Survival of S. aureus after LP5 exposure
The ability of S. aureus 8325–4 to resume growth after incubation with 1 × MIC was investigated as follows: bacteria were grown overnight in TSB medium and diluted 1:50 in TSB medium and allowed to grow to OD600 of 0.2 LP5 was added to a final concentration 1 × MIC, followed by incubation at 37°C while shaking. A control without LP5 was included. After 3 h cells were harvested and resuspended in fresh TSB medium and 3 × 100 μl cell suspension was added to 100 μl TSB medium in a 96-well microtiter plate. Growth was monitored by measuring the optical density at 600 nm every 20 min for 17 h by the Gen5™ program (BioTek®). The reported results are from two independent experiments.