7MeV／uO~（6＋）离子对庆大霉素生产菌诱变的初步研究

Abstract

测定和分析了具能重离子（７ＭｅＶ／ｕＯ６＋）注入庆大霉素生产菌绛红色小单孢菌的生物诱变作用，观察了重离子对菌株的诱发突变及分离过程中菌株的形态变化。通过选育使效价提高了３０％，正突变率高达２７．５％。The mutation induction effects of deep red micromonospora (one ofQDMS reproductive Actinomyces) implanted by energetic ions (7 MeV/u O6+) weredetermined and analysed in the paper. Mutation of strains induced by heavy ionsand morphological changes of strains in separate process were observed. Efficientvalue increased by 30% and positive mutation rate was as high as 27.5% by wayof breeding.国家自然科学基