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Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Aeromonas salmonicida subsp. salmonicida
Categories: Causes hemolysis; notifiable diseases and bacteria
Etymology: Genus name: gas producing.
Species epithet: salmon killer.
Subspecies epithet: see Species epithet.
Significance:  [Important]   
Taxonomy:
Phylum
Proteobacteria
Class
Gammaproteobacteria
Order
Aeromonadales
Family
Aeromonadaceae 
Genus
Aeromonas
Type Strain: ATCC 33658 = NCTC 12959
Macromorphology (smell):
   
Grey-white translucent colonies (diameter 1-3 mm) with a buttery consistency without hemolysis, produces a brown water soluble pigment on agar containing tyrosine or phenylalanine. Gives hemolysis on ox blood agar.
Micromorphology: Nonmotile rods with rounded ends, sometimes coccoid, sometimes in pairs or short chains.
Gram +/Gram -:
 
G-
Metabolism: Facultatively anaerobic
Catalase/Oxidase:+/+
Other Enzymes: Esculinase +, tryptophanase -
Biochemical Tests: Voges-Proskauer -
Fermentation of carbohydrates:
D-glucoselactosemaltoseL-rhamnosesucrose
+?+?-
L-arabinosecellobioseD-mannitolsalicintrehalose
+?++?
glycerolinulinraffinoseD-sorbitolstarch
?????
Ferments D-glucose under gas production.
Spec. Char.: Temperature optimum: 25°C, no growth at 37°C
Special Media:
Aeromonas salmonicida  
A. salmonicida subsp. salmonicida is growing well on purple agar, but does not ferment lactose. However, this bacterium produces redbrownish and watersoluble pigmen, which can be seen on the purple agar plate.
Disease:Furunculosis
Hosts: Salmonid fish
Clinical Picture:
Genome Sequence:
Acc-noStrainSize (bp)Genome
NC_009348 A449 4 702 402  

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
X74681 (T) 1460 

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 Five subspecies of A. salmonicida have been reported.
Comment:Furunculosis is a notifiable disease in Sweden
Updated:2021-12-02

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The revised taxonomy of the mollicutes

The revised taxonomy of mollicutes (mycoplasmas) has now been introduced on VetBact, which means that many of the species have been given new genus names or moved to another higher taxon. 

Published 2021-11-25. Read more...

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