Sökning: id:"swepub:oai:lup.lub.lu.se:9af2a97d-19ba-4214-9697-a6e59259f54c" > Decomposition of so...
Fältnamn | Indikatorer | Metadata |
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000 | 04937naa a2200409 4500 | |
001 | oai:lup.lub.lu.se:9af2a97d-19ba-4214-9697-a6e59259f54c | |
003 | SwePub | |
008 | 220920s2022 | |||||||||||000 ||eng| | |
024 | 7 | a https://lup.lub.lu.se/record/9af2a97d-19ba-4214-9697-a6e59259f54c2 URI |
024 | 7 | a https://doi.org/10.3389/ffgc.2022.9344092 DOI |
040 | a (SwePub)lu | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a for2 swepub-publicationtype |
072 | 7 | a ref2 swepub-contenttype |
100 | 1 | a Tunlid, Andersu Lund University,Lunds universitet,MEMEG,Biologiska institutionen,Naturvetenskapliga fakulteten,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Mikrobiologisk ekologi,Forskargrupper vid Lunds universitet,Department of Biology,Faculty of Science,Centre for Environmental and Climate Science (CEC),Microbial Ecology,Lund University Research Groups4 aut0 (Swepub:lu)mbek-atu |
245 | 1 0 | a Decomposition of soil organic matter by ectomycorrhizal fungi : Mechanisms and consequences for organic nitrogen uptake and soil carbon stabilization |
264 | c 2022-07-22 | |
264 | 1 | b Frontiers Media SA,c 2022 |
520 | a A major fraction of nitrogen (N) in boreal forest soils is found in organic forms associated with soil organic matter (SOM) and mineral particles. The capacity of ectomycorrhizal (ECM) fungal symbionts to access this N is debated, considering that these fungi have lost many of the genes for decomposing organic matter that were present in their saprotrophic ancestors. To gain a molecular-level understanding of the N-mining processes in ECM fungi, we developed an experimental approach where the processes of decomposition were studied in parallel with the changes in the structure and properties of the organic matter. We showed that ECM fungi have significant capacities to assimilate organic N associated with SOM and mineral surfaces. The decomposition mechanisms differ between species, reflecting the lignocellulose decomposition mechanisms found in their saprotrophic ancestors. During N-mining, the ECM fungi processed the SOM to a material with increased adsorptive properties to iron oxide mineral particles. Two pathways contributed to these changes: Extracellular modifications of the SOM and secretion of mineral surface reactive metabolites. Some of these metabolites have iron(III)-reducing activities and can participate in extracellular Fenton reactions and redox reactions at iron oxide mineral surfaces. We conclude that the traditional framework for understanding organic N acquisition by ECM fungi from recalcitrant SOM must be extended to a framework that includes how those decomposition activities affect the stabilization and reactivity of mineral-associated SOM. The activity through these complex networks of reactions is decisive for the overall effect of ECM fungal decomposition on nutrients and C-cycling in forest ecosystems. | |
650 | 7 | a NATURVETENSKAPx Geovetenskap och miljövetenskapx Geokemi0 (SwePub)105062 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Geochemistry0 (SwePub)105062 hsv//eng |
653 | a decomposition | |
653 | a ectomycorrhizal fungi | |
653 | a iron oxide minerals | |
653 | a metabolites | |
653 | a nitrogen acquisition | |
653 | a soil C stabilization | |
700 | 1 | a Floudas, Dimitriosu Lund University,Lunds universitet,MEMEG,Biologiska institutionen,Naturvetenskapliga fakulteten,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Mikrobiologisk ekologi,Forskargrupper vid Lunds universitet,Department of Biology,Faculty of Science,Centre for Environmental and Climate Science (CEC),Microbial Ecology,Lund University Research Groups4 aut0 (Swepub:lu)biol-dfu |
700 | 1 | a Op De Beeck, Michielu Lund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Centre for Environmental and Climate Science (CEC),Faculty of Science4 aut0 (Swepub:lu)biol-mop |
700 | 1 | a Wang, Taou Institute of Mountain Hazards and Environment Chinese Academy of Sciences4 aut0 (Swepub:lu)biol-tow |
700 | 1 | a Persson, Peru Lund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Centre for Environmental and Climate Science (CEC),Faculty of Science4 aut0 (Swepub:lu)cec-ppn |
710 | 2 | a MEMEGb Biologiska institutionen4 org |
773 | 0 | t Frontiers in Forests and Global Changed : Frontiers Media SAg 5q 5x 2624-893X |
856 | 4 | u http://dx.doi.org/10.3389/ffgc.2022.934409x freey FULLTEXT |
856 | 4 8 | u https://lup.lub.lu.se/record/9af2a97d-19ba-4214-9697-a6e59259f54c |
856 | 4 8 | u https://doi.org/10.3389/ffgc.2022.934409 |
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