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本文观察了羧乙基倍半锗氧化物、亚硒酸钠、β-胡罗卜素、维生素c对直接诱变剂甲基硝基亚硝基胍(MNNG)诱发TA100菌株回复突变作用的抑制效果。有机锗和硒在浓度10~(-6)M-10~(-2)M时,它们的抑制率分别为54％-65.7％和33.38％-78.60％。β-胡罗卜素在浓度10~(-7)-10~(-3)M时,其抑制率为21.18％-82.18％。维生素c浓度在
In this paper, we observed the inhibitory effect of carboxyethyl sesquioxide, sodium selenite, beta-carotene and vitamin C on the reversion of TA100 induced by the direct mutagen methyl nitrosoguanidine (MNNG) effect. The inhibitory rates of organic germanium and selenium were 54% -65.7% and 33.38% -78.60% at concentrations of 10 -6 M-10 -2 M, respectively. The inhibitory rate of β-carotene was 21.18% -82.18% at the concentration of 10 -7 -7 -10 -3 M. Vitamin c concentration in the