Uptake, phytovolatilization, and interconversion of 2,4-dibromophenol and 2,4-dibromoanisole in rice plants
文献类型：期刊论文
| 作者 | Zhang, Qing; Kong, Wenqian; Wei, Linfeng; Wang, Yingjun ; Luo, Yadan; Wang, Pu; Liu, Jiyan; Schnoor, Jerald L.; Jiang, Guibin
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| 刊名 | ENVIRONMENT INTERNATIONAL
 |
| 出版日期 | 2020-09 |
| 卷号 | 142页码:1-13 |
| 关键词 | 2,4-Dibromophenol and 2,4-Dibromoanisole Methylation process Demethylation process Rice plants Phytovolatilization |
| ISSN号 | 0160-4120 |
| 英文摘要 | The structural analogs, 2,4-dibromophenol (2,4-DBP) and 2,4-dibromoanisole (2,4-DBA), have both natural and artificial sources and are frequently detected in environmental matrices. Their environmental fates, especially volatilization, including both direct volatilization from cultivation solution and phytovolatilization through rice plants were evaluated using hydroponic exposure experiments. Results showed that 2,4-DBA displayed stronger volatilization tendency and more bioaccumulation in aboveground rice tissues. Total volatilized 2,4-DBA accounted for 4.74% of its initial mass and was 3.43 times greater than 2,4-DBP. Phytovolatilization of 2,4-DBA and 2,4-DBP contributed to 6.78% and 41.7% of their total volatilization, enhancing the emission of these two contaminants from hydroponic solution into atmosphere. In this study, the interconversion processes between 2,4-DBP and 2,4-DBA were first characterized in rice plants. The demethylation ratio of 2,4-DBA was 12.0%, 32.0 times higher than methylation of 2,4-DBP. Formation of corresponding metabolites through methylation and demethylation processes also contributed to the volatilization of 2,4-DBP and 2,4-DBA from hydroponic solution into the air phase. Methylation and demethylation processes increased phytovolatilization by 12.1% and 36.9% for 2,4-DBP and 2,4-DBA. Results indicate that phytovolatilization and interconversion processes in rice plants serve as important pathways for the global cycles of bromophenols and bromoanisoles. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44853]  |
| 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 | Zhang, Qing,Kong, Wenqian,Wei, Linfeng,et al. Uptake, phytovolatilization, and interconversion of 2,4-dibromophenol and 2,4-dibromoanisole in rice plants[J]. ENVIRONMENT INTERNATIONAL,2020,142:1-13. |
| APA | Zhang, Qing.,Kong, Wenqian.,Wei, Linfeng.,Wang, Yingjun.,Luo, Yadan.,...&Jiang, Guibin.(2020).Uptake, phytovolatilization, and interconversion of 2,4-dibromophenol and 2,4-dibromoanisole in rice plants.ENVIRONMENT INTERNATIONAL,142,1-13. |
| MLA | Zhang, Qing,et al."Uptake, phytovolatilization, and interconversion of 2,4-dibromophenol and 2,4-dibromoanisole in rice plants".ENVIRONMENT INTERNATIONAL 142(2020):1-13. |
入库方式： OAI收割
来源：生态环境研究中心
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