Symbiont infection affects aphid defensive behaviours

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Symbiont infection affects aphid defensive behaviours.

Aphids harbour both an obligate bacterial symbiont, Buchnera aphidicola, and a wide range of facultative ones. Facultative symbionts can modify morphological, developmental and physiological host traits that favour their spread within aphid populations. We experimentally investigated the idea that symbionts may also modify aphid behavioural traits to enhance their transmission. Aphids exhibit m...

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Defences against parasites are typically associated with costs to the host that contribute to the maintenance of variation in resistance. This also applies to the defence provided by the facultative bacterial endosymbiont Hamiltonella defensa, which protects its aphid hosts against parasitoid wasps while imposing life-history costs. To investigate the cost-benefit relationship within protected ...

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ژورنال

عنوان ژورنال: Biology Letters

سال: 2011

ISSN: 1744-9561,1744-957X

DOI: 10.1098/rsbl.2011.0249