THE UV MUTAGENESIS OF BEAUVERIA BASSIANA AND THE SCREENING OF A HIGH CHITINASW PRODUCING MUTANT STRAIN
球孢白僵菌的紫外诱变及几丁质酶高产菌株的筛选

he conidia of Beauveria bassiana 1316 were mutagenized by UV treatmentfor 20 minutes and 30 minutes alternately.A high chitinase-producing mutant strain wasobtained by screening with the method of transparent zones and chitinase activity measure-ment of culture filtrate. The chitinase activity of the mutant was raised 3 times as comparedwith the origiral strain,The high chitinase-producing ability of the mutant could be inhe-rited after several subcultures.