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Effects of various concentrations of siamycin I on growth of and gelatinase production by E. faecalis OG1RF. E. faecalis OG1RF was grown for 5 h in the presence of different concentrations of siamycin I, and then the OD660 (○) and gelatinase activity at OD540 (•) in the culture supernatant were determined as described in Materials and Methods. The data are averages ± standard deviations of duplicate determinations.
