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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Aeromonas hydrophila subsp. hydrophila
Categories: Causes hemolysis; motile
Etymology: Genus name: gas producing
Species epithet: water loving
Significance:  [Important]   
Taxonomy:
Phylum
Proteobacteria
Class
Gammaproteobacteria
Order
Aeromonadales
Family
Aeromonadaceae 
Genus
Aeromonas
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-glucoselactosemaltoseL-rhamnosesucrose
+v+v+
L-arabinosecellobioseD-mannitolsalicintrehalose
v-+v+
glycerolinulinraffinoseD-sorbitolstarch
+?--?
D-glucose is fermented under gas production.
Spec. Char.: Grows at 37°C
Special Media:
Aeromonas hydrophila  
Disease:Hemorrhagic septicemia, food poisoning (humans)
Hosts: Carp, cold-blooded animals, doplhins, humans
Clinical Picture: Diarrhea (humans)
Virulence Factors: Has enterotoxic, cytotoxic and cytotonic toxins
Genome Sequence:
Acc-noStrainSize (bp)Genome
NC_008570 ATCC 7966 4 744 448  

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
X87271 (T) 1538 10 

Taxonomy/phylogeny:
 
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:2021-02-28

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