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New challenge on planar cell polarity in plants

Research Project

Project/Area Number 16K14747
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Plant molecular biology/Plant physiology
Research InstitutionHokkaido University

Principal Investigator

Fujita Tomomichi  北海道大学, 理学研究院, 教授 (50322631)

Research Collaborator Shindoh Chisato  
The Ooi-Kock  
Yao Jiawei  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsヒメツリガネゴケ / 平面内細胞極性 / 原糸体 / 膜タンパク質
Outline of Final Research Achievements

How cell polarity is established and maintained is a fundamental question for all organisms. The moss, Physcomitrella patens serves as an excellent model for studying cell polarity due to its easy observation at a cell level, high frequency of gene targeting and available genome information. In order to understand cell polarity regulation in plants, we studied a plant specific, plasma membrane protein in this research by generating overexpression or knock-out mutant lines and performed RNA-seq analysis in these mutants. Thus, we found this gene is, together with auxin signaling factors and microtubule, involved in cell polarity regulation in the moss protonemata.

Academic Significance and Societal Importance of the Research Achievements

平面内細胞極性(planar cell polarity, PCP)は、生物の高次機能に大切であり、その破綻は生命活動を直接脅かす。動物においてPCPの分子メカニズムの研究は進んできた一方で、植物のPCP制御の研究はあまり進んでいなかった。本研究により、植物のPCP制御に大事な複数の因子を新しく明らかにできたことは学術的意義が高く、この研究を手掛かりに植物のPCP制御の分子基盤の全容解明とまた植物種間や器官間におけるPCP制御の多様性や普遍性の研究への発展が期待できる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (6 results)

All 2019 2018 2017 2016

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Acknowledgement Compliant: 1 results) Presentation (5 results)

  • [Journal Article] A hypergravity environment increases chloroplast size, photosynthesis, and plant growth in the moss Physcomitrella patens.2017

    • Author(s)
      Kaori Takemura, Hiroyuki Kamachi, Atsushi Kume, Tomomichi Fujita, Ichirou Karahara, Yuko T. Hanba.
    • Journal Title

      Journal of Plant Research

      Volume: 130 Issue: 1 Pages: 181-192

    • DOI

      10.1007/s10265-016-0879-z

    • NAID

      120006491410

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Ancient arabinogalactans modulate auxin signaling in Physcomitrella patens to regulate polarity2019

    • Author(s)
      鄭恵国, Ren Junling, 長谷部 光泰, 藤田 知道
    • Organizer
      第60回日本植物生理学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] ヒメツリガネゴケの平面内細胞極性における細胞膜局在型タンパク質のドメイン機能解析2018

    • Author(s)
      進藤千聖,Ooi-Kock Teh,Junling Ren,長谷部光泰,藤田知道
    • Organizer
      第59回日本植物生理学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Functional analysis of RopGEFs in planar cell polarity in the moss Physcomitrella patens2018

    • Author(s)
      Yao Jiawei, Teh Ooi-Kock, Fujita Tomomichi
    • Organizer
      第59回日本植物生理学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] ヒメツリガネゴケの平面内細胞極性における細胞膜局在型タンパク質のドメイン機能解析2017

    • Author(s)
      進藤千聖, Ooi-Kock Teh, Ren Junling, 長谷部光泰, 藤田知道
    • Organizer
      日本植物学会
    • Related Report
      2017 Research-status Report
  • [Presentation] ヒメツリガネゴケの平面内細胞極性における細胞膜局在型タンパク質の機能解析2016

    • Author(s)
      進藤千聖、Ren Junling、藤田知道
    • Organizer
      日本植物学会
    • Place of Presentation
      沖縄コンベンションセンター(沖縄・宜野湾市)
    • Year and Date
      2016-09-16
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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