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Development of genetically-encoded voltage indicator for plants

Research Project

Project/Area Number 19K16164
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 InstitutionNagoya University

Principal Investigator

Yoshinari Akira  名古屋大学, 高等研究院, 特任助教 (00829872)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywordsシロイヌナズナ / 膜電位 / GEVI / イメージング / 膜電位プローブ / 脱分極 / 環境応答 / 蛍光イメージング / 植物 / 膜電位イメージング / シグナリング
Outline of Research at the Start

近年、植物の細胞間情報伝達メカニズムとして「膜電位の変化」が注目されている。特に傷害に伴う膜電位の変化は傷害を受けた部位から離れた部位まで伝達され、組織・器官間の高速・長距離シグナル伝達機構として機能することが示されている。また、膜輸送タンパク質を介した物質輸送には、プロトン勾配や膜電位が密接に関わっていることから、膜電位の大小や局在が細胞毎に多様化している可能性がある。本研究では、植物の膜電位を可視化する新規の蛍光プローブを作製し、定量的なイメージングによって植物の膜電位シグナリング機構を理解する。

Outline of Final Research Achievements

This study aimed to establish a membrane potential imaging system using existing membrane potential sensors and newly developed sensors, so-called genetically-encoded voltage indicators (GEVIs), in order to obtain a more detailed understanding of the important membrane potentials in plant physiology. This study demonstrated the necessity of using GEVIs in plant cell membrane potential imaging that are less affected by pH and provided insights for future Plant-GEVI development.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果により、将来のPlant-GEVI開発の指針が示された。また、研究の過程で得られた数多くの新規GEVIは、動物細胞においては良好な応答を示しており、神経細胞における膜電位イメージングなどへの応用が期待される。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (4 results)

All 2020 2019

All Journal Article (3 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (1 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Sensors for the quantification, localization and analysis of the dynamics of plant hormones2020

    • Author(s)
      Isoda Reika、Yoshinari Akira、Ishikawa Yuuma、Sadoine Mayuri、Simon Rudiger、Frommer Wolf B.、Nakamura Masayoshi
    • Journal Title

      The Plant Journal

      Volume: 105 Issue: 2 Pages: 542-557

    • DOI

      10.1111/tpj.15096

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Using Genetically Encoded Fluorescent Biosensors for Quantitative In Vivo Imaging2020

    • Author(s)
      Yoshinari Akira、Moe-Lange Jacob、Kleist Thomas J.、Cartwright Heather N.、Quint David A.、Ehrhardt David W.、Frommer Wolf B.、Nakamura Masayoshi
    • Journal Title

      Arabidopsis Protocols, Methods in Molecular Biology

      Volume: 2200 Pages: 303-322

    • DOI

      10.1007/978-1-0716-0880-7_14

    • ISBN
      9781071608791, 9781071608807
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Polar Localization of the Borate Exporter BOR1 Requires AP2-Dependent Endocytosis2019

    • Author(s)
      Yoshinari Akira、Hosokawa Takuya、Amano Taro、Beier Marcel Pascal、Kunieda Tadashi、Shimada Tomoo、Hara-Nishimura Ikuko、Naito Satoshi、Takano Junpei
    • Journal Title

      Plant Physiology

      Volume: 179 Issue: 4 Pages: 1569-1580

    • DOI

      10.1104/pp.18.01017

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] AP2-dependent and independent endocytic pathways: differential regulation of polar localization and vacuolar sorting of the borate transporter BOR12019

    • Author(s)
      Yoshinari Akira、Hosokawa Takuya、Amano Taro、Beier Marcel Pascal、Kunieda Tadashi、Shimada Tomoo、Hara-Nishimura Ikuko、Naito Satoshi、Takano Junpei
    • Organizer
      IWPMB2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2024-01-30  

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