« Previous AbstractAntimicrobial activity of sub- and supercritical CO2 extracts of the green alga Dunaliella salina    Next AbstractAir pollution exposure and preeclampsia among US women with and without asthma »

J Vector Borne Dis

Title:		Aggregation responses of Cimex hemipterus F. to semiochemicals identified from their excreta
Author(s):		Mendki MJ; Ganesan K; Parashar BD; Sukumaran D; Prakash S;
Address:		"Vector Management Division, Defence Research and Development Establishment, Gwalior, India"
Journal Title:		J Vector Borne Dis
Year:		2014
Volume:		51
Issue:		3
Page Number:		224 - 229
DOI:
ISSN/ISBN:		0972-9062 (Print) 0972-9062 (Linking)
Abstract:		"BACKGROUND & OBJECTIVES: Bedbug Cimex hemipterus lives in cracks and crevices, and shows aggregation activity in the harbourage containing its fecal matter. Limited information is available on the chemicals influencing this aggregation behaviour in C. hemipterus. Possible components responsible for aggregation, if identified and evaluated can be helpful in designing bedbug management. METHODS: Study on the isolation and identification of chemicals from the excreta extract responsible for aggregation has been carried by GC-MS. The compounds identified were evaluated at different concentrations to C. hemipterus and their attraction index was determined. RESULTS: The GC-MS analysis of the excreta extract resulted in identification of 33 different types of semiochemicals such as esters, carboxylic acids, alcohols, aldehydes, ketones and other hydrocarbons. Among these 33 compounds of various groups, the carboxylic acid (E)-2-hexenoic acid and the aldehyde (E)-2-hexenal found to elicit highest positive aggregation behavioural response in all the stages followed by hexenal. INTERPRETATION & CONCLUSION: The fecal matter influence the aggregation behaviour in C. hemipterus. (E)-2-hexenoic acid, hexanoic acid, (E)-2-hexenal and hexanal found to exhibit aggregation in various stages of bedbug life cycle. These chemical components can be further exploited for designing and development tool for management of bedbugs"
Keywords:		Animals Bedbugs/chemistry/*drug effects/*physiology Feces/*chemistry Female Gas Chromatography-Mass Spectrometry Male Pheromones/isolation & purification/*metabolism;
Notes:		"MedlineMendki, Murlidhar J Ganesan, K Parashar, B D Sukumaran, D Prakash, Shri eng India 2014/09/26 J Vector Borne Dis. 2014 Sep; 51(3):224-9"