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  • Differential expression of immune defences is associated with specific host-parasite interactions in insects.

Differential expression of immune defences is associated with specific host-parasite interactions in insects.

PloS one (2009-10-28)
Carolyn Riddell, Sally Adams, Paul Schmid-Hempel, Eamonn B Mallon
ABSTRACT

Recent ecological studies in invertebrates show that the outcome of an infection is dependent on the specific pairing of host and parasite. Such specificity contrasts the long-held view that invertebrate innate immunity depends on a broad-spectrum recognition system. An important question is whether this specificity is due to the immune response rather than some other interplay between host and parasite genotypes. By measuring the expression of putative bumblebee homologues of antimicrobial peptides in response to infection by their gut trypanosome Crithidia bombi, we demonstrate that expression differences are associated with the specific interactions.

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