Fig. 3

echA plays a central role in biofilm ultrastructure in A. xylosoxidans MN001. a Early attachment assay for WT and echA mutant. Error bars represent standard deviation of the mean for replicate experiments (n = 3). b Colony biofilms grown on Congo red plates for 6 days revealed no differences in matrix production. c Mature biofilms of the WT and mutant were visualized by SEM to examine biofilm architecture (scale bars, top = 30μm, bottom = 10 μm). All images shown are representative of experiments performed in biological triplicate (n = 3) with similar results