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Dynamics and functional relevance of ammonia-oxidizing archaea in agricultural soil

Zugehörigkeit
Helmholtz Zentrum München, German Research Center for Environmental Health, Institute for Soil Ecology, Neuherberg, Germany
Schauss, Kristina;
Zugehörigkeit
University of Osnabrück, Institute of Environmental Systems Research, Osnabrück, Germany
Focks, Andreas;
Zugehörigkeit
University of Bergen, Institute for Biology, Bergen, Norway
Leininger, Sven;
Zugehörigkeit
Berlin University of Technology, Institute of Ecology, Berlin, Germany
Kotzerke, Anja;
GND
1058940058
Zugehörigkeit
Julius Kühn-Institute (JKI), Institute for Epidemiology and Pathogen Diagnostics, Germany
Heuer, Holger;
Zugehörigkeit
University of Trier, Department of Soil Science, Trier, Germany
Thiele-Bruhn, Sören;
Zugehörigkeit
Helmholtz Zentrum München, German Research Center for Environmental Health, Institute for Soil Ecology, Neuherberg, Germany
Sharma, Shilpi;
Zugehörigkeit
Berlin University of Technology, Institute of Ecology, Berlin, Germany
Wilke, Berndt-Michael;
Zugehörigkeit
University of Osnabrück, Institute of Environmental Systems Research, Osnabrück, Germany
Matthies, Michael;
GND
1058967878
Zugehörigkeit
Julius Kühn-Institute (JKI), Institute for Epidemiology and Pathogen Diagnostics, Germany
Smalla, Kornelia;
Zugehörigkeit
Helmholtz Zentrum München, German Research Center for Environmental Health, Institute for Soil Ecology, Neuherberg, Germany
Munch, Jean Charles;
Zugehörigkeit
University of Bonn, Institute of Crop Science and Resource Conservation – Soil Science and Soil Ecology, Bonn, Germany
Amelung, Wulf;
Zugehörigkeit
Berlin University of Technology, Institute of Ecology, Berlin, Germany
Kaupenjohann, Martin;
Zugehörigkeit
Helmholtz Zentrum München, German Research Center for Environmental Health, Institute for Soil Ecology, Neuherberg, Germany
Schloter, Michael;
Zugehörigkeit
University of Bergen, Institute for Biology, Bergen, Norway
Schleper, Christa

Crucial steps in geochemical cycles are in many cases performed by more than one group of microorganisms, but the significance of this functional redundancy with respect to ecosystem functioning is poorly understood. Ammonia‐oxidizing archaea (AOA) and their bacterial counterparts (AOB) are a perfect system to address this question: although performing the same transformation step, they belong to well‐separated phylogenetic groups. Using pig manure amended with different concentrations of sulfadiazine (SDZ), an antibiotic that is frequently used in veterinary medicine, it was possible to affect AOB and AOA to different degrees. Addition of manure stimulated growth of AOB in both soils and, interestingly, also growth of AOA was considerably stimulated in one of the soils. The antibiotic treatments decreased the manure effect notably on AOB, whereas AOA were affected to a lower extent. Model calculations concerning the respective proportions of AOA and AOB in ammonia oxidation indicate a substantial contribution of AOA in one of the soils that further increased under the influence of SDZ, hence indicating functional redundancy between AOA and AOB.

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