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水稻条纹病毒主要基因在Sf 9细胞系中的定位及其功能研究

发表时间:2015-05-15  浏览量:2010  下载量:555
全部作者: 陈红燕,魏太云,贾东升
作者单位: 福建农林大学植物病毒研究所,福建省植物病毒学重点实验室
摘 要: 通过免疫荧光标记技术对水稻条纹病毒(rice stripe virus,RSV)编码蛋白在草地贪夜蛾(Spodoptera frugiperda)细胞Sf 9中的定位进行分析,共聚焦显微镜下观察到NS2蛋白聚集在细胞膜上,NSvc2的N端部分蛋白(NSvc2-N)以囊泡状结构分布在细胞质,NSvc3蛋白形成颗粒状的内含体聚集在细胞质中,NS4蛋白弥散分布在整个细胞中,NSvc4蛋白形成伸出细胞表面的丝状结构。根据RSV编码蛋白在昆虫细胞内的定位可以初步推测其在介体昆虫体内具备的功能。
关 键 词: 植物病理学;水稻条纹病毒;草地贪夜蛾细胞;亚细胞定位
Title: Subcellular localization and function analysis of proteins encoded by rice stripe virus in Sf 9 cells
Author: CHEN Hongyan,WEI Taiyun,JIA Dongsheng
Organization: Key Laboratory of Plant Virology of Fujian Province, Institute of Plant Virology, Fujian Agriculture and Forestry University
Abstract: In vivo subcellular localization of the proteins encoded by rice stripe virus (RSV), a tenuivirus, in Sf 9 of Spodoptera frugiperda insect cells was analyzed by immunofluorescence microscopy. Our results show that NS2 was associated with the plasma membrane. Partial proteins from N-end (NSvc2-N) localized to the vesicle-like inclusions in the cytoplasm. NSvc3, a ribonucleoprotein, was aggregated to form punctate inclusions in the cytoplasm. NS4 was diffusely distributed in the cytoplasm. NSvc4 formed filament-like inclusions which emerged from the cell surface. The subcellular localization of proteins encoded by RSV in insect cells reveals their putative functions in insect vector.
Key words: phytopathology; rice stripe virus; Spodoptera frugiperda cells; subcellular localization
发表期数: 2015年5月第9期
引用格式: 陈红燕,魏太云,贾东升. 水稻条纹病毒主要基因在Sf 9细胞系中的定位及其功能研究[J]. 中国科技论文在线精品论文,2015,8(9):885-891.
 
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