Research progress on molecular mechanisms of seed dormancy and germination regulated by plant hormones

doi:10.3969/j.issn.1004-1524.2023.06.25

Acta Agriculturae Zhejiangensis ›› 2023, Vol. 35 ›› Issue (6): 1485-1496.DOI: 10.3969/j.issn.1004-1524.2023.06.25

• Review • Previous Articles

Research progress on molecular mechanisms of seed dormancy and germination regulated by plant hormones

XIN Xiaoyue^a(), LIU Peng^b^,^*()

a. Jiangsu Key Laboratory of Crop Genetics and Physiology, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Agricultural College
b. Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou 225009, Jiangsu, China

Received:2022-07-22 Online:2023-06-25 Published:2023-07-04

Abstract

Abstract:

Endogenous phytohormones and external environmental signals precisely regulate the processes of seed dormancy and germination, endogenous hormones, such as abscisic acid (ABA), gibberellins (GA), auxin, etc. play important roles in these processes, among which ABA and GA are the primary hormones, ABA is a major inducer and protector of seed dormancy, whereas GA breaks dormancy and stimulates seed germination. In this review, we summarize the emerging findings concerning seed dormancy and germination controlling by phytohormones. We describe the regulatory roles of the changes of endogenous hormone levels and components involved in phytohormone metabolism (biosynthesis and catabolism) and signaling cascades during these processes. We also discuss molecular mechanisms of the crosstalk of diverse hormonal signals in seed dormancy and germination. The regulatory mechanisms would provide references for crop yield improvement and quality improvement.

Key words: seed dormancy, seed germination, hormone, molecular mechanism

CLC Number:

Q945.3

XIN Xiaoyue, LIU Peng. Research progress on molecular mechanisms of seed dormancy and germination regulated by plant hormones[J]. Acta Agriculturae Zhejiangensis, 2023, 35(6): 1485-1496.

Figures/Tables 1

References 110

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Research progress on molecular mechanisms of seed dormancy and germination regulated by plant hormones

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