光信号和低温调控植物休眠研究进展

Advances in plant dormancy regulation by light and low temperature

休眠是高等植物通过暂停生长发育而在不利条件下存活的策略,主要由遗传和环境因素控制,对植物生长发育具有重要意义。植物响应季节变化的2个主要环境信号是光周期和温度。本文采用文献综述法,追踪国内外最新相关研究结果进行分析。系统梳理了秋冬季光信号和低温在植物年生长周期的时间调节中起到的关键作用,阐明了植物种间和种内因基因表达、蛋白互作及转录后修饰等途径建立起的特异性休眠机制及休眠机制中存在的巨大差异。综述了植物休眠领域研究存在的主要问题并展望了未来研究重点,可为揭示秋冬光信号和低温条件下的植物休眠机制提供参考。

Dormancy is a strategy in which higher plants survive under adverse conditions by suspending growth and development.It is mainly controlled by genetic and environmental factors.It has a great influence on the growth and development of plants.The two main environmental signals that plants respond to seasonal changes are photoperiod and temperature.By the literature summary,the latest research progress at home and abroad were analyzed.This study systematically sorted out the key role of the light and low temperature signals in autumn winter and the specific dormancy mechanism between plant interspecific and intraspecific established through gene expression,protein interaction and post-transcriptional modification,which could explain the huge differences of the spectfic dormancy mechanism.This study pointed out the main problems in the current research field and prospected the future research focus,hoping to provide a reference for further revealing the mechanism of plant dormancy under light signal in autumn winter and low temperature conditions.