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Sorokin, Dimitry Y. (author), Tikhonova, Tamara V. (author), Koch, Hanna (author), van den Berg, E.M. (author), Hinderks, Renske S. (author), Pabst, Martin (author), Kuenen, J.G. (author), van Loosdrecht, Mark C.M. (author), Lücker, Sebastian (author)
Dissimilatory nitrate reduction to ammonia (DNRA) is a common biochemical process in the nitrogen cycle in natural and man-made habitats, but its significance in wastewater treatment plants is not well understood. Several ammonifying Trichlorobacter strains (former Geobacter) were previously enriched from activated sludge in nitrate-limited...
journal article 2023
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Conthe Calvo, M. (author), Wittorf, Lea (author), Kuenen, J.G. (author), Kleerebezem, R. (author), van Loosdrecht, Mark C.M. (author), Hallin, Sara (author)
Reduction of the greenhouse gas N<sub>2</sub>O to N<sub>2</sub> is a trait among denitrifying and non-denitrifying microorganisms having an N<sub>2</sub>O reductase, encoded by nosZ. The nosZ phylogeny has two major clades, I and II, and physiological differences among organisms within the clades may affect N<sub>2</sub>O emissions from...
journal article 2018
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Conthe Calvo, M. (author), Wittorf, Lea (author), Kuenen, J.G. (author), Kleerebezem, R. (author), Hallin, Sara (author), van Loosdrecht, Mark C.M. (author)
Nitrous oxide (N<sub>2</sub>O) reducing microorganisms may be key in the mitigation of N<sub>2</sub>O emissions from managed ecosystems. However, there is still no clear understanding of the physiological and bioenergetic implications of microorganisms possessing either of the two N<sub>2</sub>O reductase genes (nosZ), clade I and the more...
journal article 2018
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van den Berg, E.M. (author), Perdigão Elisiário, M. (author), Kuenen, J.G. (author), Kleerebezem, R. (author), van Loosdrecht, Mark C.M. (author)
Denitrification and dissimilatory reduction to ammonium (DNRA) are competing nitrate-reduction processes that entail important biogeochemical consequences for nitrogen retention/removal in natural and man-made ecosystems. The nature of the available carbon source and electron donor have been suggested to play an important role on the outcome of...
journal article 2017
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van den Berg, E.M. (author), Rombouts, J.L. (author), Kuenen, J.G. (author), Kleerebezem, R. (author), van Loosdrecht, Mark C.M. (author)
Denitrification and dissimilatory nitrate reduction to ammonium (DNRA) are two microbial processes that compete for oxidized nitrogen compounds in the environment. The objective of this work was to determine the role of nitrite versus nitrate as terminal electron acceptor on the competition between DNRA and denitrification. Initially, a mixed...
journal article 2017
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van den Berg, E.M. (author), Boleij, M. (author), Kuenen, J.G. (author), Kleerebezem, R. (author), van Loosdrecht, Mark C.M. (author)
Denitrification and dissimilatory nitrate reduction to ammonium (DNRA) compete for nitrate in natural and engineered environments. A known important factor in this microbial competition is the ratio of available electron donor and elector acceptor, here expressed as Ac/N ratio (acetate/nitrate-nitrogen). We studied the impact of the Ac/N ratio...
journal article 2016
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