Shahmohammadi H R, Asgarani E, Terato H, Ide H, Yamamoto O
Graduate Department of Gene Science, Faculty of Science, Hiroshima University, Japan.
J Radiat Res. 1997 Mar;38(1):37-43. doi: 10.1269/jrr.38.37.
Lethal effects of 60Co gamma-rays, UV light, and mitomycin C on two kinds of bacteria, Halobacterium salinarium which grows in highly concentrated salt media and Thiobacillus intermedius which requires reduced sulfur compounds, were studied and compared with those on Escherichia coli B/r. D37 values for H. salinarium, T. intermedius and E. coli B/r were 393, 150, and 92 Gy, respectively, by exposure to 60Co gamma-rays. They were 212, 38, and 10 J/m2, respectively, by exposure to UV light and 2.36, 0.25, and 0.53 microgram/ml/h, respectively, by exposure to mitomycin C. Against these agents, H. salinarium was much more resistant than T. intermedius and E. coli B/r.
研究了60Coγ射线、紫外线和丝裂霉素C对两种细菌的致死效应，并与它们对大肠杆菌B/r的致死效应进行了比较。这两种细菌分别是生长在高浓度盐培养基中的盐生盐杆菌和需要还原态硫化合物的中间硫杆菌。通过暴露于60Coγ射线，盐生盐杆菌、中间硫杆菌和大肠杆菌B/r的D37值分别为393、150和92戈瑞。通过暴露于紫外线，它们的D37值分别为212、38和10焦耳/平方米，通过暴露于丝裂霉素C，它们的D37值分别为2.36、0.25和0.53微克/毫升/小时。相对于这些药剂，盐生盐杆菌比中间硫杆菌和大肠杆菌B/r更具抗性。
