Veterinary bacteriology: information about important bacteria
|Category:||Primarily of interest in human medicin|
|Etymology:||Genus name: Porphyrin unit (cell).|
Species epithet: refers to the gums (gingival).
|Significance:||[Of minor importance]|
|Type Strain:||2561 = ATCC 33277 = CCUG = NCTC 11834.|
|Macromorphology (smell):||Forms brown or black colonies on blood agar due to protoheme production (0.5-3.0 mm in diameter).|
|Micromorphology:||Forms short rods (0.3-1 x 0.8-3.5 µm).|
|Gram +/Gram -:||G -|
|Other Enzymes:||Esculinase -, lipase -, tryptophanase (indole) +,|
|Disease:||Peridontitis, may also cause extraoral infections.
|Clinical Picture:||Toth loss|
|16S rRNA Seq.:|
||About 15 species have been described within genus Porphyromonas. Many species, which were earlier affiliated with genus Bacteroides, have now been transfered to genus Porphyromonas or genus Prevotella. These three genera are related and belong to the order Bacteroidales.|
|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...
|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...