title: Reduction of nitrosubstituted aromatic compounds by the halophilic anaerobic eubacteria Haloanaerobium praevalens and Sporohalobacter marismortui.
abstract: The moderately halophilic, obligately anaerobic eubacteria Haloanaerobium praevalens DSM 2228 and Sporohalobacter marismortui ATCC 35420 are able to reduce a variety of nitrosubstituted aromatic compounds at a high rate to the corresponding amines. Compounds degraded included nitrobenzene, o-nitrophenol, m-nitrophenol, p-nitrophenol, nitroanilines, 2,4-dinitrophenol, and 2,4-dinitroaniline. Most of these compounds, when added at concentrations of 50 to 100 mg/liter, were completely transformed within 24 h, but at the highest concentrations growth rates were somewhat lowered. Growth of H. praevalens in the presence of 14C-labeled p-nitrophenol showed that the compound was not incorporated by the cells or degraded to acid-volatile compounds.
authors.affiliation: Division of Microbial and Molecular Ecology, Alexander Silberman Institute of Life Sciences, Hebrew University of Jerusalem, Israel.
authors.forename: A
authors.initials: A
authors.lastname: Oren
authors.forename: P
authors.initials: P
authors.lastname: Gurevich
authors.forename: Y
authors.initials: Y
authors.lastname: Henis
mesh_terms: D000693:Anaerobiosis; D001673:Biodegradation, Environmental; D006216:Halobacteriaceae / Q000254:growth & development / Q000378:metabolism*; D009603:Nitroso Compounds / Q000378:metabolism*; D011083:Polycyclic Compounds / Q000378:metabolism*; D012988:Soil Microbiology
chemical_list: D009603:Nitroso Compounds; D011083:Polycyclic Compounds