Species/Subspecies: | Aeromonas hydrophila subsp. hydrophila | ||||||||
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Categories: | Causes hemolysis; motile | ||||||||
Etymology: | Genus name: gas producing Species epithet: water loving | ||||||||
Significance: | [Important] | ||||||||
Taxonomy: | Class Gammaproteobacteria Order Aeromonadales Family Aeromonadaceae Genus Aeromonas |
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Type Strain: | ATCC 7966 = CCUG 14551 = NCTC 8049 | ||||||||
Macromorphology (smell):
| Grey-white translucent colonies (diameter 1-3 mm) with a buttery consistency and hemolysis | ||||||||
Micromorphology: | Motile rods with rounded ends and, sometimes coccoid, sometimes in pairs or short chains, monotrichous flagella | ||||||||
Gram +/Gram -: | G- | ||||||||
Metabolism: | Fakultatively anaerobic | ||||||||
Catalase/Oxidase: | +/+ | ||||||||
Other Enzymes: | DNase +, Esculinase +, ornithine decarboxylase -, tryptophanase + | ||||||||
Biochemical Tests: | Citrate v, Voges-Proskauer + | ||||||||
Fermentation of carbohydrates: | D-glucose + lactose v maltose + L-rhamnose v sucrose + L-arabinose v cellobiose - D-mannitol + salicin v trehalose + glycerol + inulin ? raffinose - D-sorbitol - starch ? |
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Spec. Char.: | Grows at 37°C | ||||||||
Special Media:
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Disease: | Hemorrhagic septicemia, food poisoning (humans) |
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Hosts: | Carp, cold-blooded animals, doplhins, humans | ||||||||
Clinical Picture: | Diarrhea (humans) | ||||||||
Virulence Factors: | Has enterotoxic, cytotoxic and cytotonic toxins | ||||||||
Genome Sequence: |
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16S rRNA Seq.: |
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Taxonomy/phylogeny:
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About 30 species have been described within the genus Aeromonas and they form a cluster, which is related to Pseudomonas spp. and Moraxella spp. and some other genera Three subspecies of A. hydrophila have been reported. | ||||||||
Reference(s): | No. 46 | ||||||||
Updated: | 2023-03-29 |
News |
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The revised taxonomy of the mollicutes (mycoplasmas)![]() About 2 years ago, the taxonomy of mycoplasmas was revised at VetBact, because a research group had proposed that 5 new genera should be included together with the genus Mycoplasma. This also had consequences for higher taxa within the phylum, which was then called Tenericutes. Now another group of researchers has suggested that the new names should be rejected. Published 2023-10-03. Read more... |