中文摘要：

为探索除草剂阿特拉津对红耳龟胚胎发育及肝脏、肾脏组织学变化的影响，本试验模拟不同含量阿特拉津污染环境，设置对照组（蒸馏水）和0．005mg／cm2、0．025mg／cm2、0．125mg／cm23个试验组，在温度（30±0．5）℃、相对湿度为85％～90％的条件下孵化红耳龟受精卵，检测孵化率、孵化期及肝、肾脏组织结构变化指标。结果表明，0．005mg／cm2、0．025mg／cm2的阿特拉滓对孵化率和孵化期没有显著影响，0．125mg／cm2组孵化期显著延长（P〈0．01）；试验处理组肝脏和肾脏有不同程度的损伤，0．005mg／cm2组主要表现增生性病变，0．025mg／cm2和0．125mg／cm2组损伤作用加重，主要表现为退行性病变。试验结果说明，阿特拉津长时间作用红耳龟受精卵可能导致胚胎发育迟缓，并导致肝脏和肾脏组织病变。

英文摘要：

To investigate the effects of atrazine on embryonic development and histological changes in liver and kidney in red-eared turtle （Trachemys scripta elegans）, the fertilized eggs of red-eared turtle were in- cubated in the water containing atrazine at a dose of 0. 005 mg/cm2 （low-dose group）, 0. 025 mg/cm2 （mid- dle-dose group）, 0. 125 mg/cm2 （high-does group） and distilled water （control group） at （30±0.5） ℃ un- der the relative humidity range of 85 to 90 percent in a laboratory. During the incubation, the hatching rate, incubation period and histological changes in liver and kidney were observed. The results showed that the incubation period was significantly prolonged in high-dose group whilst the incubation period and hatching rate were no significant effect in both low-dose and middle-dose groups. Also the damaged liver and kidney tissues had hyperplastic lesions in low-dose group and the degenerative changes in the middle- dose and high-dose groups. The findings illustrated that atrazine may lead to developmental delay in the red-eared turtle embryo and to histological lesions in the kidney and liver.