Species-specific toxicity of ceria nanoparticles to Lactuca plants
文献类型：期刊论文
| 作者 | 张鹏(多); Ma YH(马宇辉) ; Zhang ZY(张智勇); He X(何潇); Li YY(李源源); Zhang J(张静); Zheng LR(郑黎荣); Zhao YL(赵宇亮); Zhang, P; Ma, YH
|
| 刊名 | NANOTOXICOLOGY
 |
| 出版日期 | 2015 |
| 卷号 | 9期号:1页码:1-8 |
| 关键词 | Biotransformation CeO2 Lactuca plants nanoparticles phytotoxicity |
| 通讯作者 | 张智勇 |
| 英文摘要 | Species-specific differences in the toxicity of manufactured nanoparticles (MNPs) have been reported, but the underlying mechanisms are unknown. We previously found that CeO2 NPs inhibited root elongation of head lettuce, whereas no toxic effect was observed on other plants (such as wheat, cucumber and radish). In this study, interactions between Lactuca plants and three types of CeO2 NPs (lab-synthesized 7 and 25nm CeO2 NPs, and a commercial CeO2 NPs) were investigated. It was found that CeO2 NPs were toxic to three kinds of Lactuca genus plants and different CeO2 NPs showed different degrees of toxicity. The results of X-ray absorption near edge fine structure indicate that small parts of CeO2 NPs were transformed from Ce(IV) to Ce(III) in roots of the plants that were treated with CeO2 NPs during the seed germination stage. But the high sensitivity of Lactuca plants to the released Ce3+ ions caused the species-specific phytotoxicity of CeO2 NPs. Differences in sizes and zeta potentials among three types of CeO2 NPs resulted in their different degrees of biotransformation which accounted for the discrepancy in the toxicity to Lactuca plants. This study is among the few, and may indeed the first, that addresses the relation between the physicochemical properties of nanoparticles and its species-specific phytotoxicity. |
| 学科主题 | Science & Technology - Other Topics; Toxicology |
| 类目[WOS] | Nanoscience & Nanotechnology ; Toxicology |
| 收录类别 | SCI |
| WOS记录号 | WOS:000351622200001 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/228269]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 推荐引用方式 GB/T 7714 | Zhang P,Ma YH,Zhang ZY,et al. Species-specific toxicity of ceria nanoparticles to Lactuca plants[J]. NANOTOXICOLOGY,2015,9(1):1-8. |
| APA | 张鹏.,马宇辉.,张智勇.,何潇.,李源源.,...&Zhao, YL.(2015).Species-specific toxicity of ceria nanoparticles to Lactuca plants.NANOTOXICOLOGY,9(1),1-8. |
| MLA | 张鹏,et al."Species-specific toxicity of ceria nanoparticles to Lactuca plants".NANOTOXICOLOGY 9.1(2015):1-8. |
入库方式： OAI收割
来源：高能物理研究所
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