Phytotoxicity, uptake and transformation of nano-CeO2 in sand cultured romaine lettuce
文献类型：期刊论文
| ; | |
| 作者 | Zhang, P; Ma, YH ; Liu, ST; Wang, GH; Zhang, JZ; He, X; Zhang, J; Rui, YK; Zhang, ZY; Zhang J(张静)
|
| 刊名 | ENVIRONMENTAL POLLUTION
 ; ENVIRONMENTAL POLLUTION
|
| 出版日期 | 2017 ; 2017 |
| 卷号 | 220页码:1400-1408 |
| 关键词 | CeO2 CeO2 Nanomaterials Lettuce Toxicity Transformation Nanomaterials Lettuce Toxicity Transformation |
| ISSN号 | 0269-7491 ; 0269-7491 |
| DOI | 10.1016/j.envpol.2016.10.094 ; 10.1016/j.envpol.2016.10.094 |
| 文献子类 | Article ; Article |
| 英文摘要 | Toxicity and uptake of nano-CeO2 (nCeO(2)) in edible vegetables are not yet fully understood. In the present study, we grew romaine lettuce in sand amended with nCeO(2). At high concentrations (1000 and 2000 mg/kg), nCeO(2) diminished the chlorophyll content by 16.5% and 25.8%, respectively, and significantly inhibited the biomass production. nCeO(2) (>= 100 mg/kg) altered antioxidant enzymatic activities and malondialdehyde levels in the plants. nCeO(2) (>= 500 mg/kg) triggered a remarkable increase of nitrate-N level in the shoots, which can be converted to toxic nitrite in humans thereby posed risk to human health. Concentration dependent accumulation of Ce in the plant tissues was observed. X ray absorption near edge spectroscopy (XANES) results indicate that Ce presented as nCeO(2) and CePO4 in the roots while as nCeO(2) and Ce carboxylates in the shoots. Chelation of ce(3+) by citric acid or precipitation of ce(3+) by PO43- reduced the translocation and toxicity of nCeO(2), indicating that release of Ce3+ played a critical role in the toxicity nCeO(2). (C) 2016 Elsevier Ltd. All rights reserved .; Toxicity and uptake of nano-CeO2 (nCeO(2)) in edible vegetables are not yet fully understood. In the present study, we grew romaine lettuce in sand amended with nCeO(2). At high concentrations (1000 and 2000 mg/kg), nCeO(2) diminished the chlorophyll content by 16.5% and 25.8%, respectively, and significantly inhibited the biomass production. nCeO(2) (>= 100 mg/kg) altered antioxidant enzymatic activities and malondialdehyde levels in the plants. nCeO(2) (>= 500 mg/kg) triggered a remarkable increase of nitrate-N level in the shoots, which can be converted to toxic nitrite in humans thereby posed risk to human health. Concentration dependent accumulation of Ce in the plant tissues was observed. X ray absorption near edge spectroscopy (XANES) results indicate that Ce presented as nCeO(2) and CePO4 in the roots while as nCeO(2) and Ce carboxylates in the shoots. Chelation of ce(3+) by citric acid or precipitation of ce(3+) by PO43- reduced the translocation and toxicity of nCeO(2), indicating that release of Ce3+ played a critical role in the toxicity nCeO(2). (C) 2016 Elsevier Ltd. All rights reserved . |
| 电子版国际标准刊号 | 1873-6424 ; 1873-6424 |
| WOS关键词 | CERIUM OXIDE NANOPARTICLES ; CERIUM OXIDE NANOPARTICLES ; CUCUMBER CUCUMIS-SATIVUS ; CEO2 NANOPARTICLES ; ENGINEERED NANOMATERIALS ; ZNO NANOPARTICLES ; TROPHIC TRANSFER ; DIETARY NITRATE ; PLANT-TISSUE ; FOOD SAFETY ; LIFE-CYCLE ; CUCUMBER CUCUMIS-SATIVUS ; CEO2 NANOPARTICLES ; ENGINEERED NANOMATERIALS ; ZNO NANOPARTICLES ; TROPHIC TRANSFER ; DIETARY NITRATE ; PLANT-TISSUE ; FOOD SAFETY ; LIFE-CYCLE |
| WOS研究方向 | Environmental Sciences & Ecology ; Environmental Sciences & Ecology |
| 语种 | 英语 ; 英语 |
| WOS记录号 | WOS:000390732300069 ; WOS:000390732300069 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285120]  |
| 专题 | 高能物理研究所_多学科研究中心 高能物理研究所_实验物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zhang, P,Ma, YH,Liu, ST,et al. Phytotoxicity, uptake and transformation of nano-CeO2 in sand cultured romaine lettuce, Phytotoxicity, uptake and transformation of nano-CeO2 in sand cultured romaine lettuce[J]. ENVIRONMENTAL POLLUTION, ENVIRONMENTAL POLLUTION,2017, 2017,220, 220:1400-1408, 1400-1408. |
| APA | Zhang, P.,Ma, YH.,Liu, ST.,Wang, GH.,Zhang, JZ.,...&张静.(2017).Phytotoxicity, uptake and transformation of nano-CeO2 in sand cultured romaine lettuce.ENVIRONMENTAL POLLUTION,220,1400-1408. |
| MLA | Zhang, P,et al."Phytotoxicity, uptake and transformation of nano-CeO2 in sand cultured romaine lettuce".ENVIRONMENTAL POLLUTION 220(2017):1400-1408. |
入库方式： OAI收割
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。