Commensal Pseudomonas Species Isolated from Wastewater and Freshwater Milieus in the Eastern Cape Province, South Africa, as Reservoir of Antibiotic Resistant Determinants
| Autor: | Isoken H. Igbinosa, Anthony I. Okoh, Mvuyo Tom, Uchechukwu U. Nwodo, Anibal Sosa |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
integron
Nalidixic acid Tetracycline Health Toxicology and Mutagenesis lcsh:Medicine Fresh Water Microbial Sensitivity Tests Drug resistance Wastewater Integron Article Microbiology South Africa Antibiotic resistance Pseudomonas Ampicillin Drug Resistance Bacterial medicine biology multidrug resistant genes blaTEM lcsh:R Public Health Environmental and Occupational Health commensal biology.organism_classification Multiple drug resistance biology.protein Water Microbiology medicine.drug |
| Zdroj: | International Journal of Environmental Research and Public Health, Vol 9, Iss 7, Pp 2537-2549 (2012) International Journal of Environmental Research and Public Health; Volume 9; Issue 7; Pages: 2537-2549 International Journal of Environmental Research and Public Health |
| ISSN: | 1660-4601 |
| Popis: | Pseudomonas species are opportunistic pathogens with implications in a wide range of diseases including cystic fibrosis and sickle cell anaemia. Because of their status as multidrug resistant (MDR) and extremely drug resistant (XDR) bacteria Pseudomonas species represent a threat to public health. Prevalence, antibiogram and associated antibiotic resistant genes of Pseudomonas species isolated from freshwater and mixed liquor environments in the Eastern Cape Province of South Africa were assessed. Polymerase chain reaction (PCR) based technique was used to identify the isolates and screen for antibiotic resistant genes. The result shows occurrence of Pseudomonas spp. in freshwater and mixed liquor as follows: 71.42% and 37.5% (P. putida), 14.28% and 31.25% (P. flourescens), 7.14% and 6.25% (P. aeruginosa) and 7.14% and 25% for other Pseudomonas species respectively. Disk diffusion antibiogram of the Pseudomonas isolates from the two locations showed 100% resistance to penicillin, oxacillin, clindamycin, rifampicin and 100% susceptibility to ciprofloxacin and gentamicin with varied percentage resistances to cephalothin, nalidixic acid, tetracycline, and ampicillin. The blaTEM antibiotic resistant gene was detected in 12.5% of P. putida, 57.14% of P. fluorescens, 100% P. aeruginosa and 40% in other Pseudomonas species. Similarly, Integrons conserved segment were detected in 12.5% of P. putida, 57.14% of P. fluorescens, 100% of P. aeruginosa and 40% of other Pseudomonas species. The presence of blaTEM gene and integrons conserved segment in some of the isolates is worrisome and suggest Pseudomonas species as important reservoirs of multidrug resistance genes in the Eastern Cape Province environment. |
| Databáze: | OpenAIRE |
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