Gustatory sensilla sensitive to protein kairomones trigger host acceptance by an endoparasitoid

Bénédet Fabrice, Leroy T., Gauthier Nathalie, Thibaudeau C., Thibout Eric, Renault Sylvaine. 2002. Gustatory sensilla sensitive to protein kairomones trigger host acceptance by an endoparasitoid. Proceedings of the Royal Society B: Biological Sciences, 269 (1503) : 1879-1886.

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Résumé : Proteins isolated from the host cocoon of Acrolepiopsis assectella (Lepidoptera: Yponomeutoidea) act as kairomones for host acceptance by the endoparasitoid wasp Diadromus pulchellus Wesmael (Hymenoptera: Ichneumonidae). In this study, morphological, ultrastructural and electrophysiological studies were carried out in order to identify the contact chemoreceptive sensilla on the parasitoid antennae that perceive the protein kairomones. Three types of sensillum on the antennae of the females were found to have a chemosensory function. The receptor cell(s) of one sensillar type were shown to give a positive electrophysiological response to protein kairomones. This sensillar type is apically multiporous and female specific. Consequently, this sensillum could be the one implicated in the perception of the protein kairomone that triggers the host–acceptance behaviour of D. pulchellus females.

Classification Agris : H10 - Ravageurs des plantes
L50 - Physiologie et biochimie animales

Auteurs et affiliations

• Bénédet Fabrice, IRBI (FRA) ORCID: 0000-0001-9281-5677
• Leroy T., IRBI (FRA)
• Gauthier Nathalie, Centre de Biologie et de Gestion des Population (FRA)
• Thibaudeau C., IRBI (FRA)
• Thibout Eric, IRBI (FRA)
• Renault Sylvaine, Université François Rabelais (FRA) - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/589107/)

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