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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-27606

Vorburger, C; Gehrer, L; Rodriguez, P (2010). A strain of the bacterial symbiont Regiella insecticola protects aphids against parasitoids. Biology Letters, 6(1):109-111.

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Aphids commonly harbour facultative bacterial
endosymbionts and may benefit from their
presence through increased resistance to parasitoids.
This has been demonstrated for
Hamiltonella defensa and Serratia symbiotica,
while a third common endosymbiont, Regiella
insecticola, did not provide such protection.
However, this symbiont was recently detected
in a highly resistant clone of the peach-potato
aphid, Myzus persicae, from Australia. To test
if resistance was indeed conferred by the endosymbiont,
we eliminated it from this clone with
antibiotics, and we transferred it to two other
clones of the same and one clone of a different
aphid species (Aphis fabae). Exposing these
lines to the parasitoid Aphidius colemani
showed clearly that unlike other strains of this
bacterium, this specific isolate of R. insecticola
provides strong protection against parasitic
wasps, suggesting that the ability to protect
their host against natural enemies may evolve
readily in multiple species of endosymbiotic


65 citations in Web of Science®
67 citations in Scopus®
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71 downloads since deposited on 24 Jan 2010
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Evolutionary Biology and Environmental Studies
Dewey Decimal Classification:570 Life sciences; biology
590 Animals (Zoology)
Uncontrolled Keywords:Aphis fabae; endosymbiont; Myzus persicae; parasitoid; Regiella insecticola; resistance
Deposited On:24 Jan 2010 11:30
Last Modified:28 Nov 2013 04:38
Publisher:The Royal Society
Publisher DOI:10.1098/rsbl.2009.0642
PubMed ID:19776066

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