FIG. 2.

Biofilm formation of ABU and CA-ABU E. coli isolates in synthetic urine. Strains were grown in PVC microtiter plates, washed, and stained with 0.1% crystal violet. The absorbance at 595 nm correlates to the amount of biofilm formed. The results are the averages of three independent experiments, each with four replicates. Horizontal bars indicate the mean for each infection category. The CA-ABU E. coli isolates selected for transcriptome analysis (M366 and MS2034) and the relative position of ABU E. coli strain 83972 are indicated.