Bacteriological water quality in school's drinking fountains and detection antibiotic resistance genes.
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 antibiotics, plasmid stability and capacity of bacterial conjugation. Were collected microorganisms in water of drinker surface 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.
Biology Department, State University of Goiás UEG, Morrinhos, Brazil.
Denize
D
Gomes Freitas
IPTSP Department, Federal University of Goiás, Goiânia, Brazil.
Rassan Dyego Romão
RD
Silva
Biophysic Department, Federal University of Goiás, Goiânia, Brazil.
Luis Artur Mendes
LA
Bataus
IPTSP Department, Federal University of Goiás, Goiânia, Brazil.
Mônica Santiago
MS
Barbosa
IPTSP Department, Federal University of Goiás, Goiânia, Brazil.
Carla Afonso
CA
da Silva Bitencourt Braga
IPTSP Department, Federal University of Goiás, Goiânia, Brazil. carlacarneirolilian@gmail.com.|, 235 Street, Leste Universitário Neighborhood, Goiânia, GO, 74605-050, Brazil. carlacarneirolilian@gmail.com.
Lilian Carla
http://orcid.org/0000-0003-4067-1506
LC
Carneiro
D000667:Ampicillin / Q000494:pharmacology; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D002939:Ciprofloxacin / Q000494:pharmacology; D003227:Conjugation, Genetic / Q000235:genetics*; D060766:Drinking Water / Q000382:microbiology*; D024881:Drug Resistance, Bacterial / Q000235:genetics; D004755:Enterobacteriaceae / Q000187:drug effects* / Q000235:genetics / Q000254:growth & development / Q000302:isolation & purification; D006801:Humans; D008826:Microbial Sensitivity Tests; D010957:Plasmids / Q000737:chemistry / Q000302:isolation & purification / Q000378:metabolism*; D012574:Schools; D013752:Tetracycline / Q000494:pharmacology; D060753:Water Quality
D000900:Anti-Bacterial Agents; D060766:Drinking Water; D002939:Ciprofloxacin; D000667:Ampicillin; D013752:Tetracycline
Bacterial conjugation; Contaminants; Health; Microorganism; Plasmid stability; Water