Effect of Frequency-doubling Pulse Nd:YAG Laser on Microbial Mutation

摘要

We are going to report the mutagenic effect of frequency-doubling pulse Nd:YAG laser (532nm) on microbe. After irradiation with pulse laser, mutants of abscisic acid producing strains and erythromycin producing strains were obtained, one of which could produce 62.1% and 57% more products than control, respectively. In the study of mutagenization of Spirulina platensis caused by pulse laser, we selected a high photosynthetic strain, with improved productivity of protein and exocellular ploysaccharides of 12% and 246%, respectively. The experimental results indicate that frequency-doubling pulse laser(532nm) is a potential new type of physical mutagenic factor.