Differentiation of P. zopfii genotypes (biotypes)

 

The two P. zopfii genotypes are also known as "variants" 1 and 2. The formerly P. zopfii "variant" 3 was now described as P. blaschkeae sp. nov.

 

 Feature 

Genotype 1

 Genotype 2

Diameter of Sporangiospores   in [m]

 11 - 30

 5 - 15

 Shape of cells

 spheric/cylindric

 spheric/cylindric

 Assimilation of Galaktosea

 ++

(+)

 Assimilation of Glycerola

 +++

 +++

 pH-Tolerance

 2,4 9,5

 2,1 10,5

 NaCl-Tolerance

 4,0 %

 6,0 %

Growth at 37C

+ ++

 Habitats

In cattle stables and pigsties

Predominantly in cattle stables and local waste water

Pathogen of bovine mastitis 

no yes

        a; after 7 days  incubation

Biochemical differentiation      Serological Differentiation

Genetical Differentiation