Yang Liwen, Liu Shuangrong, Lin Rongcheng
Key Laboratory of Photobiology, Institute of Botany, the Chinese Academy of Sciences, Beijing, 100093, China.
University of Chinese Academy of Sciences, Beijing, 100049, China.
J Integr Plant Biol. 2020 Sep;62(9):1310-1326. doi: 10.1111/jipb.13001.
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.
种子休眠是植物的一种适应性特征。打破种子休眠决定了种子萌发的时间，因此对于确保植物存活和农业生产至关重要。种子休眠及随后的萌发受内部信号（主要是激素）和环境信号共同控制。在过去几年中，植物激素在调节种子休眠和萌发中的作用已被揭示。然而，我们才刚刚开始了解光信号通路如何调节种子休眠以及与内源激素的相互作用。在本综述中，我们总结了目前关于光通过调节激素代谢和信号通路来控制种子休眠的诱导、维持和解除以及种子萌发的分子机制的观点。
