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Aeromonas aquariorum : ウィキペディア英語版 | Aeromonas aquariorum
''Aeromonas aquariorum'' is a Gram-negative bacterium first isolated from aquariums in Portugal in 2005. The species is globally distributed in aquatic environments, like other species in the ''Aermonas'' genus. ==Isolation== ''A. aquariorum'' was first isolated in 2005 from samples obtained from fish aquariums in Porto, Portugal.〔Martinez-Murcia, A.J. "Aeromonas aquariorum sp. nov., isolated from aquaria of ornamental fish" International Journal of Systematic and Evolutionary Biology. 2012 http://ijs.sgmjournals.org/content/58/5/1169.long〕 ''Aeromonas'' species are widely distributed in aquatic environments. Prior to the discovery of ''A. aquariorium'', the most prevalent species identified were ''A. hydrophila'', ''A. caviae'', and ''A. veronii''. Once identified, researchers found the species to be globally distributed in aquatic environments, similar to the other members of the genus. Due to its similarity to ''A. hydrophila'', ''A. aquariorum'' went unrecognized prior to 2005. The two species differ in that ''A. hydrophila'' is able to produce acid from L-arabinose, while ''A. aquariorum'' cannot. ''A. hydrophila'' is also less likely to use citrate as a carbon source than ''A. aquariorum''. Because of its similarity to other species of ''Aeromonas'', ''A. aquariorum'' was identified using DNA-DNA hybridization techniques, which identified the strains as a unique species of ''Aeromonas''. Researchers focused on ''rpoD'' and ''gyrB'' genes, which clearly identified the strains as a new species distinct from ''A. hydrophila''.〔Aravena-Roman, Max, et al. "Aeromonas aquariorum Is Widely Distributed in Clinical and Environmental Specimens and Can Be Misidentified as Aeromonas hydrophila" Journal of Clinical Microbiology.2011. http://jcm.asm.org/content/49/8/3006.long〕
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