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14-3-3 proteins act as intracellular receptors for rice Hd3a florigen

Author

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  • Ken-ichiro Taoka

    (Laboratory of Plant Molecular Genetics, Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma)

  • Izuru Ohki

    (Laboratory of Biophysics, Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma)

  • Hiroyuki Tsuji

    (Laboratory of Plant Molecular Genetics, Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma)

  • Kyoko Furuita

    (Laboratory of Biophysics, Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma)

  • Kokoro Hayashi

    (Laboratory of Biophysics, Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma)

  • Tomoko Yanase

    (Laboratory of Plant Molecular Genetics, Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma)

  • Midori Yamaguchi

    (Laboratory of Plant Molecular Genetics, Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma)

  • Chika Nakashima

    (Laboratory of Plant Molecular Genetics, Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma)

  • Yekti Asih Purwestri

    (Laboratory of Plant Molecular Genetics, Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma
    Present address: Faculty of Biology, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia.)

  • Shojiro Tamaki

    (Laboratory of Plant Molecular Genetics, Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma)

  • Yuka Ogaki

    (Laboratory of Plant Molecular Genetics, Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma)

  • Chihiro Shimada

    (Laboratory of Plant Molecular Genetics, Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma)

  • Atsushi Nakagawa

    (Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita)

  • Chojiro Kojima

    (Laboratory of Biophysics, Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma
    Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita)

  • Ko Shimamoto

    (Laboratory of Plant Molecular Genetics, Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma)

Abstract

How florigen says it with flowers Florigen, a plant hormone that translocates from leaves to the shoot apex to induce flowering, is encoded by the FLOWERING LOCUS T (FT) gene. The detailed molecular mechanism for florigen action and the identity of its receptors remained unknown. Ko Shimamoto and colleagues show that in rice, florigen binds to 14-3-3 proteins, a type of regulatory molecule present in all eukaryotic cells, and to the transcription factor OsFD1. The crystal structure of the resulting florigen activation complex (FAC) has been determined, providing a mechanistic basis for florigen function in flowering. This work offers clues for improving agriculturally important traits by manipulating florigen and its regulators.

Suggested Citation

  • Ken-ichiro Taoka & Izuru Ohki & Hiroyuki Tsuji & Kyoko Furuita & Kokoro Hayashi & Tomoko Yanase & Midori Yamaguchi & Chika Nakashima & Yekti Asih Purwestri & Shojiro Tamaki & Yuka Ogaki & Chihiro Shim, 2011. "14-3-3 proteins act as intracellular receptors for rice Hd3a florigen," Nature, Nature, vol. 476(7360), pages 332-335, August.
    • Handle: RePEc:nat:nature:v:476:y:2011:i:7360:d:10.1038_nature10272
    DOI: 10.1038/nature10272
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