J Integr Plant Biol ›› 2020, Vol. 62 ›› Issue (9): 1310-1326.DOI: 10.1111/jipb.13001

• Invited Expert Review • Previous Articles     Next Articles

The role of light in regulating seed dormancy and germination

Liwen Yang1 , Shuangrong Liu1,2 and Rongcheng Lin1,2,3*   

  1. 1 Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
    2 University of Chinese Academy of Sciences, Beijing 100049, China
    3 CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Beijing 100093, China

    *Correspondence: rclin@ibcas.ac.cn
  • Received:2020-05-13 Accepted:2020-07-29 Online:2020-09-01 Published:2020-07-30

Abstract:

Seed dormancy is an adaptive trait in plants. Breaking seed dormancy determines the timing of germination and is, thereby essential for ensuring plant survival and agricultural production. Seed dormancy and the subsequent germination are controlled by both internal cues (mainly hormones) and environmental signals. In the past few years, the roles of plant hormones in regulating seed dormancy and germination have been uncovered. However, we are only beginning to understand how light signaling pathways modulate seed dormancy and interaction with endogenous hormones. In this review, we summarize current views of the molecular mechanisms by which light controls the induction, maintenance and release of seed dormancy, as well as seed germination, by regulating hormone metabolism and signaling pathways.

This review summarizes current views of the molecular mechanisms by which light controls the induction, maintenance, and release of seed dormancy, as well as seed germination, by regulating hormone metabolism and signaling pathways.

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