摘要
利用除草剂施田补不同浓度、不同染毒时间对鲫鱼(Carassiusauratus)的影响,研究了其对鲫鱼红细胞核异常的诱导作用。试验结果表明,在一定浓度范围内,随浓度增高,核异型率有增高的趋势,但当浓度过高时,核异型率反而下降;在染毒时间间隔为48h时,主要表现出核异型较高的情况,而时间过长时,核异型则呈下降的趋势。从试验结果来看,施田补作为一种旱田除草剂也能诱导鱼类血细胞核发生异型,一定程度上造成水体污染。
Inducement of abnormal nucleus of erythrocytes of suckfish (Carassius auratus) by a herbicide pendimethalin is studied at various concentrations and exposure times. The results indicated that at certain range of concentrations, t he rate of abnormal nucleus increased with the concentration over a suitable ran ge instead. At the interval time of 48 hours, the rate of abnormal nucleus was h igh. In addition, when the exposure time was too long, it showed a decreasing tr end. From the results of the present test, pendimethalin could induce abnormal n ucleus of erythrocytes of suckfish and caused the water pollution in a sense as a herbicide of land field.
出处
《农业环境保护》
CAS
CSCD
北大核心
2002年第3期266-268,共3页
Agro-Environmental Protection
