Presence and growth of naturalized Escherichia coli in temperate soils from lake superior watersheds

Article Abstract:

A study was conducted on the isolation of viable Escherichia coli populations from Northern temperate soils in three Lake Superior watersheds from October 2003 to October 2004. It was observed that the use of E. coli as an indicator of fecal contamination was overcome by the presence of significant populations of naturalized populations of E. coli in temperate soils.

Soils, Escherichia coli, Watersheds

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Presence and sources of fecal coliform bacteria in epilithic periphyton communities of Lake Superior

Article Abstract:

Samples of epilithic periphyton communities were collected from three sites on the Minnesota shoreline of Lake Superior to determine the presence of fecal coliforms and Escherichia coli throughout the ice-free season. The findings suggested that fecal coliform densities increased up to 4 orders of magnitude in early summer and decreased during autumn.

Enterobacter, Enterobacteriaceae, Microbial populations, Lake Superior, Report

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Relationship between phylogenetic groups, genotypic clusters, and virulence gene profiles of Escherichia coli strains from diverse human and animal sources

Article Abstract:

The analysis of Escherichia coli strains from diverse human and animal sources in Minnesota and western Wisconsin was carried out to determine the presence of genes coding for virulence factors. Results revealed that animal species might hold a greater number of potential pathogenic strains than other animal species.

Wisconsin, Analysis, Genetic aspects, Polymerase chain reaction, Virulence (Microbiology), Escherichia coli infections, Genetic code

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