Fig. 1

Experimental setup for culture preparation and RNA extraction. S. aureus and P. aeruginosa strains were first grown separately in microtiter plates under static conditions and then mixed at the same proportion to prepare the co-cultures. Plate counts show no significant differences between replicates. Proportion of P. aeruginosa and S. aureus in co-cultures. Shown are average values of thre three replicates with standard deviations at the beginning of the co-culture (t = 3 h) and after 3 h of incubation (t = 6 h)