Veterinary bacteriology: information about important bacteria
|Categories:||Zoonotic; causes hemolysis|
|Etymology:||Genus name: club-shaped bakterium (bacterium means small rod).|
Species epithet: causing sore.
|Significance:||[Of minor importance]|
|Type Strain:||ATCC 51799 = CCUG 2708 = NCTC 7910.|
|Micromorphology:||Non-motile pleomorphic and coccoid rods.|
|Gram +/Gram -:||G+|
|Other Enzymes:||Esculinase -, hippuricase +, urease +.|
|Biochemical Tests:||Methyl red +.|
|Fermentation of carbohydrates:||
Fructose +, mannose ?, xylose -.
Abscesses (gangrenous dermatitis) in rodents.
|Hosts:||Cattle, rodents, humans|
|Virulence Factors:||Some strains of C. ulcerans are able to produce difteria toxin (see Corynebacterium diphtheria).|
|16S rRNA Seq.:|
||176 species and 13 subspecies are described within the genus Corynebacterium. However, not all names have been approved yet and some species have been affiliated to another genus. The genus Corynebacterium is closely related to the genera Mycobacterium, Nocardia, Rhodococcus and Crossiella.|
|Comment:||C. ulcerans may cause zoonosis.|
|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...