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Regulation of nuclear gene expression by jasmonate induced by chlorophyll degradation

Research Project

Project/Area Number 17K07430
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Plant molecular biology/Plant physiology
Research InstitutionHokkaido University

Principal Investigator

Ito Hisashi  北海道大学, 低温科学研究所, 助教 (50596608)

Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsクロロフィル / 老化 / ジャスモン酸 / クロロフィル分解 / シロイヌナズナ / ポプラ / 植物ホルモン / 植物 / シグナル伝達
Outline of Final Research Achievements

One of the central issues in this study is the elucidation of the relationship between chlorophyll degradation and jasmonic acid synthesis. It has been thought that plants senescence is proceeded through the action of plant hormones such as jasmonic acid, which results in the degradation of chlorophyll. However, this study showed that the degradation of chlorophyll leads to the synthesis of jasmonic acid, which induces the expression of senescence-related genes, i.e., accelerates senescence. This result suggests that chlorophyll degradation promotes senescence by plant hormones. This study demonstrates a new role for chlorophyll degradation in plants.

Academic Significance and Societal Importance of the Research Achievements

葉が黄色くなるのは、植物が枯れるときに一番目に付く特徴です。このような葉の色の変化は、光合成色素のクロロフィルが分解されることで起きます。これまで植物ホルモンが葉の老化を進めて、その結果クロロフィルが分解されて葉が黄色くなると考えれらていました。しかし本研究では、クロロフィルの分解によって植物ホルモンの合成が合成され、その結果葉の老化が進むことが示唆されました。このような観察から、クロロフィルの分解と植物ホルモンの合成が相乗的に影響しあい、葉の老化を速やかに進めていると考えられます。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (17 results)

All 2021 2020 2019 2018 Other

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 1 results) Presentation (8 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Remarks (2 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Degradation of the photosystem II core complex is independent of chlorophyll degradation mediated by Stay-Green Mg2+ dechelatase in Arabidopsis2021

    • Author(s)
      Chen Ying、Yamori Wataru、Tanaka Ayumi、Tanaka Ryouichi、Ito Hisashi
    • Journal Title

      Plant Science

      Volume: - Pages: 110902-110902

    • DOI

      10.1016/j.plantsci.2021.110902

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Jasmonate production through chlorophyll a degradation by Stay-Green in Arabidopsis thaliana2019

    • Author(s)
      Ono Kouhei、Kimura Madoka、Matsuura Hideyuki、Tanaka Ayumi、Ito Hisashi
    • Journal Title

      Journal of Plant Physiology

      Volume: 238 Pages: 53-62

    • DOI

      10.1016/j.jplph.2019.05.004

    • NAID

      120007099144

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Horizontal Transfer of Promiscuous Activity from Nonphotosynthetic Bacteria Contributed to Evolution of Chlorophyll Degradation Pathway2019

    • Author(s)
      Obata Daichi、Takabayashi Atsushi、Tanaka Ryouichi、Tanaka Ayumi、Ito Hisashi
    • Journal Title

      Molecular Biology and Evolution

      Volume: 36 Issue: 12 Pages: 2830-2841

    • DOI

      10.1093/molbev/msz193

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] In Vitro Enzymatic Activity Assays Implicate the Existence of the Chlorophyll Cycle in Chlorophyll b-Containing Cyanobacteria2019

    • Author(s)
      Lim HyunSeok、Tanaka Ayumi、Tanaka Ryouichi、Ito Hisashi
    • Journal Title

      Plant and Cell Physiology

      Volume: 60 Issue: 12 Pages: 2672-2683

    • DOI

      10.1093/pcp/pcz157

    • NAID

      120006876294

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Mg-dechelatase is involved in the formation of photosystem II but not in chlorophyll degradation in Chlamydomonas reinhardtii2019

    • Author(s)
      Chen Ying、Shimoda Yousuke、Yokono Makio、Ito Hisashi、Tanaka Ayumi
    • Journal Title

      The Plant Journal

      Volume: 97 Issue: 6 Pages: 1022-1031

    • DOI

      10.1111/tpj.14174

    • NAID

      120006803955

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Mg-dechelation of chlorophyll a by Stay-Green activates chlorophyll b degradation through expressing Non-Yellow Coloring 1 in Arabidopsis thaliana2018

    • Author(s)
      Sato Tomoaki、Shimoda Yousuke、Matsuda Kaori、Tanaka Ayumi、Ito Hisashi
    • Journal Title

      Journal of Plant Physiology

      Volume: 222 Pages: 94-102

    • DOI

      10.1016/j.jplph.2018.01.010

    • NAID

      120006803940

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 8-ビニル基還元酵素の鉄環境への適応とAcaryochloris における役割2021

    • Author(s)
      末廣晴花、田中亮一、伊藤寿
    • Organizer
      第62回日本植物生理学会(松江)
    • Related Report
      2020 Annual Research Report
  • [Presentation] シロイヌナズナにおけるグラナマージンへのクロロフィル分解酵素の局在2020

    • Author(s)
      福良光起、田中亮一、伊藤寿
    • Organizer
      第61回日本植物生理学会(大阪)
    • Related Report
      2019 Research-status Report
  • [Presentation] ポプラにおけるクロロフィル分解を介したエチレンの発生と落葉2019

    • Author(s)
      伊藤寿、荒川圭太 、田中歩
    • Organizer
      第60回日本植物生理学会
    • Related Report
      2018 Research-status Report
  • [Presentation] クロロフィル分解とジャスモン酸の関係2018

    • Author(s)
      伊藤寿、田中歩
    • Organizer
      第9回日本光合成学会
    • Related Report
      2018 Research-status Report
  • [Presentation] Analysis of Plant Mg-Dechelatase Involved in Chlorophyll Degradation2018

    • Author(s)
      Hisashi Ito
    • Organizer
      第10回 International conference on porphyrins and phthalocyanines
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] The effet of chlorophyll degradation by SGR on senescence2018

    • Author(s)
      Ying Chen, Yousuke Shimoda, Ayumi Tanaka, Hisashi Ito
    • Organizer
      第59回日本植物生理学会
    • Related Report
      2017 Research-status Report
  • [Presentation] クロロフィルaのMgを脱離する酵素SGRの触媒機構解析2018

    • Author(s)
      小畑大地、田中歩、伊藤寿
    • Organizer
      第59回日本植物生理学会
    • Related Report
      2017 Research-status Report
  • [Presentation] SGRによるクロロフィル分解が引き起こすジャスモン酸とエチレンの増加2018

    • Author(s)
      木村円香、松浦英幸、田中歩、伊藤寿
    • Organizer
      第59回日本植物生理学会
    • Related Report
      2017 Research-status Report
  • [Remarks] 北海道大学低温科学研究所 年次自己点検評価報告書 〜年報〜

    • URL

      http://www.lowtem.hokudai.ac.jp/nenpou.html

    • Related Report
      2020 Annual Research Report
  • [Remarks] 植物の老化や紅葉には,バクテリアの遺伝子が関わっていた

    • URL

      https://www.hokudai.ac.jp/news/190906_pr2.pdf

    • Related Report
      2019 Research-status Report
  • [Patent(Industrial Property Rights)] クロロフィル分解酵素阻害剤2021

    • Inventor(s)
      伊藤寿
    • Industrial Property Rights Holder
      伊藤寿
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2021-041725
    • Filing Date
      2021
    • Related Report
      2020 Annual Research Report

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Published: 2017-04-28   Modified: 2022-01-27  

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