A significant increase of transformation efficiency was revcaled with the homologous plasmid isolated from recipient itself since the effects of host restriction and modification werc avoided.
来自受体菌自身的同源质粒，因克服了宿主的限制一修饰性，可以极显著地提高电转化效率。
2
Protoplast transformation and homologous chromosomal integration of s erythraea was an important path in changing gene involved in erythromycin biosynthesis.