Veterinary bacteriology: information about important bacteria
|Etymology:||Genus name: named after the Swiss ophthalmologist V. Morax. |
Species epithet: of cattle.
|Type Strain:||ATCC 10900 = CCUG 2133 = NCTC 11013.|
||Small, dry colonies (1-2 mm in diameter). A hemolyszon is usually produced on blodagar.|
|Micromorphology:||Small nonmotile coccoid rods (1.0-1.5 x 1.5-2.5 µm), which are sometimes approaching the shape of cocci (0.6-1.0 µm in diameter). Appear singly, in pairs or as short chains.|
|Gram +/Gram -:||G-|
|Other Enzymes:||DNase -, tryptophanase (indole) -|
|Fermentation of carbohydrates:||Members of the genus Moraxella does not ferment carbohydrates.|
|Vector:||Autumn fly (Musca autumnalis) and other fly species|
|Virulence Factors:||Q-pili, which give the bacteria adhesion capability to epithelial cells in the cornea. I-pili, which contribute to bacterial survival in the host animal.|
|16S rRNA Seq.:|
||About 20 species have been described within genus Moraxella and these species are related to members of the genus Acinetobacter.|
|New names of bacterial phyla|
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...
|The taxonomy of chlamydias|
Species within the family Chlamydiaceae were previously divided into two genera Chlamydia and Chlamydophila. However, the differences between these two genera were not that great and many research groups have not accepted this division. Therefore, the genus Chlamydophila has been returned to the genus Chlamydia and this change has now been incorporated in VetBactPublished 2023-03-15. Read more...