denitrifying bacterium

Also found in: Medical.
Related to denitrifying bacterium: Nitrifying Bacterium

de·ni·tri·fy·ing bacterium

Any of various bacteria that convert nitrate or nitrite into nitrogen gas in the absence of oxygen and play an important role in the nitrogen cycle.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
While conducting the study a newly anaerobic denitrifying bacterium, A14, with high denitrification and Mn(II) oxidation ability was isolated from sediments.
UTO73Ps 11,0 Pseudomonas stutzeri DSM 10701 UTO02UB 10,6 Uncultured denitrifying bacterium: Laizhou Bay sediment UTO06UB 7,0 Uncultured bacterium clone: DGGE band UZ4D nosZ UTO45Ps 5,3 Pseudomonas balearica DSM 6083 UTO72Ps 4,1 Pseudomonas sp.
Zhao, "Isolation and characterization of a novel heterotrophic nitrifying and aerobic denitrifying bacterium Pseudomonas stutzeri KTB for bioremediation of wastewater," Biotechnology and Bioprocess Engineering, vol.
A denitrifying bacterium contains nitrite reductase as either the cytochrome [cd.sub.1] (NirS) or the copper-containing (NirK) enzyme and an individual organism contains a single type of the nitrite reductase gene, either nirS or nirK [3, 32, 33].
aeruginosa indeed represent the SH decarboxylase for heme [d.sub.1] formation in this denitrifying bacterium. Finally, DDSH was also formed in vivo when AhbA and AhbB from M.