Uptake, Translocation, and Biotransformation of Organophosphorus Esters in Wheat (Triticum aestivum L.)
文献类型：期刊论文
| 作者 | Han, Ruixia; Wan, Weining; Huang, Honglin; Lv, Jitao; Zhang, Shuzhen |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2017 |
| 卷号 | 51期号:23页码:13649-13658 |
| 英文摘要 | The uptake, translocation and biotransformation of organophosphate esters (OPEs) by wheat (Triticum aestivum L.) were investigated by a hydroponic experiment. The results demonstrated that OPEs with higher hydrophobicity were more easily taken up by roots, and OPEs with lower hydrophobicity were more liable to be translocated acropetally. A total of 43 metabolites including dealkylated, oxidatively dechlorinated, hydroxylated, methoxylated, and glutathione-, and glucuronideconjugated products were detected derived from eight OPEs, with diesters formed by direct dealkylation from the parent triesters as the major products, followed with hydroxylated triesters. Molecular interactions of OPEs with plant biomacromolecules were further characterized by homology modeling combined with molecular docking. OPEs with higher hydrophobicity were more liable to bind with TaLTP1.1, the most important wheat nonspecific lipid transfer protein, consistent with the experimental observation that OPEs with higher hydrophobicity were more easily taken up by wheat roots. Characterization of molecular interactions between OPEs and wheat enzymes suggested that OPEs were selectively bound to TaGST4-4 and CYP71C6v1 with different binding affinities, which determined their abilities to be metabolized and form metabolite products in wheat. This study provides both experimental and theoretical evidence for the uptake, accumulation and biotransformation of OPEs in plants. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39454]  |
| 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 | Han, Ruixia,Wan, Weining,Huang, Honglin,et al. Uptake, Translocation, and Biotransformation of Organophosphorus Esters in Wheat (Triticum aestivum L.)[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2017,51(23):13649-13658. |
| APA | Han, Ruixia,Wan, Weining,Huang, Honglin,Lv, Jitao,&Zhang, Shuzhen.(2017).Uptake, Translocation, and Biotransformation of Organophosphorus Esters in Wheat (Triticum aestivum L.).ENVIRONMENTAL SCIENCE & TECHNOLOGY,51(23),13649-13658. |
| MLA | Han, Ruixia,et al."Uptake, Translocation, and Biotransformation of Organophosphorus Esters in Wheat (Triticum aestivum L.)".ENVIRONMENTAL SCIENCE & TECHNOLOGY 51.23(2017):13649-13658. |
入库方式： OAI收割
来源：生态环境研究中心
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