|Etymology:||Genus name: twisted (like a chain) coccus (coccus means a grain or a berry and referrs to any spherical microorganism)|
Species epithet: of an udder.
|Significance:||In Sweden, the proportion of S. uberis -induced acute clinical mastitis constituted 11% over the past 10 years.
|Type Strain:||ATCC 19436 = CCUG 17930 och 27579 = NCTC 3858.|
||Small (about 1 mm in diameter) transluscent ond circular colonies with smoth edge after incubation for 24 h at 37°C on blood agar. Gives no hemolysis (referred to as gamma-hemolysis) on blodagar. Some strains may cause alpha-hemolysis.|
|Micromorphology:||Nonmotile cocci (less than 2 µm in diameter) in chains or pairs. The chains are often longer if the bacteria originate from a fluid culture.|
|Gram +/Gram -:||G+|
|Other Enzymes:||DNase -, esculinase +, hippuricase +, coagulase -|
|Biochemical Tests:||Voges-Proskauer +|
|Fermentation of carbohydrates:||
Other carbohydrates: amygdalin +, ribose +
||CAMP test negative.|
||SELMA- or SELMA Plus plates are used for cultivation of milk samples when mastitis is suspected.|
|16S rRNA Seq.:|
||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. S. uberis is closely related to S. porcinus.|
|Comment:||Belongs to Lancefield's group NG (= non-groupable) streptcocci.|
|Dissertation with bacteriological connection|
On Friday, November 24, at 09:15 Madeleine Moazzami defends her thesis with the title: "Foodborne bacteria in slaughterhouses with focus on cleaning and disinfection". The defense takes place in Lennart Kennes hall, BioCentrum, campus Ultuna. All interested parties are welcome to attend.Published 2023-11-20. Read more...