Compositional and functional responses of bacterial community to titanium dioxide nanoparticles varied with soil heterogeneity and exposure duration
文献类型：期刊论文
| 作者 | Zhai, Yujia; Chen, Lihua; Liu, Gang; Song, Lan; Arenas-Lago, Daniel; Kong, Lingchao; Peijnenburg, Willie; Vijver, Martina G. |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2021-06-15 |
| 卷号 | 773页码:- |
| 关键词 | Nanotoxicity Soil properties Organic matter Enzyme activity Suit bacterial community |
| ISSN号 | 0048-9697 |
| 英文摘要 | Titanium dioxide nanoparticles (TiO2 NPs) are widely used as nano-agrochemicals. In this study we investigated the influence of soil heterogeneity on bacterial communities exposed W TiO2 NPs over time. Clay and sandy soils with low- and high-organic matter contents were exposed to environmentally relevant concentration of TiO2 NPs (1 mg/kg) and soil bacterial communities were sampled after short-term (15 days) and long-term exposure (60 days). After short-term TiO2 NPs exposure, significant effects regarding the enzyme activity, bacterial community structure and composition, and community functioning were observed in the clay soils with high organic matter (clay-HOM) but not in other soil groups. Response alterations were observed to taxa belonging to Aciclobacteria and Verrucomicrobia, and functional pathways related to carbohydrates degradation. These results indicated that soil heterogeneity play more important roles in shaping the bacterial community in soil with low clay fraction and less organic matter, while TiO2 NPs selection was the main driver in inducing the compositional and functional impacts on the soil bacterial community in the presence of clay soil with high organic matter content. As exposure time increased, the bacterial community recovered after a long-term exposure of 60 days, suggesting that the bacterial evolution and adaptation could overcome the TiO2 NPs selection after long-term exposure. Our results highlighted the importance of soil heterogeneity including clay fraction and organic matter and exposure duration in assessing the impact of nanoparticle on soil bacterial activity, community and function. By comprehensively evaluating the risks of nanoparticles on soil ecosystem and explicitly and explicitly include spatial and temporal variations, the benefit of nano-agrochemical products has the potential to be promoted in future applications. (C) 2021 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/46184]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 作者单位 | 1.Natl Inst Publ Hlth & Environm RIVM, POB 1, Bilthoven, Netherlands 2.Southern Univ Sci & Technol, Sch Environm Sci & Engn, State Environm Protect Key Lab Integrated Surface, Shenzhen 5180 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China 4.Delft Univ Technol, Fac Civil Engn & Geosci, Dept Water Management, Sanit Engn, POB 5048, NL-2600 GA Delft, Netherlands 5.Leiden Univ, Inst Environm Sci CML, POB 9518, NL-2300 RA Leiden, Netherlands 6.Univ Vigo, Dept Plant Biol & Soil Sci, Vigo 36310, Spain |
| 推荐引用方式 GB/T 7714 | Zhai, Yujia,Chen, Lihua,Liu, Gang,et al. Compositional and functional responses of bacterial community to titanium dioxide nanoparticles varied with soil heterogeneity and exposure duration[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,773:-. |
| APA | Zhai, Yujia.,Chen, Lihua.,Liu, Gang.,Song, Lan.,Arenas-Lago, Daniel.,...&Vijver, Martina G..(2021).Compositional and functional responses of bacterial community to titanium dioxide nanoparticles varied with soil heterogeneity and exposure duration.SCIENCE OF THE TOTAL ENVIRONMENT,773,-. |
| MLA | Zhai, Yujia,et al."Compositional and functional responses of bacterial community to titanium dioxide nanoparticles varied with soil heterogeneity and exposure duration".SCIENCE OF THE TOTAL ENVIRONMENT 773(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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