Constitutive Synthesis of Enzymes Involved in 2-Aminophenol Metabolism and Inducible Synthesis of Enzymes Involved in Benzoate, p-Hydroxybenzoate, and Protocatechuate Metabolism in Pseudomonas sp. Strain AP-3

Abstract

Pseudomonas sp. strain AP-3 grows on benzoate, p-hydroxybenzoate, protocatechuate, and 2-aminophenol as sole carbon and energy source. This strain converted benzoate and p-hydroxybenzoate to catechol and protocatechuate respectively, which were metabolized via the ortho-cleavage pathway. The enzymes responsible for these reactions were shown to be inducible. In contrast, strain AP-3 constitutively expresses the enzymes involved in the metabolism of 2-aminophenol.