光量子流面密度σ为2.13×10~(17)/mm~2s的扩展的CO_2激光束束温达80℃时,有机物即可碳化;会聚的He-Ne激光束σ为4.78×10~(14)/mm~2s时温升仅3℃;它们均能使生物体诱变。激光作为一种引起微生物特性诱变的手段,在苏芸金杆菌(Bt)、产黄青霉菌、龟裂链霉菌、啤 The organic matter can be carbonized when the temperature of the extended CO 2 laser beam with the light quantum flow density σ of 2.13 × 10 ~ (17) / mm ~ 2s reaches 80 ℃. The converged He-Ne laser beam σ is 4.78 × 10 ~ (14) ) / mm ~ 2s temperature rise only 3 ℃; they can make organisms mutagenesis. Laser as a means of inducing microbial characteristics of mutagenesis in Bacillus thuringiensis (Bt), Penicillium chrysogenum, Streptomyces fission, beer