IHEP OpenIR
Translocation and biotransformation of CuO nanoparticles in rice (Oryza sativa L.) plants
Peng, C; Duan, DC; Xu, C; Chen, YS; Sun, LJ; Zhang, H; Yuan, XF; Zheng, LR; Yang, YQ; Yang, JJ; Zhen, XJ; Chen, YX; Shi, JY; Zheng LR(郑黎荣)
2015
Source PublicationENVIRONMENTAL POLLUTION
ISSN0269-7491
EISSN1873-6424
Volume197Pages:99-107
SubtypeArticle
AbstractMetal-based nanoparticles (MNPs) may be translocated and biochemically modified in vivo, which may influence the fate of MNPs in the environment. Here, synchrotron-based techniques were used to investigate the behavior of CuO NPs in rice plants exposed to 100 mg/L CuO NPs for 14 days. Micro X-ray fluorescence (mu-XRF) and micro X-ray absorption near edge structure (mu-XANES) analysis revealed that CuO NPs moved into the root epidermis, exodermis, and cortex, and they ultimately reached the endodermis but could not easily pass the Casparian strip; however, the formation of lateral roots provided a potential pathway for MNPs to enter the stele. Moreover, bulk-XANES data showed that CuO NPs were transported from the roots to the leaves, and that Cu (II) combined with cysteine, citrate, and phosphate ligands and was even reduced to Cu (I). CuO NPs and Cu-citrate were observed in the root cells using soft X-ray scanning transmission microscopy (STXM). (C) 2014 Elsevier Ltd. All rights reserved.
KeywordCuO NPs Rice XAFS XRF STXM
Subject AreaEnvironmental Sciences & Ecology
DOI10.1016/j.envpol.2014.12.008
Indexed BySCI ; EI
Language英语
WOS Research AreaEnvironmental Sciences
WOS SubjectEnvironmental Sciences & Ecology
WOS IDWOS:000350921500013
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/228271
Collection中国科学院高能物理研究所
Recommended Citation
GB/T 7714
Peng, C,Duan, DC,Xu, C,et al. Translocation and biotransformation of CuO nanoparticles in rice (Oryza sativa L.) plants[J]. ENVIRONMENTAL POLLUTION,2015,197:99-107.
APA Peng, C.,Duan, DC.,Xu, C.,Chen, YS.,Sun, LJ.,...&郑黎荣.(2015).Translocation and biotransformation of CuO nanoparticles in rice (Oryza sativa L.) plants.ENVIRONMENTAL POLLUTION,197,99-107.
MLA Peng, C,et al."Translocation and biotransformation of CuO nanoparticles in rice (Oryza sativa L.) plants".ENVIRONMENTAL POLLUTION 197(2015):99-107.
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