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Ammonia Oxidation Potentials and Ammonia Oxidizers of Lichen-Moss Vegetated Soils at Two Ice-free Areas in East Antarctica.


ABSTRACT: The maximum ammonia oxidation potential (AOP) of a topsoil in Langhovde, East Antarctica was 22.1±2.4? ?ng N g-1 dry soil h-1 (2? ?mM ammonium, 10°C, n=3). This topsoil exhibited twin AOP peaks (1 and 2? ?mM ammonium) at 10°C, but not at 20°C. Six and ten operational taxonomic units (OTUs) were identified for ammonia-oxidizing bacteria (AOB) and archaea (AOA) amoA, respectively. AOB were classified into Nitrosospira; the two dominant OTUs corresponded to the Mount Everest cluster. AOA were classified into three clusters; Nitrososphaera and Nitrosocosmicus were the two dominant clusters.

SUBMITTER: Hayashi K 

PROVIDER: S-EPMC7104286 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Ammonia Oxidation Potentials and Ammonia Oxidizers of Lichen-Moss Vegetated Soils at Two Ice-free Areas in East Antarctica.

Hayashi Kentaro K   Tanabe Yukiko Y   Fujitake Nobuhide N   Kida Morimaru M   Wang Yong Y   Hayatsu Masahito M   Kudoh Sakae S  

Microbes and environments 20200101 1


The maximum ammonia oxidation potential (AOP) of a topsoil in Langhovde, East Antarctica was 22.1±2.4‍ ‍ng N g<sup>-1</sup> dry soil h<sup>-1</sup> (2‍ ‍mM ammonium, 10°C, n=3). This topsoil exhibited twin AOP peaks (1 and 2‍ ‍mM ammonium) at 10°C, but not at 20°C. Six and ten operational taxonomic units (OTUs) were identified for ammonia-oxidizing bacteria (AOB) and archaea (AOA) amoA, respectively. AOB were classified into Nitrosospira; the two dominant OTUs corresponded to the Mount Everest c  ...[more]

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