Ecological Entomology (2014) 39, 736-739
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Specialisation of bacterial endosymbionts that protect aphids from parasitoids
Ecological Entomology 39 (6), 736-739
Abstract: 1. Infection by the bacterial endosymbiont Hamiltonella defensa is capable of protecting the pea aphid from parasitism by Aphidius ervi and the black bean aphid from parasitism by Lysiphlebus fabarum. Here we investigate protection of a third aphid species, the cowpea aphid, Aphis craccivora, from four parasitoid species: Binodoxys communis, B. koreanus, Lysiphlebus orientalis, and Aphidius colemani.
2. We compared parasitism of A. craccivora lines that were either infected with, or cured of H. defensa separately for the four parasitoid species. Infection by H. defensa almost completely eliminated parasitism of A. craccivora by B. communis and B. koreanus, but had no effect on parasitism by L. orientalis and A. colemani.
3. This indicates at least genus-level specificity of protective effects by H. defensa and we discuss implications of our findings on the known world-wide distribution of this host/symbiont interaction.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Nicolas Desneux, Keith R. Hopper, Kerry M. Oliver
Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
resistance/tolerance/defence of host
Pest and/or beneficial records:
| Beneficial | Pest/Disease/Weed | Crop/Product | Country | Quarant. |
|---|---|---|---|---|
| Aphis fabae | ||||
| Aphis craccivora | ||||
| Aphidius colemani (parasitoid) | Aphis craccivora | |||
| Binodoxys communis (parasitoid) | Aphis craccivora | |||
| Binodoxys koreanus (parasitoid) | Aphis craccivora | |||
| Lysiphlebus orientalis (parasitoid) | Aphis craccivora | |||
| Lysiphlebus orientalis (parasitoid) | Aphis craccivora |
