FIG. 3.

Heritability of persister formation. Biofilms were treated with 100 μg/ml amphotericin B or 100 μg/ml chlorhexidine for 24 h, after which they were disrupted by being vortexed, washed, and reinoculated in order to form new biofilms. The biofilms were sampled for CFU determination before and after antibiotic treatment. The procedure was repeated a total of three times. The experiment was performed in triplicate, and the error bars indicate standard deviations.