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Analysis of tuberization by florigen activation complex

Research Project

Project/Area Number 17K07609
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Science in genetics and breeding
Research InstitutionYokohama City University

Principal Investigator

TAOKA KEN-ICHIRO  横浜市立大学, 木原生物学研究所, 特任助教 (00467698)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsフロリゲン / ジャガイモ / 塊茎形成 / FT / 植物
Outline of Final Research Achievements

The molecular mechanism for day-length dependent tuberization of potato was analyzed. Here we used a potato cultivar, andigena W553-4, because Sayaka, which we used in the previous study, showed a moderate response to photoperiod for tuberization. W553-4 showed an ideal strict response, although it has a drawback that the transformation efficiency was low. A protoplast assay showed that TFL1 and a chemical inhibitor can inhibit SP6A activity.

Academic Significance and Societal Importance of the Research Achievements

学術的意義として、国内で入手可能な、ジャガイモ塊茎形成の日長応答性に優れた品種を見出した。花成誘導と同様に、TFL1がSP6Aを競合的に阻害して適切な塊茎形成が誘導される可能性を見出したことから、花成と塊茎誘導の分子機構の類似性が示唆された。さらに、フロリゲン阻害化合物が塊茎形成も阻害できることを見出したことから、塊茎形成過程を薬理学的に解析できるツールを得た。社会的意義としては、フロリゲン阻害化合物を用いて、遺伝子組み換えによらずに塊茎形成時期や収量をコントロールできる可能性が見出された。

Report

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

    (6 results)

All 2020 2019 2018 2017

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (5 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] TFL1-Like Proteins in Rice Antagonize Rice FT-Like Protein in Inflorescence Development by Competition for Complex Formation with 14-3-3 and FD.2018

    • Author(s)
      Kaneko-Suzuki M, Kurihara-Ishikawa R, Okushita-Terakawa C, Kojima C, Nagano-Fujiwara M, Ohki I, Tsuji H, Shimamoto K, Taoka KI.
    • Journal Title

      Plant Cell Physiol.

      Volume: 59 Issue: 3 Pages: 458-468

    • DOI

      10.1093/pcp/pcy021

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] フロリゲン活性化複合体阻害化合物による花成調節2020

    • Author(s)
      田岡健一郎,河原郁美,島谷善平,寺田理枝,辻寛之,児嶋長次郎
    • Organizer
      第61回日本植物生理学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] フロリゲン複合体形成を制御する化合物による花成調節2019

    • Author(s)
      田岡健一郎,河原郁美,島谷善平,寺田理枝,辻寛之,児嶋長次郎
    • Organizer
      第37回日本植物細胞分子生物学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 高感度な発光レポーターNanoLucの植物細胞での利用2018

    • Author(s)
      田岡健一郎, 島谷 善平, 小川 真奈, 齋藤 洋美, 池田 洋一, 赤司 裕子、山口 公志、寺田 理枝、川崎 努、辻 寛之
    • Organizer
      第60回日本植物生理学会年会
    • Related Report
      2018 Research-status Report
  • [Presentation] ジャガイモ塊茎誘導におけるTFL1ホモログのアンチチューベリゲン活性の役割2018

    • Author(s)
      高橋賢多、齋藤亜美、張禎日、島本功、辻寛之、田岡健一郎
    • Organizer
      第59回日本植物生理学会年会
    • Related Report
      2017 Research-status Report
  • [Presentation] Hd3a and RCN in rice antagonize in inflorescence development through competition for complex formation with 14-3-3 and FD2017

    • Author(s)
      Ken-ichiro Taoka, Miho Suzuki, Hiroyuki Tsuji, Chojiro Kojima, Ko Shimamoto
    • Organizer
      Cold Spring Harbor Asia conference on Plant Cell & Development Biology
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2021-02-19  

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