期刊
ENVIRONMENTAL SCIENCE & TECHNOLOGY
卷 53, 期 9, 页码 4940-4947出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.est.8b07189
关键词
-
资金
- Natural Science Foundation of China (NSFC) [21737003, 21577067, 21677081]
- 111 Program, Ministry of Education, China [T2017002]
- Tianjin Municipal Science and Technology Commission [16PTSYJC00020, 17JCYBJC23200]
- Yangtze River Scholar Program
The uptake, accumulation, and long-distance transport of organophosphate esters (OPEs) in four kinds of plants were investigated by hydroponic experiments. The uptake kinetics (k(1,root)) of OPEs in plant roots were determined by the binding of OPEs with the proteins in plant roots and apoplastic sap for the hydrophobic compounds, which correlated well with the transpiration capacity of the plants for the hydrophilic compounds. However, the accumulation capacity of OPEs in plant root was controlled by the partition of OPEs to plant lipids. As a consequence, OPEs were taken up the fastest in wheat root as a result of its highest protein content but least accumulated as a result of its lowest lipid content. The translocation factor of the OPEs decreased quickly with the hydrophobicity (log K-ow) increasing, suggesting that the hydrophobic OPEs were hard to translocate from roots to shoots. The hydrophilic OPEs, such as tris(2-chloroisopropyl) phosphate and tris(2-butoxyethyl) phosphate, were ambimobile in the plant xylem and phloem, suggesting that they could move to the edible parts of plants and enhanced risk to human health.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据