Comparative headspace analysis of cabbage plants damaged by two species of Pieris caterpillars: consequences for in‐flight host location by Cotesia parasitoids
Comparative headspace analysis of cabbage plants damaged by two species of Pieris caterpillars: consequences for in‐flight host location by Cotesia parasitoids
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两种菜粉蝶毛虫损害的卷心菜植株的顶空比较分析：拟寄生蜂对飞行中寄主位置的影响
DOI：
10.1111/j.1570-7458.1994.tb01853.x
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
A. Groot
中科院分区：
文献类型：
--
作者：
A. Blaakmeer;J. Geervliet;J. Loon;M. Posthumus;T. A. Beek;A. Groot
顶空组成，收集自完整的甘蓝植物和被菜粉蝶侵染的甘蓝植物。或P. raisolL.（鳞翅目：粉蝶科）第一龄幼虫，通过GC-MS测定。在完整植物的顶空中鉴定出21种挥发物。在被甘蓝夜蛾幼虫侵染的植物的顶部空间中鉴定出22种挥发物，其中2种，Z-3-己烯基丁酸酯和Z-3-己烯基异戊酸酯，在完整或甘蓝夜蛾受损植物的顶部空间中未检测到。在后者的顶空中，鉴定了21种化合物，所有这些化合物也是由完整的植物产生的。没有显着的数量差异，被发现一个或其他毛虫物种损害的植物的顶部空间组成。乙酸己酯、乙酸顺-3-己烯酯、月桂烯、桧烯和1，8-桉叶素在对顶空分布的贡献方面显示了完整和毛虫受损植物之间的主要差异。内寄生蜂Cotesia glomerata L.被B散发的挥发物吸引甘蓝受甘蓝疫霉1龄幼虫危害。C.红花属，一个专门的幼虫内寄生蜂的P. raidarus，被吸引的挥发物释放的B。甘蓝-油菜植物-宿主复合体这表明，保持在顶空收集条件下的甘蓝植物产生的吸引力的挥发物的两种寄生蜂。
Headspace composition, collected from intact cabbage plants and cabbage plants infested with either Pieris brassicae L. or P. rapae L. (Lepidoptera: Pieridae) first instar larvae, was determined by GC‐MS. Twenty‐one volatiles were identified in the headspace of intact plants. Twenty‐two volatiles were identified in the headspace of plants infested by P. brassicae larvae, 2 of which, Z‐3‐hexenyl butyrate and Z‐3‐hexenyl isovalerate, were not detected in the headspace of either intact or P. rapae damaged plants. In the headspace of the latter, 21 compounds were identified, all of which were also produced by intact plants. No significant quantitative differences were found between headspace composition of the plants damaged by one or the other caterpillar species. Major differences between intact and caterpillar‐damaged plants in contribution to the headspace profile were revealed for hexyl acetate, Z‐3‐hexenyl acetate, myrcene, sabinene and 1, 8‐cineole. The larval endoparasitoid Cotesia glomerata L. was attracted by the volatiles emanating from B. oleracea damaged by P. brassicae first instar larvae. C. rubecula L., a specialized larval endoparasitoids of P. rapae, was attracted by the volatiles released from the B. oleracea ‐ P. rapae plant‐host complex. This shows that cabbage plants kept under the conditions of headspace collection produce attractive volatiles for both parasitoids.