Veterinary bacteriology: information about important bacteria
|Etymology:||Genus name: named after the German microbiologist Hans Georg Trüper|
Species epithet: pus producing
|Alternative Species Name(s):||Corynebacterium pyogenes, Actinomyces pyogenes, Arcanobacterium pyogenes.|
|Type Strain:||C-100 = ATCC 19411 = CCUG 13230 = NCTC 5224|
||Very small white, opaque and glistening colonies (0.2-0.5 and 0,2-1,0 mm in diameter after 24 and 48 h, respectively) with β-hemolysis (clear hemolysis) on e.g. bovine, equine and sheep blood agar.|
|Micromorphology:||Small coccoid or pleomorphic nonmotile rods (0.5 x 2 µm), which appear singly, in pairs or short chains. The pairs are often V-shaped. They may also form filaments.|
|Gram +/Gram -:||G+|
|Fermentation of carbohydrates:||
The above scheme may vary between different strains.
||SELMA- or SELMA Plus plates are used for cultivation of samples from suspected mastitis cases.|
||Pyolysin (PLO), which lyse cells (cytolytic activity) of the host by forming transmembrane pores. Neuraminidases, adhesion factors like fimbriae, and ability to form biofilm, which all contribute to the colonization of the host tissues. See Fig. 1:8 on this page.|
|16S rRNA Seq.:|
||Presently, this genus is composed of only five species, which are closely related to the genus Actinobaculum.|
|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...