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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Proteus mirabilis
Category: Motile
Etymology: Genus name: named after an ocean god (Proteus), who could transform himself into different shapes
Species epithet: wonderful
Significance:  [Very important]   
Taxonomy:
Phylum
Proteobacteria
Class
Gammaproteobacteria
Order
Enterobacterales
Family
Morganellaceae 
Genus
Proteus
Type Strain: ATCC 29906 = CCUG 26767 = NCTC 11938.
Macromorphology (smell):
 
Swarms across the blood agar plate and gives no individual colonies.
Micromorphology: Small (0.5 x 1-3 µm) and motile rod with peritrichous flagella.
Gram +/Gram -:
 
G-
Metabolism: Fakultatively anaerobic
Catalase/Oxidase:+/-
Other Enzymes: Urease +
Biochemical Tests: Methyl Red +, tryptophanase (indole) -, Voges-Proskauer V
Fermentation of carbohydrates:
D-glucoselactosemaltoseL-rhamnosesucrose
+---(-)
L-arabinosecellobioseD-mannitolsalicintrehalose
----+
glycerolinulinraffinoseD-sorbitolstarch
v?--?
Gas and acid are formed during fermentation of glucose.
Spec. Char.:
Special Media:
Proteus mirabilis  
P. mirabilis swarms on purple agar, but not on MacConkey agar or CLED agar.
Disease:
HostsDiseaseClinical picture
DogOtitis and urinary tract infectionsOpportunistic pathogen, which belongs to the normal gut flora of animals
Genome Sequence:
Acc-noStrainSize (bp)Genome
NC_010554 HI4320 4 063 606 1c + 1c 

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
AF008582 ATCC 29906T 1497 

Taxonomy/phylogeny:
 
Ten species have been deskribed within genus Proteus and these are found in nature as saprophytes.
Comment:Swarms
Reference(s): No. 174
Updated:2022-09-21

News

New names of taxa within the classification category phylum

During October 2021, an article was published by A. Oren och G.M. Garrity, in which new names are proposed for a number of taxa within the classification category phylum. This has resulted in many discussions in social media about whether it was really necessary to make these changes, which have created confusion among microbiologists and other professionals who come into contact with bacteriology.

Published 2022-09-28. Read more...

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