物相互作用 / 根粒菌 / ステロール / 根粒
Outline of Final Research Achievements

In this study, we identified PSAT as a novel regulatory factor in root nodule symbiosis (RNS), in which legume plants and symbiotic microorganisms fix atmospheric nitrogen. PSAT functions in the sterol homeostasis in Arabidopsis. We found that the function of PSAT in RNS can be uncoupled from that in the sterol homeostasis. PSAT represented a strong genetical correlation with a small subset of symbiotic genes. Together with its mysterious subcellular localization, oud data imply the existence of novel signaling cascades in RNS. The results we obtained through this study add novel information to the field of plant-microbe symbiosis to help deeper understanding of RNS in the views of genetics and molecular biology.

Academic Significance and Societal Importance of the Research Achievements

これまで報告の少ない「植物ー微生物共生における負の制御機構」について、本研究で新たな因子PSATを同定した。PSATの遺伝学的上位性や細胞内局在等の結果は未知の共生シグナル経路の存在を示唆しており、当該分野に新たな知見を加えることができた。根粒共生の分子生物学的な理解をより深めることで、根粒共生能のマメ科以外の植物への賦与といった、SDGsに直結する課題解決への礎として、今後の研究への応用、発展が期待される。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (9 results)

All 2021 2020 2019 2018 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 3 results) Remarks (1 results)

  • [Journal Article] SNARE Proteins LjVAMP72a and LjVAMP72b Are Required for Root Symbiosis and Root Hair Formation in Lotus japonicus2019

    • Author(s)
      Sogawa Aoi、Yamazaki Akihiro、Yamasaki Hiroki、Komi Misa、Manabe Tomomi、Tajima Shigeyuki、Hayashi Makoto、Nomura Mika
    • Journal Title

      Frontiers in Plant Science

      Volume: 9 Pages: 1992-1992

    • DOI

      10.3389/fpls.2018.01992

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Sterol acyltransferase is involved in the regulation of nodulation2021

    • Author(s)
      Akihiro Yamazaki
    • Organizer
      14th European Nitrogen Fixation Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sterol acyltransferase is involved in the regulation of root nodule symbiosis2021

    • Author(s)
      山崎 明広
    • Organizer
      第62回日本植物生理学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] ステロールの恒常性に寄与するAcyltransferaseによる根粒共生の制御2020

    • Author(s)
      山崎 明広
    • Organizer
      第60回日本植物生理学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] CAMTA1: a novel regulator of nodulation2019

    • Author(s)
      Akihiro, Yamazaki
    • Organizer
      2019 IS-MPMI XVIII Congress
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] A novel regulator of root nodule symbiosis2018

    • Author(s)
      山崎 明広
    • Organizer
      第28回 植物微生物研究会 研究交流会
    • Related Report
      2018 Research-status Report
  • [Presentation] A calmodulin-binding transcriptional activator controls nodule organogenesis2018

    • Author(s)
      Akihiro Yamazaki
    • Organizer
      13th European Nitrogen Fixation Conference
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] A novel regulation of nodulation by a calmodulin-binding transcriptional activator2018

    • Author(s)
      山崎 明広
    • Organizer
      第60回 日本植物生理学会年会
    • Related Report
      2018 Research-status Report
  • [Remarks] 理化学研究所 植物共生研究チーム

    • URL

      http://www.riken.jp/research/labs/csrs/plant_symb/

    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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