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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Plesiomonas shigelloides
Etymology: Genus name: neighbour unit (to the genus Aeromonas)
Species epithet: similar to genus Shigella
Significance:  [Of minor importance]   
Taxonomy:
Phylum
Proteobacteria
Class
Gammaproteobacteria
Order
Enterobacterales
Family
"Incertae sedis" 
Genus
Plesiomonas
"Incertae sedis" means that the taxonomic affiliation has not been established.
Type Strain: M51 = ATCC 14029 = CCUG 410 = NCTC 10360
Macromorphology (smell):
   
Small convex colonies (1-3 mm in diameter). Does not give hemolysis on blood agar.
Micromorphology:
Gram +/Gram -:
 
G-
Metabolism: Facultatively anaerobic
Catalase/Oxidase:+/+
Fermentation of carbohydrates: Lactose -
Spec. Char.:
Special Media:
Plesiomonas shigelloides  
P. shigelloides is growing well on purple agar, but does not ferment lactose.
Disease:Enteric disease
Hosts: Fish, reptiles, mammals (inkluding man)
Clinical Picture: Diarrhea (man)
16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
M59159 (T) 1489  

Taxonomy/phylogeny:
 
Within the genus Plesiomonas, only one species have been described and this bacterium belongs to the family Enterobacteriaceae. P. shigelloides is not that closely related to other members of the family Enterobacteriaceae, which is in accordance with the fact that it is the only member of the family Enterobacteriaceae, which is oxidase positive.
Comment:Note: is the only member of the family Enterobacteriaceae, which is oxidase positive.
Reference(s): No. 30, 174
Updated:2022-04-15

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The taxonomic category phylum was previously not regulated by the International Code of Nomenclature of Prokaryotes (ICNP), but now this has changed and it was decided to revise the names of bacterial phyla. All phyla must be written in italics (which has been done on VetBact also before) and have the ending -ota.

Published 2023-03-01. Read more...
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