植物转基因沉默与病毒抗性  

Plant Gene Silencing and Virus Resistance

作　　者：孟祥兵[1] 田玉安[2] 王秀芳[1] 王爱菊[1] 

机构地区：[1]山东农业大学生命科学学院植物抗病毒基因工程实验室,中国山东泰安271018 [2]阳谷县农业局,中国山东阳谷225301

出　　处：《生命科学研究》2001年第z1期141-145,共5页Life Science Research

基　　金：国家自然科学基金资助 ( 39970 485 )

摘　　要：对植物基因沉默的机制及其在植物抗病毒基因工程中的应用作了综述 .植物转基因沉默是转基因植株中普遍发生的一种现象 ,引起植物转基因沉默的原因是多方面的 ,但主要涉及转录水平的基因沉默和转录后水平的基因沉默 .Transgenic silencing in plants has become one of the most intriguing targets for genie engineering in recent years. Two types of homology dependent gene silencing are involved: transcriptional gene silence and post transcriptional gene silence and many similarities were found in the gene silencing and the plant virus resistance. Researches of the forms and mechanisms of gene silencing are very important for the development of plant transgenic engineering in both basic area and application area.The gene silencing mechanisms and its application in plant gene engineering of virus resistance are reviewed.

关 键 词：植物基因沉默 DNA甲基化 共抑制 植物病毒抗性 

分 类 号：Q943.2[生物学—植物学]