IDEAS home Printed from https://ideas.repec.org/a/nat/nature/v443y2006i7113d10.1038_nature05176.html
   My bibliography  Save this article

The Mg-chelatase H subunit is an abscisic acid receptor

Author

Listed:
  • Yuan-Yue Shen

    (China Agricultural University)

  • Xiao-Fang Wang

    (China Agricultural University)

  • Fu-Qing Wu

    (China Agricultural University)

  • Shu-Yuan Du

    (China Agricultural University)

  • Zheng Cao

    (China Agricultural University)

  • Yi Shang

    (China Agricultural University)

  • Xiu-Ling Wang

    (China Agricultural University)

  • Chang-Cao Peng

    (China Agricultural University)

  • Xiang-Chun Yu

    (China Agricultural University)

  • Sai-Yong Zhu

    (China Agricultural University)

  • Ren-Chun Fan

    (China Agricultural University)

  • Yan-Hong Xu

    (China Agricultural University)

  • Da-Peng Zhang

    (China Agricultural University)

Abstract

Abscisic acid (ABA) is a vital phytohormone that regulates mainly stomatal aperture and seed development, but ABA receptors involved in these processes have yet to be determined. We previously identified from broad bean an ABA-binding protein (ABAR) potentially involved in stomatal signalling, the gene for which encodes the H subunit of Mg-chelatase (CHLH), which is a key component in both chlorophyll biosynthesis and plastid-to-nucleus signalling. Here we show that Arabidopsis ABAR/CHLH specifically binds ABA, and mediates ABA signalling as a positive regulator in seed germination, post-germination growth and stomatal movement, showing that ABAR/CHLH is an ABA receptor. We show also that ABAR/CHLH is a ubiquitous protein expressed in both green and non-green tissues, indicating that it might be able to perceive the ABA signal at the whole-plant level.

Suggested Citation

  • Yuan-Yue Shen & Xiao-Fang Wang & Fu-Qing Wu & Shu-Yuan Du & Zheng Cao & Yi Shang & Xiu-Ling Wang & Chang-Cao Peng & Xiang-Chun Yu & Sai-Yong Zhu & Ren-Chun Fan & Yan-Hong Xu & Da-Peng Zhang, 2006. "The Mg-chelatase H subunit is an abscisic acid receptor," Nature, Nature, vol. 443(7113), pages 823-826, October.
    • Handle: RePEc:nat:nature:v:443:y:2006:i:7113:d:10.1038_nature05176
    DOI: 10.1038/nature05176
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/nature05176
    File Function: Abstract
    Download Restriction: Access to the full text of the articles in this series is restricted.
    File URL: https://libkey.io/10.1038/nature05176?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
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    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:nature:v:443:y:2006:i:7113:d:10.1038_nature05176. 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.