Ar^+激光对枯草芽孢杆菌作用的频率依赖性

Frequency dependence of Ar^+ laser action on withered grass bacilli

Ar+激光在生物学、医学方面有广泛的应用。因为Ar+激光一般有9条不同频率的输出谱线,所以需要分别研究这9条谱线对生物的刺激作用。我们采用Ar+激光的9条输出谱线（454.5～514.5nm）分别照射枯草芽孢杆菌,选择最佳照射剂量为3×10-2J/cm2,得出了Ar+激光对枯草芽孢杆菌作用的频率依赖性。实验结果表明,随着Ar+激光波长的增大（从蓝光区到绿光区）,其对枯草芽孢杆菌的促进繁殖作用逐渐减小,以至产生抑制繁殖的作用。这一结果对Ar+激光在生物学、医学方面的应用有重要的指导意义。

Withered grass bacilli were irradiated respectively by nine output spectral lines (454.5-514.5nm) of Ar+ laser with an irradiation dosage of 3×10-2J/cm2. The frequency dependence of Ar+ laser action on withered grass bacilli was obtained. The experimental results showed that along with the increase of Ar+ laser wavelength (from blue light region to green light region), the promoting reproductive action of Ar+ laser on the withered grass bacilli gradually decreases and finally the restraint reproductive action waa produced.