期刊论文

Liu, H.

中文

应用生态学报

1001-9332

2004

15

3

493-496

国家教育部科学技术研究重点项目（2000-156-00209）;国家教育部科学技术研究重点项目（2000-156-00209）;国家科技部中法先进研究计划资助项目（PRAE00-04）

本校为第一机构

用蚕豆根尖微核技术研究了Cd~(2+)单因子以及与表面活性剂、模拟酸雨复合污染时对植物细胞的毒性作用．结果表明，Cd~(2+)浓度在O～10．O mg·L~(-1)范围内，对蚕豆胚根细胞微核的形成有强烈的诱导作用，Cd~(2+)浓度6．0 mg·L~(-1)时的细胞微核率为13．85％0，对照组的微核率为4．53％0，此时污染影响指数(PI)为3．06；当环境中存在表面活性剂LAS 1．O mg·L~(-1)或pH值降到4．5和3．5时，同一Cd2'浓度下，蚕豆根尖细胞微核率、PI降低。同时伴有核变形，细胞中颗粒物增多，胚根组织不容易分散等症状，根的生长受到抑制。说明表面活性剂、酸雨对Cd~(2+)的毒性有协同作用．pH 3．5的酸雨环境中CA...

The toxicity of Cd2+ and its combination with surfactant or simulated acid rain to Vicia faba root tip cell was studied by using micro-nucleus technique. The results showed that the formation of micro-nucleus in Vicia faba root tip cell was strongly induced by Cd2+ in its concentration of 0-10.0 mg.L-1. The micro-nucleus rate was 13.85@1000 at 6.0 mg.L-1Cd2+, 4.53@1000 at 0 mg.L-1Cd2+, and the pollution index (PI) was 3.06. The micro-nucleus ratio and PI decreased when the accompanied surfactant LAS was also presented or the pH values decreased to 4.5 or 3.5. In the meantime, many deformed nuc...