Fig. 6.

Effect of Fur on biofilm formation in TSBY. Microtiter plate biofilm assay; (A) Growth of cells as measured by optical density at 595 nm, (B) biofilm mass as measured by absorbance at 570 nm of crystal violet eluted from biofilm cells, and (C) biofilm mass normalized to cell density, i.e. biofilm/growth ratio. (D) Cultures grown 24 h in glass tubes; biofilm formation on surface of the tube and supernatant turbidity. Antibiotic resistant HKR.Nal (designated here as HK1651R) was used as WT.