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Rice blast resistance-inducing mechanisms via effector recognition by NLR immune receptors.

Research Project

Project/Area Number 18K05657
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 39040:Plant protection science-related
Research InstitutionTokyo University of Agriculture

Principal Investigator

SAITOH Hiromasa  東京農業大学, 生命科学部, 教授 (20414336)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsイネいもち病 / 細胞内免疫受容体 / 抵抗性遺伝子 / NLRs / エフェクター / ID / HMA / AVR / エフェクタータンパク質 / NLR受容体 / 免疫反応 / イネいもち病菌 / AVR-Pik / Pik-1 / HMA領域 / OsHIPP19 / NLRペア / Nicotiana benthamiana / 過敏感細胞死 / 植物免疫反応 / P-loop / MHDモチーフ / Magnaporthe oryzae / タンパク質-タンパク質相互作用 / NLR / integrated domain / 植物免疫 / 宿主-病原体相互作用 / NLRタンパク質
Outline of Final Research Achievements

Unconventional integrated domains in plant intracellular immune receptors of the nucleotide-binding leucine-rich repeat (NLRs) type can directly bind translocated effector proteins from pathogens and thereby initiate an immune response. The rice immune receptor pairs Pik-1/Pik-2 and RGA5/RGA4 both use integrated heavy metal-associated (HMA) domains to bind the effectors AVR-Pik and AVR-Pia, respectively, from rice blast fungal pathogen. Here, using plant cell death and pathogenicity assays and protein-protein interaction analyses, we show that the rice NLR pair Pikp-1/Pikp-2 triggers an immune response leading to partial disease resistance toward the “mis-matched” effector AVR-Pia in planta and that the Pikp-HMA domain binds AVR-Pia in vitro. The results of our work indicate that a single NLR immune receptor can bind multiple pathogen effectors via an integrated domain, insights that may enable engineering plant immune receptors with extended disease resistance profiles.

Academic Significance and Societal Importance of the Research Achievements

植物耐病性研究において、宿主NLRによる病原菌AVRエフェクターの認識は最も重要な研究課題の一つである。以前に研究代表者らは、病原菌AVRが植物NLRに組み込まれている特殊な領域(ID)に直接結合することを示し、AVR/NLR複合体結晶構造を世界で初めて明らかにした。本研究では、一つのNLRがIDを介して複数のエフェクターを認識することを見出し、それにより植物NLRのIDと病原体エフェクター相互作用の適応性が示唆された。この成果は多様なエフェクターを認識できる免疫受容体の人工設計の可能性を示すものであり、将来的に植物免疫受容体の機能の理解や病害抵抗性エンジニアリングへの展望を開くものと考える。

Report

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

    (14 results)

All 2021 2020 2019 2018 Other

All Int'l Joint Research (3 results) Journal Article (7 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 6 results,  Open Access: 7 results) Presentation (3 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results) Book (1 results)

  • [Int'l Joint Research] John Innes Centre/The Sainsbury Laboratory(英国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] John Innes Centre/The Sainsbury Laboratory(英国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] John Innes Centre/The Sainsbury Laboratory(英国)

    • Related Report
      2018 Research-status Report
  • [Journal Article] Multiple variants of the fungal effector AVR-Pik bind the HMA domain of the rice protein OsHIPP19, providing a foundation to engineer plant defense2021

    • Author(s)
      Maidment Josephine H.R.、Franceschetti Marina、Maqbool Abbas、Saitoh Hiromasa、Jantasuriyarat Chatchawan、Kamoun Sophien、Terauchi Ryohei、Banfield Mark J.
    • Journal Title

      Journal of Biological Chemistry

      Volume: 296 Pages: 100371-100371

    • DOI

      10.1016/j.jbc.2021.100371

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The rice NLR pair Pikp-1/Pikp-2 initiates cell death through receptor cooperation rather than negative regulation2020

    • Author(s)
      Zdrzaek Rafal、Kamoun Sophien、Terauchi Ryohei、Saitoh Hiromasa、Banfield Mark J.
    • Journal Title

      PLOS ONE

      Volume: 15 Issue: 9 Pages: 1-10

    • DOI

      10.1371/journal.pone.0238616

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] RNA-Seq of in plants-expressed Magnaporthe oryzae genes identifies MoSVP as a highly expressed gene required for pathogenicity at the initial stage of infection2019

    • Author(s)
      Shimizu, M., Nakano, Y., Hirabuchi, A., Yoshino, K., Kobayashi, M., Yamamoto, K., Terauchi, R., Saitoh, H.
    • Journal Title

      Molecular Plant Pathology

      Volume: 20 Issue: 12 Pages: 1682-1695

    • DOI

      10.1111/mpp.12869

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cross-reactivity of a rice NLR immune receptor to distinct effectors from the rice blast pathogen Magnaporthe oryzae provides partial disease resistance2019

    • Author(s)
      Varden, F.A., Saitoh, H., Yoshino, K., Franceschetti, M., Kamoun, S., Terauchi, R., Banfield, M.J.
    • Journal Title

      Journal of Biological Chemistry

      Volume: 294 Issue: 35 Pages: 13006-13016

    • DOI

      10.1074/jbc.ra119.007730

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Cross-reactivity of a rice NLR immune receptor to distinct effectors from the blast pathogen leads to partial disease resistance2019

    • Author(s)
      Varden, F.A., Saitoh, H., Yoshino, K., Franceschetti, M., Kamoun, S., Terauchi, R., Banfield, M.J.
    • Journal Title

      bioRxiv

      Volume: 530675 Pages: 1-19

    • DOI

      10.1101/530675

    • Related Report
      2018 Research-status Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Polymorphic residues in rice NLRs expand binding and response to effectors of the blast pathogen2018

    • Author(s)
      De la Concepcion, J.C., Franceschetti, M., Maqbool, A., Saitoh, H., Terauchi, R., Kamoun, S., Banfield, M.J.
    • Journal Title

      Nature Plants

      Volume: 4 Issue: 8 Pages: 576-585

    • DOI

      10.1038/s41477-018-0194-x

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Lessons in Effector and NLR Biology of Plant-Microbe Systems2018

    • Author(s)
      Bialas Aleksandra、Zess Erin K.、De la Concepcion Juan Carlos、中略 Fujisaki Koki、Saitoh Hiromasa、Terauchi Ryohei、Banfield Mark J.、Kamoun Sophien
    • Journal Title

      Molecular Plant-Microbe Interactions

      Volume: 31 Issue: 1 Pages: 34-45

    • DOI

      10.1094/mpmi-08-17-0196-fi

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] RNA-Seq of in planta-expressed Magnaporthe oryzae genes identifies MoSVP as a highly expressed gene required for pathogenicity at the initial stage of infection2020

    • Author(s)
      Hiromasa Saitoh
    • Organizer
      The 6th International Conference on Agricultural and Biological Sciences (ABS 2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] イネいもち病菌感染組織のRNA-seq解析によって同定された新奇病原性遺伝子MoSVP2019

    • Author(s)
      清水元樹、平渕亜紀子、小林光智衣、山本紘輔、寺内良平、齋藤宏昌
    • Organizer
      令和2年度日本植物病理学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] エフェクター分泌によるいもち病菌の感染および抵抗性誘導機構2019

    • Author(s)
      齋藤宏昌
    • Organizer
      第3回 植物病理を紡ぐ会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Book] Applied Plant Biotechnology for Improving Resistance to Biotic Stress2019

    • Author(s)
      Terauchi, R., Fujisaki, K., Shimizu, M., Oikawa, K., Takeda, T., Takagi, H., Abe, A., Okuyama, Y., Yoshida, K., Saitoh, H.
    • Total Pages
      355
    • Publisher
      Academic Press
    • ISBN
      9780128160305
    • Related Report
      2019 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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