Streptococcus porcorum
| Streptococcus porcorum | |
|---|---|
Scientific classification 
| |
| Domain: | Bacteria |
| Kingdom: | Bacillati |
| Phylum: | Bacillota |
| Class: | Bacilli |
| Order: | Lactobacillales |
| Family: | Streptococcaceae |
| Genus: | Streptococcus |
| Species: | S. porcorum
|
| Binomial name | |
| Streptococcus porcorum Vela et al., 2011
| |
| Type strain | |
| 682-03T (= DSM 28302, CCUG 58479, CECT 7593) | |
Streptococcus porcorum is a species of Gram-positive, catalase-negative, coccus-shaped bacteria within the genus Streptococcus. It was first described in 2011 following its isolation from domestic pigs and wild boars in Spain and Chile.[1]
Taxonomy
[edit]Streptococcus porcorum was initially characterized from clinical specimens from pigs with respiratory and joint disorders and healthy wild boars [1].. Based on 16S rRNA gene sequence analysis, the species showed closest phylogenetic relatedness to Streptococcus suis, but DNA–DNA hybridization values were significantly below species delineation thresholds, supporting its designation as a novel species within the genus Streptococcus.
Morphology and physiology
[edit]Cells of S. porcorum are spherical to ovoid cocci, typically 0.5–1.0 μm in diameter, occurring singly, in pairs, or in short chains. They are non-motile and facultative anaerobes. On blood agar plates, they produce α-hemolytic colonies approximately 1 mm in diameter after 24–48 hours of incubation at 37 °C.
Ecology
[edit]Streptococcus porcorum has been isolated from various anatomical sites in pigs, including the tonsils,[2] lungs with pneumonia, and joints in cases of arthritis.[1]
Type strain
[edit]The type strain is 682-03T, and it is preserved in the following culture collections:
See also
[edit]References
[edit]- ^ a b c Vela, A.I.; Sánchez, V.; Mentaberre, G.; Lavín, S.; Domínguez, L.; Fernández-Garayzábal, J.F. (July 2011). "Streptococcus porcorum sp. nov., isolated from domestic and wild pigs". International Journal of Systematic and Evolutionary Microbiology. 61 (Pt 7): 1585–1589. doi:10.1099/ijs.0.022657-0. PMID 20675439.
- ^ de Oliveira, I.M.F.; Fredriksen, S.; Gutiérrez, M.F.; Harmsen, H.J.M.; Boekhorst, J.; van Baarlen, P.; Wells, J.M. (29 March 2025). "Culturomics of the pig tonsil microbiome identifies new species and an untapped source of novel antimicrobials". Microbiome. 13 (1): 86. doi:10.1186/s40168-025-02064-3. PMC 11954270. PMID 40158143.