植物隐花色素结构与功能研究进展  

Advances in the Structure and Function of Cryptochrome in Plant

作　　者：朱春利[1] 张桂荣[1] 蔡爱军[1] 杜金友[1] 

机构地区：[1]河北科技师范学院生命科学系,秦皇岛066600

出　　处：《基因组学与应用生物学》2009年第1期174-178,共5页Genomics and Applied Biology

基　　金：河北省自然基金(303451);河北科技师范学院博士基金资助

摘　　要：隐花色素是植物感受外界环境变化的重要光受体之一,对蓝光和近紫外线非常敏感。近年来随着研究的逐步深入,已知其广泛存在于动植物中。隐花色素为黄素类蛋白,在蓝光和近紫外线下能够抑制植物胚轴、胚芽鞘等伸长,调控植物开花时间;而且对生物钟及气孔开放也起到调节作用,近来还发现隐花色素在感知磁场、细胞凋亡等方面有调节作用。本文综述了隐花色素的分子结构、它所包含的结构域和相应功能以及植物中隐花色素基因家族的成员组成与进化关系,重点在分子水平上介绍了隐花色素的生理功能与作用机制。Cryptochrome is one of the important receptors in the plants responding to environmental signals, sensing to blue light and UV-A. In the recent years, profound studies have been carried around the cryptochrome. Cryptochrome was not only in plants, but also in animals. Cryptochrome which was flavin-type protein played an important role in inhibition hypocotyl or coleoptile elongation in blue light and UV-A, and in regulation flowering time, circadian clocks and stomatal opening. The function of cryptochrome in magnetoreception, execution of programmed cell death has been found lately. This paper summarized molecular structure of cryptochrome, its domain and function, and the member and relation in evolution ofphotolyase/cryptochrome family. Physiological function and mechanism of cryptochrome in molecular level were reviewed especially.

关 键 词：植物 隐花色素 结构 功能 

分 类 号：Q946[生物学—植物学]