Chinese Bulletin of Botany ›› 2012, Vol. 47 ›› Issue (5): 515-524.DOI: 10.3724/SP.J.1259.2012.00515

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Abscisic Acid Receptors: Abscisic Acid Signaling Transduction Pathways in Plants

Wenkai Yi1,2, Jia Wang1,2,3, Hui Yang1,2, Yun Tian1,2*, Xiangyang Lu1,2*   

  1. 1College of Life Science and Technology, Hunan Agriculture University, Changsha 410128, China;

    2Hunan Agricultural Bioengineering Research Institute, Changsha 410128, China;

    3Hunan Institute of Gerontology, Hunan Province Geriatric Hospital, Changsha 410001, China
  • Received:2011-12-02 Revised:2012-04-24 Online:2012-09-01 Published:2012-07-24
  • Contact: Yun Tian,Xiangyang Lu

Abstract: Abscisic acid (ABA), as one of the pivotal plant hormones, is essential in mediating plant growth and development and responding to biotic or abiotic stress in plants. Recent breakthroughs in screening for and confirming the ABA receptor have made great contributions to elucidating the pathways of ABA signaling transduction. Here, we offer a brief introduction of the advances in research into several candidates of ABA receptors, including ABA-binding protein/H subunit of Mg-chelatase (ABAR/CHLH), G protein-coupled receptor 2, GPCR-type G protein 1/2, and pyrabactin resistant/PYR-like/regulatory component of ABA (PYR/PYL/RCAR). We emphasize the putative ABA signaling transduction pathway of ABAR/CHLH or PYR/PYL/RCAR as a receptor. These progresses could be useful for studying ABA receptors and the pathways of ABA signaling transduction.

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