多年生木本植物季节性休眠的分子机制.pdfVIP

分子植物育种，2009 年，第7 卷，第5 期，第985-989 页 Molecular Plant Breeding, 2009, Vol.7, No.5, 985-989 专题介绍 Review 多年生木本植物季节性休眠的分子机制 姚骅珊 张博 诸葛强* 南京林业大学, 林木遗传与生物技术省部共建教育部重点实验室, 南京, 210037 * 通讯作者, qzhuge@ 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。 关键词 多年生木本植物, 季节性休眠, 分子机制 Molecular Mechanism of Seasonal Dormancy in Perennial Woody Plant Yao Huashan Zhang Bo Zhuge Qiang * Key Laboratory of Forest Genetics Biotechnology, Ministry of Education, Nanjing Forestry University, Nanjing, 210037 * Corresponding author, qzhuge@ DOI: 10.3969/mpb.007.000985 Abstract 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 dor- mancy in perennial woody plant has been carried out in several species, referring to numerous fields including physi- ology, cytology, molecular biology and so on. Regulatory mechanism of CO/FT was found in forest trees which re- vealed 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 environ- mental signals which to stop or resume growth. In this article, we focus on expound the molecular regulatory mecha- nism of the inducement, establishment and release of seasonal dormancy in perennial woody plant. Keywords Perennial woody plant, Seasonal dormancy, Molecular mechanism 季节性休眠是多年生木本植物在生态和进化上 眠，如顶芽的休眠。随着对休眠本质研究的深入， 的一种“权衡”机制，也是植物界多样性生存策略的 Rohde 等(2007a)将休眠定义为：在适宜的生长条件 组成部分。休眠最常指的是“缺乏可见的包括分生组 下，