Negligible effects of TiO2 nanoparticles at environmentally relevant concentrations on the translocation and accumulation of perfluorooctanoic acid and perfluorooctanesulfonate in hydroponically grown pumpkin seedlings (Cucurbita maxima x C. moschata)

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

	Negligible effects of TiO2 nanoparticles at environmentally relevant concentrations on the translocation and accumulation of perfluorooctanoic acid and perfluorooctanesulfonate in hydroponically grown pumpkin seedlings (Cucurbita maxima x C. moschata)
	Xu, Zhenlan ; Tang, Tao ; Cheng, Haixiang 5; Bao, Qibei 3; Yu, Jianzhong ; Zhang, Changpeng ; Wu, Tingting 5; Zhao, Xueping ; Schramm, Karl-Werner ; Wang, Yawei 1
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2019-10-10
卷号	686 页码:171-178
关键词	TiO2 nanoparticles Pumpkin seedling Perfluoroalkyl substances Uptake Accumulation
ISSN号	0048-9697
英文摘要	Titanium dioxide nanopartides (TiO2-NPs) are widely distributed in the environment. It has been demonstrated that TiO2-NPs could modify the environmental fate and bioavailability of organic pollutants, which affects ecological risks of TiO2-NPs and organic pollutants. In this study, the uptake, translocation and accumulation of perfluorooctanoic acid (PFOA) and perfluorooclanesulfonate (PFOS) in pumpkin plants was investigated in the presence of TiO2-NPs. We reported for the first lime the negligible effects of TiO2-NPs al environmentally relevant concentrations (0.05-5 mg/L) on the uptake and accumulation of PFOA and PFOS in hydroponically grown pumpkin seedlings regardless of root, stem and leaf. This phenomenon was independent of the initial concentrations of PFOA/PFOS and TiO2-NPs in the exposure solution. Also, seedling mass and contents of chlorophyll and anthocyanin were not affected by the co-exposure. Adsorption tests demonstrated the negligible adsorption of PFOA/PFOS on TiO2-NPs in the exposure solution. Moreover, uptake of PFOA/PFOS was insensitive to aquaporin inhibitor AgNO3 but significantly inhibited by niflumic acid (anion channel blocker) and 2,4-d initrophenol (metabolic inhibitor) whereas Ti concentration in root was not affected by niflumic acid and 2,4-din itrophenol but significantly decreased by AgNO3, indicating that transport of PFOA/PFOS and TiO2-NPs were via different routes into the pumpkin seedling. It was proposed that different pathways by which TiO2-NPs and PFOA/PFOS transported into the pumpkin seedling and negligible adsorption of PFOA/PFOS on TiO2-NPs contributed to the negligible effects of TiO2-NPs on the uptake, translocation and accumulation of PFOA/PFOS in pumpkin seedlings. In total, this work would improve our understanding of the ecological risks of TiO2-NPs in the environment. (C) 2019 Published by Elsevier B.V.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/42564]
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
作者单位	1.Tech Univ Munich, Wissensch Zentrum Weihenstephan Ernahrung & Landn, Dept Biowissensch, Weihenstephaner Steig 23, D-85350 Freising Weihenstephan, Germany 2.Ningbo Coll Hlth Sci, Ningbo 315100, Zhejiang, Peoples R China 3.Quzhou Univ, Coll Chem & Mat Engn, Dept Environm Engn, Quzhou 324000, Peoples R China 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China 5.Zhejiang Acad Agr Sci, State Key Lab Qual & Safety Agroprod Prepared, Key Lab Pesticide Residue Detect, Minist Agr,Inst Qual & Stand Agroprod, Hangzhou 310021, Zhejiang, Peoples R China 6.Helmholtz Ctr Munich, Natl Res Ctr Environm Hlth GmbH, Mol EXposom MEX, Ingolstadter Landstr 1, D-85764 Neuherberg, Germany
推荐引用方式 GB/T 7714	Xu, Zhenlan,Tang, Tao,Cheng, Haixiang,et al. Negligible effects of TiO2 nanoparticles at environmentally relevant concentrations on the translocation and accumulation of perfluorooctanoic acid and perfluorooctanesulfonate in hydroponically grown pumpkin seedlings (Cucurbita maxima x C. moschata)[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,686:171-178.
APA	Xu, Zhenlan.,Tang, Tao.,Cheng, Haixiang.,Bao, Qibei.,Yu, Jianzhong.,...&Wang, Yawei.(2019).Negligible effects of TiO2 nanoparticles at environmentally relevant concentrations on the translocation and accumulation of perfluorooctanoic acid and perfluorooctanesulfonate in hydroponically grown pumpkin seedlings (Cucurbita maxima x C. moschata).SCIENCE OF THE TOTAL ENVIRONMENT,686,171-178.
MLA	Xu, Zhenlan,et al."Negligible effects of TiO2 nanoparticles at environmentally relevant concentrations on the translocation and accumulation of perfluorooctanoic acid and perfluorooctanesulfonate in hydroponically grown pumpkin seedlings (Cucurbita maxima x C. moschata)".SCIENCE OF THE TOTAL ENVIRONMENT 686(2019):171-178.