K. Shailubhai, S. Sahasrabudhe, K. Vora
May 1, 1983
Citations
0
Influential Citations
33
Citations
Journal
Fems Microbiology Letters
Abstract
The chlorinated derivatives of phenoxyacetic acid (PA) and benzoic acid may occur in natural water and soils because they are introduced deliberately or accidentally as pesticide residues or as industrial wastes. Without exception these halogehated aromatic compounds are markedly more ref rac tory to microbia l a t tack than nonhalogenated aromatics. When 3-chlorobenzoate (3Cba), 4-chlorophenol, 2,4-dichlorophenol (2,4DCP), and 2,4-dichlorophenoxy acetic acid (2,4-D) were utilized as sole sources of carbon and energy, the organically bound halogen was eventually eliminated after ring cleavage [1-4]. However, studies on bacterial degradation of 4-chlorobenzoate (4-Cba), 2,4-D and 2,4-dichlorophenoxybutyric acid, have indicated that halogen elimination also occurs by hydroxylation prior to ring cleavage [5-7]. In the present investigation, studies were carried out on the degradation of chlorinated derivatives of benzoic acid and phenoxyacetic acid by Aspergillus niger.