Influence of lead on atrazine uptake by rice (Oryza sativa L.) seedlings from nutrient solution
文献类型：期刊论文
| 作者 | Zhu, YG; Su, YH |
| 刊名 | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
 |
| 出版日期 | 2005 |
| 卷号 | 12期号:1页码:21-27 |
| 关键词 | Atrazine Bioconcentration Factor Herbicides Lead Rice Seedlings Uptake |
| DOI | 10.1065/espr2004.12.233 |
| 英文摘要 | Background. Atrazine is a widely used herbicide, and its persistence in soil and water causes environmental concerns. In the past, plat uptake processes are mainly investigated for single contaminants. However, in many cases, contaminants co-exist in environmental matrix, such as soil, and plant uptake of one contaminant may be influenced by its co-existing ones. Methods. The uptake of atrazine by rice seedlings (Oryza sativa L.) from nutrient solution through the roots was investigated in a solution culture, over an exposure period of 4 weeks. Atrazine accumulation in plant tissues was determined by gas chromatography, and lead was determined using atomic absorption spectrometry. Results and Discussion. With different ratios of atrazine and Pb2+ concentrations in solution, the observed atrazine concentrations in shoots and roots varied significantly. In atrazine-Pb2+ mixture systems, the added Pb2+ either increased or decreased the concentrations or BCFs of atrazine in seedlings (relative to those without Pb2+), depending on the atrazine-Pb2+ ratio in nutrient solution. The enhanced atrazine uptake results presumably from atrazine-Pb2+ complex formation. The reduced atrazine uptake, which occurred mainly at high atrazine concentrations, is attributed to atrazine toxicity that inhibited seedling growth and transpiration. Conclusion. The formation of atrazine-Pb2+ complex both in the solution and within plant tissues may affect the accumulation of both contaminants by rice plants. |
| 学科主题 | Environmental Sciences & Ecology |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS记录号 | WOS:000226735600005 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/23345]  |
| 专题 | 生态环境研究中心_土壤环境科学实验室 |
| 推荐引用方式 GB/T 7714 | Zhu, YG,Su, YH. Influence of lead on atrazine uptake by rice (Oryza sativa L.) seedlings from nutrient solution[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2005,12(1):21-27. |
| APA | Zhu, YG,&Su, YH.(2005).Influence of lead on atrazine uptake by rice (Oryza sativa L.) seedlings from nutrient solution.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,12(1),21-27. |
| MLA | Zhu, YG,et al."Influence of lead on atrazine uptake by rice (Oryza sativa L.) seedlings from nutrient solution".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 12.1(2005):21-27. |
入库方式： OAI收割
来源：生态环境研究中心
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