Effects of cerium oxide on rice seedlings as affected by co-exposure of cadmium and salt

doi:10.1016/j.envpol.2019.06.007

	Effects of cerium oxide on rice seedlings as affected by co-exposure of cadmium and salt
	Wang, Yaoyao 3; Wang, Lingqing 4; Ma, Chuanxin 1; Wang, Kexiang 2,5; Hao, Yi 3; Chen, Qing 3; Mo, You 6; Rui, Yukui 3
刊名	ENVIRONMENTAL POLLUTION
	2019-09-01
卷号	252 页码:1087-1096
关键词	Oryza sativa L. Cadmium Salt Antioxidant enzymes 8-OHdG Co-contamination
ISSN号	0269-7491
DOI	10.1016/j.envpol.2019.06.007
通讯作者	Rui, Yukui(ruiyukui@163.com)
英文摘要	Effects of CeO2 NPs (200 mg.L-1) on rice (Oryza sativa L.) alone or co-exposure with cadmium (Cd) and salt (sodium chloride, NaCl) were investigated in hydroponic systems for two weeks. Physiological results show that rice biomass was significantly inhibited when NaCl or CdCl2 added alone or in co-exposure treatment. CeO2 NPs significantly relieve the chlorophyll damage under CdCl2 environmental stress. The presence of CeO2 NPs alleviated both stressors induced damages to rice as indicated by the reduced proline level. Additionally, CeO2 NPs triggered the antioxidant defense systems to counteract the oxidative stress caused by NaCl and CdCl2. The level of 8-OHdG, one of the most important indicators for genotoxicity, in rice suggest that the presence of CeO2 NPs reduced the DNA damage in NaCl treated rice. Elemental analysis indicated that co-exposure to NaCl and CdCl2 slightly decreased the Cd content as compared to the one in the CdCl2 alone treatment, and this co-exposure also significantly reduced the Na content when comparing with the NaCl alone treatment. Taken together, our findings suggest that CeO2 NPs could alleviate the CdCl2 and NaCl stresses, but could not completely change the phenotype of both contaminants treated rice. (C) 2019 Elsevier Ltd. All rights reserved.
资助项目	National Key R&D Program of China[2017YFD0801300] ; National Key R&D Program of China[2017YFD0801103] ; NSFC- Guangdong Joint Fund[U1401234] ; National Natural Science Foundation of China[41371471]
WOS关键词	MAX L. MERR. ; OXIDATIVE STRESS ; DIOXIDE NANOPARTICLES ; CEO2 NANOPARTICLES ; OSMOTIC-STRESS ; SOIL FERTILITY ; FREE PROLINE ; ACCUMULATION ; TOXICITY ; SALINITY
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000483405400018
资助机构	National Key R&D Program of China ; NSFC- Guangdong Joint Fund ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/69637]
专题	中国科学院地理科学与资源研究所
通讯作者	Rui, Yukui
作者单位	1.Connecticut Agr Expt Stn, Dept Analyt Chem, New Haven, CT 06504 USA 2.Ocean Univ China, Coll Management, Qingdao 266100, Shandong, Peoples R China 3.China Agr Univ, Beijing Key Lab Farmland Soil Pollut Prevent & Re, Coll Resources & Environm Sci, Beijing 100193, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 5.Qingdao Yuance Biotechnol Co Ltd, Qingdao 266071, Shandong, Peoples R China 6.China Agr Univ, Coll Agron & Biotechnol, Beijing 100193, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yaoyao,Wang, Lingqing,Ma, Chuanxin,et al. Effects of cerium oxide on rice seedlings as affected by co-exposure of cadmium and salt[J]. ENVIRONMENTAL POLLUTION,2019,252:1087-1096.
APA	Wang, Yaoyao.,Wang, Lingqing.,Ma, Chuanxin.,Wang, Kexiang.,Hao, Yi.,...&Rui, Yukui.(2019).Effects of cerium oxide on rice seedlings as affected by co-exposure of cadmium and salt.ENVIRONMENTAL POLLUTION,252,1087-1096.
MLA	Wang, Yaoyao,et al."Effects of cerium oxide on rice seedlings as affected by co-exposure of cadmium and salt".ENVIRONMENTAL POLLUTION 252(2019):1087-1096.