荨麻蛱蝶核型多角体病毒在病虫脂肪体中的形态发生  

Morphogenesis of Vanessa urticae Nuclear Polyhedrosis Virus in Infected Fat Body Cells

作　　者：杨向明[1] 李维琪[1] 

机构地区：[1]中国科学院新疆化学研究所,乌鲁木齐830011

出　　处：《病毒学杂志》1991年第2期151-153,共3页

摘　　要：本文叙述了一种在高山草原地区较低温度下感染荨麻蛱蝶(Vanessa urticae)的核型多角体病毒的形态发生过程。荨麻蛱蝶幼虫经其病毒多角体感染5日后出现明显变化:细胞核膨大,核仁消失,核内出现清晰区及病毒发生基质。在病毒发生基质的周围,核衣壳大量产生。核衣壳是从这些病毒发生基质四周的模样结构碎片上获得套膜,装配成病毒粒子。随后病毒粒子逐渐进入多角体蛋白中,形成了成熟的单粒包埋型的多角体。观察结果表明,在较低温度下生长的荨麻蛱蝶NPV与在常温下生长的其它NPV有着类似的形态发生过程。We isolated a strain of Vu NPV. The present study primarily detailed some changes during the virus infection in larval fat body cells, five days after infection, cytopathological alteration appeared,and the virus has distinguished special structure and process of replication At early stage of infection, the nucleus enlarged and the nucleolus dispersed, the nucleus contained grannular matters resulting in a 'cleared' area, and the virogenic stromate appeared. Near the virogenic stroma large amount of road nucleocapsids aggregated nucleocapsids acquired viral envelopes from the membranous fragment surrounding the virogenic stroma After the virion acquired envolope, they were embeded in polyhedron. All the processes of those virus carried out in normal temperature.

关 键 词：昆虫病毒 荨麻蛱蝶 VuNPV 脂肪体 

分 类 号：S476.13[农业科学—农业昆虫与害虫防治]