Aeromonadales ord. nov.

Martin‐Carnahan, Amy; Joseph, Shirley A.

doi:10.1007/0-387-28022-7_12

Cited by 117 publications

(63 citation statements)

References 3 publications

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“…As contact-borne, A. hydrophyila, A. sobria, and A. caviae may cause fish handler disease through skin wound infections and systemic infections, while as food-borne, A. hydrophyila may lead to gastroenteritis, diarrhea and systemic infections (Austin and Austin, 1999;Goni-Urriza et al, 2000;Lehane and Rawlin, 2000;Huddleston et al, 2006;Cabello et al, 2013). Of particular concern is A. veronii as the most frequent aeromonad isolated in summer, having a wide environmental host range, and being pathogenic to humans (Martin-Carnahan and Joseph, 2005). Patients with underlying medical conditions and immunocompromised hosts are more likely to succumb to Aeromonas infections, therefore a thorough history of occupational and recreational exposure is crucial for clinicians in order to provide the appropriate management (Igbinosa et al, 2012).…”

Section: Public Health Implicationsmentioning

confidence: 99%

Detection and diversity of aeromonads from treated wastewater and fish inhabiting effluent and downstream waters

Popović

Kazazić

Strunjak‐Perović

et al. 2015

Ecotoxicology and Environmental Safety

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a b s t r a c tA 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 10,000 Da. 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.

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Section: Public Health Implicationsmentioning

confidence: 99%

Detection and diversity of aeromonads from treated wastewater and fish inhabiting effluent and downstream waters

Popović

Kazazić

Strunjak‐Perović

et al. 2015

Ecotoxicology and Environmental Safety

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“…Bacteria of the genus Aeromonas are gram-negative bacilli, facultative anaerobes, usually oxidase and catalase positive, glucose fermenting and capable of reducing nitrate to nitrite (Martin-Carnahan & Joseph, 2005). These bacteria have been associated to aquatic environments and are usually isolated from foods of plant and animal origin (Fontes, 2009), being considered as emerging pathogens for both animals and humans.…”

Section: Resumen Comunicación Corta Aislamiento De Aeromonas Hydrophmentioning

confidence: 99%

Short communication. Isolation of Aeromonas hydrophila in piglets

Queiroga

Amaral

Branco

2012

Span. j. agric. res.

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The production of Alentejano breed pig started a recovery two decades ago due to increasing demand for gourmet products. These pigs are raised in rotational semi-extensive or extensive outdoor production systems in the "Montado" (green and cork oak forest), grazing and feeding acorns and other associated food resources. Bacteria of the genus Aeromonas are considered as emerging pathogens of importance for man and animals, but its involvement in swine is not well documented. In the context of a study made at the University of Évora to assess the specific diseases of Alentejano swine, diseased piglets from two farms were submitted for pathological and bacteriological examinations. Pathological examinations revealed changes characteristic of septicemia, and Aeromonas hydrophila was isolated in pure culture from multiple organs of piglets from both farms. Antibiotic sensitivity tests showed that the isolates from one of the farms were susceptible to gentamicin, oxitetracycline, neomycin, enrofloxacin, colistin sulfate, trimethoprim, ceftiofur, and amoxicillin plus clavulanic acid. In contrast, the A. hydrophila isolated in the other farm was resistant to all drugs tested but enrofloxacin. This is the first report in the world showing the relationship between septicemia and A. hydrophila infection in piglets. The importance of this finding is further reinforced by the fact that these bacteria can be highly resistant to antimicrobial agents.Additional key words: Alentejano swine breed; Iberian swine; emerging pathogens; resistance to antibiotics. Resumen Comunicación corta. Aislamiento de Aeromonas hydrophila en lechonesLa producción tradicional de cerdo de raza Alentejana se ha recuperado en los últimos años debido a la creciente demanda de productos tipo gourmet. Estos cerdos son criados en sistemas extensivos o semi-extensivos en la dehesa arbolada, en los que la ingestión de bellotas (Montanera) se complementa con otras fuentes de alimentación. Las bacterias del género Aeromonas son consideradas como patógenos emergentes de importancia para el hombre y los animales, pero su repercusión en ganado porcino es prácticamente desconocida. En un estudio realizado en la Universidad de Évora para determinar las enfermedades de los cerdos de esta raza, se realizó un examen anatomopatológico postmortem de lechones de dos granjas, se tomaron muestras de diversos órganos durante la necropsia y se examinaron bacteriológicamente. El examen patológico puso en evidencia lesiones típicas de septicemia en las dos granjas y de varios órganos se aisló Aeromonas hydrophila en cultivo puro. Las cepas aisladas en una de las granjas se mostraron sensibles, mediante un antibiograma, a gentamicina, oxitetraciclina, neomicina, enrofloxacina, sulfato de colistina, trimetoprim, ceftiofur y amoxicilina más ácido clavulánico. Sin embargo, las cepas aisladas en la otra granja fueron resistentes a todos los antibióticos estudiados con la excepción de la enrofloxacina. Esta constituye la primera cita de aislamiento de A. hydrophila en lecho...

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“…Futhermore, multiple hybridization groups (HGs) were revealed within each of mesophilic Aeromonas including A. sobria by DNA hibridization studies [28] . According to the last edition of Bergey's Manual of Systematic Bacteriology [17] , 17 HGs or "genomospecies" and 14 "phenospecies" which refers to a single heterogeneous species (such as A. sobria) containing multiple HGs within it are described. Although taxonomic confusions has been tried to solve, it is difficult to see the harmony between phenotypic and genotypic characteristics of Aeromonas species.…”

Section: Discussionmentioning

confidence: 99%

“…Macroscopically suspected colonies were selected. Strains were identified according to their Gram staining and biochemical characteristics based on Aerokey II group of tests for the identification of Aeromonas [16,17] .…”

Section: Aeromonas Sobria Strainsmentioning

confidence: 99%

Gökkuşağı Alabalıklarından (Oncorhynchus mykiss, Walbaum, 1972) İzole Edilen Aeromonas sobria Suşlarının Fenotip ve Genotip Yönünden Karşılaştırmalı Analizi

ÇİFTÇİ¹,

Onuk²,

Çiftçi³

et al. 2015

Kafkas Univ Vet Fak Derg

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Phenotypic and molecular characterization of Aeromonas sobria (A. sobria) isolates by antibiotyping, sodium dodecylsulphate-polyacrylamide gel electrophoresis (SDS-PAGE) analysis of whole cell proteins, random amplified polymorphic DNA-polymerase chain reaction (RAPD-PCR) was aimed in this study. For this aim, thirty-six A. sobria isolates were analysed. Isolates were divided into 12 different antibiotypes and 4 proteotypes according to their antibiotic susceptibilities and SDS-PAGE patterns, respectively. Thirteen RAPD types were observed among all isolates. In conclusion, the use of double or triple combination of typing methods in this study was found to be more useful for discriminating the strains. The results obtained from this study may give information about phenotypic and genotypic variability of the A. sobria strains isolated from different regions of Turkey and can be helpful to control disease in fish through guiding the antibiotic therapy and giving information that will be useful to development vaccine.

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Aeromonadales ord. nov.

Cited by 117 publications

References 3 publications

Detection and diversity of aeromonads from treated wastewater and fish inhabiting effluent and downstream waters

Detection and diversity of aeromonads from treated wastewater and fish inhabiting effluent and downstream waters

Short communication. Isolation of Aeromonas hydrophila in piglets

Gökkuşağı Alabalıklarından (Oncorhynchus mykiss, Walbaum, 1972) İzole Edilen Aeromonas sobria Suşlarının Fenotip ve Genotip Yönünden Karşılaştırmalı Analizi

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