[Lipid synthesis by Micrococcus freudenreichii in media containing unsaturated hydrocarbon's].
The growth and synthesis of lipids by thermotolerant bacteria Micrococcus freudenreichii K-219 were investigated in the mineral medium containing a mixture of unsaturated (I-) and saturated hydrocarbons. The bacteria utilized primarily I-alkenes. In lipids the predominant fractions were phospholipids (57%) and free fatty acids (20%). The content of waxes which were in significant quantities in n-alkane containing media (9%) was not higher than 0.3% dry matter upon utilization of I-alkenes. There was a certain correlation between carbon atoms of synthesized fatty acids and unsaturated hydrocarbons used. Bacteria utilizing I-alkenes showed no elevated unsaturation of cell lipids as compared to those assimilating n-alkanes. These data give evidence for different pathways of oxidation of alkenes and alkanes by the above microbial strain.
D000473:Alkanes / Q000378:metabolism; D000475:Alkenes / Q000378:metabolism*; D003470:Culture Media; D005230:Fatty Acids, Nonesterified / Q000096:biosynthesis; D008055:Lipids / Q000096:biosynthesis*; D008837:Micrococcus / Q000378:metabolism*; D010743:Phospholipids / Q000096:biosynthesis; D013696:Temperature; D014885:Waxes / Q000378:metabolism
D000473:Alkanes; D000475:Alkenes; D003470:Culture Media; D005230:Fatty Acids, Nonesterified; D008055:Lipids; D010743:Phospholipids; D014885:Waxes
Nekotorye osobennosti sinteza lipidov Micrococcus freudenreichii na sredakh s nepredel'nymi uglevodorodami