PMID: 11931256Apr 5, 2002Paper

Attractant volatiles released by female and male Triatoma infestans (Hemiptera: Reduviidae), a vector of chagas disease: chemical analysis and behavioral bioassay

Journal of Medical Entomology
Andrea FontanAlan Cork

Abstract

Volatiles emitted by male and female T infestans before and during copula were collected on Porapak-Q filters, desorbed with dichloromethane, and analyzed by gas chromotography and gas chromatography-mass spectrometry after confirmation of attractiveness in an arena bioassay. Chemical analysis confirmed the presence of (R,S) -2- and 3-methylbutan-1-ol in a 2:1 ratio; short chain acids (ethanoic to nonanoic acid); long chains acids decanoic to (Z)-9-octadecenoic acid; aliphatic aldehydes (hexanal to nonanal), benzaldehyde and dipropylsulphide from insects in copula. Electroantennographic studies conducted with a homologous series of aliphatic aldehydes on female and male T infestans showed that, for a given dose, EAG responses elicited from both sexes increased with increased chain length up to nonanal, after which EAG-activity declined. Attractiveness of non-acidic trace components identified in the volatiles were tested on male and female T. infestans, in an arena bioassay using a video tracking method. Aliphatic C6 to C10 aldehydes were tested: hexanal (1-100 microg) and heptanal (10 microg) were attractive to female T. infestans, high doses of octanal and nonanal (1-100 microg) were Unattractive to male and female T. infesta...Continue Reading

Citations

Sep 1, 2005·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Carolina E Reisenman, Claudio Lazzari
Oct 14, 2008·Journal of Chemical Ecology·Pablo Gatti LiguoriPaola Gonzalez Audino
Jan 5, 2002·Medical and Veterinary Entomology·L Cruz-LópezE D Morgan
Oct 3, 2012·PLoS Neglected Tropical Diseases·Antonieta Rojas de AriasHéctor Masuh
Sep 24, 2008·Arthropod Structure & Development·Romina B BarrozoSylvia Anton
Nov 6, 2008·Acta Tropica·Pablo G Guerenstein, Claudio R Lazzari
Dec 13, 2005·Medical and Veterinary Entomology·T G T JaensonA-K Borg-Karlson
Mar 4, 2014·Journal of Vector Ecology : Journal of the Society for Vector Ecology·Sebastián MinoliGabriel Manrique
Jan 30, 2014·Memórias do Instituto Oswaldo Cruz·Claudio Ricardo LazzariMarcelo Gustavo Lorenzo
Mar 15, 2019·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Annemarie HeidukStefan Dötterl

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