FIGURE 1.

Distribution pattern of bacterial populations over the time. Number of viable cells (in log10 CFU/mL) of P. aeruginosa and MRSA on mono- and dual-species biofilms formed after 3 h (A), 6 h (B), 12 h (C) and 24 h (D). Data are reported as CFU/mL mean ± standard deviation of at least three independent experiments. Figure 2 | Dual-species biofilm formed by MRSA (ATCC 43300) and P. aeruginosa (ATCC 27853) on porous glass beads after 24 h of incubation. Image (B) is a close-up from (A). Numbers 1 and 2 indicate a MRSA bacterium and a P. aeruginosa bacterium, respectively, whereas three and four point out a water channel and the extracellular polymeric matrix of the biofilm correspondingly.