FIG 7.

Two compounds show induction of the iniBAC reporter. In total, six compounds were selected for additional induction experiments in a concentration range from 0.1 to 10 μM. The names of the compounds can be found in the key. (A) The fold induction of the iniBAC reporter for the 6 tested compounds. Fold induction was calculated by dividing the mean fluorescence intensity (MFI) of the treated sample by the MFI of untreated controls (B) The bacterial viability for the range of concentrations that were used. The viability was determined by a resazurin viability assay. The percentages indicate the fraction of fluorescence compared to growth controls.