It produces an antibiotic substance which can obviously inhibit Pyricularia Grisea. To use strain A11 as starting strain, some high yield mutant strains are obtained after UV irradiation, DES treatment and Microwave irradiation.

• 本研究通过对诺卡氏菌株A11的诱变改良，紫外线(UV)、硫酸二乙酯(DES)、微波(MV)三种诱变处理均提高了对稻瘟病菌的抑制效果。