Transformation of ceria nanoparticles in cucumber plants is influenced by phosphate

Yukui Rui; Peng Zhang; Yanbei Zhang; Yuhui Ma; Xiao He; Xin Gui; Yuanyuan Li; Jing Zhang; Lirong Zheng; Shengqi Chu; Zhi Guo; Zhifang Chai; Yuliang Zhao; Zhiyong Zhang

doi:10.1016/j.envpol.2014.12.017

Transformation of ceria nanoparticles in cucumber plants is influenced by phosphate

Yukui Rui, Peng Zhang, Yanbei Zhang, Yuhui Ma, Xiao He, Xin Gui, Yuanyuan Li, Jing Zhang, Lirong Zheng, Shengqi Chu, Zhi Guo, Zhifang Chai, Yuliang Zhao, Zhiyong Zhang

Research output: Contribution to journal › Article › peer-review

78 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	8-14
Number of pages	7
Journal	Environmental Pollution
Volume	198
DOIs	https://doi.org/10.1016/j.envpol.2014.12.017
State	Published - Mar 1 2015

Keywords

CeO
CePO
Nanoparticles
Plant
Transformation
Translocation

ASJC Scopus subject areas

Toxicology
Pollution
Health, Toxicology and Mutagenesis

Access to Document

10.1016/j.envpol.2014.12.017

Cite this

@article{32c1613a158b4994aaf9a14c3f2a6096,

title = "Transformation of ceria nanoparticles in cucumber plants is influenced by phosphate",

abstract = "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.",

keywords = "CeO, CePO, Nanoparticles, Plant, Transformation, Translocation",

author = "Yukui Rui and Peng Zhang and Yanbei Zhang and Yuhui Ma and Xiao He and Xin Gui and Yuanyuan Li and Jing Zhang and Lirong Zheng and Shengqi Chu and Zhi Guo and Zhifang Chai and Yuliang Zhao and Zhiyong Zhang",

year = "2015",

month = mar,

day = "1",

doi = "10.1016/j.envpol.2014.12.017",

language = "English (US)",

volume = "198",

pages = "8--14",

journal = "Environmental pollution (Barking, Essex : 1987)",

issn = "0269-7491",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Transformation of ceria nanoparticles in cucumber plants is influenced by phosphate

AU - Rui, Yukui

AU - Zhang, Peng

AU - Zhang, Yanbei

AU - Ma, Yuhui

AU - He, Xiao

AU - Gui, Xin

AU - Li, Yuanyuan

AU - Zhang, Jing

AU - Zheng, Lirong

AU - Chu, Shengqi

AU - Guo, Zhi

AU - Chai, Zhifang

AU - Zhao, Yuliang

AU - Zhang, Zhiyong

PY - 2015/3/1

Y1 - 2015/3/1

N2 - 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.

AB - 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.

KW - CeO

KW - CePO

KW - Nanoparticles

KW - Plant

KW - Transformation

KW - Translocation

UR - http://www.scopus.com/inward/record.url?scp=84938718299&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84938718299&partnerID=8YFLogxK

U2 - 10.1016/j.envpol.2014.12.017

DO - 10.1016/j.envpol.2014.12.017

M3 - Article

C2 - 25549862

AN - SCOPUS:84938718299

VL - 198

SP - 8

EP - 14

JO - Environmental pollution (Barking, Essex : 1987)

JF - Environmental pollution (Barking, Essex : 1987)

SN - 0269-7491

ER -

Transformation of ceria nanoparticles in cucumber plants is influenced by phosphate

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this