Figure 1From: Widespread pyocyanin over-production among isolates of a cystic fibrosis epidemic strainPyocyanin production in culture supernatants after overnight growth in Luria broth. Mean absorbance values are shown for isolates of P. aeruginosa falling into the following categories: (a) water isolates (n = 10); (b) keratitis isolates (n = 10); (c) non-LES CF isolates (n = 29); (d) all LES isolates (n = 48); (e) LES isolates omitting known lasR mutants (n = 38); (f) LES known lasR mutants (n = 10); (g) strain PA01.Back to article page