Fig. 6.

Effects of fermentation broths on the production of antimicrobial substances by Streptomyces sp. CMU-NKS-3. PDB, YpSs, AMHU-5, EM, BN, and F-4 were used as the fermentation broths (see also the Materials and Methods section). Streptomycin (for test bacteria and yeasts) and benomyl (for test filamentous fungi) at a final concentration of 50 mg mL⁻¹ were used as the positive controls. The numbers 1–23 represent the test organisms listed in Table 1. The graph was plotted by means ± SDs computed based on the data derived from triplicate experiments. Statistical comparisons can be found elsewhere in this study.