Abstract
Aim. To study the antagonistic activity of actinomycetes isolated from soils adjacent to Kumisi Lake (Georgia). Methods. It was used 12 samples of actinomycetes isolated from the soils adjacent to Kumisi Lake. The antibiotic activity of actinomycetes was determined using test strains: Escherichia coli К-12 (B-3254), Bacillus subtilis 26 D, Xanthomonas campestris В-1459, Rhizobium radiobacter C58, Pectobacterium carotovorum EC1by the method of agar blocks. Results. It was revealed that actinomycete samples isolated from soils adjacent to Lake Kumisi shown the most significant inhibitory effect on test strains: Escherichia coli B-3254, Rhizobium radiobacter C58 and Xanthomonas campestris В-1459. The most resistant test-strains, to the studied actinomycetes, were Bacillus subtilis 26 D and Pectobacterium carotovorum EC1. Conclusion. Isolated strain 301 of actinomycetes shown a significant antagonistic effect on all test strains and could be potential for further studies spectrum and properties of antibiotic compounds.
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