|Species/Subspecies:||Klebsiella pneumoniae subsp. pneumoniae|
|Etymology:||Genus name: named after the German bacteriologist Edwin Klebs (1834-1913).|
Species epithet: of pneumonia. Subspecies epithet: see Species epithet.
|Type Strain:||ATCC 13883 = CCUG 225 = NCTC 9633.|
||Grey, round, shiny and mucoid colonies (>3 mm in diameter), which can be confused with colonies of Enterobacter spp. Does not give hemolysis on blood agar.|
|Micromorphology:||Nonmotile rods (0.3-1.0 x 0.6-6.0 µm), which appear singly, in pars or in short chains.|
|Gram +/Gram -:||G-|
|Other Enzymes:||β-glucoronidase - (cf. E. coli spp.), DNase -, esculinase +, ornithine decarboxylase -, tryptophanase - (= indol -), urease +.|
|Biochemical Tests:||Citrate +, hydrogen sulfide -, methyl red -, Voges-Proskauer +.|
|Fermentation of carbohydrates:||
Lactose + (although weaker than for instance E. coli). Ferments glucose under gas production.
|Spec. Char.:||K. pneumoniae can form about 80 different types of a capsule consisting of different variants of a polysaccharide.|
||SELMA- or SELMA Plus plates are used for milk samples and CLED agar for urine samples.|
|Virulence Factors:||LPS, capsule.|
|16S rRNA Seq.:|
||Within genus Klebsiella 13 species have been described. K. pneumoniae subsp. pneumoniae belongs to the family Enterobacteriaceae and is closely related to members of the genus Citrobacter. In fact, members of the genus Klebsiella and Citrobacter freundii form a monophyletic cluster (see Fig. 69:9 to the left).|
|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...