Abstract
The phylogenetic group distribution of Escherichia coli strains isolated from the Sorocaba and Jaguari Rivers located in the State of São Paulo, Brazil, is described. E. coli strains from group D were found in both rivers while one strain from group B2 was isolated from the Sorocaba river. These two groups often include strains that can cause extraintestinal diseases. Most of the strains analyzed were allocated into the phylogenetic groups A and B1, supporting the hypothesis that strains from these phylogenetic groups are more abundant in tropical areas. Though both rivers are located in urbanized and industrialized areas where the main source of water pollution is considered to derive from domestic sewage, our results suggest that the major sources of contamination in the sampling sites of both rivers might have originated from animals and not humans.
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Acknowledgments
This work was supported by grant 2000/05721-8 from Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP). R.H.O. had fellowship from CAPES. L.M.M.O. had research fellowship from Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq).
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Orsi, R.H., Stoppe, N.C., Sato, M.I.Z. et al. Phylogenetic group distribution among Escherichia coli isolated from rivers in São Paulo State, Brazil. World J Microbiol Biotechnol 24, 1573–1577 (2008). https://doi.org/10.1007/s11274-007-9644-8
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DOI: https://doi.org/10.1007/s11274-007-9644-8