Loading...
The pupal parasitoid Trichopria drosophilae is attracted to the same yeast volatiles as its adult host
Đurović, Gordana Van Neerbos, Francine A. C. Bossaert, Sofie Herrera-Malaver, Beatriz Steensels, Jan Arnó, Judit Wäckers, Fellix Sobhy, Islam S. Verstrepen, Kevin J. Jacquemyn, Hans
Đurović, Gordana
Van Neerbos, Francine A. C.
Bossaert, Sofie
Herrera-Malaver, Beatriz
Steensels, Jan
Arnó, Judit
Wäckers, Fellix
Sobhy, Islam S.
Verstrepen, Kevin J.
Jacquemyn, Hans
Citations
Altmetric:
Advisors
Editors
Other Contributors
EPub Date
Publication Date
2021-07-16
Submitted Date
Collections
Files
Loading...
Article - AAM
Adobe PDF, 626.18 KB
Other Titles
Abstract
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.
Citation
Đurović, G., Van Neerbos, F. A. C., Bossaert, S., Herrera-Malaver, B., Steensels, J., Arnó, J., Wäckers, F., Sobhy, I. S., Verstrepen, K. J., Jacquemyn, H., & Lievens, B. (2021). The pupal parasitoid Trichopria drosophilae is attracted to the same yeast volatiles as its adult host. Journal of Chemical Ecology, 47, 788–798. https://doi.org/10.1007/s10886-021-01295-6
Publisher
Springer
Journal
Journal of Chemical Ecology
Research Unit
PubMed ID
PubMed Central ID
Type
Article
Language
en
Description
This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s10886-021-01295-6
Series/Report no.
ISSN
0098-0331
EISSN
1573-1561
ISBN
ISMN
Gov't Doc
Test Link
Sponsors
GD and FW were supported by the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement no. 722642 (INTERFUTURE). JA was supported by CERCA Programme/Generalitat de Catalunya and the Spanish Ministry of Economy and Competitiveness (Project PID2019-107030RB-C21). Work in the lab of BL is supported by KU Leuven, VLAIO and FWO.