摘要
本文介绍了植物热激蛋白的产生、分布和分类。着重论述了热激反应的特点、植物热激蛋白的功能。
All organism respond to elevated temperatures and many other stresses with the production of a defined set of proteins called heat shock proteins (HSPs). The basic characteristics of HSPs are highly conserved, diversed and the heat shock response is temporal. Although HSPs were first characterized because their expression increased in response to elevated temperature, some HSPs are found at sighificant levels in other stresses, in normal, nonstressed cells and produced at particular stages of cell cycle or during development in the absence of stresses .The findings indicated that HSPs have many functions, including molecular chaperones, thermotolerance, chilling tolerance, a special role in the development of organisms and other biochemical functions in cell metabolism. The association of HSF with HSP70 may be important in the regulation of heat shock gene transcriptional activity. The expression of heat shock gene is self regulated by HSP.
出处
《植物学通报》
CSCD
1999年第5期530-536,共7页
Chinese Bulletin of Botany
基金
广东省自然科学基金
国家教育部留学回国人员科研资金
关键词
热激蛋白
热激基因
表达
调控
功能
植物
Heat shock proteins, Heat shock gene, Regulation and expression, Functions
