土壤分离苏云金芽胞杆菌的方法比较

摘要

苏云金芽胞杆菌（Bacillus thuringiensis，简称Bt）是世界上应用最广的微生物农药，通过比较三种经典的从土壤样品中分离Bt的方法，发现NaAC-抗生素法的分离效果最好，最高分离率5.06%，平均达到2.82%，为大规模从土样中分离Bt奠定了基础。%Bacillus thuringiensis (Bt) is the most widely used microbial pesticides in the world. This paper com-pared three classic Bt isolated methods and found that the best one was NaAC-antibiotic methods,the maximum isola-tion rate was 5.06%,the average was 2.82%. It established the foundation for the further research on the large-scale Bt isolated from soil.