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Membrane-anchoring of plastid DNA involves in regulation of nucleoid morphology and plastid gene expression

Research Project

Project/Area Number 20K15819
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 44030:Plant molecular biology and physiology-related
Research InstitutionHirosaki University (2021-2023)
Kyoto University (2020)

Principal Investigator

Fujii Sho  弘前大学, 農学生命科学部, 助教 (20867717)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2023: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2022: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Keywords葉緑体 / 核様体 / 遺伝子発現 / 膜脂質 / DNA結合タンパク質 / RNAポリメラーゼ / 色素体分化 / 膜アンカータンパク質 / 転写制御 / クロマチン免疫沈降シーケンス / 次世代シーケンシング / 超高解像顕微鏡
Outline of Research at the Start

植物の色素体は器官や環境に応じてダイナミックに分化する。特に色素体が葉緑体へと分化する過程では,内膜構造の発達とともに,色素体DNA-タンパク質複合体「核様体」の構造が大きく変動し,色素体遺伝子の発現変動を引き起こすと提唱されてきた。しかし,色素体分化に伴う核様体の構造変化の分子機構や遺伝子発現との関係性の実態は謎に包まれたままである。本研究では,色素体核様体の膜アンカーポイントが色素体分化において果たす役割の解明を目指し,超高解像顕微鏡や次世代シーケンシング技術を駆使した解析を行う。本研究の成果は,植物の効率的な成長や環境適応に必要な色素体分化のしくみを解き明かすうえで重要な手がかりとなる。

Outline of Final Research Achievements

During chloroplast development, the morphology of the plastid DNA-protein complex known as nucleoids changes in parallel with the induction of photosynthesis-associated genes. To uncover the mechanism underlying these processes, we first established a protocol to analyze the genome-wide DNA-binding pattern of plastid-encoded RNA polymerases. We also investigated the involvement of thylakoid formation in plastid gene expression and roles of membranous DNA-biding protein in chloroplast development. By analyzing the gene expression patterns in thylakoid-deficient mutants, we found that synthesis of thylakoid lipids is crucial for the transcription and translation in plastids. Our results indicate that the activation of plastid-encoded RNA polymerase depends on plastid lipid synthesis. We also revealed that the DNA-binding protein in the thylakoid are required for regulation of nucleoid morphology during chloroplast development and induction of gene expression under stressful conditions.

Academic Significance and Societal Importance of the Research Achievements

植物の色素体は,器官や環境に応じて柔軟に分化することで,光合成やデンプン蓄積をはじめとする多様な代謝を担い,色素を蓄積して植物の多様ないろどりを創出する。本研究の成果は,チラコイド膜の形成や核様体の形態変化が,色素体の遺伝子発現制御に関与することを示している。植物の光合成や成長を最適化するには,色素体の遺伝子発現を適切に制御することが不可欠であるため,本研究の知見は人類が植物を食料や資源として活用する際の基礎的な情報となる。本研究で確立した色素体RNAポリメラーゼの機能をゲノムワイドに分析する方法は,任意の植物試料に適用可能であり,今後の植物学研究において広く活用されることが期待される。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (33 results)

All 2024 2023 2022 2021 2020 Other

All Int'l Joint Research (5 results) Journal Article (6 results) (of which Int'l Joint Research: 5 results,  Open Access: 5 results,  Peer Reviewed: 4 results) Presentation (22 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results)

  • [Int'l Joint Research] ミシガン大学(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] ミシガン大学(米国)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] ミシガン大学(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] アカデミアシニカ(台湾)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] ミシガン大学(米国)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Orchestration Of Photosynthesis-associated Gene Expression And Galactolipid Biosynthesis During Chloroplast Differentiation In Plants2024

    • Author(s)
      Fujii Sho、Wada Hajime、Kobayashi Koichi
    • Journal Title

      Plant And Cell Physiology

      Volume: - Issue: 6 Pages: 1014-1028

    • DOI

      10.1093/pcp/pcae049

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Transcription-directed membrane association organizes the chloroplast nucleoid structure2023

    • Author(s)
      Palomar V. Miguel、Fujii Sho、Rothi M. Hafiz、Jaksich Sarah、Coke Adriana N.、Wang Joyful、Wierzbicki Andrzej T.
    • Journal Title

      bioRxiv

      Volume: -

    • DOI

      10.1101/2023.05.12.540520

    • Related Report
      2023 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Anionic lipids facilitate membrane development and protochlorophyllide biosynthesis in etioplasts2023

    • Author(s)
      Yoshihara Akiko、Kobayashi Keiko、Nagata Noriko、Fujii Sho、Wada Hajime、Kobayashi Koichi
    • Journal Title

      Plant Physiology

      Volume: 194 Issue: 3 Pages: 1692-1704

    • DOI

      10.1093/plphys/kiad604

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] High‐resolution map of plastid‐encoded RNA polymerase binding patterns demonstrates a major role of transcription in chloroplast gene expression2022

    • Author(s)
      Palomar V. Miguel、Jaksich Sarah、Fujii Sho、Kucinski Jan、Wierzbicki Andrzej T.
    • Journal Title

      The Plant Journal

      Volume: 111 Issue: 4 Pages: 1139-1151

    • DOI

      10.1111/tpj.15882

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Impacts of phosphatidylglycerol on plastid gene expression and light induction of nuclear photosynthetic genes2022

    • Author(s)
      Sho Fujii, Koichi Kobayashi, Ying-Chen Lin, Yu-chi Liu, Yuki Nakamura, Hajime Wada
    • Journal Title

      Journal of Experimental Botany

      Volume: - Issue: 9 Pages: 2952-2970

    • DOI

      10.1093/jxb/erac034

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] High-resolution map of plastid encoded polymerase binding patterns demonstrates a major role of transcription in chloroplast gene expression2022

    • Author(s)
      Palomar V. Miguel、Jaksich Sarah、Fujii Sho、Kucinski Jan、Wierzbicki Andrzej T.
    • Journal Title

      bioRxiv

      Volume: -

    • DOI

      10.1101/2022.01.18.476797

    • Related Report
      2021 Research-status Report
    • Open Access / Int'l Joint Research
  • [Presentation] Plastid lipid biosynthesis facilitates light-responsive gene expression and chlorophyll biosynthesis during chloroplast biogenesis.2024

    • Author(s)
      Sho Fujii
    • Organizer
      第65回日本植物生理学会年会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] ホスファチジルグリセロールは葉緑体の遺伝子発現制御にどのように関与するのか2024

    • Author(s)
      野戸康生,小林康一,川島祐介,石川将己,藤井祥
    • Organizer
      第65回日本植物生理学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 色素体RNAポリメラーゼに結合するチラコイド膜局在タンパク質NIPが遺伝子発現に与える影響2023

    • Author(s)
      黒滝悠志、藤井祥
    • Organizer
      日本植物学会第87回大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 葉緑体DNA結合タンパク質MFP1を中心とした核様体の膜アンカーポイント構造の解明2023

    • Author(s)
      野戸康生,川島祐介,石川将己,西村芳樹,藤井祥
    • Organizer
      日本植物学会第87回大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 膜脂質合成が引き起こす色素体の遺伝子発現変動2023

    • Author(s)
      藤井祥,中村友輝,和田元,小林康一
    • Organizer
      日本植物学会第87回大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Roles of plastid phospholipid PG and sulfolipid SQDG in etioplast development and de-etiolation of Arabidopsis thaliana.2023

    • Author(s)
      Akiko Yoshihara, Keiko Kobayashi, Noriko Nagata, Hajime Wada, Sho Fujii, Koichi Kobayashi
    • Organizer
      15th International Conference on Tetrapyrrole Photoreceptors in Photosynthetic Organisms
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Galactolipid biosynthesis involves in GUN1-mediated regulation of photosynthesis-associated genes.2023

    • Author(s)
      Sho Fujii, Hajime Wada, Koich Kobayashi
    • Organizer
      15th International Conference on Tetrapyrrole Photoreceptors in Photosynthetic Organisms
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] lastid anionic lipids PG and SQDG are important for etioplast development and de-etiolation of Arabidopsis thaliana.2023

    • Author(s)
      Akiko Yoshihara, Keiko Kobayashi, Noriko Nagata, Hajime Wada, Sho Fujii, Koichi Kobayashi
    • Organizer
      9th Asian-Oceanian Symposium on Plant Lipids
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 葉緑体分化過程における光依存的な遺伝子発現とクロロフィル合成にはチラコイド膜脂質の合成が不可欠である2023

    • Author(s)
      藤井祥,野戸康生,黒滝悠志,小林康一,永田典子,中村友輝,増田建,和田元
    • Organizer
      東北植物学会第13回大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 色素体の遺伝子発現制御におけるファージ型RNAポリメラーゼ結合タンパク質NIPの役割2023

    • Author(s)
      黒滝悠志,藤井祥
    • Organizer
      東北植物学会第13回大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 葉緑体DNA結合タンパク質MFP1は遺伝子発現の制御タンパク質を膜上に集積する2023

    • Author(s)
      野戸康生,川島祐介,石川将己,Miguel Palomar,Andrzej Wierzbicki,西村芳樹,藤井祥
    • Organizer
      東北植物学会第13回大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Exploratory research on interacting factors of MFP1, a DNA-binding protein in the thylakoid membrane.2023

    • Author(s)
      野戸康生,西村芳樹,藤井祥
    • Organizer
      第64回日本植物生理学会年会
    • Related Report
      2022 Research-status Report
  • [Presentation] Galactolipids contribute to balancing two differential structures of etioplast membranes2023

    • Author(s)
      藤井 祥, 秋田 佳恵, 大目 歩果, 梶川 瑞恵, 和田 元, 永田 典子, 小林 康一
    • Organizer
      第64回日本植物生理学会年会
    • Related Report
      2022 Research-status Report
  • [Presentation] ptChIP-seq法による色素体RNAポリメラーゼPEPのゲノムワイドなDNA結合パターンの探索2022

    • Author(s)
      藤井 祥,V Miguel Palomar,Sarah Jaksich,Jan Kucinski,黒滝 悠志,野戸 康生,鹿内 利治, 西村 芳樹,Andrzej T Weirzbicki
    • Organizer
      第12回日本光合成学会年会
    • Related Report
      2022 Research-status Report
  • [Presentation] 色素体核様体の膜アンカー因子MFP1は核様体の表面積拡張と効率的な転写誘導に必要である2022

    • Author(s)
      藤井 祥,V Miguel Palomar O,Andrzej T Wierzbicki,鹿内 利治,西村 芳樹
    • Organizer
      日本植物学会第86回大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 葉緑体分化における膜脂質合成と光合成遺伝子発現の協調的な制御2022

    • Author(s)
      藤井祥,小林康一,中村友輝,和田元
    • Organizer
      第34回植物脂質シンポジウム
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 八戸伝統野菜「糠塚きゅうり」の色変化メカニズム2022

    • Author(s)
      藤井祥,辻本侑生
    • Organizer
      東北植物学会第12回大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 葉緑体DNA結合タンパク質MFP1とチラコイド膜の相互作用の解析2022

    • Author(s)
      野戸康生、藤井祥
    • Organizer
      東北植物学会第12回大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 葉緑体分化時に核様体を広げる膜アンカー因子MFP12021

    • Author(s)
      藤井祥,鹿内利治,西村芳樹
    • Organizer
      第11回日本光合成学会年会
    • Related Report
      2021 Research-status Report
  • [Presentation] 葉緑体分化時の遺伝子発現を支える核様体の膜アンカー因子MFP12021

    • Author(s)
      藤井祥,鹿内利治,西村芳樹
    • Organizer
      日本植物学会第86回大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 葉緑体分化時の核様体の分散にはMFP1 による色素体DNA の膜アンカーが必要である2021

    • Author(s)
      藤井祥,鹿内利治,西村芳樹
    • Organizer
      第62回日本植物生理学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 核様体の膜アンカーは葉緑体分化時の核様体の分散に必要である2020

    • Author(s)
      藤井祥,鹿内利治,西村芳樹
    • Organizer
      日本植物学会第84回大会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2025-01-30  

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