Aphid Heritable Symbiont Exploits Defensive Mutualism
نویسندگان
چکیده
منابع مشابه
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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Heritable symbionts are common in insects with many contributing to host defence. Hamiltonella defensa is a facultative, bacterial symbiont of the pea aphid, Acyrthosiphon pisum that provides protection against the endoparasitoid wasp Aphidius ervi Protection levels vary among strains of H. defensa that are differentially infected by bacteriophages named APSEs. By contrast, little is known abou...
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If we wish to break the continual cycle of patching and replacing our core monoculture systems to defend against attacker evasion tactics, we must redesign the way systems are deployed so that the attacker can no longer glean the information about one system that allows attacking any other like system. Hence, a new poly-culture architecture that provides complete uniqueness for each distinct de...
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Some bacterial symbionts alter their hosts reproduction through various mechanisms that enhance their transmission in the host population. In addition to its obligatory symbiont Buchnera aphidicola, the pea aphid Acyrthosiphon pisum harbors several facultative symbionts influencing several aspects of host ecology. Aphids reproduce by cyclical parthenogenesis whereby clonal and sexual reproducti...
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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: Applied and Environmental Microbiology
سال: 2017
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.03276-16