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231226s2024 xx |||||o 00| ||eng c |
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|a 10.1111/nph.19260
|2 doi
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|a pubmed24n1386.xml
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
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|a Mahmood, Shahid
|e verfasserin
|4 aut
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| 245 |
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|a Ectomycorrhizal fungi integrate nitrogen mobilisation and mineral weathering in boreal forest soil
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 25.04.2024
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|a Date Revised 25.04.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2023 The Authors. New Phytologist © 2023 New Phytologist Foundation.
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|a Tree growth in boreal forests is driven by ectomycorrhizal fungal mobilisation of organic nitrogen and mineral nutrients in soils with discrete organic and mineral horizons. However, there are no studies of how ectomycorrhizal mineral weathering and organic nitrogen mobilisation processes are integrated across the soil profile. We studied effects of organic matter (OM) availability on ectomycorrhizal functioning by altering the proportions of natural organic and mineral soil in reconstructed podzol profiles containing Pinus sylvestris plants, using 13CO2 pulse labelling, patterns of naturally occurring stable isotopes (26Mg and 15N) and high-throughput DNA sequencing of fungal amplicons. Reduction in OM resulted in nitrogen limitation of plant growth and decreased allocation of photosynthetically derived carbon and mycelial growth in mineral horizons. Fractionation patterns of 26Mg indicated that magnesium mobilisation and uptake occurred primarily in the deeper mineral horizon and was driven by carbon allocation to ectomycorrhizal mycelium. In this horizon, relative abundance of ectomycorrhizal fungi, carbon allocation and base cation mobilisation all increased with increased OM availability. Allocation of carbon through ectomycorrhizal fungi integrates organic nitrogen mobilisation and mineral weathering across soil horizons, improving the efficiency of plant nutrient acquisition. Our findings have fundamental implications for sustainable forest management and belowground carbon sequestration
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a boreal forests
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|a carbon allocation
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|a carbon sequestration
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|a ectomycorrhizal fungi
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|a mineral weathering
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|a nitrogen mobilisation
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|a organic matter
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|a podzol horizons
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|a Nitrogen
|2 NLM
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|a N762921K75
|2 NLM
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|a Soil
|2 NLM
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|a Minerals
|2 NLM
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|a Carbon
|2 NLM
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|a 7440-44-0
|2 NLM
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| 700 |
1 |
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|a Fahad, Zaenab
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bolou-Bi, Emile B
|e verfasserin
|4 aut
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| 700 |
1 |
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|a King, Katharine
|e verfasserin
|4 aut
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1 |
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|a Köhler, Stephan J
|e verfasserin
|4 aut
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|a Bishop, Kevin
|e verfasserin
|4 aut
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|a Ekblad, Alf
|e verfasserin
|4 aut
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|a Finlay, Roger D
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 242(2024), 4 vom: 01. Apr., Seite 1545-1560
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:242
|g year:2024
|g number:4
|g day:01
|g month:04
|g pages:1545-1560
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|u http://dx.doi.org/10.1111/nph.19260
|3 Volltext
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