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Regulatory mechanism for plant growth by brassinosteroid signalling network

Research Project

Project/Area Number 18H02140
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 38030:Applied biochemistry-related
Research InstitutionKyoto University (2019-2020)
Institute of Physical and Chemical Research (2018)

Principal Investigator

Nakano Takeshi  京都大学, 生命科学研究科, 教授 (30281653)

Co-Investigator(Kenkyū-buntansha) 池田 美穂 (樋口美穂)  埼玉大学, 理工学研究科, 准教授 (10717698)
高木 優  埼玉大学, 理工学研究科, 教授 (40357348)
光田 展隆  国立研究開発法人産業技術総合研究所, 生命工学領域, 研究グループ長 (80450667)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2019: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2018: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Keywords植物ホルモン / ブラシノステロイド / ケミカルバイオロジー / シグナル伝達 / 転写因子 / 分子遺伝学
Outline of Final Research Achievements

Brassinosteroid (BR) is an important phytohormone that regulates growth and stress responses. A number of factors related to BR signaling have been identified, but mutant phenotype of identified BR-transacting factors might suggest the possibility of existence of unknown transcription factors related to BR signaling. To identify novel transcription factors related to BR signaling, we screened the plants which exhibit altered sensitivity to the BR biosynthesis inhibitor, Brz (brassinazole), by using our set of transgenic Arabidopsis plants that expressed chimeric repressors (CRES-T lines). The chimeric repressors that is produced by fusion of a transcription factor to the plant-specific repression domain, SRDX, suppresses target genes of the transcription factor dominantly. From 18,400 CRES-T plants, we had identified at least two mutants BBZ1/2, BHH1/2, BHB1/2 that showed strong phenotype of altered sensitivity against Brz.

Academic Significance and Societal Importance of the Research Achievements

植物ホルモン・ブラシノステロイドの生理活性発現機構においては、機能欠損変異体を用いた分子遺伝学によって、細胞膜上に存在する膜貫通型Ser/Thrキナーゼ構造を持つBR受容体BRI1が単離された。しかし、BR情報伝達機構においては、受容体と細胞核の間の情報伝達中流域や転写制御領域に未解明の部分が多く残されている。本申請研究は、この「BRシグナル伝達」の全貌解明に寄与することという学術的な意義を持つと考えられる。

Report

(2 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • Research Products

    (10 results)

All 2021 2020

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

  • [Journal Article] Highlighting the potential utility of MBP crystallization chaperone for Arabidopsis BIL1/BZR1 transcription factor-DNA complex2021

    • Author(s)
      Nosaki Shohei、Terada Tohru、Nakamura Akira、Hirabayashi Kei、Xu Yuqun、Bui Thi Bao Chau、Nakano Takeshi、Tanokura Masaru、Miyakawa Takuya
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 3879-3879

    • DOI

      10.1038/s41598-021-83532-2

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Arabidopsis PsbP-like protein 1 Facilitates the Assembly of the Photosystem II Supercomplexes and Optimizes Plant Fitness under Fluctuating Light2020

    • Author(s)
      Yufen Che, Shoko Kusama, Shintaro Matsui, Marjaana Suorsa, Takeshi Nakano, Eva-Mari Aro, Kentaro Ifuku
    • Journal Title

      Plant & Cell Physiology

      Volume: pcaa045 Issue: 6 Pages: 1-26

    • DOI

      10.1093/pcp/pcaa045

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] PsbQ-Like Protein 3 Functions as an Assembly Factor for the Chloroplast NADH Dehydrogenase-like Complex in Arabidopsis2020

    • Author(s)
      Ishikawa Noriko、Yokoe Yuki、Nishimura Taishi、Nakano Takeshi、Ifuku Kentaro
    • Journal Title

      Plant and Cell Physiology

      Volume: in press Issue: 7 Pages: 1252-1261

    • DOI

      10.1093/pcp/pcaa050

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Pattern and Trigger of Fruit Self-thinning in Japanese Pears2020

    • Author(s)
      Nakamura-Yamaguchi Ayako、Kitahata Nobutaka、Nishitani Chikako、Takada Norio、Terakami Shingo、Sawamura Yutaka、Matsuyama Tomoki、Asami Tadao、Nakano Takeshi、Saito Toshihiro、Yamamoto Toshiya
    • Journal Title

      The Horticulture Journal

      Volume: 89 Issue: 4 Pages: 367-374

    • DOI

      10.2503/hortj.UTD-177

    • NAID

      130007879274

    • ISSN
      2189-0102, 2189-0110
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inhibition of mitochondrial complex I by the novel compound FSL0260 enhances high salinity-stress tolerance in Arabidopsis thaliana2020

    • Author(s)
      Sako Kaori、Futamura Yushi、Shimizu Takeshi、Matsui Akihiro、Hirano Hiroyuki、Kondoh Yasumitsu、Muroi Makoto、Aono Harumi、Tanaka Maho、Honda Kaori、Shimizu Kenshirou、Kawatani Makoto、Nakano Takeshi、Osada Hiroyuki、Noguchi Ko、Seki Motoaki
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 8691-8691

    • DOI

      10.1038/s41598-020-65614-9

    • NAID

      120006876594

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] ブラシノステロイドシグナル伝達上の新規転写因子BHHsの植物器官成長促進における機能解析2020

    • Author(s)
      査干扎那、田中雄一郎、長谷川玲花、山上あゆみ、池田美穂、光田展隆、久城哲夫、高木 優、浅見忠男、中野雄司
    • Organizer
      第62回日本植物生理学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ブラシノステロイド新規情報伝達因子BSH2のBR-JA間クロストークにおける機能解析2020

    • Author(s)
      蘇日娜、山上あゆみ、宮地朋子、作田正明、浅見忠男、篠崎一雄、中野雄司
    • Organizer
      第62回日本植物生理学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ブラシノステロイド情報伝達経路上の新規bHLH型転写因子の植物成長における機能解析2020

    • Author(s)
      田中雄一朗,長谷川玲花,山上あゆみ,池田美穂,光田展隆,久城哲夫,篠崎一雄,浅見忠男,高木優,中野雄司
    • Organizer
      日本農芸化学会大会2020年度大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ブラシノステロイド情報伝達における新規MYB型転写因子BMYsの単離と機能解析2020

    • Author(s)
      藤田健司郎,長谷川玲花,山上あゆみ,池田美穂,光田展隆,久城哲夫,篠崎一雄,浅見忠男,高木優,中野雄司
    • Organizer
      日本農芸化学会大会2020年度大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 植物成長機構の解明を目指すケミカルバイオロジー研究2020

    • Author(s)
      中野雄司
    • Organizer
      第61回日本植物生理学会年会
    • Related Report
      2020 Annual Research Report

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

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