Studies of Cytogenetic Toxic Effect of As2O3 on Vicia Faba Root Tip Cells in Vivo
三氧化二砷（As2O3）对蚕豆根尖毒性效应的细胞遗传学研究 Studies of Cytogenetic Toxic Effect of As2O3 on Vicia Faba Root Tip Cells in Vivo

The cytogenetic toxic effects of different concentration of As 2O 3 within different time on the cell of Vicia Faba root tip were studied.The results indicate that the different concentrations of As 2O 3 can induce high frequency of micronucleus and chromosome aberration.Besides,it can accumulate the metaphases in mitosis efficiently and prevent the cells from continuing their cell cycle.It shows that As 2O 3 has marked cytogenetic toxic effect on the root tip cells of Vicia Faba ,and effect of accumulating the metaphases in mitosis.