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[目的]观察烧烤牛肉对果蝇致突变性的影响。[方法]采用Oregon K野生型黑腹雄果蝇,分别饲养在含有烧烤牛肉的培养基中(浓度分别为0.96×10~(-3)g/mL、2.88×10~(-3)g/mL 8.64×10~(-3)g/mL),然后在普通培养基中与雌蝇交配,观察F_1代致突变情况。[结果]染毒组与空白组比较,染毒组的F_1代果蝇致突变率为1.601%。除0.96×10~(-3)g/mL组与空白组差异无统计学意义外(P>0.05);2.88×10~(-3)g/mL组和8.64×10~(-3)g/mL组与空白组比较,差异均有统计学意义(P<0.01或P<0.05)。[结论]烧烤牛肉对果蝇有明显的致突变作用。
[Objective] To observe the effect of grilled beef on the mutagenicity of Drosophila. [Method] Oregon K wild type Drosophila melanogaster was fed on the medium containing roasted beef (concentration of 0.96 × 10 -3 g / mL and 2.88 × 10 -3 g / mL 8.64 × 10 -3 g / mL), and then mating with female flies in ordinary medium to observe the mutation caused by F_1. [Result] Compared with the blank group, the mutation rate of F 1 generation flies in the infected group was 1.601%. There was no significant difference except 0.96 × 10 ~ (-3) g / mL group with blank group (P> 0.05); 2.88 × 10 ~ (-3) g / mL group and 8.64 × 10 ~ (-3) g / mL group compared with the blank group, the difference was statistically significant (P <0.01 or P <0.05). [Conclusion] Roast beef has obviously mutagenic effect on fruit flies.