论文部分内容阅读
用中国仓鼠Ｖ７９细胞次黄嘌呤—鸟嘌呤磷酸核糖基转移酶（ＨＰＲＧ）位点正向突变试验方法（Ｖ７９／ＨＰＲＴＳＹＳＴＥＭ）检测了不同剂量的￣（６０）Ｃｏ－ｙ射线诱发的Ｖ７９细胞ＨＰＲＴ位点的突变频率。结果表明，当剂量率为１．１６Ｇｒ／ｍｉｎ，剂量范围为０．５～５．０Ｇｒ时，ＨＰＲＴ位点的突变频率为３．２—３５．４个突变体／１０￣６细胞，有明显的剂量依赖关系。
Different doses of ~ (60) Co-γ-ray induced HPRT sites in V79 cells were detected using the Chinese Hamster V79 cell hypoxanthine-guanine phosphoribosyltransferase (HPRG) site forward mutation assay (V79 / HPRTSYSTEM) Point mutation frequency. The results showed that when the dose rate was 1.16Gr / min and the dosage range was 0.5-5.0Gr, the mutation frequency of HPRT locus was 3.2-35.4 mutants / 10-6 cells, which were obviously The dose-dependent relationship.