C02激光辐照对酿酒酵母菌的诱变作用

应用红外ＣＯ_２激光对甘蔗糖蜜工业性生产用酿酒酵母菌Ｓａｃｃｈａｒｏｍｙｃｅｓ ｃｅｒｅｖｉｓｉａｅ ＡＳ２．１１８９进行辐照处理，经酵母菌糖蜜酒精发酵试验，发现红外ＣＯ_２激光对酿酒酵母菌具有诱变作用，并初步筛选到产乙醇含量有较大变化的辐照变异菌株；同时，通过对这些辐照变异菌株的乙醇脱氢酶同工酶的比较分析，进一步证实了红外ＣＯ_２、激光对酿酒酵母菌的诱变作用．从而为工业上利用红外ＣＯ_２激光对酿酒酵母菌进行诱变育种展现新的前景。

A FUNCTION OF MUTAGENESIS oN SACCHAROMYCES CEREISIAE IRRADIATED BY CO2,LASER

In this paper, by analyzing the ethanol prepuced by Saacharomyces cereisiae irradiated by refrared CO_2 laser from molasses in Gas Chromatography, we have illustrated the results that CO2, laser can give rise to a mutagenesis effect Initially, we have screened several variation strains that produce ethanol abnormally. In the meantime, by the contrast of isozymes of alcohol dehydrogenase from the Yeast irradiated by CO2, laser, we have a further evidence that CO2, laser can cause mutagenesis effect on Saacharomyces cereisiae. This will present a new prospect for the mutagenesis breed by CO2, laser in industry.