FD, a bZIP Protein Mediating Signals from the Floral Pathway Integrator FT at the Shoot Apex

DOI Web Site PubMed 122 Citations
  • Mitsutomo Abe
    Department of Botany, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan.
  • Yasushi Kobayashi
    Department of Botany, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan.
  • Sumiko Yamamoto
    Department of Botany, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan.
  • Yasufumi Daimon
    Department of Botany, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan.
  • Ayako Yamaguchi
    Department of Botany, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan.
  • Yoko Ikeda
    Department of Botany, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan.
  • Harutaka Ichinoki
    Department of Botany, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan.
  • Michitaka Notaguchi
    Department of Botany, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan.
  • Koji Goto
    Department of Botany, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan.
  • Takashi Araki
    Department of Botany, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan.

Description

<jats:p> <jats:italic>FLOWERING LOCUS T</jats:italic> ( <jats:italic>FT</jats:italic> ) is a conserved promoter of flowering that acts downstream of various regulatory pathways, including one that mediates photoperiodic induction through <jats:italic>CONSTANS</jats:italic> ( <jats:italic>CO</jats:italic> ), and is expressed in the vasculature of cotyledons and leaves. A bZIP transcription factor, FD, preferentially expressed in the shoot apex is required for FT to promote flowering. FD and FT are interdependent partners through protein interaction and act at the shoot apex to promote floral transition and to initiate floral development through transcriptional activation of a floral meristem identity gene, <jats:italic>APETALA1</jats:italic> ( <jats:italic>AP1</jats:italic> ). <jats:italic>FT</jats:italic> may represent a long-distance signal in flowering. </jats:p>

Journal

  • Science

    Science 309 (5737), 1052-1056, 2005-08-12

    American Association for the Advancement of Science (AAAS)

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