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http://hdl.handle.net/2445/167879
Title: | Biochemical identification and numerical taxonomy of Aeromonas spp. isolated from environmental and clinical samples in Spain |
Author: | Miñana i Galbis, David Farfán Sellarés, Maribel Lorén Egea, José Gaspar Fusté Munné, M. Carme |
Keywords: | Microbiologia Classificació Taxonomia (Biologia) Microbiology Classification Taxonomy (Biology) |
Issue Date: | 2002 |
Publisher: | Wiley |
Abstract: | <b>Aims:</b> To study the phenotypic characteristics of <i>Aeromonas</i> spp. from environmental and clinical samples in Spain and to cluster these strains by numerical taxonomy. <b>Methods and Results:</b> A collection of 202 <i>Aeromonas</i> strains isolated from bivalve molluscs, water and clinical samples was tested for 64 phenotypic properties; 91% of these isolates were identified at species level. <i>Aeromonas caviae</i> was predominant in bivalve molluscs and <i>Aerom. bestiarum</i> in freshwater samples. Cluster analyses revealed eight different phena: three containing more than one DNA-DNA hybridization group but including strains that belong to the same phenospecies complex (<i>Aerom. hydrophila</i>, <i>Aerom. sobria</i> and <i>Aerom. caviae</i>), <i>Aerom. encheleia</i>, <i>Aerom. trota</i> and three containing unidentified <i>Aeromonas</i> strains isolated from bivalve molluscs. <b>Conclusions:</b> <i>Aeromonas</i> spp. are widely distributed in environmental and clinical sources. A selection of 16 of the phenotypical tests chosen allowed the identification of most isolates (91%), although some strains remain unidentified, mainly isolates from bivalve molluscs, suggesting the presence of new <i>Aeromonas</i> species. Numerical taxonomy was not in total concordance with the identification of the studied strains. <b>Significance and Impact of the Study:</b> Numerical taxonomy of <i>Aeromonas</i> strains isolated from different sources revealed the presence of potentially pathogenic <i>Aeromonas</i> spp., especially in bivalve molluscs, and phena with unidentified strains that suggest new <i>Aeromonas</i> species. |
Note: | Versió postprint del document publicat a: https://doi.org/10.1046/j.1365-2672.2002.01711.x |
It is part of: | Journal of Applied Microbiology, 2002, vol. 93, num. 3, p. 420-430 |
URI: | http://hdl.handle.net/2445/167879 |
Related resource: | https://doi.org/10.1046/j.1365-2672.2002.01711.x |
ISSN: | 1364-5072 |
Appears in Collections: | Articles publicats en revistes (Biologia, Sanitat i Medi Ambient) |
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