斜纹夜蛾Ephestia kuehniella zeller 产生的 2-酰基环己烷-1,3 二酮的信息活性，诱使寄生蜂 Bracon hebetor（say）产生搜索行为。

Kairomonal activities of 2-acylcyclohexane-1,3 diones produced byEphestia kuehniella zeller in eliciting searching behavior by the parasitoidBracon hebetor (say).

机构信息

Department of Entomology, University of Wisconsin-Madison, 53706, Madison, Wisconsin.

出版信息

J Chem Ecol. 1989 May;15(5):1491-500. doi: 10.1007/BF01012378.

PMID:24272093

Abstract

2-Acylcyclohexane-1,3-diones produced in the mandibular glands ofEphestia kuehniella Zeller (Lepidoptera: Pyralidae) fifth instars acted as arrestment and host-trail following kairomones for the parasitoid,Bracon hebetor (Say) (Hymenoptera: Braconidae). The behavioral response of the parasitoids to the kairomone varied with kairomone concentration and distribution. However, only small differences in activity were noted for the different mandibular gland components.B. hebetor females that encountered filter paper patches impregnated with the kairomone exhibited antennation and probing behavior. Females followed trails formed with 2-[(Z,E)12,14-hexadecadienoyl]cyclohexane-1,3-dione in the same manner exhibited with host-made trails. At concentrations of 1.0 μg/mm and above, trail following was interrupted by frequent probing.

摘要

下颚腺分泌的 2-酰基环己烷-1,3-二酮（2-Acylcyclohexane-1,3-diones），是Ephestia kuehniella Zeller（鳞翅目：螟蛾科）五龄幼虫产生的报警信息素和寄主追踪信息素，对寄生蜂 Bracon hebetor（Say）（膜翅目：长尾小蜂科）具有引诱作用。寄生蜂对信息素的行为反应随信息素浓度和分布而变化。然而，下颚腺不同成分的活性差异很小。遇到用信息素浸渍的滤纸贴片的 B. hebetor 雌蜂会表现出触角和探查行为。雌蜂以与寄主形成的相同方式跟随由 2-[(Z,E)12,14-十六碳二烯酰基]环己烷-1,3-二酮形成的踪迹。在浓度为 1.0μg/mm 及以上时，频繁的探查会中断对踪迹的跟随。