A strain of Cephaiosporium sp which produced docosahexaenoic acid (DHA) was screened. It contained 21.23% oil in its dry cell.The DHA made up 2.51% of the total fatty acid and the eicosapentaenoic acid (EPA) 0.41%.The unsaturated fatty acid made up 80% of the total fatty acid. A strain of Cunningamella sp. and a strain of Mucor sp. containing DHA and EPA were also found for the first hme.The yield of DHA in mycelium of Cephalosporium sp.was related to culture temperature.At 20℃ for 10 days, the yield of DHA...