1973 Volume 37 Issue 3 Pages 509-514
Relation between fatty acid composition of cellular phospholipids and the excretion of L-glutamic acid was investigated using Corynebacterium alkanolyticum GL-21 (a glycerol auxotroph).
When grown on n-hexadecane, the proportion of unsaturated fatty acids was higher in L-glutamic acid-accumulating cells than in L-glutamic acid-nonaccumulating cells. When grown on fructose or acetic acid, the reverse relation was observed. Moreover, cells containing no oleic acid produced L-glutamic acid from n-pentadecane.
These results suggest that the membrane permeability to L-glutamic acid is not always controlled by the cellular content of unsaturated fatty acids.
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