Translocation and biotransformation of CuO nanoparticles in rice (Oryza sativa L.) plants
文献类型：期刊论文
| ; | |
| 作者 | Peng, C; Duan, DC; Xu, C; Chen, YS; Sun, LJ; Zhang, H; Yuan, XF; Zheng, LR; Yang, YQ; Yang, JJ |
| 刊名 | ENVIRONMENTAL POLLUTION
 ; ENVIRONMENTAL POLLUTION
|
| 出版日期 | 2015 ; 2015 |
| 卷号 | 197页码:99-107 |
| 关键词 | CuO NPs Rice XAFS XRF STXM CuO NPs Rice XAFS XRF STXM |
| ISSN号 | 0269-7491 |
| DOI | 10.1016/j.envpol.2014.12.008 |
| 文献子类 | 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.; 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. |
| 学科主题 | Environmental Sciences & Ecology ; Environmental Sciences & Ecology |
| 类目[WOS] | Environmental Sciences |
| 收录类别 | SCI ; EI |
| 电子版国际标准刊号 | 1873-6424 |
| WOS研究方向 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000350921500013 ; WOS:000350921500013 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/228271]  |
| 专题 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Peng, C,Duan, DC,Xu, C,et al. Translocation and biotransformation of CuO nanoparticles in rice (Oryza sativa L.) plants, Translocation and biotransformation of CuO nanoparticles in rice (Oryza sativa L.) plants[J]. ENVIRONMENTAL POLLUTION, ENVIRONMENTAL POLLUTION,2015, 2015,197, 197:99-107, 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. |
入库方式： OAI收割
来源：高能物理研究所
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