菜蛾盘绒茧蜂寄生对寄主小菜蛾幼虫丝腺的影响  

Effects of parasitism by Cotesia vestalis on the silk gland of diamondback moth,Plutella xylostella larvae

作　　者：黄芳[1] 郦卫弟[1] 时敏[2] 吕要斌[1] 陈学新[2] 

机构地区：[1]浙江省农业科学院植物保护和微生物研究所,杭州310021 [2]浙江大学昆虫科学研究所,杭州310058

出　　处：《环境昆虫学报》2014年第6期928-932,共5页Journal of Environmental Entomology

基　　金：国家重点基础研究发展计划(973计划)(2013CB127600);国家"十二五"支撑计划(2012BAD19B06);农业部公益性行业科研专项(201103021);浙江省自然科学基金(Y307040);杭州市科技计划项目(20130432B03)

摘　　要：菜蛾盘绒茧蜂Cotesia vestalis寄生对小菜蛾Plutella xylostella幼虫丝腺形态结构、丝腺内蛋白组分及含量有显著的影响。寄生后的小菜蛾幼虫的丝腺细胞不经历膨大期即开始凋亡,无法大量分泌蛋白,因此蛋白含量显著低于未寄生的小菜蛾丝腺内的蛋白,且蛋白组分也有一定程度的差异,主要是50 k Da以上的蛋白含量和种类的差别较大。Parasitism by Cotesia vestalis had significant effects on the silk gland of diamondback moth Plutella xylosteUa larva at the aspects of morphology, structure, components and contents of the secreted proteins. Cells in the silk glands of the parasitized larva could not enlarge, so the protein secretion was inhibited, which resulted in a significant decrease of protein contents compared to that of the unparasitized larva. Meanwhile, components of the protein secretions, mainly the proteins 〉 50 kDa, were significantly different between the parasitized and unparasitized larvae.

关 键 词：菜蛾盘绒茧蜂 小菜蛾 丝腺 

分 类 号：Q965[生物学—昆虫学] S476[农业科学—农业昆虫与害虫防治]