Cell biology and molecular basis of denitrification.

@article{Zumft1997CellBA,
  title={Cell biology and molecular basis of denitrification.},
  author={Walter G. Zumft},
  journal={Microbiology and molecular biology reviews : MMBR},
  year={1997},
  volume={61 4},
  pages={
          533-616
        }
}
  • W. Zumft
  • Published 1 December 1997
  • Medicine, Biology
  • Microbiology and molecular biology reviews : MMBR
Denitrification is a distinct means of energy conservation, making use of N oxides as terminal electron acceptors for cellular bioenergetics under anaerobic, microaerophilic, and occasionally aerobic conditions. The process is an essential branch of the global N cycle, reversing dinitrogen fixation, and is associated with chemolithotrophic, phototrophic, diazotrophic, or organotrophic metabolism but generally not with obligately anaerobic life. Discovered more than a century ago and believed to… Expand
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New denitrifying strains of phototrophic bacteria isolated from photosynthetic sludge reactors for wastewater treatment were characterized and most closely resembled Rhodobacter sphaeroides but differed from this species in utilizing malonate and dulcitol but not tartrate as carbon sources and in their inability to grow anaerobically in darkness with trimethylamine N-oxide or dimethylsulfoxide as a terminal oxidant. Expand
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Evidence for the existence of pHCG3-coded structural genes of CO dehydrogenase was obtained from dot blot hybridizations employing synthetic oligodeoxynucleotides as heterologous probes for the detection of the S- and M-subunit genes. Expand
Denitrification by the fungus Cylindrocarpon tonkinense: anaerobic cell growth and two isozyme forms of cytochrome P-450nor
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The lack of nitrite-dependent N2O formation and/or cell growth during the anaerobic culture was not affected by further addition of ammonium ions but was suppressed by respiration inhibitors such as rotenone or antimycin, suggesting that denitrification plays a physiological role in respiration. Expand
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Concentrations of N(2)O above the ambient level in the atmosphere were found in human breath and appeared to increase after a meal of high-nitrate food. Expand
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TLDR
This work has presented the first demonstration that a eukaryote exhibits a marked denitrifying ability, and the first instance of a cytochrome P-450 that is involved in a reducing reaction with a distinct physiological significance against a hydrophilic, inorganic substrate. Expand
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TLDR
Fungal denitrification activities are localized to mitochondria and are coupled to the synthesis of ATP with energy yields of 0.88 to 1.4, depending upon whether malate/pyruvate or succinate were provided as substrates. Expand
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Bacterial survival often depends on the most efficient exploitation of the available resources. This is particularly true for the vital process of energy generation and the enteric bacteriumExpand
Halomonas desiderata sp. nov, a new alkaliphilic, halotolerant and denitrifying bacterium isolated from a municipal sewage works
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Study on the degradation of nitrocellulose has shown that a combination of chemical and biological methods may be applicable, and it is proposed that the organism be assigned to a new species within the genus Halomonas as HalomonAs desiderata sp. Expand
Regulation of oxidative phosphorylation: The flexible respiratory network ofParacoccus denitrificans
TLDR
Identification of the structural components that are involved in both the aerobic and the anaerobic respiratory networks of P. denitrificans and understanding of the regulation machinery is beginning to emerge and promises much excitement in discovery. Expand
Pyrobaculum aerophilum sp. nov., a novel nitrate-reducing hyperthermophilic archaeum
A novel rod-shaped hyperthermophilic archaeum has been isolated from a boiling marine water hole at Maronti Beach, Ischia, Italy. It grew optimally at 100 degrees C and pH 7.0 by aerobic respirationExpand
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