Articles | Volume 17, issue 16
https://doi.org/10.5194/bg-17-4355-2020
https://doi.org/10.5194/bg-17-4355-2020
Research article
 | 
28 Aug 2020
Research article |  | 28 Aug 2020

Impact of reactive surfaces on the abiotic reaction between nitrite and ferrous iron and associated nitrogen and oxygen isotope dynamics

Anna-Neva Visser, Scott D. Wankel, Pascal A. Niklaus, James M. Byrne, Andreas A. Kappler, and Moritz F. Lehmann

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Cited articles

Anderson, I. C. and Levine, J. S.: Relative Rates of Nitric Oxide and Nitrous Oxide Production by Nitrifiers, Denitrifiers, and Nitrate Respirers, Appl. Environ. Microbiol., 51, 938–945, 1986. 
Andrews, S. C., Robinson, A. K., Rodriguez-Quinones, F., and Rodríguez-Quiñones, F.: Bacterial iron homeostasis, FEMS Microbiol. Rev., 27, 215–237, https://doi.org/10.1016/s0168-6445(03)00055-x, 2003. 
Baumgärtner, M. and Conrad, R.: Role of nitrate and nitrite for production and consumption of nitric oxide during denitrification in soil, FEMS Microbiol. Lett., 101, 59–65, https://doi.org/10.1111/j.1574-6968.1992.tb05762.x, 1992. 
Braun, V. and Hantke, K.: The Tricky Ways Bacteria Cope with Iron Limitation, Springer, Dordrecht, 31–66, 2013. 
Buchwald, C. and Casciotti, K. L.: Isotopic ratios of nitrite as tracers of the sources and age of oceanic nitrite, Nat. Geosci., 6, 308–313, https://doi.org/10.1038/ngeo1745, 2013. 
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This study focuses on the chemical reaction between Fe(II) and nitrite, which has been reported to produce high levels of the greenhouse gas N2O. We investigated the extent to which dead biomass and Fe(II) minerals might enhance this reaction. Here, nitrite reduction was highest when both additives were present but less pronounced if only Fe(II) minerals were added. Both reaction systems show distinct differences, rather low N2O levels, and indicated the abiotic production of N2.
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