VetBact
VetBact logo

VetBact

Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Morganella morganii subsp. morganii
Categories: Motile; in the normal flora
Etymology: Genus name: named after the Brittish bacteriologist H. de R. Morgan, who first studied this organism.
Species epithet: see Genus name.
Subspecies epithet: see Genus name.
Significance:Occurs as contaminants of meat and has a certain importance in food hygiene.
  [Of minor importance]   
Alternative Species Name(s):Proteus morganii
Taxonomy:
Phylum
Proteobacteria
Class
Gammaproteobacteria
Order
Enterobacterales
Family
Morganellaceae 
Genus
Morganella
Type Strain: ATCC 25830 = CCUG 6328 = NCTC 235.
Macromorphology (smell):
Micromorphology: Short, straight and motile rod with peritrichous flagella.
Gram +/Gram -:G-
Metabolism: Facultatively anaerobic
Catalase/Oxidase:+/-
Other Enzymes: DNase -, esculinase -, ornithine decarboxylase +, tryptophanase +, urease +.
Biochemical Tests: Citrate -, hydrogen sulfide v, methyl red +, Voges-Proskauer -.
Fermentation of carbohydrates:
D-glucoselactosemaltoseL-rhamnosesucrose
+----
L-arabinosecellobioseD-mannitolsalicintrehalose
-----
glycerolinulinraffinoseD-sorbitolstarch
(-)?--?
Most strains ferment glucose under acid production and 90% of these also under gas production.
Spec. Char.:
Disease:Otitis externa and cystitis in dogs. Skin abscesses and septicemia in reptiles.
Hosts: Belongs to the normal intestinal flora of mammals (including humans), and reptiles.
Clinical Picture:
16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
AY043390 AU1491 1448  

Taxonomy/phylogeny:
 
Two species have been described within genus Morganella and Morganella morgani has been further divided into two subspecies.
Comment:Similar in many respects to Proteus spp., but does NOT swarm on agar plates.
Reference(s): No. 174
Updated:2022-04-13

News

New families introduced within the order Enterobacterales
Phylogenetic tree for the order <i>Enterobacteriales</i>.

The order Enterobacterales (formerly called Enterobacteriales) previously consisted of bacteria with different properties and phylogenetically, these bacteria were far apart. In order for the taxonomy to be more in line with phylogeny, some of these bacteria have, therefore, been sorted into 6 new families.

Published 2022-04-13. Read more...

Recently Updated

Recent blog posts


Swedish University of Agricultural Sciences