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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Moraxella osloensis
Etymology: Genus name: named after the Swiss ophthalmologist V. Morax.
Species epithet: from Oslo.
Significance:Is not important in veterinary medicine.
  [Of minor importance]   
Taxonomy:
Phylum
Proteobacteria
Class
Gammaproteobacteria
Order
Pseudomonadales
Family
Moraxellaceae 
Genus
Moraxella
Type Strain: A1920 = ATCC 19976 = CCUG 350 = NCTC 10465.
Macromorphology (smell): Forms small semiopaque colinies in 48 h (2-2.5 mm in diameter). No hemolysis on blood agar.
Micromorphology: Non-motile rod.
Gram +/Gram -:G-
Metabolism: Aerobic
Catalase/Oxidase:+/+
Other Enzymes: DNase -, tryptophanase (indole) -
Fermentation of carbohydrates: Members of the genusMoraxella do not ferment carbohydrates.
Spec. Char.:
Vector: The nematode Phasmarhabditis hermaphrodita and M. osloensis are mutualistic symbionts.
Disease:
Hosts: Slugs.
Clinical Picture: The infected slugs die in 4-10 days.
Virulence Factors: The lipopolysaccharide (LPS) of M. osloensis, which is an endotoxin that is lethal to certain slugs.
16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
AF005190 5873 1 448  

Taxonomy/phylogeny:
 
About 20 species have been described within genus Moraxella and these species are related to members of the genus Acinetobacter.
Comment:Is used for biological contol of slugs, particularly the grey field slug (Deroceras reticulatum) and Spanish slug (Arion vulgaris). The commersial product NemaSlug contains nematodes, which have been colonized in the gut by M. osloensis.
Updated:2018-09-27

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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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