Fig. 3

a Growth patterns obtained for the mutant and parental strains in DifcoNA supplemented with 5 μg per mL of teicoplanin (with or without 1% K₂HPO₄ addition) and TSA supplemented with 5 μg per mL of teicoplanin. In all cases different concentrations of vancomycin were combined. A similar result was observed with the addition of kanamycin instead of teicoplanin and for this reason the data is not shown. b Schematic representation of the induction of teicoplanin resistance in the “L2” and “H11” strains with TSA and DifcoNA+ 1% K₂HPO₄