抗生素是临床应用最广泛的抗菌药物,它的问世给人类生命延长带来第二次的飞跃,其重要意义是不言而喻的.但长期使用之后,细菌逐渐产生抗药性,在治疗上造成很大的麻烦,给药物工作者提出不断寻找新抗生素的要求.事物的发展总不是一帆风顺的,抗生素的筛选也不例外,六十年代以前从土壤中分离到许多产生有实用价值的抗 Antibiotics is the most widely used antimicrobial drug in clinical practice, and the advent of antibiotics has brought a second leap in the prolongation of human life, and its significance is self-evident. However, after long-term use, bacteria gradually develop resistance and cause treatment A lot of trouble for drug workers to ask for constant search for new antibiotics.The development of things is not always easy, antibiotics screening is no exception, from the soil before the sixties to produce a lot of useful practical anti-resistance