Wax Ester Synthesis under Aerobic and Anaerobic Conditions in Euglena gracilis

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In Euglena gracilis distribution of radioactivity from labeled acetate into cellular components was quite different under aerobic and anaerobic conditions, and a large part of it was found in wax esters in anoxia. Wax ester synthesis from acetate was immediately stimulated about 30 times by transfer of the cells into anaerobiosis, and reversed result was shown by back to aerobiosis. Similar observations were made with labeled myristic acid, but radioactivity of labeled myristyl alcohol was incorporated solely into wax esters both in aerobiosis and anaerobiosis. The activity of reduction from fatty acids to alcohols in cell-free extract was hardly changed when the cells were transferred into anaerobiosis.

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