从双元质粒系统农杆菌中制备微型质粒

国内农杆菌微型质粒ＤＮＡ提取较成功的方法尚未见报导。本法试提供一种快速、高效的提取方法。采用此法，可以避免小量提取繁琐的步骤，操作条件温和，方法简单，易于重复，生产率高，值得推广。

Making Microplasmid from Twin Plasmid System in A.tumefaciens

It has not been reported at home the successful way extracting DNA from microplasmid in A.tumefaciens.A fast,high efficient way is tried being provided here to avoid complex procedure previously.By this simple way that is easy to be repeated,the operation condition is mild and productivity is high,so it is worth popularizing.