Abstract

The actinomycete Streptomyces sp. 89 with antagonistic activity towards plant pathogens was isolated from the typical chernozem. Antibiotic substances with physiological activity against phytopathogenic fungi and bacteria were isolated from the actinomycete biomass and identified. It was shown that the ratio of the components of the actinomycete antibiotic complex is largely determined by the redox potential of the medium. The redox potential and other environmental factors had a noticeable effect on the formation of polyene, but to a lesser extent, on the synthesis of nonpolyene components. The possibility of targeted regulation of the antibiotic composition and, as a result, the spectrum of biological action is evaluated.

中文翻译：

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土壤放线菌链霉菌的拮抗特性的检测和调控。89

摘要

放线菌链霉菌属。从典型的黑钙土中分离出对植物病原体具有拮抗活性的 89。从放线菌生物质中分离并鉴定出对植物病原真菌和细菌具有生理活性的抗生素物质。结果表明，放线菌抗生素复合物的组分比例很大程度上取决于培养基的氧化还原电位。氧化还原电位和其他环境因素对多烯的形成有显着影响，但对非多烯组分的合成影响较小。对抗生素成分进行靶向调节的可能性以及由此产生的生物作用范围进行了评估。