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How do redox-regulated systems in photosynthetic organisms work in situ?

Research Project

Project/Area Number 21H02502
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 44030:Plant molecular biology and physiology-related
Research InstitutionTokyo Institute of Technology

Principal Investigator

HISABORI TORU  東京工業大学, 国際先駆研究機構, 特任教授 (40181094)

Co-Investigator(Kenkyū-buntansha) 吉田 啓亮  東京工業大学, 科学技術創成研究院, 准教授 (40632310)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2023: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2022: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2021: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Keywordsレドックス制御 / チオレドキシン / システイン / グルタチオン / 光合成電子伝達 / 酸化因子 / ATP合成 / 光合成電子伝達系 / ATP合成酵素
Outline of Research at the Start

光合成生物は、環境の変化に対して光合成電子伝達系から供給される還元力を利用して諸酵素の酸化還元状態を制御し代謝調節を行っている。しかし、これまでin vitroの生化学的解析が生体内の酸化還元物質の影響を考慮していないことや、酸化還元状態変化以外のCysのチオール基の修飾がほとんど調べられていないことなどにより、生体内での制御の実態は未解明であった。そこで、レドックス制御系に関わるチオール基の変化を、生体内を模した条件下で調べ、レドックス制御系のin situでの働きを総合的に理解する。

Outline of Final Research Achievements

(1) Physiological Importance of the Thylakoid Redox Control System: The gene disruption of Ferredoxin-Thioredoxin Reductase (FTR), which is associated with electron transfer in the chloroplast redox control system, revealed its physiological significance. Insufficient reduction of redox-regulated target enzymes due to FTR knockdown affected in the photosynthetic electron transfer chain. (2) Oxidation Factors in Chloroplasts: It was demonstrated that oxidation factors functioning in chloroplasts exhibit targeted specificity. The oxidation factor ACHT is involved in the excess light energy dissipation system. (3) Redox regulation of Chloroplast ATP Synthase: Several strains containing mutations at the redox regulatory region of chloroplast ATP synthase were created, and the correspondence between redox responses and ATP synthesis activity regulation was elucidated. In addition, the contribution of proton motive force during the oxidation process of this enzyme was clarified.

Academic Significance and Societal Importance of the Research Achievements

光合成は地球上で唯一太陽光エネルギーを生物が利用可能な化学エネルギーに変換する、すべての生命を支える重要なエネルギー変換機構である。自然界では、光環境は時々刻々変化するが、光合成生物はこの環境変化に適応して最適な状態で光合成反応を営んでいる。この最適化の鍵を握る制御システムがレドックス制御システムであり、この制御機構を明らかにすることは、光合成の耐性強化、生産性の向上など、将来の光合成機能の改変による光合成生物の強化に重要な知見を提供するもので、エネルギー獲得や食糧増産など人類社会に貢献する研究である。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (40 results)

All 2024 2023 2022 2021

All Journal Article (12 results) (of which Peer Reviewed: 12 results,  Open Access: 12 results) Presentation (28 results) (of which Int'l Joint Research: 6 results,  Invited: 4 results)

  • [Journal Article] Overexpression of thioredoxin-like protein ACHT2 leads to negative feedback control of photosynthesis in Arabidopsis thaliana2024

    • Author(s)
      Fukushi Y., Yokochi Y., Hisabori T., Yoshida K.
    • Journal Title

      J. Plant Res.

      Volume: in press Issue: 3 Pages: 445-453

    • DOI

      10.1007/s10265-024-01519-2

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Divergent protein redox dynamics and their relationship with electron transport efficiency during photosynthesis induction2024

    • Author(s)
      Yoshida K., Hisabori T.
    • Journal Title

      Plant Cell Physiol.

      Volume: in press Issue: 5 Pages: 737-747

    • DOI

      10.1093/pcp/pcae013

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Current insights into the redox regulation network in plant chloroplasts2023

    • Author(s)
      Yoshida K., Hisabori T.
    • Journal Title

      Plant Cell Physiol.

      Volume: 64 Issue: 7 Pages: 704-715

    • DOI

      10.1093/pcp/pcad049

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Molecular bulkiness of a single amino acid in the F1 α subunit determines the robustness of cyanobacterial ATP synthase2023

    • Author(s)
      A. Machida, K. Kondo, K. Wakabayashi, K. Tanaka, T. Hisabori
    • Journal Title

      Plant and Cell Physiology

      Volume: 64 Issue: 12 Pages: 1590-1600

    • DOI

      10.1093/pcp/pcad109

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cystathionine-β-synthase X proteins negatively regulate NADPH-thioredoxin reductase C activity2023

    • Author(s)
      Tran C.M., Mihara S., Yoshida K.*, Hisabori T.*
    • Journal Title

      Biochem. Biophysic. Res. Commun.

      Volume: 653 Pages: 47-52

    • DOI

      10.1016/j.bbrc.2023.02.055

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Chloroplast translation factor EF-Tu of Arabidopsis thaliana can be inactivated via oxidation of a specific cysteine residue2023

    • Author(s)
      Toriu Machi、Horie Momoka、Kumaki Yuka、Yoneyama Taku、Kore-eda Shin、Mitsuyama Susumu、Yoshida Keisuke、Hisabori Toru、Nishiyama Yoshitaka
    • Journal Title

      Biochemical Journal

      Volume: 480 Issue: 5 Pages: 307-318

    • DOI

      10.1042/bcj20220609

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Two specific domains of the γ subunit of chloroplast F <sub>o</sub> F <sub>1</sub> provide redox regulation of the ATP synthesis through conformational changes2023

    • Author(s)
      Akiyama Kentaro、Ozawa Shin-Ichiro、Takahashi Yuichiro、Yoshida Keisuke、Suzuki Toshiharu、Kondo Kumiko、Wakabayashi Ken-ichi、Hisabori Toru
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 120 Issue: 6

    • DOI

      10.1073/pnas.2218187120

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The ferredoxin/thioredoxin pathway constitutes an indispensable redox-signaling cascade for light-dependent reduction of chloroplast stromal proteins2022

    • Author(s)
      Yoshida K.*, Yokochi Y., Tanaka K., Hisabori T.
    • Journal Title

      J. Biol. Chem.

      Volume: 298 Issue: 12 Pages: 102650-102650

    • DOI

      10.1016/j.jbc.2022.102650

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dissipation of the proton electrochemical gradient in chloroplasts promotes the oxidation of ATP synthase by thioredoxin-like proteins2022

    • Author(s)
      Sekiguchi T., Yoshida K., Wakabayashi K-I., Hisabori T.*
    • Journal Title

      J. Biol. Chem.

      Volume: 298 Issue: 11 Pages: 102541-102541

    • DOI

      10.1016/j.jbc.2022.102541

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Verification of the Relationship between Redox Regulation of Thioredoxin Target Proteins and Their Proximity to Thylakoid Membranes2022

    • Author(s)
      Fukushi Y, Yokochi Y, Wakabayashi KI, Yoshida K, Hisabori T.
    • Journal Title

      Antioxidants

      Volume: 11 Issue: 4 Pages: 773-773

    • DOI

      10.3390/antiox11040773

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Importance of the C-terminal Cys pair of Phosphoribulokinase in Phototrophs in Thioredoxin-Dependent Regulation2022

    • Author(s)
      Fukui K, Yoshida K, Yokochi Y, Sekiguchi T, Wakabayashi KI, Hisabori T, Mihara S.
    • Journal Title

      Plant Cell Physiol.

      Volume: in press Issue: 6 Pages: 855-868

    • DOI

      10.1093/pcp/pcac050

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Oxidative regulation of chloroplast enzymes by thioredoxin and thioredoxin-like proteins in <i>Arabidopsis thaliana</i>2021

    • Author(s)
      Yokochi Yuichi、Fukushi Yuka、Wakabayashi Ken-ichi、Yoshida Keisuke、Hisabori Toru
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 118 Issue: 51

    • DOI

      10.1073/pnas.2114952118

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] クラミドモナスPGRL1 タンパク質におけるシステイン残基の機能解析2024

    • Author(s)
      高橋拓子,井須敦子,吉田啓亮,若林憲一,久堀徹,西山佳孝
    • Organizer
      第65回日本植物生理学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] シロイヌナズナpifi 変異体における光化学系II 最大量子収率の低下と葉緑体NDH 複合体活性の関わり2024

    • Author(s)
      村井美波,木村文香,今泉滉,吉田啓亮,車玉芬,石川規子,久堀徹,上妻馨梨,伊福健太郎
    • Organizer
      第65回日本植物生理学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 光合成誘導期におけるレドックス制御と電子伝達効率の関連性2024

    • Author(s)
      吉田啓亮,久堀徹
    • Organizer
      第65回日本植物生理学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] シロイヌナズナにおける色素体局在型Trx 様タンパク質の胚形成への関与2024

    • Author(s)
      福士結香,横地佑一,久堀徹,吉田啓亮
    • Organizer
      第65回日本植物生理学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 光合成エネルギー変換系酵素の機能制御の解明2024

    • Author(s)
      久堀徹
    • Organizer
      第65回日本植物生理学会年会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 葉緑体ATP合成酵素の活性制御の分子機構-40年でどこまで理解できたか-2023

    • Author(s)
      久堀徹
    • Organizer
      日本生体エネルギー研究会第49回討論会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Uncovering redox regulation network in plant chloroplasts2023

    • Author(s)
      Yoshida K.
    • Organizer
      Taiwan-Japan Plant Biology 2023 (TJPB2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] The role of PGRL1 in the photoprotection of photosystem I in the green alga Chlamydomonas reinhardtii2023

    • Author(s)
      Takahashi H., Takayama K., Isu A., Wakabayashi KI., Yoshida K. Hisabori T., Nishiyama Y.
    • Organizer
      Taiwan-Japan Plant Biology 2023 (TJPB2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Physiological impacts of Trx-like protein overexpression in Arabidopsis chloroplasts2023

    • Author(s)
      Fukushi Y., Hisabori T., Yoshida K.
    • Organizer
      Taiwan-Japan Plant Biology 2023 (TJPB2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Cystathionine-beta-synthase X proteins negatively regulate NADPH-thioredoxin reductase C activity2023

    • Author(s)
      Tran C.M., Mihara S., Yoshida K., Hisabori T.
    • Organizer
      Taiwan-Japan Plant Biology 2023 (TJPB2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] シロイヌナズナにおける葉緑体内局在型Trx様タンパク質の非光化学的消光制御への関与2023

    • Author(s)
      福士結香,横地佑一,若林憲一,吉田啓亮,久堀徹
    • Organizer
      第64回日本植物生理学会年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Biochemical Basis for Redox Regulation of Chloroplast-Localized Phosphofructokinase from Arabidopsis thaliana2023

    • Author(s)
      吉田啓亮、久堀徹
    • Organizer
      第64回日本植物生理学会年会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] クラミドモナスPGRL1 タンパク質におけるシステイン残基の機能解析2023

    • Author(s)
      高橋拓子,井須敦子,吉田啓亮,若林憲一,久堀徹,西山佳孝
    • Organizer
      第64回日本植物生理学会年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Trx およびTrx 様タンパク質による葉緑体タンパク質の酸化制御2022

    • Author(s)
      福士結香,横地佑一,若林憲一,吉田啓亮,久堀徹
    • Organizer
      第12回日本光合成学会年会およびシンポジウム(オンライン)
    • Related Report
      2022 Annual Research Report
  • [Presentation] Functional interaction between Cystathionine-β-synthase X proteins and NADPH-thioredoxin reductase C in Arabidopsis thaliana2022

    • Author(s)
      Minh Chau Tran, Shoko Mihara, Ken-ichi Wakabayashi, Keisuke Yoshida, Toru Hisabori
    • Organizer
      第12回日本光合成学会年会およびシンポジウム(オンライン)
    • Related Report
      2022 Annual Research Report
  • [Presentation] シアノバクテリアATP合成酵素αサブユニットのY252C変異2022

    • Author(s)
      町田亮人,近藤久益子,若林憲一,久堀徹
    • Organizer
      第12回日本光合成学会年会およびシンポジウム(オンライン)
    • Related Report
      2022 Annual Research Report
  • [Presentation] Oxidative regulation of chloroplast ATP synthase by thioredoxin-like proteins2022

    • Author(s)
      Sekiguchi Takatoshi, Keisuke Yoshida, Ken-Ichi Wakabayashi, Toru Hisabori
    • Organizer
      International Symposium on Photosynthesis and Chloroplast Regulation
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Redox regulation system in chloroplasts; what we know about reduction and oxidation of target enzymes2022

    • Author(s)
      Toru Hisabori, Yuichi Yokochi, Takatoshi Sekiguchi, Yuka Fukushi, Ken-Ichi Wakabayashi, Keisuke Yoshida
    • Organizer
      International Symposium on Photosynthesis and Chloroplast Regulation
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 葉緑体ATP合成酵素研究:クラミドモナスでできること2022

    • Author(s)
      秋山健太郎、若林憲一、久堀徹
    • Organizer
      第15回クラミドモナス研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 色素体セリン合成系酵素3-ホスホグリセリン酸デヒドロゲナーゼのリン酸化2022

    • Author(s)
      上村柚紀子、吉田啓亮、Chris White-Gloria、Greg B. Moorhead、若林憲一、久堀徹
    • Organizer
      第63回日本植物生理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Functional interaction between Cystathionine-beta-synthase X proteins and NADPH-thioredoxin reductase C in Arabidopsis thaliana2022

    • Author(s)
      Minh Chau Tran, Shoko Mihara, Ken-ichi Wakabayashi, Keisuke Yoshida, Toru Hisabori
    • Organizer
      第63回日本植物生理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] シロイヌナズナ葉緑体内におけるTrxおよびTrx様タンパク質による酸化制御2022

    • Author(s)
      福士結香、横地佑一、若林憲一、吉田啓亮、久堀徹
    • Organizer
      第63回日本植物生理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Trx様タンパク質による葉緑体ATP合成酵素の不活性化制御2022

    • Author(s)
      関口敬俊、吉田啓亮、若林憲一、久堀徹
    • Organizer
      第63回日本植物生理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 光合成制御の分子スイッチを理解する2022

    • Author(s)
      久堀徹
    • Organizer
      第24回植物オルガネラワークショップ
    • Related Report
      2021 Annual Research Report
  • [Presentation] チオレドキシン様タンパク質による葉緑体ATP合成酵素の酸化制御2021

    • Author(s)
      関口敬俊、吉田啓亮、若林憲一、久堀徹
    • Organizer
      日本光合成学会2021年年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] シアノバクテリアATP合成酵素γサブユニットによるATP加水分解・合成活性の制御機構2021

    • Author(s)
      近藤久益子、和泉諒之、鈴木俊治、久堀徹
    • Organizer
      日本光合成学会2021年年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Trx様タンパク質による葉緑体ATP合成酵素の不活性化制御2021

    • Author(s)
      関口敬俊、吉田啓亮、若林憲一、久堀徹
    • Organizer
      日本生体エネルギー研究会第47回討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] シアノバクテリアATP合成酵素αサブユニットのY252C変異2021

    • Author(s)
      町田亮人、近藤久益子、若林憲一、久堀徹
    • Organizer
      日本生体エネルギー研究会第47回討論会
    • Related Report
      2021 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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