Uptake, phytovolatilization, and interconversion of 2,4-dibromophenol and 2,4-dibromoanisole in rice plants

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Uptake, phytovolatilization, and interconversion of 2,4-dibromophenol and 2,4-dibromoanisole in rice plants
	Zhang, Qing; Kong, Wenqian; Wei, Linfeng; Wang, Yingjun; Luo, Yadan; Wang, Pu; Liu, Jiyan; Schnoor, Jerald L.; Jiang, Guibin
刊名	ENVIRONMENT INTERNATIONAL
	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.
内容类型	期刊论文
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.