Volatile and contact chemicals released by Nezara viridula (Heteroptera: Pentatomidae) have a kairomonal effect on the egg parasitoid Trissolcus basalis (Hymenoptera: Scelionidae)
Volatile and contact chemicals released by Nezara viridula (Heteroptera: Pentatomidae) have a kairomonal effect on the egg parasitoid Trissolcus basalis (Hymenoptera: Scelionidae)
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DOI：
10.1006/bcon.1999.0763
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发表时间：
1999-11-01
影响因子：
4.2
通讯作者：
Wajnberg, E
中科院分区：
文献类型：
--
作者：
Colazza, S;Salerno, G;Wajnberg, E
在 Y 形管嗅觉计和开放场地条件下研究了卵寄生蜂 Trissolcus basalis (Wollaston)（膜翅目：Scelionidae）雌性对其宿主 Nezara viridula (L.)（异翅目：蝽科）挥发性和接触化学物质的反应。在 Y 管测试中，来自未交配雄性和处于产卵前状态的雌性的挥发物吸引了雌性 T. basalis，而来自寄主处女雌性的挥发物却没有。在开放的竞技场中，绿色黄蜂成虫在不同生理条件下留下的痕迹充当接触线索，诱导黄蜂在竞技场中停留更长时间并改变其行走行为的模式。然而，只有来自绿色猪笼草的接触利他素在产卵前交配的雌性中才会诱导阻止反应，其特征是斑块搜索时间和转动速率增加以及线速度降低。讨论了这些结果对寄主-寄生物关联的化学生态学意义。 (C) 1999 年学术出版社。
The responses of females of the egg parasitoid Trissolcus basalis (Wollaston) (Hymenoptera: Scelionidae) to volatile and contact chemicals from its host Nezara viridula (L.) (Heteroptera: Pentatomidae) were investigated in a Y-tube olfactometer and under open arena conditions. In the Y-tube tests, volatiles from virgin males and from females in a preovipositional state attracted T. basalis females, while volatiles from host virgin females did not. In an open arena, traces left by N. viridula adults in different physiological conditions function as contact cues inducing the wasps to remain longer in the arena and to change the pattern of their walking behavior. However, only contact kairomones from N. viridula mated females in a preovipositional condition induced an arrestment response characterized by an increase in patch searching time and turning rates and a reduction in linear speed. The chemical ecological implications of these results on this host-parasitoid association are discussed. (C) 1999 Academic Press.