Molecular profiling of microbial communities from contaminated sources: Use of subtractive cloning methods and rDNA spacer sequences. 1998 annual progress report

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'The major objective of the research is to provide appropriate sequences and to assemble a high-density DNA array of oligonucleotides that can be used for rapid profiling of microbial populations from polluted areas. The sequences to be assigned to the DNA array are chosen from from cloned genomic DNA sequences (the ribosomal operon, described below) from groundwater at DOE sites containing organic solvents. The sites, Hanford Nuclear Plant and Lawrence Livermore Site 300, have well characterized pollutant histories, which have been provided by the collaborators. At this mid-point of the project, over 60 unique sequence classes of intergenic spacer region ... continued below

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4 pages

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Robb, F.T. June 1, 1998.

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Description

'The major objective of the research is to provide appropriate sequences and to assemble a high-density DNA array of oligonucleotides that can be used for rapid profiling of microbial populations from polluted areas. The sequences to be assigned to the DNA array are chosen from from cloned genomic DNA sequences (the ribosomal operon, described below) from groundwater at DOE sites containing organic solvents. The sites, Hanford Nuclear Plant and Lawrence Livermore Site 300, have well characterized pollutant histories, which have been provided by the collaborators. At this mid-point of the project, over 60 unique sequence classes of intergenic spacer region have been idedntified from the first sample site. The use of these sequences as hybridization probes, and their frequency of occurrence, allow a clear distinction between bacterial communities before and after remediation by acetate/nitrate pumping. The authors have developed the hybridization conditions for identifying PCR products in a 96 well format, a versatile alignment and visualization program (acronym: MALIGN) developed by Dr. Dennis Maeder, has been used to align the ISRs, which are variable in length and sometimes in position of the tRNAs. Finally, in collaboration with Dr. W. Chen and Dr. J. Zhou at ORNL, they have significant evidence that mass spectrometer analysis can be used to determine the lengths of PCR amplified intergenic spacer DNA.'

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4 pages

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  • Other: DE00013700
  • Report No.: EMSP-55152--98
  • Grant Number: NONE
  • DOI: 10.2172/13700 | External Link
  • Office of Scientific & Technical Information Report Number: 13700
  • Archival Resource Key: ark:/67531/metadc621978

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  • June 1, 1998

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • June 13, 2016, 5:56 p.m.

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Robb, F.T. Molecular profiling of microbial communities from contaminated sources: Use of subtractive cloning methods and rDNA spacer sequences. 1998 annual progress report, report, June 1, 1998; United States. (digital.library.unt.edu/ark:/67531/metadc621978/: accessed August 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.