Influence of phosphate on phytotoxicity of ceria nanoparticles in an agar medium

doi:10.1016/j.envpol.2017.02.019

	Influence of phosphate on phytotoxicity of ceria nanoparticles in an agar medium
	Qu, MH; Chai ZF(柴之芳); Chu SQ(储胜启); Zhang J(张静); Luo WH(罗文赫); Xie CJ(谢昌建); Zhang JZ(张珺哲); Ding YY(丁雅韵); He X(何潇); Zhang P(张鹏)
刊名	ENVIRONMENTAL POLLUTION
	2017
卷号	224 页码:392-399
关键词	CeO2 NPs Phytotoxicity Phosphate Transformation Agar medium
ISSN号	0269-7491
DOI	10.1016/j.envpol.2017.02.019
文献子类	Article
英文摘要	Fate and toxicity of manufactured nanoparticles (NPs) in the living organisms and the environment are highly related to their transformation. In the present study, the effect of phosphate on the phytotoxicity and transformation of CeO2 NPs was investigated in an agar medium using head lettuce plants that are sensitive to Ce3+ ions. Plants were treated by CeO2 NPs with or without phosphate for 10 days. Results suggest that the treatments of P deficiency (P(-)) and CeO2 NPs (P(+)&Ce) could separately induce significant inhibition on the growth of lettuce seedlings and cause oxidative stress, but the inhibition was the most serious when the two conditions were combined (P(-)&Ce). In the absence of phosphate, more CeO2 NPs were transformed to Ce(III) in the roots and more Ce3+ ions were translocated to the shoots, which induced higher toxicity to head lettuce. Phosphates could alleviate the phytotoxic effect of CeO2 NPs through the precipitation of dissociated Ce3+ ions. Considering the wide existence of phosphate in the environment, phosphate-related transformation may be a critical factor in evaluating the toxicity and fate of many other metal-based NPs. (C) 2017 Elsevier Ltd. All rights reserved.
电子版国际标准刊号	1873-6424
WOS关键词	OXIDE NANOPARTICLES ; CUCUMBER PLANTS ; ZNO NANOPARTICLES ; TITANIUM-DIOXIDE ; TRANSFORMATION ; TOXICITY ; WATER ; CEO2 ; BIOTRANSFORMATION ; PERFORMANCE
WOS研究方向	Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000399261400038
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/284962]
专题	高能物理研究所_多学科研究中心高能物理研究所_实验物理中心高能物理研究所_粒子天体物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Qu, MH,Chai ZF,Chu SQ,et al. Influence of phosphate on phytotoxicity of ceria nanoparticles in an agar medium[J]. ENVIRONMENTAL POLLUTION,2017,224:392-399.
APA	Qu, MH.,柴之芳.,储胜启.,张静.,罗文赫.,...&Zhang, ZH.(2017).Influence of phosphate on phytotoxicity of ceria nanoparticles in an agar medium.ENVIRONMENTAL POLLUTION,224,392-399.
MLA	Qu, MH,et al."Influence of phosphate on phytotoxicity of ceria nanoparticles in an agar medium".ENVIRONMENTAL POLLUTION 224(2017):392-399.