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Abstract:

Adults of the Chagas disease vector Triatoma infestans Klug (Hemiptera: Reduviidae: Triatominae), possess paired exocrine glands: the metasternal and Brindley's glands. Both glands are discharged by disturbed adults, releasing an alarm pheromone that elicits an escape response of larvae. The present study analyzes the individual (or combined) effects of some of the volatiles of the whole pheromone blend released under disturbance, searching for active compounds and for possible interactions (e.g. synergism, additive effects) between them. Using an experimental arena, different doses of components emitted by disturbed adults are tested against larvae. Larvae show escape responses to some of the acids, as well as to one alcohol, but no response to ketones. This is observed with certain doses of compounds from Brindley's glands (isobutyric, butyric and acetic acid; 2-methyl-1-butanol), although the compounds tested in the present study that are produced by metasternal glands are shown to evoke random responses, suggesting that mainly Brindley's glands are involved in the alarm context. Two combinations of two individually repellent compounds (2-methyl-1-butanol with acetic or isobutyric acid) evoke escape responses, although other combinations make the individual effect disappear. A different mixture of two individually repellent compounds (butyric and isobutyric acid) evokes attraction, although these are also host odours. The potential use of the active compounds released by disturbed adults to monitor triatomine populations is discussed. © 2016 The Royal Entomological Society

Registro:

Documento: Artículo
Título:Compounds released by disturbed adults of the haematophagous bug Triatoma infestans (Hemiptera: Reduviidae): behavioural effects of single compounds and binary mixtures
Autor:Palottini, F.; Manrique, G.
Filiación:Departamento de Biodiversidad y Biología Experimental, Laboratorio de Fisiología de Insectos, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, IBBEA, CONICET-UBA, Ciudad Autónoma de Buenos Aires, Argentina
Palabras clave:Alarm pheromone; Brindley's glands; Chagas disease; Triatominae; volatiles; adult; alcohol; Chagas disease; disease vector; insect; larva; odor; organic compound; pheromone; Hemiptera; Reduviidae; Triatoma infestans; Triatominae
Año:2016
Volumen:41
Número:3
Página de inicio:234
Página de fin:240
DOI: http://dx.doi.org/10.1111/phen.12147
Título revista:Physiological Entomology
Título revista abreviado:Physiol.Entomol.
ISSN:03076962
CODEN:PENTD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03076962_v41_n3_p234_Palottini

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Citas:

---------- APA ----------
Palottini, F. & Manrique, G. (2016) . Compounds released by disturbed adults of the haematophagous bug Triatoma infestans (Hemiptera: Reduviidae): behavioural effects of single compounds and binary mixtures. Physiological Entomology, 41(3), 234-240.
http://dx.doi.org/10.1111/phen.12147
---------- CHICAGO ----------
Palottini, F., Manrique, G. "Compounds released by disturbed adults of the haematophagous bug Triatoma infestans (Hemiptera: Reduviidae): behavioural effects of single compounds and binary mixtures" . Physiological Entomology 41, no. 3 (2016) : 234-240.
http://dx.doi.org/10.1111/phen.12147
---------- MLA ----------
Palottini, F., Manrique, G. "Compounds released by disturbed adults of the haematophagous bug Triatoma infestans (Hemiptera: Reduviidae): behavioural effects of single compounds and binary mixtures" . Physiological Entomology, vol. 41, no. 3, 2016, pp. 234-240.
http://dx.doi.org/10.1111/phen.12147
---------- VANCOUVER ----------
Palottini, F., Manrique, G. Compounds released by disturbed adults of the haematophagous bug Triatoma infestans (Hemiptera: Reduviidae): behavioural effects of single compounds and binary mixtures. Physiol.Entomol. 2016;41(3):234-240.
http://dx.doi.org/10.1111/phen.12147