Bacteriological water quality in school’s drinking fountains and detection antibiotic resistance genes
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2017
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Resumo
The fecal coliform can contaminate water of human consumption causing problems to public health. Many of these
microorganisms may contain plasmid and transfer them to other bacteria. This genetic material may confer selective
advantages, among them resistance to antibiotics. The objectives of this study were to analyze the presence of fecal
coliforms in water and at drinker surface, to identify the existence of plasmid, conducting studies of resistance to anti‑
biotics, plasmid stability and capacity of bacterial conjugation. Were collected microorganisms in water of drinker sur‑
face and were used specific culture media and biochemical tests for identification of organisms, tests were performed
by checking the resistance to antibiotics (ampicillin 10 μg, tetracycline 30 μg, and ciprofloxacin 5 μg), was performed
extraction of plasmid DNA, plasmid stability and bacterial conjugation. Was obtained results of 31% of Salmonella spp.
and 51% for other coliforms. Among the samples positive for coliforms, 27 had plasmid stable and with the ability to
perform conjugation. The plasmids had similar forms, suggesting that the resistance in some bacteria may be linked
to those genes extra chromosomal.
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Microorganism, Plasmid stability, Bacterial conjugation, Contaminants, Water, Health
Citação
FREITAS, Denize Gomes et al. Bacteriological water quality in school?s drinking fountains and detection antibiotic resistance genes. Annals of Clinical Microbiology and Antimicrobials, London, v. 16, n. 1, e5, 2017. DOI: 10.1186/s12941-016-0176-7. Disponível em: https://ann-clinmicrob.biomedcentral.com/articles/10.1186/s12941-016-0176-7. Acesso em: 3 jun. 2025.