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2013 Fiscal Year Final Research Report

Study of molecular mechanisms underlying phototropic responses independent of auxin lateral distribution

Research Project

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Project/Area Number 24657027
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field Plant molecular biology/Plant physiology
Research InstitutionNiigata University

Principal Investigator

HAGA Ken  新潟大学, 自然科学研究科, 研究員 (50382031)

Co-Investigator(Renkei-kenkyūsha) SAKAI Tatsuya  新潟大学, 自然科学系, 准教授 (10360554)
Project Period (FY) 2012-04-01 – 2014-03-31
Keywords光屈性 / コロドニー・ウエント説 / オーキシン / PIN / シロイヌナズナ / 根
Research Abstract

Plants are growing to or away from light direction to adapt to their light environments. The responses, so-called phototropism, have been well-studied for a long time. Auxin, one of plant hormones, is known to stimulate plant growth and thought to be involved in phototropism by changing its endogenous distribution in responses to light irradiation. The present study analyzed phototropic responses of Arabidopsis seedling roots, and demonstrated existence of molecular mechanisms underlying phototropic responses independent of auxin asymmetrical lateral distribution. Our investigations strongly suggested that light stimulation directly controls regulatory components involved in auxin-mediated responses, such as auxin receptors and/or auxin responsive transcription factors. The present results contribute to establishment of a new model responsible for phototropic responses.

  • Research Products

    (16 results)

All 2014 2013 2012

All Journal Article (7 results) (of which Peer Reviewed: 6 results) Presentation (9 results)

  • [Journal Article] The phototropic response is locally regulated within the topmost light-responsive region of the Arabidopsis thaliana seedling2014

    • Author(s)
      Yamamoto, K., Suzuki, T., Aihara, Y., Haga, K., Sakai, T., and Nagatani, A.
    • Journal Title

      Plant and Cell Physiology

      Volume: 55(3) Pages: 497-506

    • DOI

      10.1093/pcp/pct184

    • Peer Reviewed
  • [Journal Article] Identification of rice Allene Oxide Cyclase mutants and the function of jasmonate for defence against Magnaporthe oryzae2013

    • Author(s)
      Riemann, M., Haga, K., Shimizu, T., Okada, K., Ando, S., Mochizuki, S., Nishizawa, Y., Yamanouchi, U., Nick, P., Yano, M., Minami, E., Takano, M., Yamane, H., and Iino, M.
    • Journal Title

      The Plant Journal

      Volume: 74 Pages: 226-238

    • DOI

      10.1111/tpj.12115

    • Peer Reviewed
  • [Journal Article] Differential roles of auxin efflux carrier PIN proteins in hypocotyl phototropism of etiolated Arabidopsis seedlings depend on the direction of light stimulus2013

    • Author(s)
      Haga, K., and Sakai, T.
    • Journal Title

      Plant Signaling & Behavior

      Pages: e22556

    • DOI

      10.4161/psb.22556

    • Peer Reviewed
  • [Journal Article] 光屈性におけるオーキシン輸送制御2012

    • Author(s)
      酒井達也、芳賀 健
    • Journal Title

      植物の生長調節

      Volume: 47 Pages: 85-92

    • URL

      http://ci.nii.ac.jp/naid/110009580313

  • [Journal Article] PIN auxin efflux carriers are necessary for pulse-induced but not continuous light-induced phototropism in Arabidopsis2012

    • Author(s)
      Haga, K., and Sakai, T.
    • Journal Title

      Plant Physiology

      Volume: 160 Pages: 763-776

    • DOI

      10.1104/pp.112.202432

    • Peer Reviewed
  • [Journal Article] Molecular genetic analysis of phototropism in Arabidopsis2012

    • Author(s)
      Sakai, T., and Haga, K.
    • Journal Title

      Plant and Cell Physiology

      Volume: 53 Pages: 1517-1534

    • DOI

      10.1093/pcp/pcs111

    • Peer Reviewed
  • [Journal Article] The WAVY GROWTH 3 E3 ligase family controls the gravitropic response in Arabidopsis roots2012

    • Author(s)
      Sakai, T., Mochizuki, S., Haga, K., Uehara, Y., Suzuki, A., Harada, A., Wada, T., Ishiguro, S., and Okada, K.
    • Journal Title

      The Plant Journal

      Volume: 70 Pages: 303-314

    • DOI

      10.1111/j.1365-313X.2011.04870.x

    • Peer Reviewed
  • [Presentation] シロイヌナズナ胚軸の一次光屈性および二次光屈性におけるD6プロテインカイネースの役割2014

    • Author(s)
      芳賀 健、酒井達也
    • Organizer
      第55回日本植物生理学会年会
    • Place of Presentation
      富山
    • Year and Date
      2014-03-18
  • [Presentation] シロイヌナズナの根の光屈性におけるオーキシンの機能と作用機序の解析2014

    • Author(s)
      木村太郎、芳賀 健、林 謙一郎、Yunde Zhao、竹林裕美子、笠原博幸、酒井達也
    • Organizer
      第55回日本植物生理学会年会
    • Place of Presentation
      富山
    • Year and Date
      2014-03-18
  • [Presentation] Involvement of RPT2 in phytochrome-mediated regulation of Arabidopsis hypocotyl phototropism2013

    • Author(s)
      Haga, K., and Sakai, T.
    • Organizer
      International Symposium on Plant Photobiology 2013
    • Place of Presentation
      Edinburgh
    • Year and Date
      2013-06-03
  • [Presentation] イネのアレンオキシドサイクラーゼ変異体の単離と、いもち病菌抵抗性におけるジャスモン酸類の役割2013

    • Author(s)
      Michael Riemann、芳賀 健、清水 崇史、岡田 憲典、安藤 杉尋、望月 進、西澤 洋子、山内 歌子、Peter Nick、矢野 昌裕、南 栄一、高野 誠、山根 久和、飯野 盛利
    • Organizer
      第54回日本植物生理学会年会
    • Place of Presentation
      岡山
    • Year and Date
      2013-03-23
  • [Presentation] シロイヌナズナ胚軸の一次光屈性および二次光屈性におけるオーキシン排出輸送体PINの役割2013

    • Author(s)
      芳賀 健、酒井達也
    • Organizer
      第54回日本植物生理学会年会
    • Place of Presentation
      岡山
    • Year and Date
      2013-03-21
  • [Presentation] Phototropism and auxin transport2013

    • Author(s)
      Sakai, T., and Haga, K.
    • Organizer
      第54回日本植物生理学会年会
    • Place of Presentation
      岡山
    • Year and Date
      2013-03-21
  • [Presentation] PIN auxin efflux carriers are necessary for pulse-induced but not continuous-light-induced phototropism in Arabidopsis2012

    • Author(s)
      Haga, K., and Sakai, T.
    • Organizer
      AUXIN2012
    • Place of Presentation
      Hawaii
    • Year and Date
      2012-12-09
  • [Presentation] PIN-mediated hypocotyl phototropism in Arabidopsis2012

    • Author(s)
      Haga, K., and Sakai, T.
    • Organizer
      The 1st International Symposium on Plant Environmental Sensing
    • Place of Presentation
      Nara
    • Year and Date
      2012-03-18
  • [Presentation] オーキシン排出輸送体PINを介したシロイヌナズナ胚軸の光屈性2012

    • Author(s)
      芳賀 健、酒井達也
    • Organizer
      第53回日本植物生理学会年会
    • Place of Presentation
      京都
    • Year and Date
      2012-03-16

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Published: 2015-06-25  

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