Detection and diversity of aeromonads from treated wastewater and fish inhabiting effluent and downstream waters
| Autor: | Slavko Kepec, Ivančica Strunjak-Perović, Roberta Sauerborn Klobučar, Natalija Topić Popović, Snjezana P. Kazazic, Josip Barišić, Rozelinda Coz-Rakovac |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Veterinary medicine
Health Toxicology and Mutagenesis Sewage WWTP Aeromonas MALDI TOF MS API 20E wastewater Microbiology Feces Drug Resistance Multiple Bacterial Escherichia coli Animals Food Industry Aeromonas bestiarum Biology Effluent biology business.industry Fishes Public Health Environmental and Occupational Health General Medicine biology.organism_classification Pollution Aeromonas hydrophila Fecal coliform Aeromonas salmonicida Spectrometry Mass Matrix-Assisted Laser Desorption-Ionization Water Microbiology business Enterococcus Aeromonas veronii |
| Zdroj: | Ecotoxicology and Environmental Safety |
| Popis: | A two-season investigation of the wastewater treatment plant (WWTP) effluent, of related waters, sludge and fish across a wide area and 11 stations, with emphasis on Aeromonas spp. was conducted. Aeromonas veronii was the prevailing aeromonad isolated by MALDI TOF MS in the summer period. A rise of Aeromonas hydrophila was observed in summer in raw sewage, treated wastewater and effluent-carrying canal. The ratio of aeromonad species retrieved from fish tissues did not correspond with the water and sludge findings, as in spring in the effluent-carrying canal fish carried Aeromonas salmonicida ssp. salmonicida and Aeromonas bestiarum, while in summer mainly A. veronii and Acinetobacter johnsonii were isolated from fish tissues in the same location. No correlation was established between fecal coliforms/enterococci and aeromonad occurrence. All retrieved Aeromonas species demonstrated a distinct spectral pattern, with peaks showing unique mass distribution ranging from 4000 to 10,000Da. Hierarchical clustering separated aeromonads of all isolated species and clustered closely related strains together. Resistance was determined towards amoxicillin, and frequently towards sulfamethoxazole and erythromycin. In summer, a high proportion of water and sludge Aeromonas species demonstrated multiple resistance patterns towards five or more antimicrobials. The quinolone resistance of water aeromonads was mostly related to A. veronii. There are potential health concerns regarding aeromonad exposure amongst recreational fishermen who come into contact with fish inhabiting waters downstream from the WWTP, and WWTP workers who are occupationally exposed to wastewaters and their aerosols. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|