Analysis of Pseudomonas aeruginosa conditional psl variants reveals roles for the psl polysaccharide in adhesion and maintaining biofilm structure postattachment.

Abstract excerpt

The ability to form biofilms in the airways of people suffering from cystic fibrosis is a critical element of Pseudomonas aeruginosa pathogenesis. The 15-gene psl operon encodes a putative polysaccharide that plays an important role in biofilm initiation in nonmucoid P. aeruginosa strains. Biofilm initiation by a P. aeruginosa PAO1 strain with disruption of pslA and pslB (DeltapslAB) was severely compromised,...

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