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Bacterial phylogeny predicts volatile organic compound composition and olfactory response of an aphid parasitoid
Goelen, Tim Sobhy, Islam S. Vanderaa, Christophe Wäckers, Felix Rediers, Hans Wenseleers, Tom Jacquemyn, Hans Lievens, Bart
Goelen, Tim
Sobhy, Islam S.
Vanderaa, Christophe
Wäckers, Felix
Rediers, Hans
Wenseleers, Tom
Jacquemyn, Hans
Lievens, Bart
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2020-06-02
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Abstract
There is increasing evidence that microorganisms emit a wide range of volatile compounds (mVOCs, microbial volatile organic compounds) that act as insect semiochemicals, and therefore play an important role in insect behaviour. Although it is generally believed that phylogenetically closely related microbes tend to have similar phenotypic characteristics and therefore may elicit similar responses in insects, currently little is known about whether the evolutionary history and phylogenetic relationships among microorganisms have an impact on insect–microbe interactions. In this study, we tested the hypothesis that phylogenetic relationships among 40 Bacillus strains isolated from diverse environmental sources predicted mVOC composition and the olfactory response of the generalist aphid parasitoid Aphidius colemani . Results revealed that phylogenetically closely related Bacillus strains emitted similar blends of mVOCs and elicited a comparable olfactory response of A. colemani in Y‐tube olfactometer bioassays, varying between attraction and repellence. Analysis of the chemical composition of the mVOC blends showed that all Bacillus strains produced a highly similar set of volatiles, but often in different concentrations and ratios. Benzaldehyde was produced in relatively high concentrations by strains that repel A. colemani , while attractive mVOC blends contained relatively higher amounts of acetoin, 2,3‐butanediol, 2,3‐butanedione, eucalyptol and isoamylamine. Overall, these results indicate that bacterial phylogeny had a strong impact on mVOC compositions and as a result on the olfactory responses of insects.
Citation
Goelen, T., Sobhy, I. S., Vanderaa, C., Wäckers, F., Rediers, H., Wenseleers, T., Jacquemyn, H., & Lievens, B. (2020). Bacterial phylogeny predicts volatile organic compound composition and olfactory response of an aphid parasitoid. Oikos, 129(9), 1415-1428. https://doi.org/10.1111/oik.07301
Publisher
Wiley
Nordic Society Oikos
Nordic Society Oikos
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Oikos
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Article
Language
en
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This is the peer reviewed version of the following article: [Goelen, T., Sobhy, I. S., Vanderaa, C., Wäckers, F., Rediers, H., Wenseleers, T., Jacquemyn, H., & Lievens, B. (2020). Bacterial phylogeny predicts volatile organic compound composition and olfactory response of an aphid parasitoid. Oikos, 129(9), 1415-1428], which has been published in final form at [https://doi.org/10.1111/oik.07301]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
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0030-1299
EISSN
1600-0706
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