To explore the genetic toxicological action in germinated Solanum tuberosum, an experiment on the micronucleus frequence of maceration extract of germinated Solanum tuberosum had been carried out with the micronucleus test technique of Vicia faba root-tip cell. The results showed that when the concentrations of maceration extract are 25 g/L, 50 g/L, 100 g/L and 200 g/L, the micronucleus frequence of Vicia faba root-tip cell was 17.21‰, 23.53‰, 29.55‰, 39.40‰ separately. There existed significant differences when compared with negative control, but didn′t cause significant differences as for the non-germinated Solanum tuberosum′s maceration extract with the corresponding concentration to the formation of the micronucleus frequence of Vicia faba root-tip cell when compared with the negative control. Thus,the experiment showed that the formation of micronucleus might be induced greatly by the maceration extract in germination Solanum tuberosum. This technique can be used to test the genetic toxicological action of germinated Solanum tuberosum.%为探讨发芽马铃薯的遗传毒理作用，用蚕豆根尖细胞微核监测技术对发芽马铃薯浸渍液的微核率进行了测定，结果表明：发芽马铃薯浸渍液的质量浓度为25 g/L、50 g/L、100 g/L、200 g/L时，蚕豆根尖细胞微核率分别为17.21‰、23.53‰、29.55‰、39.40‰，与阴性对照组相比存在显著性差异；相应浓度的未发芽马铃薯浸渍液对蚕豆根尖细胞微核率的形成与阴性对照组相比无显著性差异.实验结果提示发芽马铃薯浸渍液能显著诱发蚕豆根尖细胞微核的形成，利用蚕豆根尖细胞微核技术可以监测发芽马铃薯的遗传毒理作用.
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