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)
刊名ENVIRONMENTAL POLLUTION
2015
卷号197页码:99-107
关键词CuO NPs Rice XAFS XRF STXM
学科分类Environmental Sciences & Ecology
DOI10.1016/j.envpol.2014.12.008
文章类型Article
英文摘要Metal-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.
类目[WOS]Environmental Sciences
收录类别SCI ; EI
WOS记录号WOS:000350921500013
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被引频次:26[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228271
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
中国科学院高能物理研究所_多学科研究中心
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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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