摘要
本文以蚕豆根尖为材料 ,研究不同浓度As2 O3 在不同的处理时间内对蚕豆胚根根尖的细胞遗传学毒性效应。结果表明 :不同浓度的As2 O3 在不同处理时间内均能诱发较高的微核率和染色体畸变率 ,并能有效地积累中期分裂相 ,阻止其进入后期与末期。结论是As2 O3 对蚕豆根尖细胞具有明显的细胞遗传学毒性效应 ,并具有积累有丝分裂中期细胞的效应。
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.
出处
《遗传》
CAS
CSCD
北大核心
2002年第3期305-309,共5页
Hereditas（Beijing)
基金
温州市科委科研基金资助 (N990 313-2 )
温州市"5 5 1"人才基金资助
