Veterinary bacteriology: information about important bacteria
|Etymology:||Genus name: Greek actino ray, mykes fungus (referring to the radiating appearance of microcolonies).|
Species epithet: sticky.
|Significance:||[Of minor importance]|
|Type Strain:||ATCC 15987 = CCUG 14476 = NCTC 10951|
|Macromorphology (smell):||Medium sized, round, white and viscous kolonies (O.5-5 mm in diameter).|
|Micromorphology:||Small bent and nonmotile rods (diameter: 0.2-1.0 µm), sometimes branching filaments up to 50 µm|
|Gram +/Gram -:||G+|
|Metabolism:||Facultatively anaerobic, but needs 10% CO2 to grow anaerobically.|
|Other Enzymes:||DNase -, tryptophanase -, urease V|
|Biochemical Tests:||Methyl red +, Voges-Proskauer -|
|Fermentation of carbohydrates:||
Other carbohydrates: Xylose -
|16S rRNA Seq.:|
||The genus Actinomyces is composed of about 40 species, which are related to the genera Actinobaculum and Trueperella.|
|Comment:||The species definition has been changed and it is only strains belonging to the former serovar I that should be regarded as A. viscosus.|
|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...