Limited scope for maternal effects in aphid defence against parasitoids
نویسندگان
چکیده
منابع مشابه
Culture of an aphid heritable symbiont demonstrates its direct role in defence against parasitoids.
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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Parasitism by phloem-feeding insects, such as aphids and whiteflies, are widespread and often serious constraint on plant growth. Aphids successfully exploit a broad range of vascular plants. Despite the ubiquity of phloem feeding insects, in depth knowledge of plant defence and plantmicrobe interactions is still lagging. This review summarizes the current knowledge about the phloem sap protein...
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Bt-transgenic cotton has proven to be highly efficient in controlling key lepidopteran pests. One concern with the deployment of Bt cotton varieties is the potential proliferation of non-target pests. We previously showed that Bt cotton contained lower concentrations of insecticidal terpenoids as a result of reduced caterpillar damage, which benefited the aphid Aphis gossypii. It is thus import...
متن کاملEvidence for specificity in symbiont-conferred protection against parasitoids.
Many insects harbour facultative symbiotic bacteria, some of which have been shown to provide resistance against natural enemies. One of the best-known protective symbionts is Hamiltonella defensa, which in pea aphid (Acyrthosiphon pisum) confers resistance against attack by parasitoid wasps in the genus Aphidius (Braconidae).We asked (i) whether this symbiont also confers protection against a ...
متن کاملGlycoproteins from Russian wheat aphid infested wheat induce defence responses.
Elicitors are molecules which can induce the activation of plant defence responses. Elicitor activity of intercellular wash fluid from Russian wheat aphid, Diuraphis noxia (Mordvilko) infested resistant (cv Tugela DN), and susceptible (cv Tugela), wheat (Triticum aestivum L.), was investigated. Known Russian wheat aphid resistance related responses such as peroxidase and beta-1,3-glucanase acti...
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ژورنال
عنوان ژورنال: Ecological Entomology
سال: 2008
ISSN: 0307-6946,1365-2311
DOI: 10.1111/j.1365-2311.2007.00949.x