Phytotoxicity, uptake and transformation of nano-ceo2 in sand cultured romaine lettuce
文献类型：期刊论文
| 作者 | Zhang, Peng1; Ma, Yuhui1; Liu, Shutong2; Wang, Guohua1; Zhang, Junzhe1; He, Xiao1; Zhang, Jing3; Rui, Yukui2; Zhang, Zhiyong1 |
| 刊名 | Environmental pollution
 |
| 出版日期 | 2017 |
| 卷号 | 220页码:1400-1408 |
| 关键词 | Ceo2 Nanomaterials Lettuce Toxicity Transformation |
| ISSN号 | 0269-7491 |
| DOI | 10.1016/j.envpol.2016.10.094 |
| 通讯作者 | Rui, yukui(ruiyukui@163.com) ; Zhang, zhiyong(zhangzhy@ihep.ac.cn) |
| 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 . |
| WOS关键词 | CERIUM OXIDE NANOPARTICLES ; 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 |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000390732300069 |
| 出版者 | ELSEVIER SCI LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176606 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Rui, Yukui; Zhang, Zhiyong |
| 作者单位 | 1.Chinese Acad Sci, Inst High Energy Phys, Key Lab Biol Effects Nanomat & Nanosafety, Beijing 100049, Peoples R China 2.China Agr Univ, Coll Resources & Environm Sci, Beijing 100093, Peoples R China 3.Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Peng,Ma, Yuhui,Liu, Shutong,et al. Phytotoxicity, uptake and transformation of nano-ceo2 in sand cultured romaine lettuce[J]. Environmental pollution,2017,220:1400-1408. |
| APA | Zhang, Peng.,Ma, Yuhui.,Liu, Shutong.,Wang, Guohua.,Zhang, Junzhe.,...&Zhang, Zhiyong.(2017).Phytotoxicity, uptake and transformation of nano-ceo2 in sand cultured romaine lettuce.Environmental pollution,220,1400-1408. |
| MLA | Zhang, Peng,et al."Phytotoxicity, uptake and transformation of nano-ceo2 in sand cultured romaine lettuce".Environmental pollution 220(2017):1400-1408. |
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来源：高能物理研究所
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