title: [Variability of Aspergillus niger, the producer of citric acid, under the influence of the separate and combined actions of nitrosomethylurea and ultraviolet rays].
mesh_terms: D001230:Aspergillus / Q000187:drug effects* / Q000528:radiation effects; D002951:Citrates / Q000096:biosynthesis*; D004305:Dose-Response Relationship, Drug; D004307:Dose-Response Relationship, Radiation; D014644:Genetic Variation / Q000187:drug effects* / Q000528:radiation effects; D005942:Gluconates / Q000096:biosynthesis; D009154:Mutation / Q000187:drug effects / Q000528:radiation effects; D009607:Nitrosourea Compounds / Q000494:pharmacology*; D010070:Oxalates / Q000096:biosynthesis; D011830:Radiation Effects; D012641:Selection, Genetic; D013997:Time Factors; D014466:Ultraviolet Rays
chemical_list: D002951:Citrates; D005942:Gluconates; D009607:Nitrosourea Compounds; D010070:Oxalates
vernacular_title: Izmenchivost' Aspergillus niger--produtsenta limonnoĭ kisloty pod vliianiem razdel'nogo i kombinirovannogo deĭstviia nitrozometilmocheviny i ul'trafioletovykh lucheĭ