Acceleration of Enterococcus faecalis Biofilm Formation by Aggregation Substance Expression in an Ex Vivo Model of Cardiac Valve Colonization
Figure 7
Effects of mutations altering Asc10 subdomains on adherence and biofilm development.
(A) At initial timepoints, the double RGD mutant (OG1SSp [pCF10-2]) binds as well or better than Asc10+ OG1SSp (pCF10); no deficiency in binding to porcine valve tissue was detected until 4 h. (B) Deletion of the C-terminal domain of Asc10 does not significantly affect the ability of E. faecalis to bind to valve tissue. The data shown are a compilation of at least three experiments. * denotes p≤0.02, with respect to Asc10+ OG1SSp (pCF10) valve bacterial loads.