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Effects of cerium oxide on rice seedlings as affected by co-exposure of cadmium and salt
Wang, Yaoyao1; Wang, Lingqing2; Ma, Chuanxin3; Wang, Kexiang4,5; Hao, Yi1; Chen, Qing1; Mo, You6; Rui, Yukui1
2019-09-01
Source PublicationENVIRONMENTAL POLLUTION
ISSN0269-7491
Volume252Pages:1087-1096
Corresponding AuthorRui, Yukui(ruiyukui@163.com)
AbstractEffects 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.
KeywordOryza sativa L. Cadmium Salt Antioxidant enzymes 8-OHdG Co-contamination
DOI10.1016/j.envpol.2019.06.007
WOS KeywordMAX L. MERR. ; OXIDATIVE STRESS ; DIOXIDE NANOPARTICLES ; CEO2 NANOPARTICLES ; OSMOTIC-STRESS ; SOIL FERTILITY ; FREE PROLINE ; ACCUMULATION ; TOXICITY ; SALINITY
Indexed BySCI
Language英语
Funding ProjectNational 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]
Funding OrganizationNational Key R&D Program of China ; NSFC- Guangdong Joint Fund ; National Natural Science Foundation of China
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000483405400018
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/69638
Collection中国科学院地理科学与资源研究所
Corresponding AuthorRui, Yukui
Affiliation1.China Agr Univ, Beijing Key Lab Farmland Soil Pollut Prevent & Re, Coll Resources & Environm Sci, Beijing 100193, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
3.Connecticut Agr Expt Stn, Dept Analyt Chem, New Haven, CT 06504 USA
4.Qingdao Yuance Biotechnol Co Ltd, Qingdao 266071, Shandong, Peoples R China
5.Ocean Univ China, Coll Management, Qingdao 266100, Shandong, Peoples R China
6.China Agr Univ, Coll Agron & Biotechnol, Beijing 100193, Peoples R China
Recommended Citation
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.
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