Faculty of Infectious and Tropical Diseases, Department of Disease Control, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK.
J Exp Biol. 2013 Feb 1;216(Pt 3):460-9. doi: 10.1242/jeb.074930. Epub 2012 Sep 20.
The common bed bug, Cimex lectularius, feeds on the blood of mammal and bird hosts, and is a pest of global importance. Semiochemicals are chemicals involved in animal communication that may affect behaviour and/or physiology. Attractive semiochemicals that play a role in mediating bed bug behaviour could be exploited for the development of a highly effective novel monitoring device. Tracking software was used to record the response of bed bugs to volatiles from paper previously exposed to conspecific bugs in a still-air olfactometer illuminated by infrared lights, through a variety of activity variables. The effect of time of day as an extrinsic factor, and sex, stage, mating status and nutritional status as physiological factors on the response of bed bugs to the volatiles was examined. Bed bugs of both sexes and all stages responded to the volatiles from bed bug-exposed papers, showing significant attraction and orientation towards the volatile source whether they were starved or engorged. Confirmation that the physiological factors examined do not affect the response of bed bugs to the volatiles from bed bug-exposed papers provides evidence that these bed bug-derived volatiles contain aggregation cues, as semiochemicals that promote aggregation should by definition be detected by both sexes and all life stages. A device baited with such semiochemicals could play a major role in limiting the impact of the current bed bug resurgence by enabling timely detection of infestations, along with quantitative evaluation of control and effective surveillance of the geographical distribution of the pest species.
常见的臭虫，Cimex lectularius，以哺乳动物和鸟类的血液为食，是一种具有全球重要性的害虫。信息素是参与动物交流的化学物质，可能会影响行为和/或生理机能。能在介导臭虫行为方面发挥作用的有吸引力的信息素，可以被开发利用，以制造出一种非常有效的新型监测装置。跟踪软件用于记录臭虫对先前在静态气味仪中用红外线照射暴露于同种臭虫的纸张挥发物的反应，通过各种活动变量进行记录。考察了时间（作为外在因素）、性别、阶段、交配状态和营养状态等生理因素对臭虫对挥发物的反应的影响。雌雄两性和各个阶段的臭虫都对来自臭虫暴露的纸张的挥发物有反应，表现出对挥发性物质来源的显著吸引力和取向，无论它们是饥饿还是饱食。证实所检查的生理因素不会影响臭虫对来自臭虫暴露的纸张的挥发物的反应，这为这些臭虫衍生的挥发物包含聚集线索提供了证据，因为促进聚集的信息素根据定义应该被两性和所有生命阶段都检测到。这种用信息素引诱的装置可以在限制当前臭虫再次泛滥方面发挥重要作用，因为它可以及时发现虫害，对控制进行定量评估，并有效地监测害虫物种的地理分布。
