cells of rhodotorula gracilis grown for 6 hrs at 2 mm hg o2 pressure when compared with cells grown for 6 hrs at 140 mm hg , show : a ) a large decrease in the level of ergosterol , b ) a significant increase in the level of oleic acid and a decrease in the levels of linoleic and linolenic acids , both in fatty acid fraction of the phospholipids and in the free fatty acids and neutral fat fractions .
C0015684
fatty acid
C0015688
free fatty acids