The impact of iron oxide magnetic nanoparticles on the soil bacterial community
文献类型：期刊论文
| 作者 | He, Shiying1; Feng, Youzhi2; Ren, Hongxuan3; Zhang, Yu1; Gu, Ning1; Lin, Xiangui2 |
| 刊名 | JOURNAL OF SOILS AND SEDIMENTS
 |
| 出版日期 | 2011-12-01 |
| 卷号 | 11期号:8页码:1408-1417 |
| 关键词 | DGGE Iron oxide magnetic nanoparticles Soil bacterial community |
| ISSN号 | 1439-0108 |
| DOI | 10.1007/s11368-011-0415-7 |
| 通讯作者 | Gu, Ning(guning@seu.edu.cn) |
| 英文摘要 | Purpose Iron oxide magnetic nanoparticles (IOMNPs) have numerous exciting applications due to their unique chemical and physical properties. With increased applications of engineered nanostructures, releases of such materials to soil are undoubtedly inevitable. Their potential environmental risks have attracted increasing concern. One area of concern is their effect on microorganisms, which are important components of ecosystems. Materials and methods In this work, the effect of IOMNPs (Fe(3)O(4) and gamma-Fe(2)O(3)) on the soil bacterial community has been studied with molecular approaches and enzyme analyses. The community structure and population size were analysed using molecular-based methods, including PCR-denaturing gradient gel electrophoresis and real-time quantitative PCR based on the universal bacterial biomarker, the 16S rRNA gene sequence fragment for the bacterial variable V3 region. In addition, plate counting was conducted to validate the results of molecular methods. Four enzyme activities (dehydrogenase, urease, invertase and phosphatase) involved in cycling the main biologically important nutrients (C, N and P) were measured. Results and discussion Our analysis revealed that the addition of IOMNPs could potentially stimulate some bacterial growth and change the soil bacterial community structure, although bacterial abundance does not change. Based on molecular fingerprinting and sequencing analysis, several potential IOMNPs-stimulated bacteria were related to Actinobacteria, such as Duganella, Streptomycetaceae or Nocardioides. Meanwhile, soil urease and invertase activities significantly increased under IOMNPs amendment, which could be a consequence of the changes in the bacterial community. Conclusions Molecular evidence suggests that IOMNP addition may facilitate C and N cycling in soil by influencing soil bacterial community. These findings are of great help towards building a comprehensive understanding of the potential impact of nanoparticles on the environment. |
| 收录类别 | SCI |
| WOS关键词 | MICROBIAL COMMUNITY ; ESCHERICHIA-COLI ; HUMIC-ACID ; NANOMATERIALS ; ENVIRONMENT ; INDICATORS ; DIVERSITY ; BEHAVIOR ; CO2 |
| WOS研究方向 | Geology ; Agriculture |
| WOS类目 | Geosciences, Multidisciplinary ; Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000297257100011 |
| 出版者 | SPRINGER HEIDELBERG |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558872 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Gu, Ning |
| 作者单位 | 1.Southeast Univ, Sch Biol Sci & Med Engn, Jiangsu Lab Biomat & Devices, Nanjing 210096, Peoples R China 2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Jiangsu Provinc, Peoples R China 3.Natl Ctr Nanosci & Technol China, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Shiying,Feng, Youzhi,Ren, Hongxuan,et al. The impact of iron oxide magnetic nanoparticles on the soil bacterial community[J]. JOURNAL OF SOILS AND SEDIMENTS,2011,11(8):1408-1417. |
| APA | He, Shiying,Feng, Youzhi,Ren, Hongxuan,Zhang, Yu,Gu, Ning,&Lin, Xiangui.(2011).The impact of iron oxide magnetic nanoparticles on the soil bacterial community.JOURNAL OF SOILS AND SEDIMENTS,11(8),1408-1417. |
| MLA | He, Shiying,et al."The impact of iron oxide magnetic nanoparticles on the soil bacterial community".JOURNAL OF SOILS AND SEDIMENTS 11.8(2011):1408-1417. |
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来源：南京土壤研究所
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