Figure 2
From: Fluorometric determination of ethidium bromide efflux kinetics in Escherichia coli
Accumulation of EtBr at increasing concentrations by E. coli K-12 AG100 (A), AG100A (B) and AG100 TET (C). The bacteria were exposed to increasing concentrations of EtBr at 37°C in the presence of glucose. Note: assays for AG100A were carried out with lowest EtBr concentrations (0.125 μg/ml - 1.5 μg/ml) -- see text.