Figure 6.
High concentrations of aminoglycosides do not induce AgR cassettes. (A) Induction ratio of a subset of AgR cassettes in the presence of 128 μg/ml of kanamycin (blue dots). As a reference, the IR values at 0.5 μg/ml of kanamycin from Figure 5 are also represented (green dots). (B) Induction ratio (calculated as the ratio of fluorescence/OD600 with kanamycin over fluorescence/OD600 without kanamycin) of these strains along their growth curve (18 h). Color code is as in (A). Green: pMBA; red: pMBA5′-aacA5; blue: control strains; mauve: strains with identical 5′-UTRs; gray: rest of strains.