EFFECTS OF A NONOCCLUDED VIRUS OF SPODOPTERA-FRUGIPERDA (LEPIDOPTERA, NOCTUIDAE) ON THE DEVELOPMENT OF A PARASITOID, COTESIA-MARGINIVENTRIS (HYMENOPTERA, BRACONIDAE)
EFFECTS OF A NONOCCLUDED VIRUS OF SPODOPTERA-FRUGIPERDA (LEPIDOPTERA, NOCTUIDAE) ON THE DEVELOPMENT OF A PARASITOID, COTESIA-MARGINIVENTRIS (HYMENOPTERA, BRACONIDAE)
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DOI：
10.1093/ee/14.3.258
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发表时间：
1985-01-01
影响因子：
1.7
通讯作者：
MARTI, OG
中科院分区：
文献类型：
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作者：
HAMM, JJ;NORDLUNG, DA;MARTI, OG
从秋粘虫（FAW）， S. frugiperda （J.E. Smith）中分离出一种非封闭病毒（鉴定为Ascovirus），以确定其与拟寄生虫C. marginiventris （Cresson）的相容性。成虫易将病毒从感染的FAW幼虫传播到未感染的FAW幼虫。然而，寄主幼虫在寄生前或寄生过程中接种该病毒后，其后代不能完全发育。寄生后第4天接种的寄主幼虫完成发育的寄生蜂少于寄生后第5天接种的寄主幼虫和被寄生对照。死亡不是由于病毒在类寄生物发育完成之前杀死了宿主，因为感染病毒的幼虫比被寄生的对照活得更长。寄生后6 d解剖寄主幼虫时，发现病毒感染寄主体内的寄生蜂幼虫比寄生对照体内的寄生蜂幼虫少且小。
A nonoccluded virus (identified as an Ascovirus), isolated from fall armyworm (FAW), S. frugiperda (J.E. Smith), was tested to determine its compatability with the parasitoid C. marginiventris (Cresson). Adult C. marginiventris readily transmitted the virus from infected to noninfected FAW larvae. However, the progeny of the parasitoids failed to complete development in host larvae inoculated with the virus before or during parasitization. Fewer parasitoids completed development in host larvae inoculated 4 days after parasitization than in larvae inoculated 5 days after parasitization and in parasitized controls. Mortality was not due to the virus killing the host before the parasitoids could complete development, since the virus-infected larvae lived longer than the parasitized controls. Fewer and smaller parasitoid larvae were found in virus-infected hosts than in parasitized controls when host larvae were dissected 6 days after parasitization.