Cyanate is a low abundance but actively cycled nitrogen compound in soil

Maria Mooshammer (Korresp. Autor*in), Wolfgang Wanek, S.H. Jones, Andreas Richter, Michael Wagner (Korresp. Autor*in)

Veröffentlichungen: Beitrag in FachzeitschriftArtikelPeer Reviewed

Abstract

Cyanate can serve as a nitrogen and/or carbon source for different microorganisms and as an energy source for autotrophic ammonia oxidizers. However, the extent of cyanate availability and utilisation in terrestrial ecosystems and its role in biogeochemical cycles is poorly known. Here we analyse cyanate concentrations in soils across a range of soil types, land management practices and climates. Soil cyanate concentrations were three orders of magnitude lower than ammonium or nitrate. We determined cyanate consumption in a grassland and rice paddy soil using stable isotope tracer experiments. We find that cyanate turnover was rapid and dominated by biotic processes. We estimated that in-situ cyanate production rates were similar to those associated with urea fertilizer decomposition, a major source of cyanate in the environment. We provide evidence that cyanate is actively turned over in soils and represents a small but continuous nitrogen/energy source for soil microbes.

OriginalspracheEnglisch
Aufsatznummer161
Seitenumfang10
FachzeitschriftCommunications Earth & Environment
Jahrgang2
Ausgabenummer1
DOIs
PublikationsstatusVeröffentlicht - 13 Aug. 2021

ÖFOS 2012

  • 106026 Ökosystemforschung
  • 106022 Mikrobiologie

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