Integration of Chemical Methods and Biomarkers for Assessment of Chlorimuron-Ethyl Bioavailability in Soil
文献类型:期刊论文
作者 | Ren Wenjie; Wang Meie; Zhou Qixing; Teng Ying |
刊名 | PEDOSPHERE
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出版日期 | 2016-06 |
卷号 | 26期号:3页码:273-281 |
关键词 | chemical extraction environmental risk organic pollutants organic solvent peroxidase activity phosphate buffer solution toxicity test |
英文摘要 | Bioavailability is a critical factor for assessing the environmental risk of organic pollutants in soil. In this study, extractions with 3 different solvents, including 2 aqueous solutions, calcium chloride (CaCl2) and a phosphate buffer solution (PBS), and a mixture of aqueous solution and organic solvent, a PBS-methanol (8:2, volume/volume) mixture (PBS-M), were performed to assess the bioavailability of chlorimuron-ethyl in soil in comparison to a battery of toxicity tests in wheat seedlings. The results indicated that the peroxidase (POD) activity in wheat leaves after 7 d of exposure was one of the sensitive biomarkers of chlorimuron-ethyl in soil. The extractability of chlorimuron-ethyl by all the 3 solvents decreased with exposure time, and the rate of decrease of the PBS-M extraction between 1 and 7 d of exposure was substantially higher than those of the aqueous solution extractions. Chlorimuron-ethyl gradually changed from a water-soluble form into a soil organic matter (SOM)-bound form in the soil. The PBS extraction correlated best with the POD activity in the leaves after 7 d of exposure. |
源URL | [http://ir.rcees.ac.cn/handle/311016/35611] ![]() |
专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
推荐引用方式 GB/T 7714 | Ren Wenjie,Wang Meie,Zhou Qixing,et al. Integration of Chemical Methods and Biomarkers for Assessment of Chlorimuron-Ethyl Bioavailability in Soil[J]. PEDOSPHERE,2016,26(3):273-281. |
APA | Ren Wenjie,Wang Meie,Zhou Qixing,&Teng Ying.(2016).Integration of Chemical Methods and Biomarkers for Assessment of Chlorimuron-Ethyl Bioavailability in Soil.PEDOSPHERE,26(3),273-281. |
MLA | Ren Wenjie,et al."Integration of Chemical Methods and Biomarkers for Assessment of Chlorimuron-Ethyl Bioavailability in Soil".PEDOSPHERE 26.3(2016):273-281. |
入库方式: OAI收割
来源:生态环境研究中心
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