Activity of streptomyces Spp. from agriculture soils against phytopathogens

Abstract

Antimicrobial activity of Moldovian selected strains of streptomycetes revealed that the growth of test cultures was actively delayed by 11 Streptomyces strains. Strain Streptomyces sp. 9 caused the formation of zones of lacking growth in 6 out of the 11 phytopathogens tested. Metabolites of the strains Streptomyces spp. 10 and 33 completely suppressed Alternaria alternata growth, while Streptomyces spp. 10 and 17 – Botrytis cinerea, strain Streptomyces sp. 10 – Fusarium graminearum. Growth of Clavibacter michiganensis was completely suppressed by the metabolites of the strain Streptomyces sp. 145. Results confirm the prospective to continue the research in bio-pesticide usage.