| DOI: | 10.2172/1126517
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| 报告号: | Final Technical Report
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| 报告题名: | Functional Role of Infective Viral Particles on Metal Reduction |
| 作者: | Coates, John D.
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| 出版年: | 2014
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| 发表日期: | 2014-04-01
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| 国家: | 美国
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| 语种: | 英语
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| 中文主题词: | 土壤
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| 主题词: | SOILS
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| 英文摘要: | A proposed strategy for the remediation of uranium (U) contaminated sites was based on the immobilization of U by reducing the oxidized soluble U, U(VI), to form a reduced insoluble end product, U(IV). Previous studies identified Geobacter sp., including G. sulfurreducens and G. metallireducens, as predominant U(VI)-reducing bacteria under acetate-oxidizing and U(VI)-reducing conditions. Examination of the finished genome sequence annotation of the canonical metal reducing species Geobacter sulfurreducens strain PCA and G. metallireduceans strain GS-15 as well as the draft genome sequence of G. uraniumreducens strain Rf4 identified phage related proteins. In addition, the completed genome for Anaeromyxobacter dehalogenans and the draft genome sequence of Desulfovibrio desulfuricans strain G20, two more model metal-reducing bacteria, also revealed phage related sequences. The presence of these gene sequences indicated that Geobacter spp., Anaeromyxobacter spp., and Desulfovibrio spp. are susceptible to viral infection. Furthermore, viral populations in soils and sedimentary environments in the order of 6.4Ă10{sup 6}â2.7Ă10{sup 10} VLPâs cm{sup -3} have been observed. In some cases, viral populations exceed bacterial populations in these environments suggesting that a relationship may exist between viruses and bacteria. Our preliminary screens of samples collected from the ESR FRC indicated that viral like particles were observed in significant numbers. The objective of this study was to investigate the potential functional role viruses play in metal reduction specifically Fe(III) and U(VI) reduction, the environmental parameters affecting viral infection of metal reducing bacteria, and the subsequent effects on U transport. |
| URL: | http://www.osti.gov/scitech/servlets/purl/1126517
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| Citation statistics: |
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| 资源类型: | 研究报告
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/41556
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| 1126517.pdf（5318KB） | 研究报告 | -- | 开放获取 | | View
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| Recommended Citation: | |
Coates, John D.. Functional Role of Infective Viral Particles on Metal Reduction. 2014-01-01.
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