Adaptation of iron homeostasis pathways by a Pseudomonas aeruginosa pyoverdine mutant in the cystic fibrosis lung.

Abstract excerpt

Cystic fibrosis (CF) patients suffer from chronic bacterial lung infections, most notably by Pseudomonas aeruginosa, which persists for decades in the lungs and undergoes extensive evolution. P. aeruginosa requires iron for virulence and uses the fluorescent siderophore pyoverdine to scavenge and solubilize ferric iron during acute infections. Pyoverdine mutants accumulate in the lungs of some CF patients,...

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