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J Bacteriol. 2001 Feb;183(4):1466-71.

Drosophila as a model host for Pseudomonas aeruginosa infection.

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  • 1Department of Genetics, University of Washington, Seattle, Washington 98195-7360, USA.

Abstract

Using the fruit fly Drosophila melanogaster as model host, we have identified mutants of the bacterium Pseudomonas aeruginosa with reduced virulence. Strikingly, all strains strongly impaired in fly killing also lacked twitching motility; most such strains had a mutation in pilGHIJKL chpABCDE, a gene cluster known to be required for twitching motility and potentially encoding a signal transduction system. The pil chp genes appear to control the expression of additional virulence factors, however, since the wild-type fly-killing phenotype of a subset of mutants isolated on the basis of their compact colony morphology indicated that twitching motility itself was not required for full virulence in the fly.

PMID:
11157963
[PubMed - indexed for MEDLINE]
PMCID:
PMC95024
Free PMC Article
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