Research Article

Relevance of Biofilms in the Pathogenesis of Shiga-Toxin-Producing Escherichia coli Infection

Figure 3

Biofilm formation with H2O2 treatment (range of 2.5 to 30 mM) of strain N° 1. (a) Biofilm biomass units (BBU) (- -), relation of ROS and BBU (ROS/BBU) (-■-), and NO and BBU relation (NO/BBU, nitrite expressed in M) (-▲-); (b) SOD activity (%)/BBU (- -); and (c) CAT (U)/BBU (- -). Each line shows the mean ± SEM of three independent experiments.