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Wolbachia infection suppresses both host defence and parasitoid counter-defence

Fytrou, Anastasia, Schofield, Peter G., Kraaijeveld, Alex R. and Hubbard, Stephen F. (2006) Wolbachia infection suppresses both host defence and parasitoid counter-defence Proceedings of the Royal Society B: Biological Sciences, 273, (1588), pp. 791-796. (doi:10.1098/rspb.2005.3383).

Record type: Article

Abstract

Endosymbiotic bacteria in the genus Wolbachia have been linked to several types of reproductive parasitism, which enhance their own transmission, while their direct effects on the host vary from beneficial to neutral or detrimental. Here, we report negative effects of infection on immunity-related traits of Drosophila simulans and the parasitoid wasp Leptopilina heterotoma. Infected D. simulans showed a reduced ability to encapsulate parasitoid eggs, compared to a tetracycline-treated, bacterium-free line. Challenging the two lines with a fungal pathogen, Beauveria bassiana, on the other hand, revealed no differences in survival. Moreover, elimination of Wolbachia was beneficial for the parasitoid wasp, as eggs laid by uninfected females suffered significantly lower encapsulation rates. We discuss possible origins of these fitness costs and their implications for infection dynamics and the interactions between host species.

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More information

Published date: 7 April 2006
Keywords: Wolbachia, Drosophila simulans, fitness costs, parasitoid, resistance, encapsulation

Identifiers

Local EPrints ID: 56613
URI: http://eprints.soton.ac.uk/id/eprint/56613
ISSN: 1471-2954
PURE UUID: 50d16cd0-3498-45a7-8676-e887e6f765cc
ORCID for Alex R. Kraaijeveld: ORCID iD orcid.org/0000-0002-8543-2640

Catalogue record

Date deposited: 11 Aug 2008
Last modified: 17 Jul 2017 14:30

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Contributors

Author: Anastasia Fytrou
Author: Peter G. Schofield
Author: Stephen F. Hubbard

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