| Species/Subspecies: | Staphylococcus intermedius | ||||||||
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| Category: | Causes hemolysis | ||||||||
| Etymology: | Genus name: bunch of grape-like cocci (coccus means a grain or berry) Species epithet: intermediary (refers to its resemblance to both S. aureus and S. epidermidis) | ||||||||
| Significance: | [Of minor importance] | ||||||||
| Taxonomy: | Class Bacilli Order Bacillales Family Staphylococcaceae Genus Staphylococcus |
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| Type Strain: | H 11/68 = ATCC 29663 = CCUG 6520 and 27191 = NCTC 11048. | ||||||||
| Macromorphology (smell):
| Medium (2-4 mm in diameter) sized, opaque and white colonies. Low convex and with smooth edges. They often give a double hemolysis zone on blood agar (clear narrow inner zone and a broad turbid outer zone). | ||||||||
| Micromorphology: | Non-motile cocci (0.5-1.5 µm in diameter) in clusters. | ||||||||
| Gram +/Gram -: | G+ | ||||||||
| Metabolism: | Facultatively anaerobic | ||||||||
| Catalase/Oxidase: | +/- | ||||||||
| Other Enzymes: | Coagulase +, urease + | ||||||||
| Biochemical Tests: | Voges-Proskauer - | ||||||||
| Fermentation of carbohydrates:
| D-glucose + lactose v maltose + L-rhamnose - sucrose + L-arabinose - cellobiose - D-mannitol v salicin - trehalose + glycerol + inulin ? raffinose - D-sorbitol - starch ? Other carbohydrates: Mannose +. |
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| Spec. Char.: | Temperature optimum: 30-40°C, but can grow between 15 and 45 °C. | ||||||||
| Disease: | |||||||||
| Hosts: | Pigeon | ||||||||
| Clinical Picture: | |||||||||
| 16S rRNA Seq.: |
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| Taxonomy/phylogeny:
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About 70 species and subspecies have been described within the genus Staphylococcus. S. intermedius is closely related to S. pseudintermedius, S. delphini and S. schleiferi. | ||||||||
| Comment: | Purple agar with maltose is used for differentiation of S. aureus and S. pseudintermedius (see above). | ||||||||
| Updated: | 2023-03-08 |