ABSTRACT
Objective To study the mutagenicity of water of man-made lake from Wujiang River in Jinhua. Methods The mutagenicities of water samples collected from 7 representative sampling points in man-made lake in Wujiang River were detected with micronucleus test in vicia faba root tip cells in Oct. 2000 and Oct. 2001 in Jinhua, Zhejiang. Results All water samples showed significantly higher frequencies of micronucleus with a range of 8.06‰～27.79‰ compared with 5.04‰ of negative control (P
ABSTRACT
Objective To study the genetic toxicity of magnesium sulfate to the root tip cells of Vicia faba. Methods The root tip cells of Vicia faba with 1.5-2 cm root tip were taken as the subjects and were exposed to magnesium sulfate of different concentrations(0.50%-2.00%) for 6 h. In the other test,the cells were treated with 1.5% magnesium sulfate for 2,4,6,8 and 10 hours respectively. The distilled water and potassium dichromate (0.05%) were used as the negative and positive control respectively. The micronucleus and the chromosomal aberration were calculated after 24 hours of culture. Results Compared with the negative control group,0.1%,0.15%,0.175% and 0.2% of magnesium sulfate increased the micronucleus and 0.05%,0.1%,0.15%,0.175%,0.2% of magnesium sulfate increased the chromosomal aberration in Vicia faba root tip cells. Compared with the control group (0 h),both of the micronucleus and the chromosomal aberration of Vicia faba root tip cells increased (P
ABSTRACT
Objective To study the genetic effects of lead on root tip cell of Vicia faba. Methods Micronucleus tests were conducted on root tip cell of Vicia faba treated with Pb2+ of concentrations of 0.1, 1.0, 5.0, 25.0, 50.0 mg/L for 12-36 h. Results The results indicated that the rates of micronucleus of lead-treated tip cell were significantly higher than that of the control (P
ABSTRACT
0.05). However, 0.01 and 0.1 mg/L mercury in water significantly increased the frequency of micronucleated cells in Vicia faba root tips (P