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DOI:	10.1371/journal.pone.0123378
论文题名:	Spatial Distribution of an Uranium-Respiring Betaproteobacterium at the Rifle, CO Field Research Site
作者:	Nicole M. Koribanics; Steven J. Tuorto; Nora Lopez-Chiaffarelli; Lora R. McGuinness; Max M. Häggblom; Kenneth H. Williams; Philip E. Long; Lee J. Kerkhof
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2015
发表日期:	2015-4-13
卷:	10, 期:4
语种:	英语
英文关键词:	Uranium ; Burkholderia ; Fungal genetics ; Sediment ; Electron acceptors ; Ribosomal RNA ; Electron donors ; Bacteria
英文摘要:	The Department of Energy’s Integrated Field-Scale Subsurface Research Challenge Site (IFRC) at Rifle, Colorado was created to address the gaps in knowledge on the mechanisms and rates of U(VI) bioreduction in alluvial sediments. Previous studies at the Rifle IFRC have linked microbial processes to uranium immobilization during acetate amendment. Several key bacteria believed to be involved in radionuclide containment have been described; however, most of the evidence implicating uranium reduction with specific microbiota has been indirect. Here, we report on the cultivation of a microorganism from the Rifle IFRC that reduces uranium and appears to utilize it as a terminal electron acceptor for respiration with acetate as electron donor. Furthermore, this bacterium constitutes a significant proportion of the subsurface sediment community prior to biostimulation based on TRFLP profiling of 16S rRNA genes. 16S rRNA gene sequence analysis indicates that the microorganism is a betaproteobacterium with a high similarity to Burkholderia fungorum. This is, to our knowledge, the first report of a betaproteobacterium capable of uranium respiration. Our results indicate that this microorganism occurs commonly in alluvial sediments located between 3-6 m below ground surface at Rifle and may play a role in the initial reduction of uranium at the site.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0123378&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/21997
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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作者单位:

Inst. of Marine and Coastal Science, Rutgers University, New Brunswick, New Jersey, United States of America;Inst. of Marine and Coastal Science, Rutgers University, New Brunswick, New Jersey, United States of America;Inst. of Marine and Coastal Science, Rutgers University, New Brunswick, New Jersey, United States of America;Dept. of Biochemistry and Microbiology, Rutgers University, New Brunswick, New Jersey, United States of America;Inst. of Marine and Coastal Science, Rutgers University, New Brunswick, New Jersey, United States of America;Dept. of Biochemistry and Microbiology, Rutgers University, New Brunswick, New Jersey, United States of America;Lawrence Berkeley National Laboratory, Berkeley, California, United States of America;Lawrence Berkeley National Laboratory, Berkeley, California, United States of America;Inst. of Marine and Coastal Science, Rutgers University, New Brunswick, New Jersey, United States of America

Recommended Citation:

Nicole M. Koribanics,Steven J. Tuorto,Nora Lopez-Chiaffarelli,et al. Spatial Distribution of an Uranium-Respiring Betaproteobacterium at the Rifle, CO Field Research Site[J]. PLOS ONE,2015-01-01,10(4)

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