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Enzymatic treatment of preformed 24 (no flow) or 17 (flow) h-old biofilms of UAS391-EryS, ATCC® 25923™ and urea or TCA-cycle Tn mutants with 100 µg/mL proteinase K (A,C) or 100 U/mL DNase I (B,D) under no flow (no flow) (A,B) and dynamic (flow) (C,D) conditions. Blanks refer to incubation in either culture medium with 10 mM Tris-HCl for proteinase K treatment or culture medium for DNase I treatment. Error bars represent 95% confidence intervals. ** refers to p < 0.001.
