Streptococcus parasuis
| Streptococcus parasuis | |
|---|---|
Scientific classification 
| |
| Missing taxonomy template (fix): | Streptococcus |
| Species: | Template:Taxonomy/StreptococcusS. parasuis
|
| Binomial name | |
| Template:Taxonomy/StreptococcusStreptococcus parasuis Nomoto et al. 2015
| |
| Type strain | |
| SUT-286T (= JCM 30273T, DSM 29126T) | |
Streptococcus parasuis is a species of Gram-positive, facultatively anaerobic bacteria in the genus Streptococcus. It was formally described in 2015 following its reclassification from serotypes 20, 22, and 26 of Streptococcus suis, based on phylogenetic and genomic evidence.[1]
Taxonomy
Streptococcus parasuis was delineated as a separate species from S. suis after analyses of 16S rRNA gene sequences, average nucleotide identity (ANI), and phenotypic traits showed significant divergence. Strains formerly classified as S. suis serotypes 20, 22, and 26 were reclassified as S. parasuis.[1]
Morphology and physiology
Streptococcus parasuis is a non-motile, coccus-shaped bacterium that occurs in chains or pairs. It is catalase-negative and α-hemolytic on blood agar. Growth occurs optimally at 37 °C under facultative anaerobic conditions.
Clinical significance
Although primarily isolated from pigs, S. parasuis has been recognized as a potential zoonotic pathogen. Clinical cases in humans, though rare, have included symptoms such as arthritis, peritonitis, and pneumonia.[2]
See also
- Streptococcus suis
- Zoonosis
References
- ↑ 1.0 1.1 Nomoto, R.; Maruyama, F.; Ishida, S.; Tohya, M.; Sekizaki, T.; Osawa, R. (February 2015). "Reappraisal of the taxonomy of Streptococcus suis serotypes 20, 22 and 26: Streptococcus parasuis sp. nov". International Journal of Systematic and Evolutionary Microbiology. 65 (Pt 2): 438–443. doi:10.1099/ijs.0.067116-0. PMID 25385995.
- ↑ Zheng, H.; Li, B.; Liu, X.; Zhang, W. (July 2021). "Investigation of the genomic and pathogenic features of the potentially zoonotic pathogen Streptococcus parasuis". Pathogens. 10 (7): 834. doi:10.3390/pathogens10070834. PMC 8200951 Check
|pmc=value (help). PMID 34204092 Check|pmid=value (help).
External links
- LPSN entry for Streptococcus parasuis
- NCBI Taxonomy Browser: Streptococcus parasuis
- BacDive entry for Streptococcus parasuis SUT-286T
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