Veterinary bacteriology: information about important bacteria
|Etymology:||Genus name: twisted (like a chain) cocci (coccus means a grain or a berry and referrs to any spherical microorganism)|
Species epithet: in honor of the Belgian microbiologist Luc A. Devriese, who has worked with the taxonomy of the streptoccoci
|Significance:||Caries in horses in Sweden has become somewhat more common in recent years
[Of minor importance]
|Type Strain:||CCUG 47155|
|Macromorphology (smell):||Small hemolysing colonies (0.5-1 mm i diameter) after incubation for 24 h at 37°C on blood agar.|
|Micromorphology:||Single non-motile cocci, which may also occur in pair or short chains.|
|Gram +/Gram -:||G+|
|Other Enzymes:||Hippuricase +, urease -|
|Biochemical Tests:||Voges-Proskaur +|
|Fermentation of carbohydrates:||
Other carbohydrates: Amygdalin +, mellibiose +, ribose -.
|16S rRNA Seq.:|
||About 100 species have been described within the genus Streptococcus. Many species within the genus Enterococcus have earlier been classified as streptococci and, thus, they are closely related. S. devriesei is related to S. equi.|
|Comment:||Caries in horses is considered by some scientists to be caused by (among other bacteria) S. devriesei i>|
|Reference(s):||No. 129, 130|
|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...
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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...