As an original strain, Mortierella isabellina was mutated by diethyl sulfate (DES) treatment and a mutant named XM 1 was obtained.

• 以深黄被孢霉为出发菌 ；通过硫酸二乙酯 (DES)诱变 ；获得优化的变异菌株 XM-1 .；经初筛、复筛及传代实验；表明其是稳定的变异株