Aeromonas tecta sp. nov., isolated from clinical and environmental sources

Demarta, Antonella; Küpfer, Mara; Riegel, Philippe; Harf-Monteil, Colette; Tonolla, Mauro; Peduzzi, Raffaele; Monera, Arturo; Saavedra, María José; Martínez‐Murcia, Antonio

doi:10.1016/j.syapm.2008.04.005

Cited by 55 publications

(32 citation statements)

References 27 publications

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“…Descriptions of new species based upon such a limited ecodistribution may significantly bias the phenotype, and even perhaps the genotype, of the species and type strain designation. In six studies where both 16S rRNA gene sequence and DNA hybridization data were available, only in the A. tecta study was there agreement between both methods in regards to the nearest neighbor (59). For the seventh species (A. sharmana), the closest neighbor by 16S rRNA gene sequencing was an uncultured bacterium (255).…”

Section: Recently Described Aeromonas Speciesmentioning

confidence: 99%

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The GenusAeromonas: Taxonomy, Pathogenicity, and Infection

2010

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SUMMARY Over the past decade, the genus Aeromonas has undergone a number of significant changes of practical importance to clinical microbiologists and scientists alike. In parallel with the molecular revolution in microbiology, several new species have been identified on a phylogenetic basis, and the genome of the type species, A. hydrophila ATCC 7966, has been sequenced. In addition to established disease associations, Aeromonas has been shown to be a significant cause of infections associated with natural disasters (hurricanes, tsunamis, and earthquakes) and has been linked to emerging or new illnesses, including near-drowning events, prostatitis, and hemolytic-uremic syndrome. Despite these achievements, issues still remain regarding the role that Aeromonas plays in bacterial gastroenteritis, the extent to which species identification should be attempted in the clinical laboratory, and laboratory reporting of test results from contaminated body sites containing aeromonads. This article provides an extensive review of these topics, in addition to others, such as taxonomic issues, microbial pathogenicity, and antimicrobial resistance markers.

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Section: Recently Described Aeromonas Speciesmentioning

confidence: 99%

“…Data from published studies were selected on the basis of study populations, methods of analysis and identification, and other selected factors (7,22,59,129,130,181,195,197,201,205,206,207,223,254 Aeromonas and drinking water. Aeromonas species can be found in various concentrations in drinking water.…”

Section: Fish Diseasesmentioning

confidence: 99%

The GenusAeromonas: Taxonomy, Pathogenicity, and Infection

2010

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“…Janda and Abbott also noted that Aeromonas tecta is the most recently identified and validated Aeromonas species that has been linked to human disease, having been isolated from clinical samples. 5,6 Four additional novel Aeromonas species have been proposed during 2010; Aeromonas diversa, 7 Aeromonas fluvialis, 8 Aeromonas taiwanensis and Aeromonas sanarellii. 9 Of these A. diversa, A. taiwanensis and A. sanarellii are likely to have clinical significance having been isolated from wounds.…”

Section: Microbiologymentioning

confidence: 99%

Aeromonas spp. clinical microbiology and disease

Parker¹,

Shaw²

2011

Journal of Infection

333

255

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“…Sarkar, et al, also implied the less discriminatory power of SDS-PAGE and offered Random Amplied Polymorphic DNA (RAPD) analysis as an ideal tool for molecular characterization [10]. Demarta, et al, characterized clinical and environmental Aeromonas isolates by a polyphasic approach including phylogenetic analysis derived from gyrB, rpoD, and 16S rRNA gene sequencing as well as DNA-DNA hybridization together with extensive biochemical tests and described a novel species named as Aeromonas tecta [11].…”

Section: Sds-page Analysismentioning

confidence: 99%

Untitled

2015

J Genet Genome Res

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The genus Aeromonas is widely distributed in aquatic environments and certain strains are serious pathogens in poikilothermic animals and humans. Human infections related with this pathogen include gastroenteritis, urinary tract infections, pneumonia, wound infections and septicemia. In this study, both the correct medical diagnosis with taking advantages of molecular approaches and a brief investigation of the enzymatic activity potential of Aeromonas were aimed. Aeromonas spp. isolates were collected from different stream samples of Sinop, Turkey and were identified according to morphological, physiological and biochemical tests based on API 20NE (Biomeriux, France). The evaluation of total cell protein profiles and molecular identification based on 16S rRNA sequencing were conducted. Amylase, cellulase and protease enzyme activities of strains were also determined. The strains were separated into two clusters of 73% and over according to the SDS-PAGE total cell protein profiles reflecting a less discriminative power for this method in the strain identification. On the other hand, according to the 16S rRNA sequence analysis results, two isolates were identified as Aeromonas tecta and the other two as Aeromonas veronii at 99% similarity level reflecting the superiority of this approach when compared with SDS-PAGE profile. Enzyme assays showed that; three of the isolates were able to produce the amylase and only one could produce the cellulase but none produced the protease enzyme. Though our results are based on limited samples, enzyme activity potential of Aeromonas is recommended to be further investigated in detail in future studies. Pollution of the water by organic materials is a serious environment and health problem and thus bacterial extracellular enzyme activities degrading these pollutants in aquatic environments may reflect a bioremediation strategy in terms of a biotechnological perspective. Taking into consideration of Aeromonas in human infections, the realiable identification based on molecular techniques is an obligatory for medical practice. Besides, exploiting this pathogen in search of enzyme activities may broaden our biotechnology perspective.

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Aeromonas tecta sp. nov., isolated from clinical and environmental sources

Cited by 55 publications

References 27 publications

The GenusAeromonas: Taxonomy, Pathogenicity, and Infection

The GenusAeromonas: Taxonomy, Pathogenicity, and Infection

Aeromonas spp. clinical microbiology and disease

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