Only three enzymes have been reported to be able to reduce nitrous oxide, namely nitrogenase, one multicopper oxidase and nitrous oxide reductase, with the latter being the only one with a relevant physiological activity. In this enzyme, reduction of nitrous oxide occurs in a unique catalytic ...
Abstract Biogeochemical cycling of nitrous oxide (N2O), a significant greenhouse gas (GHG), can influence global climate change. The production and emission of N2O mediated by hydrological regimes is particularly active in water level fluctuation zones (WLFZs). However, the hydrological mechanisms affe...
2024 Elsevier B.V.The hyporheic zones (HZs) are key sites of the production of nitrous oxide (N2O), a potent ozone-depleting greenhouse gas. Denitrification is the primary process of N2O production in HZs, including four reduction steps (NO3→NO2→NO→N2O→N2). Electron competition occurs be...
Nitrous oxide (N2O) generated during biological nitrogen removal in wastewater treatment processes has contributed an important proportion to the global warming effect. To evaluate the possibility of N2O emission mitigating by changing carbon source supply strategies, nitrogen transformation characteristics and...
(reduction of nitrate to N2as the end product). In addition, in organic matter- and iron-rich environments, iron (II) reacts with the reactive nitrogen to increase N2O production from abiotic denitrification38,39,40, which may also be a great contributor relative to BD. In fact, the ...
Fernández, Soil Water and Climate, University of Minnesota, St Paul, MN Unused agricultural applications of nitrogen (N) by corn (Zea mays L.) can contribute to nitrous oxide (N2O) emissions, water quality concerns, and overall reduction in farmers profitability. The objective of the study ...
Ammonia-oxidizing microorganisms (AOM) contribute to one of the largest nitrogen fluxes in the global nitrogen budget. Four distinct lineages of AOM: ammonia-oxidizing archaea (AOA), beta- and gamma-proteobacterial ammonia-oxidizing bacteria (β-AOB and γ-AOB) and complete ammonia oxidizers (comam...
Iron reduction in tidal flat sediment indicated by magnetic measurements and its significance in the study of heavy metal pollution Magnetic measurements and chemical analysis were conducted on the anoxic core sediment from the tidal flat along the southern bank of Yangtze Estuary. The ... ZHANG,Wei...
(reduction of nitrate to N2as the end product). In addition, in organic matter- and iron-rich environments, iron (II) reacts with the reactive nitrogen to increase N2O production from abiotic denitrification38,39,40, which may also be a great contributor relative to BD. In fact, the ...
Reduction of acetylene and nitrogen by a cobalt-porphyrin system. J. Am. Chem. Soc. 94, 1382–1384 (1972). Article CAS PubMed Google Scholar Ichikawa, M., Sonoda, R. & Meshitsuka, S. Specific catalysis by Co(II)phthalocyanine-tetrasulfonate in the selective reduction of acetylene with ...