This test is useful in the initial differentiation of Proteus, Morganella, and Providencia species from the rest of the Enterobacteriaceae.
A) Oxidation-fermentation
B) Methyl red
C) Amino acid decarboxylase
D) Phenylalanine deaminase

Question

Quizplus · Accepted Answer

Phenylalanine deaminase test is useful in differentiating Proteus, Morganella, and Providencia species from other Enterobacteriaceae because these organisms are capable of deaminating phenylalanine to phenylpyruvic acid, a reaction that is not common among other Enterobacteriaceae.

This Test Is Useful in the Initial Differentiation of Proteus