Identification of Novel Organophosphate Esters in Hydroponic Lettuces(Lactuca sativa L):Biotransformation and Acropetal Translocation

Xiaoxiao Li; Yiming Yao; Hao Chen

首页> 外文期刊>Environmental Science & Technology: ES&T >Identification of Novel Organophosphate Esters in Hydroponic Lettuces(Lactuca sativa L):Biotransformation and Acropetal Translocation

【24h】

Identification of Novel Organophosphate Esters in Hydroponic Lettuces(Lactuca sativa L):Biotransformation and Acropetal Translocation

机译：Identification of Novel Organophosphate Esters in Hydroponic Lettuces(Lactuca sativa L):Biotransformation and Acropetal Translocation

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

The absorption,translocation,and biotransformation behaviors of organophosphate esters(OPEs)and diesters(OPdEs)in a hydroponic system were investigated.The lateral root was found as the main accumulation and biotransformation place of OPEs and OPdEs in lettuce.The nontarget analysis using high-resolution mass spectrometry revealed five hydroxylated metabolites and five conjugating metabolites in the OPE exposure group,among which methylation,acetylation,and palmitoyl conjugating OPEs were reported as metabolites for the first time.Particularly,methylation on phosphate can be a significant process for plant metabolism,and methyl diphenyl phosphate(MDPP)accounted for the majority of metabolites.The translocation factor values of most identified OPE metabolites are negatively associated with their predicted logarithmic octanol-water partitioning coefficient(log K_(ow))values(0.75-2.45),indicating that hydrophilicity is a dominant factor in the translocation of OPE metabolites in lettuce.In contrast,palmitoyl conjugation may lead to an enhanced acropetal translocation and those with log K_(ow)values<0 may have limited translocation potential.Additionally,OPE diesters produced from the biotransformation of OPEs in lettuce showed a higher acropetal translocation potential than those exposed directly.These results further emphasize the necessity to consider biotransformation as an utmost important factor in the accumulation and acropetal translocation potential of OPEs in plants.

著录项

来源
《Environmental Science & Technology: ES&T》 |2022年第15期|10699-10709|共11页
作者
Xiaoxiao Li; Yiming Yao; Hao Chen;
展开▼
作者单位

MOE Key Laboratory of Pollution Processes and Environmental Criteria,College of Environmental Science and Engineering,Nankai University,Tianjin 3003S0,China;

MOE Key Laboratory of Pollution Processes and Environmental Criteria,College of Environmental Science and Engineering Nankai University,Tianjin 3003S0,China;

展开▼
收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种英语
中图分类环境科学、安全科学;
关键词
organophosphate flame retardants; high-resolution mass spectrometry; nontarget analysis; plant transformation; methylation metabolism;

Identification of Novel Organophosphate Esters in Hydroponic Lettuces(Lactuca sativa L):Biotransformation and Acropetal Translocation

摘要

著录项

相关主题

期刊订阅