Specialisation of bacterial endosymbionts that protect aphids from parasitoids

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 f...

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Bibliographic Details
Published in:Ecological entomology 2014-12, Vol.39 (6), p.736-739
Main Authors: ASPLEN, MARK K, BANO, NASREEN, BRADY, CRISTINA M, DESNEUX, NICOLAS, HOPPER, KEITH R, MALOUINES, CLARA, OLIVER, KERRY M, WHITE, JENNIFER A, HEIMPEL, GEORGE E
Format: Article
Language:English
Subjects:
Acyrthosiphon pisum
Aphididae
Aphidius
Aphidius colemani
Aphidius ervi
Aphis craccivora
Aphis fabae
Bacteria
Binodoxys
defensive symbiont
endosymbionts
Environmental Sciences
Hamiltonella defensa
Life Sciences
Lysiphlebus
Lysiphlebus fabarum
parasitism
parasitoids
protective effect
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Summary: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.
ISSN:0307-6946
1365-2311
DOI:10.1111/een.12153