Anaerobic redox cycling of iron by freshwater sediment microorganisms.
- K. Weber, M. Urrutia, P. Churchill, R. Kukkadapu, E. Roden
- Environmental ScienceEnvironmental Microbiology
- 2006
The results indicate that the wetland sediments contained organisms such as Geobacter sp.
Ultrastructural and molecular phylogenetic delineation of a new order, the Rhizophydiales (Chytridiomycota).
- Peter M. Letcher, M. Powell, P. Churchill, James G. Chambers
- BiologyMycological Research
- 1 August 2006
Isolation and Characterization of aMycobacterium Species Capable of Degrading Three- and Four-Ring Aromatic and Aliphatic Hydrocarbons
- S. Churchill, J. P. Harper, P. Churchill
- BiologyApplied and Environmental Microbiology
- 1 February 1999
No DNA hybridization was detected with the nahAcgene probe, indicating that enzymes involved in PAH metabolism are not related to the well-characterized naphthalene dioxygenase gene, and a distant relationship between genes involved in alkane oxidation is suggested.
SUCCESSIONAL CHANGES IN BACTERIAL ASSEMBLAGE STRUCTURE DURING EPILITHIC BIOFILM DEVELOPMENT
- C. Jackson, P. Churchill, E. Roden
- Environmental Science
- 1 February 2001
Examining successional changes in the structure of bacterial assemblages using denaturing gradient gel electrophoresis (DGGE) analysis of polymerase chain reaction amplified 16S rDNA fragments suggested greater equitability in bacterial community structure as the biofilms developed, suggesting that bacterial assembLages may not be structured by the resource competition or niche-driven patterns typical of communities of macroorganisms.
A simple, efficient method for the separation of humic substances and DNA from environmental samples
- C. Jackson, J. P. Harper, D. Willoughby, E. Roden, P. Churchill
- BiologyApplied and Environmental Microbiology
- 1 December 1997
Three different gels were evaluated as a means of removing humic contaminants from DNA extracts of environmental samples and Sepharose 4B gave superior separation of DNA from humics, and DNA purified in this way showed consistently greater amplification than DNA purified by the other materials.
Ultrastructural and molecular analyses of Rhizophydiales (Chytridiomycota) isolates from North America and Argentina.
- Peter M. Letcher, C. G. Vélez, M. Barrantes, M. Powell, P. Churchill, William S Wakefield
- Environmental Science, BiologyMycological Research
- 1 July 2008
Sorption of Heavy Metals by Prepared Bacterial Cell Surfaces
- S. Churchill, J. V. Walters, P. Churchill
- Biology
- 1 October 1995
Metal-binding enhancement could be ascribed to increased cell barrier surface porosity to metal-bearing solutions.
Rhizophlyctidales--a new order in Chytridiomycota.
- Peter M. Letcher, M. Powell, D. Barr, P. Churchill, William S Wakefield, Kathryn T Picard
- Biology, Environmental ScienceMycological Research
- 1 September 2008
Surfactant-enhanced bioremediation
- P. Churchill, R. J. Dudley, S. Churchill
- Biology, Chemistry
- 1995
Changes in Bacterial Species Composition in Enrichment Cultures with Various Dilutions of Inoculum as Monitored by Denaturing Gradient Gel Electrophoresis
- C. Jackson, E. Roden, P. Churchill
- BiologyApplied and Environmental Microbiology
- 1 December 1998
Denaturing gradient gel electrophoresis revealed changes in the bacterial species obtained from enrichment cultures with different inoculum dilutions that may facilitate the detection and isolation of a greater number of bacterial species than traditional enrichment techniques.
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