Journal cover Journal topic
Biogeosciences An interactive open-access journal of the European Geosciences Union
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BG | Volume 15, issue 12
Biogeosciences, 15, 3873–3882, 2018
https://doi.org/10.5194/bg-15-3873-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Biogeosciences, 15, 3873–3882, 2018
https://doi.org/10.5194/bg-15-3873-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 27 Jun 2018

Research article | 27 Jun 2018

Estimation of isotope variation of N2O during denitrification by Pseudomonas aureofaciens and Pseudomonas chlororaphis: implications for N2O source apportionment

Joshua A. Haslun et al.
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Short summary
N2O δ15N and δ18O values changed non-linearly during in vitro N2O production by bacterial denitrification of NO3, an argument against their use in N2O apportionment. We present a novel approach for describing non-linear isotopic behaviour, which may be applied to other multi-step reactions. We also show that the intramolecular distribution of 15N in N2O, used to apportion N2O emissions to denitrification and nitrification, is unaffected by electron donor source and electron donor concentration.
N2O δ15N and δ18O values changed non-linearly during in vitro N2O production by bacterial...
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