摘要
应用链霉素抗性筛选法 ,将经过紫外线诱变处理的纳他霉素生产菌———褐黄孢链霉菌 (Streptomycesgilvosporeus)ATCC1 332 6的孢子涂布在含有链霉素最小抑制浓度 (0 6μg mL)的培养基平板上 ,获得了 1 2 2株链霉素抗性突变株。其中纳他霉素产量高于出发菌株的有1 3株 ,产量阳性效率达到 1 0 6 % ,同时获得了产抗生素能力为出发菌株 1 46倍的突变株SG 56。
A method of streptomycin resistance screening was applied to improve t he productivity of Natamycin by Streptomyces gilvosporeus(ATCC13326) The sp ores treated with UV light were regenerated on agar plates containing 0 6μg/mL stre p tomycin 122 streptomycin resistant(str) mutants were obtained The Natamycin y iel ds of 13 mutants were higher than the original strain The mutants with high Na t amycin productivity were screened at a high frequency(10 6%) The highest one that demonstrated 1 46 times that of the original strain in Natamy cin productivity was obtained
出处
《微生物学通报》
CAS
CSCD
北大核心
2003年第4期29-32,共4页
Microbiology China
基金
天津市自然科学基金资助项目 (No 0 136 0 9511)
关键词
褐黄孢链霉菌
链霉素抗性筛选法
诱变
纳他霉素
Streptomyces gilvosporeus, Method of streptomycin resistance screening, Muta genesis, Natamycin