Bioconcentration kinetics of PCBs in various parts of the lifecycle of the tadpoles Xenopus laevis
文献类型：期刊论文
| 作者 | Zhao Rong-biao ; Sun Da-yu ; Fu Shan ; Wang Xiao-fei ; Zhao Ru-song |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
 |
| 出版日期 | 2007 |
| 卷号 | 19期号:3页码:374-384 |
| 关键词 | PCBs tadpole Xenopus laevis bioconcentration exposure kinetics |
| 英文摘要 | Polychlorinated biphenyls (PCBs) in Xenopus laevis have been reported only for a few congeners. Additionally, there is very little information on the ability of Xenopus laevis to bioconcentrate PCBs. To address these issues, the tadpole Xenopus laevis was exposed to Aroclor1254 mixtures in water at room temperature for 110 d followed by an additional 110 d of nonspiked PCBs in the water for the control group. During the whole process, bioconcentration factors (BCFs) of PCBs ranged from 1180 to 15670. For most PCB congeners, the highest and lowest bioconcentrations of the kinetic curves were found to be remarkably simultaneous, respectively. All 141 PCB congeners under the same experimental conditions had no linear correlation on the 1gBCF versus 1gK(ow) relationship. The relationship between 1gBCFs and 1gK(ow) followed a parabolic pattern indicative of selective bioconcentration, suggesting that the kinetic curves of the PCB congeners observed in the lifecycle of the tadpoles may be concentrated due to the amphibian special species and internal metabolism. In contrast, 1gBCFs for PCBs were inversely related to 1gK(ow), suggesting that a metabolism of the higher K-ow' PCB congeners occurred. These results support the author's conclusion that the tadpole Xenopus laevis plays major roles in the bioconcentration of PCB congeners, and demonstrated that the exposure kinetic curves of PCB congeners are complex. Besides the amphibian metamorphous development, the lifecycle of the tadpole Xenopus laevis also may be of importance in determining the bioconcentration of PCB congeners. |
| WOS记录号 | WOS:000244988800021 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/22421]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhao Rong-biao,Sun Da-yu,Fu Shan,et al. Bioconcentration kinetics of PCBs in various parts of the lifecycle of the tadpoles Xenopus laevis[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2007,19(3):374-384. |
| APA | Zhao Rong-biao,Sun Da-yu,Fu Shan,Wang Xiao-fei,&Zhao Ru-song.(2007).Bioconcentration kinetics of PCBs in various parts of the lifecycle of the tadpoles Xenopus laevis.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,19(3),374-384. |
| MLA | Zhao Rong-biao,et al."Bioconcentration kinetics of PCBs in various parts of the lifecycle of the tadpoles Xenopus laevis".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 19.3(2007):374-384. |
入库方式： OAI收割
来源：生态环境研究中心
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