Chinese Bulletin of Botany ›› 2018, Vol. 53 ›› Issue (4): 542-555.DOI: 10.11983/CBB18080

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Molecular Mechanism of Abscisic Acid Regulation During Seed Dormancy and Germination

Wu Jinghui, Xie Chuping, Tian Changen, Zhou Yuping*()   

  1. Guangzhou Key Laboratory for Functional Study on Stress-resistant Genes in Plants, School of Life Sciences, Guangzhou University, Guangzhou 510006, China
  • Received:2018-03-30 Accepted:2018-05-02 Online:2018-07-01 Published:2018-09-11
  • Contact: Zhou Yuping
  • About author:† These authors contributed equally to this paper

Abstract: Abscisic acid (ABA) acts as a major phytohormone in regulating seed dormancy and germination. Endogenous ABA level in the seed and embryo sensitivity to ABA jointly regulate the seed dormancy and germination processes, ensuring that the dormant seed can maintain self-reproductive ability under adverse situations and germinate under optimal conditions. A number of key genes are involved in regulating the ABA metabolism and signaling transduction pathway, and these genes accurately control the processes of embryogenesis, seed maturation, dormancy, and germination via a complicated regulation network. In this paper, we review the latest research in the molecular mechanism of ABA-regulated seed dormancy and germination and pinpoint prospects for future research.

Key words: abscisic acid, seed dormancy, seed germination