[14C incorporation into lipid fractions of yeast Candida quilliermondii during growth in the presence of different carbon sources].
Kinetics of 14C incorporation into lipid fractions of yeast C. quilliermondii from 1-14C-octadecane and 1,2-14C-acetic acid is studied. Considerable differences, revealed in kinetics and the rate of 14C incorporation into lipid fractions depending on the lipid precursors, draw to the conclusion that the lipid synthesis from octadecane and acetic acid can occur through different pathways. The absence of the competition under the carbon influx into lipid fraction also suggests, that the lipid synthesis from ocetate and carbohydrate takes place simultaneously through two different pathways, which are spatially uncoupled in cell. A presence in yeast cells of two glyoxylate shunts is proposed, which are spatially uncoupled and specific to acetyl residues of different origins.
D000085:Acetates / Q000378:metabolism; D000473:Alkanes / Q000378:metabolism; D002175:Candida / Q000378:metabolism*; D006038:Glyoxylates / Q000378:metabolism; D007700:Kinetics; D008055:Lipids / Q000096:biosynthesis*
D000085:Acetates; D000473:Alkanes; D006038:Glyoxylates; D008055:Lipids
Vkliuchenie C14 v lipidnye fraktsii drozhzhei Candida guilliermondii pri vyrashchivanii kletok v prisutstvii razlichnykh istochnikov ugleroda.