IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v7y2016i1d10.1038_ncomms12377.html
   My bibliography  Save this article

Phytochrome B and REVEILLE1/2-mediated signalling controls seed dormancy and germination in Arabidopsis

Author

Listed:
  • Zhimin Jiang

    (Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences
    University of the Chinese Academy of Sciences)

  • Gang Xu

    (Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences
    University of the Chinese Academy of Sciences)

  • Yanjun Jing

    (Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences)

  • Weijiang Tang

    (Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences)

  • Rongcheng Lin

    (Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences
    CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences)

Abstract

Seeds maintain a dormant state to withstand adverse conditions and germinate when conditions become favourable to give rise to a new generation of flowering plants. Seed dormancy and germination are tightly controlled by internal and external signals. Although phytochrome photoreceptors are proposed to regulate primary seed dormancy, the underlying molecular mechanism remains elusive. Here we show that the REVEILLE1 (RVE1) and RVE2 transcription factors promote primary seed dormancy and repress red/far-red-light-reversible germination downstream of phytochrome B (phyB) in Arabidopsis thaliana. RVE1 and RVE2 expression is downregulated after imbibition and by phyB. RVE1 directly binds to the promoter of GIBBERELLIN 3-OXIDASE 2, inhibits its transcription and thus suppresses the biosynthesis of bioactive gibberellins. In addition, DELAY OF GERMINATION 1 also acts downstream of phyB. This study identifies a signalling pathway that integrates environmental light input with internal factors to control both seed dormancy and germination.

Suggested Citation

  • Zhimin Jiang & Gang Xu & Yanjun Jing & Weijiang Tang & Rongcheng Lin, 2016. "Phytochrome B and REVEILLE1/2-mediated signalling controls seed dormancy and germination in Arabidopsis," Nature Communications, Nature, vol. 7(1), pages 1-10, November.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms12377
    DOI: 10.1038/ncomms12377
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/ncomms12377
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/ncomms12377?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms12377. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.