DOUBLE HYDROXYLATION REACTIONS IN MICROORGANISMS.

V SUBRAMANIAN, M SUGUMARAN, C S VAIDYANATHAN

Abstract


The initial reactions involved in the degradation of aromatic hydrocarbons such as benzene, naphthaelene, toluene, xylene, biphenyl, benzopyrene and benzoanthracene are discussed. The mechanism of oxidation of indole and pyrazon are described. Double hydroxylation reactions of benzoic acid,ioluic acid, cumic acid and phthalic acid as well as the metabolic fate of aniline and anthranilic acid are illustrated. The enzymes involved in the double hydroxylation of the compounds in bacteria have teen compared with those of the fungal system. The classification of oxygenases has been altered to define appropriately the double hydroxylating enzymes of the bacterial and fungal systems.

Keywords


Double hydroxylations, aromatic hydrocarbons, benzoic acids, anilines, microbial metabolism.

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