Gibberellin Acts Positively Then Negatively to Control Onset of Flower Formation in<i>Arabidopsis</i>

DOI Web Site 被引用文献9件 参考文献65件
  • Nobutoshi Yamaguchi
    Department of Biology, University of Pennsylvania, 415 South University Avenue, Philadelphia, PA 19104–6018, USA.
  • Cara M. Winter
    Department of Biology, University of Pennsylvania, 415 South University Avenue, Philadelphia, PA 19104–6018, USA.
  • Miin-Feng Wu
    Department of Biology, University of Pennsylvania, 415 South University Avenue, Philadelphia, PA 19104–6018, USA.
  • Yuri Kanno
    RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, 230-0045, Japan.
  • Ayako Yamaguchi
    Department of Biology, University of Pennsylvania, 415 South University Avenue, Philadelphia, PA 19104–6018, USA.
  • Mitsunori Seo
    RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, 230-0045, Japan.
  • Doris Wagner
    Department of Biology, University of Pennsylvania, 415 South University Avenue, Philadelphia, PA 19104–6018, USA.

説明

<jats:title>One Hormone, Two Phases</jats:title><jats:p>The switch from vegetative growth to flowering in the plant<jats:italic>Arabidopsis</jats:italic>involves two phases—inflorescence branching and flowering.<jats:bold>Yamaguchi<jats:italic>et al.</jats:italic></jats:bold>(p.<jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6184" page="638" related-article-type="in-this-issue" vol="344" xlink:href="10.1126/science.1250498">638</jats:related-article>) examined how the phytohormone gibberellin regulates each phase differently. First, gibberellin levels increase and stimulate production of key flowering factors, one of which degrades gibberellin. As gibberellin levels then fall, the next phase of flowering factors is released from gibberellin repression. By regulating inflorescence branching separately from flowering, this system determines overall seed yield.</jats:p>

収録刊行物

  • Science

    Science 344 (6184), 638-641, 2014-05-09

    American Association for the Advancement of Science (AAAS)

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