CRAMP AGAR BASE (CONGO RED-ACID MORPHOLINE PROPANE SULPHONIC ACID PIGMENTATION AGAR)

Yersinia is a gram-negative bacillus belonging to the family Enterobacteriaceae. Yersinia is usually nitrate reductase positive, oxidase negative, urease positive and generally has both respiratory and fermentative type of metabolism. CRAMP (Congo Red Acid Morpholine propane sulfonic acid Pigmentation) Agar Base is used for the cultivation of Yersinia species with plasmids. The congo red reaction is used for virulence test of Yersinia and to identify Plasmid bearing colonies, since pathogenicity is associated with the presence of plasmids.

for cultivation of Yersinia species with plasmids