| 利用隆线趋光行为评价铬的生物毒性 |
| |
| 引用本文： | 吴永贵,黄建国,袁玲.利用隆线趋光行为评价铬的生物毒性[J].应用生态学报,2005,16(1):171-174. |
| |
| 作者姓名： | 吴永贵 黄建国 袁玲 |
| |
| 作者单位： | 1. 华南农业大学资源环境学院,广州,510642;西南农业大学资源环境学院,重庆,400716
2. 西南农业大学资源环境学院,重庆,400716 |
| |
| 基金项目： | 重庆市科委应用基础重点资助项目(20027301). |
| |
| 摘 要： | 报道了以隆线单克隆Dc42为生物监测器,利用其趋光行为变化评价铬生物毒性的方法.结果表明,隆线趋光行为抑制率能较好地反映水中铬的污染程度.在重铬酸钾标准毒物溶液中，趋光指数与Cr6+的浓度呈极显著负相关(R2=0.8089,P<0.001),Cr6+浓度的检测下限为0.056 mg·L-1,远低于LC50和EC50,平均精度达到5.46%,说明趋光指数法用于监测化学物质生物毒性灵敏度高、精确可靠.
|
| 关 键 词： | 铬 隆线溞 趋光行为 生物监测 |
| 文章编号： | 1001-9332(2005)01-0171-04 |
| 收稿时间： | 2003-11-18 |
| 修稿时间： | 2003年11月18 |
Phototactic behavior of Daphnia carinata as an indicator of chromium biotoxicity |
| |
| WU Yonggui,HUANG Jianguo,YUAN Ling.Phototactic behavior of Daphnia carinata as an indicator of chromium biotoxicity[J].Chinese Journal of Applied Ecology,2005,16(1):171-174. |
| |
| Authors: | WU Yonggui HUANG Jianguo YUAN Ling |
| |
| Institution: | College of Resources and Environment, South China Agricultural University, Guangzhou. |
| |
| Abstract: | The study on the phototactic behavior of Daphnia carinata clone Dc42 as an indicator of chromium biotoxicity showed that the phototaxis inhibition ratio (Rpi) of D. carinata could better indicate the chromium status in water. There was a negative linear correlation between phototactic index (Ip) and Cr6+ concentration in standardized K2Cr2O7 solutions (R2=0.8089, P<0.001). The detection limit of Cr6+ by Ip was 0.056 mg x L(-1), much lower than that of LC50 or EC50, and the mean precision index for detection reached up to 5.46%, which suggested the sensitivity, precision and reliability of this method in monitoring chemicals biotoxicity. |
| |
| Keywords: | Chromium Daphnia carinata Phototactic behavior Biomonitor |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《应用生态学报》浏览原始摘要信息 |
| 点击此处可从《应用生态学报》下载免费的PDF全文 |
|
