[Study of the antagonistic action of actinomycetes on anthrax bacilli].

Capacity for the growth inhibition of the highly virulent causative agent of Siberia plague was studied with respect to actinomycetous strains from soil samples of the Ukraine. It was found that on nutrient media 88.4, 88.9, 88.1 and 93.4% of the isolates inhibited the growth of Bac. anthracis, Bac. cereus, Bac. mycoides and Tsenkovsky vaccine strain respectively. Representatives of very different taxonomic groups were found among the antagonistic actinomycetes. Clearance of the soil from Siberia plague bacilli stable to the outer effect with the help of the active strain L-721 of Act. chromofuscus was observed. The effect was chown in sterilized soil, not sterile soil and soil monolith.