J Integr Plant Biol. ›› 2020, Vol. 62 ›› Issue (1): 25-54.DOI: 10.1111/jipb.12899

Special Issue: Hormone signaling

• Invited Expert Reviews For Plant Research Progress • Previous Articles     Next Articles

Abscisic acid dynamics, signaling, and functions in plants

Kong Chen1,2, Guo-Jun Li1,2, Ray A. Bressan3, Chun-Peng Song4, Jian-Kang Zhu1,3 and Yang Zhao1,4*   

  1. 1Shanghai Center for Plant Stress Biology and CAS Center of Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
    2University of Chinese Academy of Sciences, Beijing 100049, China
    3Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN 47907, USA
    4State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng 475001, China

    Email: Yang Zhao (zhaoyang@sibs.ac.cn)
  • Received:2019-12-03 Accepted:2019-12-16 Online:2019-12-18 Published:2020-01-01


Abscisic acid (ABA) is an important phytohormone regulating plant growth, development, and stress responses. It has an essential role in multiple physiological processes of plants, such as stomatal closure, cuticular wax accumulation, leaf senescence, bud dormancy, seed germination, osmotic regulation, and growth inhibition among many others. Abscisic acid controls downstream responses to abiotic and biotic environmental changes through both transcriptional and posttranscriptional mechanisms. During the past 20 years, ABA biosynthesis and many of its signaling pathways have been well characterized. Here we review the dynamics of ABA metabolic pools and signaling that affects many of its physiological functions.

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