Veterinary bacteriology: information about important bacteria
|Etymology:||Genus name: named after the French veterinarian Edmond Nocard.|
Species epithet: star like.
|Type Strain:||ATCC 19247 = CCUG 10073 = NCTC 11293.|
|Macromorphology (smell):||Small and often irregular colonies (0.3-3 mm in diameter), which are yellowish due to pigment production.|
|Micromorphology:||Rod shaped but forms also branched filaments.|
|Gram +/Gram -:|
|Other Enzymes:||Esculinase -|
|Fermentation of carbohydrates:||N. asteroides does not ferment carbohydrates since it is an obligate aerobic bacterium.|
|Reservoir:||N. asteroides is naturally occuring in dust, soil, water, and on plants.|
|Disease:||Canine nocardiosis etc.
|Hosts:||Dog, cattle, pig, sheep|
|16S rRNA Seq.:|
||About 100 species have been described within genus Nocardia, which is closely related to the following genera: Rhodococcus och Crossiella.|
|Comment:||N. asteroides is an opportunistic pathogen for animals (inkluding humans).|
|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...