Transformation of ceria nanoparticles in cucumber plants is influenced by phosphate

	Transformation of ceria nanoparticles in cucumber plants is influenced by phosphate
	张鹏(多); Ma YH(马宇辉); He X(何潇); Li YY(李媛媛); Zhang J(张静); Zheng LR(郑黎荣); Chu SQ(储胜启); Chai ZF(柴之芳); Zhao YL(赵宇亮); Zhang ZY(张智勇)
刊名	ENVIRONMENTAL POLLUTION
	2015
卷号	198 页码:8-14
关键词	Transformation Translocation CeO2 CePO4 Nanoparticles Plant
通讯作者	张智勇
英文摘要	Transformation is a critical factor that affects the fate and toxicity of manufactured nanoparticles (NPs) in the environment and living organisms. This paper aims to investigate the effect of phosphate on the transformation of CeO2 NPs in hydroponic plants. Cucumber seedlings were treated with 2000 mg/L CeO2 NPs in nutrient solutions with or without adding phosphate (+P or -P) for 3 weeks. Large quantities of needle-like CePO4 was found outside the epidermis in the +P group. While in the -P group, CePO4 only existed in the intercellular spaces and vacuole of root cells. X-ray absorption near edge spectroscopy (XANES) indicates that content and percentage of Ce-carboxylates in the shoots of -P group (418 mg/kg, 67.5%) were much higher than those in the +P group (30.1 mg/kg, 21%). The results suggest that phosphate might influence the transformation process of CeO2 NPs in plants and subsequently their ultimate fate in the ecosystem. (C) 2014 Elsevier Ltd. All rights reserved.
学科主题	Environmental Sciences & Ecology
类目[WOS]	Environmental Sciences
收录类别	SCI
WOS记录号	WOS:000350191600002
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/228258]
专题	高能物理研究所_院士高能物理研究所_多学科研究中心
推荐引用方式 GB/T 7714	Zhang P,Ma YH,He X,et al. Transformation of ceria nanoparticles in cucumber plants is influenced by phosphate[J]. ENVIRONMENTAL POLLUTION,2015,198:8-14.
APA	张鹏.,马宇辉.,何潇.,李媛媛.,张静.,...&Zhang, ZY.(2015).Transformation of ceria nanoparticles in cucumber plants is influenced by phosphate.ENVIRONMENTAL POLLUTION,198,8-14.
MLA	张鹏,et al."Transformation of ceria nanoparticles in cucumber plants is influenced by phosphate".ENVIRONMENTAL POLLUTION 198(2015):8-14.