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Segregation of nitrogen use between ammonium and nitrate of ectomycorrhizas and beech trees

Segregation of nitrogen use between ammonium and nitrate of ectomycorrhizas and beech trees

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LEBERECHT, Martin, Michael DANNENMANN, Javier TEJEDOR, Judy SIMON, Heinz RENNENBERG, Andrea POLLE, 2016. Segregation of nitrogen use between ammonium and nitrate of ectomycorrhizas and beech trees. In: Plant, Cell & Environment. 39(12), pp. 2691-2700. ISSN 0140-7791. eISSN 1365-3040

@article{Leberecht2016Segre-36468, title={Segregation of nitrogen use between ammonium and nitrate of ectomycorrhizas and beech trees}, year={2016}, doi={10.1111/pce.12820}, number={12}, volume={39}, issn={0140-7791}, journal={Plant, Cell & Environment}, pages={2691--2700}, author={Leberecht, Martin and Dannenmann, Michael and Tejedor, Javier and Simon, Judy and Rennenberg, Heinz and Polle, Andrea} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/36468"> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-01-03T10:12:33Z</dc:date> <dc:contributor>Dannenmann, Michael</dc:contributor> <dc:creator>Simon, Judy</dc:creator> <dc:contributor>Simon, Judy</dc:contributor> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-01-03T10:12:33Z</dcterms:available> <dc:contributor>Rennenberg, Heinz</dc:contributor> <dcterms:abstract xml:lang="eng">Here, we characterized nitrogen (N) uptake of beech (Fagus sylvatica) and their associated ectomycorrhizal (EM) communities from NH4+ and NO3−. We hypothesized that a proportional fraction of ectomycorrhizal N uptake is transferred to the host, thereby resulting in the same uptake patterns of plants and their associated mycorrhizal communities. 15N uptake was studied under various field conditions after short-term and long-term exposure to a pulse of equimolar NH4+ and NO3− concentrations, where one compound was replaced by 15N. In native EM assemblages, long-term and short-term 15N uptake from NH4+ was higher than that from NO3−, regardless of season, water availability and site exposure, whereas in beech long-term 15N uptake from NO3− was higher than that from NH4+. The transfer rates from the EM to beech were lower for 15N from NH4+ than from NO3−. 15N content in EM was correlated with 15N uptake of the host for 15NH4+, but not for 15NO3−-derived N. These findings suggest stronger control of the EM assemblage on N provision to the host from NH4+ than from NO3−. Different host and EM accumulation patterns for inorganic N will result in complementary resource use, which might be advantageous in forest ecosystems with limited N availability.</dcterms:abstract> <dc:language>eng</dc:language> <dcterms:issued>2016</dcterms:issued> <dc:creator>Rennenberg, Heinz</dc:creator> <dc:creator>Leberecht, Martin</dc:creator> <dc:contributor>Tejedor, Javier</dc:contributor> <dc:contributor>Polle, Andrea</dc:contributor> <dcterms:title>Segregation of nitrogen use between ammonium and nitrate of ectomycorrhizas and beech trees</dcterms:title> <dc:creator>Dannenmann, Michael</dc:creator> <dc:contributor>Leberecht, Martin</dc:contributor> <dc:creator>Polle, Andrea</dc:creator> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/36468"/> <dc:creator>Tejedor, Javier</dc:creator> </rdf:Description> </rdf:RDF>

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