Additional file 6: of Stationary phase persister formation in Escherichia coli can be suppressed by piperacillin and PBP3 inhibition

Figure S6. Impact of different concentrations of piperacillin on persister levels. Cultures at early stationary phase (t = 4 h) were treated with either 20 µg/mL piperacillin (A and B) or 50 µg/mL piperacillin (C and D). Control (untreated) was treated with equal volume of water. At t = 24 h, cells were washed, diluted into fresh media and treated with either 200 µg/mL ampicillin or 5 µg/mL ofloxacin. Survival fractions were monitored for 7 h. * p