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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Streptococcus equi subsp. ruminatorum
Category: Causes hemolysis
Etymology: Genus name: twisted (like a chain) coccus (coccus means a grain or a berry and referrs to any spherical microorganism).
Species epithet: of horse.
Subspecies epithet: of ruminants.
Significance:  [Of minor importance]   
Taxonomy:
Phylum
Bacillota
Class
Bacilli
Order
Lactobacillales
Family
Streptococcaceae 
Genus
Streptococcus
Type Strain: Mt 167 = CCUG 47520
Macromorphology (smell): Form non-pigmented, mucoid colonies after incubation for 24 h at 37°C on blood agar. The colonies give (clear) β-hemolysis on sheep blood agar.
Micromorphology: Nonmotile chain-forming cocci.
Gram +/Gram -:G+
Metabolism: Facultatively anaerobic
Catalase/Oxidase:-/?
Other Enzymes: Hippurate +, urease -
Biochemical Tests: Voges-Proskauer -
Fermentation of carbohydrates:
D-glucose
?
lactose
+
maltose
?
L-rhamnose
?
sucrose
-
L-arabinose
?
cellobiose
?
D-mannitol
?
salicin
?
trehalose
-
glycerol
?
inulin
?
raffinose
?
D-sorbitol
-
starch
?
Other carbohydrates: Amygdalin ?, ribose +.
Spec. Char.:
Disease:Mastitis
Hosts: Sheep, goat
Clinical Picture:
16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
AJ605748 CECT 5772T 1410  

Taxonomy/phylogeny:
 
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. equi consists of three subspecies, which are related to S. devriesei.
Comment:Belongs to Lancefield's group C streptcocci.
Reference(s): No. 107
Updated:2023-03-08

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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 VetBact

Published 2023-03-15. Read more...

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