摘要
季节性休眠是多年生植物在生态和进化上的一种"权衡"机制,也是植物界多样性生存策略的组成部分。林木季节性休眠的机理研究已经在多个物种中开展,涉及生理学、细胞学和分子生物学等众多领域。在林木中发现的CO/FT调控机制,揭示了植物"休眠"的本质。一旦生长停止,植物休眠便进入程序性阶段,并最终导致分生组织细胞对生长信号响应能力的完全丧失。研究表明,林木在响应环境信号中止或恢复生长发育的过程中存在复杂的分子调控网络。本文着重阐述了多年生木本植物在季节性休眠的诱导、建立和解除过程中的分子调控机理。
Seasonal dormancy, one of the measure mechanism for perennial plants in ecology and evolution, is a component of the multiple survival strategies of vegetable kingdom. Research on the mechanism of seasonal dormancy in perennial woody plant has been carried out in several species, referring to numerous fields including physiology, cytology, molecular biology and so on. Regulatory mechanism of CO/FT was found in forest trees which revealed the essence of plant dormancy. Once plant growth has stopped, its dormancy would be get into a procedure stage, and results in the complete inability of the cells to respond to growth signals in generating tissue. Investigations show that there was a complicate molecular regulatory network existence in the stage of woods response to environmental signals which to stop or resume growth. In this article, we focus on expound the molecular regulatory mechanism of the inducement, establishment and release of seasonal dormancy in perennial woody plant.
出处
《分子植物育种》
CAS
CSCD
2009年第5期985-989,共5页
Molecular Plant Breeding
基金
国家自然科学基金项目(30177165)
江苏省高新技术项目(BG2007314)共同资助
关键词
多年生木本植物
季节性休眠
分子机制
Perennial woody plant, Seasonal dormancy, Molecular mechanism
