Figure 4. Scanning electron microscopy of S. aureus biofilms treated with cell-free conditioned media (CFCM) of P. aeruginosa. Panels (A) and (B) represent controls for S. aureus RN4220 and USA300, re
aProduction of nuclease was measured on DNase agar, and is indicated by a ‘+’ sign. bIsolates grew poorly in both the planktonic and biofilm phase. cND, not determined.
a Statistical significance measured using two-way ANOVA with Sidak’s multiple comparison test. * = p < 0.05 *** = p < 0.001 b Percent composition shown with standard deviation in parentheses. c While
