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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Streptococcus porcinus
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: from a pig
Significance:  [Of minor importance]   
Taxonomy:
Phylum
Bacillota
Class
Bacilli
Order
Lactobacillales
Family
Streptococcaceae 
Genus
Streptococcus
Type Strain: NCDO 600 = ATCC 43138 = CCUG 27628 = CCUG 41363 = NCTC 10999.
Macromorphology (smell): Small (about 1 mm in diameter) translucent colonies after incubation for 24 h at 37°C on blood agar. Give (clear) beta-hemolysis on blood agar.
Micromorphology:
Gram +/Gram -:G+
Metabolism: Fakultatively anaerobic
Catalase/Oxidase:-/?
Other Enzymes: Esculinase v, hippuricase -
Biochemical Tests: Voges-Proskauer +
Fermentation of carbohydrates:
D-glucose
+
lactose
v
maltose
+
L-rhamnose
-
sucrose
v
L-arabinose
-
cellobiose
v
D-mannitol
v
salicin
v
trehalose
+
glycerol
v
inulin
-
raffinose
-
D-sorbitol
+
starch
v
Other carbohydrates: amygdalin v, ribose +
Spec. Char.:
Disease:Submandibular lymphadenitis.
Hosts: Pig
Clinical Picture:
16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
X58315 (T) 1332  

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. porcinus is closely related to S. uberis.
Comment:Belongs to Lancefield's group E, P, U or V streptcocci.
Updated:2023-03-08

News

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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Swedish University of Agricultural Sciences