细胞突变体筛选技术起源于微生物学,应用这种方法可将带有突变基因的细胞从野生型微生物群体中分离出来,形成新的菌种。最为成功的例子是青霉突变体的筛选,其结果使青霉素的产量从0—80单位逐步提高到今天的30000单位。本世纪60年代以后,这项技术被移植到植物学中来,经过20多年的研究开始在植物品种改良中表现出很大潜力。由于已经能使大约 Cell mutation screening technology originated in the microbiology, using this method can be with the mutant gene cells from the wild-type microbial population isolated to form a new strain. The most successful example is the screening of penicillium mutants, which resulted in the gradual increase of penicillin production from 0-80 units to 30,000 units today. Since the 1960s, this technology has been transplanted to botany. After more than 20 years of research, it has shown great potential in plant variety improvement. As has been able to make about