The Pupal Parasitoid Trichopria drosophilae Is Attracted to the Same Yeast Volatiles as Its Adult Host
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Autor/a
Đurović, Gordana
Van Neerbos, Francine A.C.
Bossaert, Sofie
Herrera-Malaver, Beatriz
Steensels, Jan
Arnó, Judit
Wäckers, Felix
Sobhy, Islam S.
Verstrepen, Kevin J.
Jacquemyn, Hans
Lievens, Bart
Fecha de publicación
2021-07-16ISSN
0098-0331
Resumen
There is increasing evidence that microorganisms, particularly fungi and bacteria, emit volatile compounds that mediate the foraging behaviour of insects and therefore have the potential to affect key ecological relationships. However, to what extent microbial volatiles affect the olfactory response of insects across different trophic levels remains unclear. Adult parasitoids use a variety of chemical stimuli to locate potential hosts, including those emitted by the host’s habitat, the host itself, and microorganisms associated with the host. Given the great capacity of parasitoids to utilize and learn odours to increase foraging success, parasitoids of eggs, larvae, or pupae may respond to the same volatiles the adult stage of their hosts use when locating their resources, but compelling evidence is still scarce. In this study, using Saccharomyces cerevisiae we show that Trichopria drosophilae, a pupal parasitoid of Drosophila species, is attracted to the same yeast volatiles as their hosts in the adult stage, i.e. acetate esters. Parasitoids significantly preferred the odour of S. cerevisiae over the blank medium in a Y-tube olfactometer. Deletion of the yeast ATF1 gene, encoding a key acetate ester synthase, decreased attraction of T. drosophilae, while the addition of synthetic acetate esters to the fermentation medium restored parasitoid attraction. Bioassays with individual compounds revealed that the esters alone were not as attractive as the volatile blend of S. cerevisiae, suggesting that other volatile compounds also contribute to the attraction of T. drosophilae. Altogether, our results indicate that pupal parasitoids respond to the same volatiles as the adult stage of their hosts, which may aid them in locating oviposition sites.
Tipo de documento
Artículo
Versión del documento
Versión aceptada
Lengua
Inglés
Materias (CDU)
632 - Enfermedades y protección de las plantas
Páginas
33
Publicado por
Springer
Publicado en
Journal of Chemical Ecology
Citación
Đurović, Gordana, Francine A. C. Van Neerbos, Sofie Bossaert, Beatriz Herrera-Malaver, Jan Steensels, Judit Arnó, and Felix Wäckers et al. 2021. "The Pupal Parasitoid Trichopria Drosophilae Is Attracted To The Same Yeast Volatiles As Its Adult Host". Journal Of Chemical Ecology. doi:10.1007/s10886-021-01295-6.
Número del acuerdo de la subvención
MICIU/Programa Estatal de generación del conocimiento y fortalecimiento científico y tecnológico del sistema I+D+I/PID2019-107030RB-C21/ES/PRACTICAS SOSTENIBLES PARA EL CONTROL DE TRIPS Y PULGONES EN FRUTALES DE HUESO Y DE PEPITA/
EC/H2020/722642/EU/From microbial interactions to new-concept biopesticides and biofertilizers/INTERFUTURE
Program
Protecció Vegetal Sostenible
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Copyright © 2021, The Author(s), under exclusive licence to Springer Science Business Media, LLC, part of Springer Nature
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