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Trends Microbiol. 2007 Jan;15(1):22-30. Epub 2006 Nov 21.

Pyoverdine siderophores: from biogenesis to biosignificance.

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Department of Biology, University Roma Tre, Rome I-00146, Italy.


Pyoverdines are a group of structurally related siderophores produced by fluorescent Pseudomonas species. Recent genomic and biochemical data have shed new light on the complex molecular steps of pyoverdine biogenesis and explained the chemical diversity of these compounds. In the opportunistic pathogen Pseudomonas aeruginosa, pyoverdine is necessary for infection in several different disease models. The occurrence of pyoverdine-defective strains in chronic infections of patients with cystic fibrosis and the extremely high sequence diversity of genes involved in pyoverdine synthesis and uptake indicate that pyoverdine production is subject to high evolutionary pressure. Pyoverdine-dependent iron transport is also crucial for biofilm development, further expanding the importance of these siderophores in Pseudomonas biology.

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