植物病毒沉默抑制因子研究进展  

Advances in the Suppressors of Plant Viruses Encoded

作　　者：王法军[1] 梁越[1] 张飞云[1] 

机构地区：[1]首都师范大学生命科学学院,北京100048

出　　处：《生物技术通报》2009年第2期1-5,共5页Biotechnology Bulletin

基　　金：国家自然科学基金面上项目(30571010)

摘　　要：RNA沉默是广泛存在于真菌﹑动物和植物中的一种特异序列降解机制。在植物中,RNA沉默是一种抵抗外界植物病毒入侵的自然机制。但是,植物病毒通常也会采取编码沉默抑制因子的相应机制来抵抗基因沉默,以便能够入侵植物。论述了主要沉默抑制因子的机制﹑特点和相关确认沉默抑制因子实验,并对沉默抑制因子的研究前景进行了展望。RNA silencing is a sequence-specific degradation mechanism that has been found in fungi,animals and plants. In plants,RNA silencing exists as a natural defense mechanism against plant viruses. As a result,the plant viruses have adapted mechanisms by encoding a protein called RNA silencing suppressor to infect plants. This article focused on the mechanisms,characteristics,and associated assays used to identify these proteins,and the prospects of those suppressors were also discussed.

关 键 词：RNA沉默 植物病毒 沉默抑制因子 

分 类 号：S432.41[农业科学—植物病理学]