| Species/Subspecies: | Streptococcus suis | |||||||||
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| Categories: | Zoonotic; 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 a pig | |||||||||
| Significance: | [Important] | |||||||||
| Taxonomy: | Class Bacilli Order Lactobacillales Family Streptococcaceae Genus Streptococcus |
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| Type Strain: | S735 = ATCC 43765 = CCUG 7984 = NCTC 10234. | |||||||||
| Macromorphology (smell):
| Small (about 1 mm in diameter) transluscent colonies after incubation for 24 h at 37°C on blood agar. Gives (greenish), alpha-hemolysis on blood agar. Some strains may have beta-hemolysis (see Fig. 147:1-2 to the left). | |||||||||
| Micromorphology: | Nonmotile coccoid (< 2 µm in diameter). | |||||||||
| Gram +/Gram -: | G+ | |||||||||
| Metabolism: | Facultatively anaerobic | |||||||||
| Catalase/Oxidase: | -/? | |||||||||
| Other Enzymes: | Esculinase +, hippuricase -, 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 v D-sorbitol - starch ? |
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| Disease: |
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| Genome Sequence: |
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| 16S rRNA Seq.: |
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| Taxonomy/phylogeny:
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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. | |||||||||
| Comment: | Belongs to Lancefield's group R, S, T or NG (= non-groupable) streptcocci. | |||||||||
| Updated: | 2023-03-08 |