ISOLATION, CHARACTERIZATION, AND SUBSTRATE UTILIZATION OF A QUINOLINE-DEGRADING BACTERIUM

Citation
Ej. Oloughlin et al., ISOLATION, CHARACTERIZATION, AND SUBSTRATE UTILIZATION OF A QUINOLINE-DEGRADING BACTERIUM, International biodeterioration & biodegradation, 38(2), 1996, pp. 107-118
Citations number
31
Categorie Soggetti
Environmental Sciences","Biology Miscellaneous
ISSN journal
09648305
Volume
38
Issue
2
Year of publication
1996
Pages
107 - 118
Database
ISI
SICI code
0964-8305(1996)38:2<107:ICASUO>2.0.ZU;2-Q
Abstract
A Gram (+) rod-shaped organism identified as a Rhodococcus sp. capable of growth utilizing quinoline as the dominant carbon, energy, and nit rogen source was isolated from soil. The isolate, designated as Rhodoc occus sp. Q1 was also capable of growth on 2-hydroxyquinoline, pyridin e, 2,3-dimethylpyridine, catechol, benzoate, and protocatechuic acid, suggesting a diverse capacity for aromatic ring degradation. Concentra tions of quinoline in excess of 3.88 mM were toxic. Although ring nitr ogen was released into the growth medium as ammonium, quinoline degrad ation was not limited by the availability of inorganic N. A degradatio n product was isolated and identified as 2-hydroxyquinoline on the bas is of ultraviolet, fluorescence emission, and mass spectroscopy. When grown on quinoline or 2-hydroxyquinoline, this bacterium produced pigm ented compounds. Copyright (C) 1996 Published by Elsevier Science Limi ted.