Relation between Fatty Acid Composition of Cellular Phospholipids and the Excretion of L-Glutamic Acid by a Glycerol Auxotroph of Corynebacterium alkanolyticum |
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Authors: | Masakazu Kikuchi Yoshio Nakao |
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Affiliation: | Microbiological Research Laboratories, Central Research Division, Takeda Chemical Industries, Ltd., Osaka, Japan |
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Abstract: | 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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