title: [Age changes in the lipid fatty acid makeup of cultures of the family Entomophthoraceae].
abstract: The rate of biosynthesis of lipids and their fatty acid composition were studied in four cultures of microscopic fungi belonging to the family Entomophthoraceae in the course of their growth. The cultures synthesized from 23% to 43% of lipids. The lipids comprised fatty acids containing from 9 to 24 carbon atoms in the chain. The lipids differed in their fatty acid composition and the degree of saturation: unsaturated fatty acids (50-60%) prevailed in the lipids of Ent. conica 1716, Ent. thaxteriana 1711 and 1931, while saturated fatty acids (70%) predominated in the lipids of Ent. coronata 1710. Isomers with different position of double bonds were found among C18-unsaturated fatty acids (two octadecenic, three octadecadienic and two octadecatrienic acids). Branched fatty acids were detected in low amounts in the lipids. The character of changes in the fatty acid composition of lipids was different in the process of the cultural growth.
mesh_terms: D004773:Entomophthora / Q000254:growth & development / Q000378:metabolism*; D005227:Fatty Acids / Q000032:analysis / Q000096:biosynthesis*; D005658:Fungi / Q000378:metabolism*; D008401:Gas Chromatography-Mass Spectrometry; D008055:Lipids / Q000032:analysis / Q000096:biosynthesis*; D013997:Time Factors
chemical_list: D005227:Fatty Acids; D008055:Lipids
vernacular_title: Bozrastnye izmeneniia zhirnokislotnogo sostava lipidov u nekotorykh kul'tur semeĭstva Entomophthoraceae.