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Behavioural responses of the aphid parasitoid Diaeretiella rapae to volatiles from Arabidopsis thaliana induced by Myzus persicae

Girling, R.D., Hassall, M., Turner, J.G. and Poppy, G.M. (2006) Behavioural responses of the aphid parasitoid Diaeretiella rapae to volatiles from Arabidopsis thaliana induced by Myzus persicae Entomologia Experimentalis et Applicata, 120, (1), pp. 1-9. (doi:10.1111/j.1570-7458.2006.00423.x).

Record type: Article


In response to herbivoryby insects, several plant species have been shown to produce volatiles that attract the natural enemies of those herbivores. Using a Y-tube olfactometer, we investigated responses of the aphid parasitoid Diaeretiella rapae Macintosh (Hymenoptera: Aphidiidae) to volatiles from Arabidopsis thaliana Columbia (Brassicaceae) plants that were either undamaged, infested by the peach-potato aphid, Myzus persicae Sulzer (Homoptera: Aphididae), or mechanically damaged, as well as to volatiles from just the aphid or its honeydew. In dual-choice experiments, female D. rapae given oviposition experience on A. thaliana infested with M. persicae were significantly attracted to volatiles from A. thaliana infested with M. persicae over volatiles from undamaged A. thaliana and similarly were significantly attracted to plants that had been previously infested by M. persicae, but from which the aphids were removed, over undamaged plants. Diaeretiella rapae did not respond to volatiles from M. persicae alone, their honeydew, or plants mechanically damaged with either a pin or scissors. We conclude that an interaction between the plant and the aphid induces A. thaliana to produce volatiles, which D. rapae can learn and respond to. Poor responses of D. rapae to volatiles from an A. thaliana plant that had two leaves infested with M. persicae, with the two infested leaves being removed before testing, suggested the possibility that, at this stage of infestation, the majority of volatile production induced by M. persicae may be localized to the infested tissues of the plant. We conclude that this tritrophic interaction is a suitable model system for future investigations of the biochemical pathways involved in the production of aphid-induced volatiles attractive to natural enemies

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Published date: 1 July 2006
Keywords: homoptera, aphidoidea, aphididae, spermatophyta, angiospermae, dicotyledones, cruciferae, invertebrata, arthropoda, insecta, hymenoptera, braconidae, animal plant relation, entomophagous, myzus persicae, arabidopsis thaliana, diaeretiella rapae, biological control, beneficial animal, olfactometry, egg laying behavior, tritrophic system, host plant, pest, damage, volatile compound, attraction, parasitoid


Local EPrints ID: 56044
ISSN: 0013-8703
PURE UUID: 899c2812-5090-4c61-ad53-646e59e4d7c9

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Date deposited: 08 Aug 2008
Last modified: 17 Jul 2017 14:31

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Author: R.D. Girling
Author: M. Hassall
Author: J.G. Turner
Author: G.M. Poppy

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