For minimum inhibitory concentration (MIC) analysis, 100 μl of the bacterial suspension was prepared as above and added to the wells of a 96-well plate. Ten microliters of twofold serial dilutions of screened drugs (from 0.012 to 12.8 μg/ml) and peptides (from 1 to 512 μg/ml) was added to the indicated well. Bacterial growth was assessed visually after culture for 1 week.
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