幼虫黄粉虫（鞘翅目：拟步行甲科）粪便中挥发性脂肪酸对幼虫同种的驱避作用。

Repellency of volatile fatty acids present in frass of larval yellow mealworms,Tenebrio molitor L. (Coleoptera: Tenebrionidae), to larval conspecifics.

机构信息

Departments of Entomology, Macdonald College of McGill University, 21,111 Lakeshore Road, H9X ICO, Ste-Anne-de-Bellevue, Quebec, Canada.

出版信息

J Chem Ecol. 1990 Feb;16(2):585-93. doi: 10.1007/BF01021788.

DOI:10.1007/BF01021788

PMID:24263513

Abstract

Frass of late-instar larvae ofTenebrio molitor L. contained 0.0889 g of butyric acid, 0.0279 g of propionic acid, and 0.0175 g of valeric acid per 100 g. Grouped larvae were strongly repelled by butyric acid at the 10(-1) M concentration. Lower concentrations of butyric acid were less repellent. Valeric acid was repellent at 10(-1) M to 10(-3) M concentrations, below which no tested concentration, including one identical to that occurring in prepared solutions of frass found to be attractive, displayed any effect. Propionic acid was repellent at the concentration in prepared solutions of frass, which were strongly attractive. Concentrations of 10(-1) M, 10(-3) M, and 10(-4) M propionic acid were also found to be repellent. The implications of the repellency of these compounds to groups of mealworm larvae are discussed, with particular reference to the interaction between these frass components and others that have already been studied.

摘要

黄粉虫后期幼虫的粪便中每 100 克含有 0.0889 克丁酸、0.0279 克丙酸和 0.0175 克缬草酸。丁酸在 10（-1）M 的浓度下强烈排斥成群的幼虫。较低浓度的丁酸则不太有排斥性。缬草酸在 10（-1）M 到 10（-3）M 的浓度下具有排斥性，低于该浓度的任何测试浓度，包括与在准备好的粪便溶液中发现的相同浓度，均没有显示出任何吸引力。丙酸在粪便的准备溶液中的浓度具有排斥性，但同时又具有很强的吸引力。10（-1）M、10（-3）M 和 10（-4）M 的丙酸浓度也被发现具有排斥性。这些化合物对黄粉虫幼虫群的排斥性的影响进行了讨论，特别提到了这些粪便成分与已经研究过的其他成分之间的相互作用。