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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Staphylococcus intermedius
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:
Phylum
Firmicutes
Class
Bacilli
Order
Bacillales
Family
Staphylococcaceae 
Genus
Staphylococcus
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:
Staphylococcus intermedius  
D-glucoselactosemaltoseL-rhamnosesucrose
+v+-+
L-arabinosecellobioseD-mannitolsalicintrehalose
--v-+
glycerolinulinraffinoseD-sorbitolstarch
+?--?
Comments: Maltose is, however, negative or possible weakly positive under aerobic conditions on agar plates (see Fig. 22:3).
Other carbohydrates: Mannose +.
Spec. Char.: Temperature optimum: 30-40°C, but can grow between 15 and 45 °C.
Disease:
Hosts: Pigeon
Clinical Picture:
16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
D83369 ATCC 29663T 1 476  

Taxonomy/phylogeny:
 
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:2021-12-02

News

The revised taxonomy of the mollicutes

The revised taxonomy of mollicutes (mycoplasmas) has now been introduced on VetBact, which means that many of the species have been given new genus names or moved to another higher taxon. 

Published 2021-11-25. Read more...

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