Figure 6. Biomass of P. aeruginosa and E. coli biofilms subjected to different local velocities in R2A medium.

A) Average biomass vs. fluid velocity for mono-cultured, 3-day old P. aeruginosa biofilms. B) Average biomass vs. fluid velocity on day 6 of experiments on colonization of P. aeruginosa by E. coli (after 3 days of mono-culture P. aeruginosa growth plus an additional 3 days after introduction of E. coli).