Table 1.

Identification of P. vulgaris strains to DNA group level by biochemical methods

Test Result for the following P. vulgaris DNA groupa:
Group 2 Group 3 Group 4Group 5/6
Esculin hydrolysis +
Acid production from:
 Salicin+
l-Rhamnose+
Corn oil lipase elaborationv++
DNase elaboration++v
  • a Symbols and abbreviation: +, >85% positive; −, <15% positive; v, variable (11 to 85% positive).