Identification of Genes Involved in Polysaccharide-Independent Staphylococcus aureus Biofilm Formation (original) (raw)
Figure 2
Assessment of biofilm formation in transposon mutants.
Microtiter biofilm assays were performed in the absence (A) or presence (B) of the protease inhibitor α2-macroglobulin in triplicate, and the percentages of biofilm formation for each mutant relative to that of the wild type are shown. Error bars show standard deviation. Color coding is as follows: black bars indicate mutants with normal extracellular protease activity, blue bars indicate high protease activity and biofilm recovery with α2-macroglobulin, and red bars indicate the graS (37 C9) and imp (60 G7, 64 G10) mutations that did not recover with α2-macroglobulin.