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Identification and functional analysis of secondary metabolites contributing to pathogenicity of phytopathogenic fungi

Research Project

Project/Area Number 20K15500
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 38060:Applied molecular and cellular biology-related
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Kumakura Naoyoshi  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 (50815438)

Project Period (FY) 2020-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords二次代謝物 / 植物病原糸状菌 / 炭疽病菌 / イネいもち病菌 / ポリケタイド合成酵素
Outline of Research at the Start

植物病原糸状菌は植物への感染時に多数の二次代謝物生合成遺伝子の発現を上昇させることから二次代謝物を用いて感染を成立させることが予測されている。これまでに、申請者は新たに開発した多重変異体作成技術を駆使し、ウリ類炭疽病菌の病原性に寄与する二次代謝物生合成酵素遺伝子を同定している。本研究ではこれらの二次代謝生合成酵素により合成される二次代謝物を同定し、その宿主植物への作用機序を解明する。

Outline of Final Research Achievements

Phytopathogenic fungi are predicted to use secondary metabolites (SMs) to establish infection since they up-regulate the expression of a number of genes encoding SM biosynthetic enzymes during the infection of plants. However, SMs synthesized by phytopathogenic fungi during infection and their actions have been largely unknown except in a few cases. In this study, we identified new secondary metabolite biosynthetic enzyme genes that contribute to pathogenicity in the phytopathogenic fungi, Magnaporthe oryzae and Colletotrichum spp.. Identification of SMs synthesized by these genes and their functions will provide insights into molecular mechanisms of infection by phytopathogenic fungi.

Academic Significance and Societal Importance of the Research Achievements

植物病害の原因の約八割を占めると推定される植物病原糸状菌対策は食料安全保障を確保する上で重要な課題である。本研究では植物病原糸状菌感染の分子メカニズムを明らかにする基礎研究を通じて、病害対策に貢献することを目的とした。これまでに作物被害額の大きなイネいもち病菌や炭疽病菌に保存され、感染に必須な二次代謝物生合成遺伝子を同定した。本遺伝子の生産物を同定しその機能を解明すれば、感染の未知の分子メカニズムを明らかにすることができる。さらに同定した遺伝子を標的とした阻害剤を開発すれば、感染のみを阻害する殺菌剤ではない低環境負荷の農薬開発に貢献することがができる。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (13 results)

All 2021 Other

All Int'l Joint Research (1 results) Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 4 results) Presentation (7 results) (of which Invited: 1 results)

  • [Int'l Joint Research] INRAE(フランス)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] The Conserved Colletotrichum spp. Effector Candidate CEC3 Induces Nuclear Expansion and Cell Death in Plants2021

    • Author(s)
      Tsushima Ayako、Narusaka Mari、Gan Pamela、Kumakura Naoyoshi、Hiroyama Ryoko、Kato Naoki、Takahashi Shunji、Takano Yoshitaka、Narusaka Yoshihiro、Shirasu Ken
    • Journal Title

      Frontiers in Microbiology

      Volume: 12

    • DOI

      10.3389/fmicb.2021.682155

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Guanosine-specific single-stranded ribonuclease effectors of a phytopathogenic fungus potentiate host immune responses2021

    • Author(s)
      Kumakura Naoyoshi、Singkaravanit-Ogawa Suthitar、Gan Pamela、Tsushima Ayako、Ishihama Nobuaki、Watanabe Shunsuke、Seo Mitsunori、Iwasaki Shintaro、Narusaka Mari、Narusaka Yoshihiro、Takano Yoshitaka、Shirasu Ken
    • Journal Title

      bioRxiv

      Volume: -

    • DOI

      10.1101/2021.10.13.464185

    • Related Report
      2021 Annual Research Report
    • Open Access
  • [Journal Article] Telomeres and a repeat‐rich chromosome encode effector gene clusters in plant pathogenicColletotrichumfungi2021

    • Author(s)
      Gan Pamela、Hiroyama Ryoko、Tsushima Ayako、Masuda Sachiko、Shibata Arisa、Ueno Akiko、Kumakura Naoyoshi、Narusaka Mari、Hoat Trinh Xuan、Narusaka Yoshihiro、Takano Yoshitaka、Shirasu Ken
    • Journal Title

      Environmental Microbiology

      Volume: - Issue: 10 Pages: 6004-6018

    • DOI

      10.1111/1462-2920.15490

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Comparative transient expression analyses on two conserved effectors of Colletotrichum orbiculare reveal their distinct cell death‐inducing activities between Nicotiana benthamiana and melon2021

    • Author(s)
      Chen Jinlian、Inoue Yoshihiro、Kumakura Naoyoshi、Mise Kazuyuki、Shirasu Ken、Takano Yoshitaka
    • Journal Title

      Molecular Plant Pathology

      Volume: - Issue: 8 Pages: 1006-1013

    • DOI

      10.1111/mpp.13078

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Conserved Colletotrichum spp. Effector CEC3 Induces Nuclear Expansion and Cell Death in Plants2021

    • Author(s)
      Tsushima Ayako、Narusaka Mari、Gan Pamela、Kumakura Naoyoshi、Hiroyama Ryoko、Kato Naoki、Takahashi Shunji、Takano Yoshitaka、Narusaka Yoshihiro、Shirasu Ken
    • Journal Title

      biorxiv

      Volume: -

    • Related Report
      2020 Research-status Report
  • [Presentation] Identification of secondary metabolite synthesis genes involved in virulence of Colletotrichum fungi using a multiplex gene disruption system2021

    • Author(s)
      Naoyoshi Kumakura
    • Organizer
      Seminar at BIOGER in INRAE
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Guanosine-specific single-stranded ribonuclease effectors of a phytopathogenic fungus potentiate host immune responses2021

    • Author(s)
      Naoyoshi Kumakura, Suthitar Singkaravanit-Ogawa, Pamela Gan,Ayako Tsushima, Nobuaki Ishihama, Shunsuke Watanabe, Mitsunori Seo, Shintaro Iwasaki, Mari Narusaka, Yoshihiro Narusaka, Yoshitaka Takano, Ken Shirasu
    • Organizer
      第63回日本植物生理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Exploration of virulence factors required for the necrotrophic phase of phytopathogenic fungus, Colletotrichum orbiculare2021

    • Author(s)
      Katsuma Yonehara, Naoyoshi Kumakura, Pamela Gan, Ken Shirasu
    • Organizer
      第63回日本植物生理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Rocaglateを生合成するアグライア属植物に寄生する糸状菌は変異型eIF4Aを利用して生存する2021

    • Author(s)
      熊倉直祐、Mingming Chen、Ryan Muller、七野悠一、西本まどか、水戸麻理、Pamela Gan、Nicholas T. Ingolia、白須賢、伊藤拓宏、岩崎信太郎
    • Organizer
      令和4年度日本植物病理学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ウリ類炭疽病菌感染における殺生段階成立に必要な病原性因子の探索2021

    • Author(s)
      米原克磨、熊倉直祐、Pamela Gan、白須賢
    • Organizer
      令和4年度日本植物病理学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 植物病原糸状菌における病原性に寄与する二次代謝物生合成酵素遺伝子の多重遺伝子破壊法を用いた同定2021

    • Author(s)
      熊倉直祐, 米原克磨, Pamela Gan, 石濱伸明, 白須賢
    • Organizer
      第62回日本植物生理学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] ウリ類炭疽病菌およびアブラナ科炭疽病菌の二次代謝物生合成酵素遺伝子PKS13は宿主植物葉への侵入に必要である2021

    • Author(s)
      熊倉直祐, Pamela Gan, 米原克磨, 白須賢
    • Organizer
      令和3年度日本植物病理学会大会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2023-01-30  

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