Pregnanes from defensive glands of a belostomatid bug.
Pregnanes from defensive glands of a belostomatid bug.
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来自 belostomatid 昆虫的防御腺体的妊娠物。
DOI：
10.1007/bf01989425
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
Meinwald,J
中科院分区：
文献类型：
--
作者：
Lokensgard,J;Smith,RL;Eisner,T;Meinwald,J
水生隐翅虫Abedus herberti(半翅目：白口科)从其头腺分泌含有四种孕酮(脱氧皮质酮(I)、孕烯醇酮(II)、孕酮(III)和3α-羟基-孕酮-5-烯-20-酮(IV))的混合物。早先从水生甲虫(水甲科)的防御性腺体中提取的孕激素被证明对鱼类具有威慑作用。它可能特别受到来自鱼类的捕食压力。赫伯特科和迪斯克科进化出了类似的防御系统。
The aquatic bugAbedus herberti(Hemiptera: Belostomatidae) secretes a mixture containing four pregnanes (desoxycorticosterone (I), pregnenolone (II), progesterone (III), and 3α-hydroxy-pregn-5-en-20-one (IV)) from its cephalic glands. Pregnanes had previously been characterized from the defensive glands of aquatic beetles (Dytiscidae) and shown to be deterrent to fish. It may be specifically under predation pressure from fish thatA. herbertiand Dytiscidae evolved their comparable defenses.