摘要 : The thraustochytrid-like microorganism,strain 12B,cultivated in peptone,yeast extract,and 8% (w/v) glucose in 50% (v/v) seawater,accumulated docosahexaenoic acid (DHA)-rich triacylglycerol (TAG) at 67% of total lipid.When these TA... 展开 The thraustochytrid-like microorganism,strain 12B,cultivated in peptone,yeast extract,and 8% (w/v) glucose in 50% (v/v) seawater,accumulated docosahexaenoic acid (DHA)-rich triacylglycerol (TAG) at 67% of total lipid.When these TAG-accumulated cells were cultivated in glucose-deficient medium,dry cell weight (3 mg per ml culture) increased approximately 3-fold relative to baseline but the TAG/total lipid decreased to 5%.At the same time,the amount of phospholipid (5 mg) per whole culture also increased 3-fold.Hence,phospholipid/ total lipid increased from 13% to 67%.High levels of DHA (more than 50% of total) were maintained in phosphatidylcholine. 收起