| The spatial distribution of eubacteria and archaea in sand-clay columns degrading carbon tetrachloride and methanol. | |
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MedLine Citation:
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PMID: 17644217 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The spatial distribution of microbial communities was investigated in anaerobic sand-clay columns fed methanol and carbon tetrachloride (CT). Microbial communities were characterized through analysis of soil samples with denaturing gradient gel electrophoresis (DGGE) and quantitative polymerase chain reaction (qPCR) for archaea and eubacteria. Increasing CT inlet concentrations to 29 microM lead to complete inhibition of methanol consumption in both columns. Although low levels of eubacteria and archaea were initially present in the clay soils in both columns, there was no significant microbial growth over 400 days in the clays beyond the interface with the sand zone. Thus, the potential for increased contaminant attenuation in heterogeneous sand-clay systems through biodegradation in the clay matrix zones may be limited in many systems. |
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Authors:
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Gláucia da P Lima; Brent E Sleep |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2007-05-13 |
Journal Detail:
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Title: Journal of contaminant hydrology Volume: 94 ISSN: 0169-7722 ISO Abbreviation: J. Contam. Hydrol. Publication Date: 2007 Oct |
Date Detail:
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Created Date: 2007-10-08 Completed Date: 2008-02-29 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8805644 Medline TA: J Contam Hydrol Country: Netherlands |
Other Details:
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Languages: eng Pagination: 34-48 Citation Subset: IM |
Affiliation:
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Department of Civil Engineering, University of Espírito Santo, Av. Fernando Ferrari, s/n, Vitória, ES, Caixa Postal 9011, 29060-900, Brazil. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Aluminum Silicates* Anaerobiosis Archaea / metabolism* Bacteria / metabolism* Base Sequence Biodegradation, Environmental Carbon Tetrachloride / metabolism* Electrophoresis Methanol / metabolism* Polymerase Chain Reaction Silicon Dioxide* Soil Microbiology Soil Pollutants / metabolism* Time Factors |
| Chemical | |
Reg. No./Substance:
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0/Aluminum Silicates; 0/Soil Pollutants; 1302-87-0/clay; 56-23-5/Carbon Tetrachloride; 67-56-1/Methanol; 7631-86-9/Silicon Dioxide |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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