GEOGRAPHICAL VARIATION IN RESISTANCE OF THE PARASITOID ASOBARA-TABIDA AGAINST ENCAPSULATION BY DROSOPHILA-MELANOGASTER LARVAE - THE MECHANISM EXPLORED
GEOGRAPHICAL VARIATION IN RESISTANCE OF THE PARASITOID ASOBARA-TABIDA AGAINST ENCAPSULATION BY DROSOPHILA-MELANOGASTER LARVAE - THE MECHANISM EXPLORED
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DOI：
10.1111/j.1365-3032.1994.tb01068.x
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发表时间：
1994-03-01
影响因子：
1.5
通讯作者：
VANALPHEN, JJM
中科院分区：
文献类型：
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作者：
KRAAIJEVELD, AR;VANALPHEN, JJM
茧蜂Asobara tabida Nees在发酵底物中攻击几种果蝇的幼虫。西北部和中欧种群的寄生蜂主要攻击D.subobscura柯林。欧洲南部寄生蜂主要攻击黑腹果蝇Meigen。这最后一个物种的幼虫可以保护自己免受寄生虫通过封装寄生卵。来自南欧种群的寄生虫比他们的西北部和中欧同种更能抵抗卵的包囊。南欧拟寄生蜂的卵似乎有一个“粘性”的卵绒毛膜。由于这种“粘性”，卵嵌入宿主组织中，在那里它们没有完全被宿主的血细胞覆盖。这最多导致卵的部分包囊。寄生虫幼虫可以从部分封闭的包囊中逃脱。
The braconid parasitoid Asobara tabida Nees attacks larvae of several Drosophila species in fermenting substrates. Northwestern and central European populations of the parasitoid attack mainly D.subobscura Collin. Southern European parasitoids attack mainly D.melanogaster Meigen. Larvae of this last species can defend themselves against parasitoids by encapsulating the parasitoid egg. Parasitoids from southern European populations are better able to resist encapsulation of their eggs than their northwestern and central European conspecifics. The eggs of southern European parasitoids appear to have a 'sticky' egg chorion. As a result of this 'stickiness' the eggs become embedded in host tissue where they are not completely covered by the host's blood cells. This leads to, at most, partial encapsulation of the egg. Parasitoid larvae can escape from partially closed capsules.