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Effect of the juvenile hormone analogue methoprene on multiplication of Spodoptera litura nucleopolyhedrovirus in the host hemolymph
Author(s): 
Pages: 343-348
Year: Issue:  4
Journal: ACTA ENTOMOLOGICA SINICA

Keyword:  斜纹夜蛾保幼激素类似物斜纹夜蛾核型多角体病毒增殖血淋巴;
Abstract: 通过研究保幼激素类似物(juvenile hormone analogues,JHA)methoprene对斜纹夜蛾核型多角体病毒(Spodoptera litura nucleopolyhedrovirus,SpltNPV)在宿主血淋巴中增殖的影响,以探明JHA促进SpltNPV增殖的初步机制,为阐明JHA促进病毒增殖提供更全面的理论依据.应用SDS-PAGE及Western blot法,分析了methoprene对SpltNPV多角体蛋白(polyhedron,POLH)在宿主斜纹夜蛾6龄幼虫血淋巴中合成的影响.结果表明:经methoprene处理后2~3天可明显促进幼虫血淋巴液中POLH的合成.在此基础上,通过荧光定量PCR检测,发现methoprene对SpltNPV在幼虫血淋巴液复制的影响主要发生在处理后的第4和第5天,该期间polh基因的拷贝数比对照显著增加,拷贝数的峰值达1.22×1010/mL.
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