Metabolism of naphthalenesulfonic acids by Pseudomonas sp. TA-2.

Open Access
Publisher Website
Google Scholar
Abstract
A 2-naphthylamine-1-sulfonate (tobias acid)-degrading Pseudomonas strain was isolated from soil. This organism degraded 1-naphtha lenesu Ifonate and 2-naphthol-1-sulfonate as well as tobias acid. When the cells grown on a nutrient medium were incubated with tobias acid, 1-naphthalenesulfonate, and 2-naphthol-1-sulfonate, salicylate was temporarily accumulated in the culture medium. A salicv late-degrading enzyme and a gentisate-degrading enzyme were induced by salicylate and gentisate, respectively. On the other hand, the enzymes which degrade sulfonated naphthalenes to salicylate were constitutive. Ammonia, sulfate, and a small amount of sulfite were detected in the course of degradation of tobias acid. 2-NaphthoI-8-sulfonate or l-naphthol-5-suIfonate was converted into 2, 4-dihydroxybenzoate or 2, 6-dihydroxybenzoate respectively. Both cis-1, 2-dihydroxy-1, 2-dihydro-3-naphthalenesulfonate and sulfate were formed when the cells were incubated with 2-naphthalenesulfonate. It is suggested that tobias acid was degraded by 1, 2-dioxygenation in the initial process of the degradation pathway.

This publication has 0 references indexed in Scilit: