title: [Natural variation of Actinomyces streptomycini Krass No 11 a variant of strain 973 of streptomycin producing organisms].
mesh_terms: D000190:Actinomyces / Q000166:cytology / Q000378:metabolism*; D003470:Culture Media; D013307:Streptomycin / Q000096:biosynthesis*
chemical_list: D003470:Culture Media; D013307:Streptomycin
vernacular_title: Estestvennaia izmenchivost' varianta stamma No 973, produtsenta streptomitsina.