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Ericoid shrubs shape fungal communities and suppress organic matter decomposition in boreal forests

hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
hal.structure.identifierDepartment of Forest Ecology and Management
dc.contributor.authorFANIN, Nicolas
hal.structure.identifierSwedish University of Agricultural Sciences = Sveriges lantbruksuniversitet [SLU]
dc.contributor.authorCLEMMENSEN, Karina
hal.structure.identifierSwedish University of Agricultural Sciences = Sveriges lantbruksuniversitet [SLU]
dc.contributor.authorLINDAHL, Björn
hal.structure.identifierCSIRO Agriculture and Food [CSIRO]
dc.contributor.authorFARRELL, Mark
hal.structure.identifierSwedish University of Agricultural Sciences = Sveriges lantbruksuniversitet [SLU]
dc.contributor.authorNILSSON, Marie‐charlotte
hal.structure.identifierDepartment of Forest Ecology and Management
dc.contributor.authorGUNDALE, Michael
hal.structure.identifierDepartment of Forest Ecology and Management
dc.contributor.authorKARDOL, Paul
hal.structure.identifierDepartment of Forest Ecology and Management
hal.structure.identifierNanyang Technological University [Singapour]
dc.contributor.authorWARDLE, David
dc.date.accessioned2024-04-08T11:46:48Z
dc.date.available2024-04-08T11:46:48Z
dc.date.issued2022-07-21
dc.identifier.issn0028-646X
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195248
dc.description.abstractEnMycorrhizal fungi associated with boreal trees and ericaceous shrubs are central actors in organic matter (OM) accumulation through their belowground carbon allocation, their potential capacity to mine organic matter for nitrogen (N) and their ability to suppress saprotrophs. Yet, interactions between co-occurring ectomycorrhizal fungi (EMF), ericoid mycorrhizal fungi (ERI), and saprotrophs are poorly understood. We used a long-term (19 yr) plant functional group manipulation experiment with removals of tree roots, ericaceous shrubs and mosses and analysed the responses of different fungal guilds (assessed by metabarcoding) and their interactions in relation to OM quality (assessed by mid-infrared spectroscopy and nuclear magnetic resonance) and decomposition (litter mesh-bags) across a 5000-yr post-fire boreal forest chronosequence. We found that the removal of ericaceous shrubs and associated ERI changed the composition of EMF communities, with larger effects occurring at earlier stages of the chronosequence. Removal of shrubs was associated with enhanced N availability, litter decomposition and enrichment of the recalcitrant OM fraction. We conclude that increasing abundance of slow-growing ericaceous shrubs and the associated fungi contributes to increasing nutrient limitation, impaired decomposition and progressive OM accumulation in boreal forests, particularly towards later successional stages. These results are indicative of the contrasting roles of EMF and ERI in regulating belowground OM storage.
dc.language.isoen
dc.publisherWiley
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enectomycorrhizal fungi
dc.subject.enericoid mycorrhizal fungi
dc.subject.enforest understorey
dc.subject.enfungal interactions
dc.subject.ennutrient cycling
dc.subject.enplant-soil (belowground) interactions
dc.subject.ensaprotrophs
dc.subject.ensoil organic matter
dc.title.enEricoid shrubs shape fungal communities and suppress organic matter decomposition in boreal forests
dc.typeArticle de revue
dc.identifier.doi10.1111/nph.18353
dc.subject.halSciences de l'environnement
bordeaux.journalNew Phytologist
bordeaux.page1-14
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-03745377
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03745377v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=New%20Phytologist&rft.date=2022-07-21&rft.spage=1-14&rft.epage=1-14&rft.eissn=0028-646X&rft.issn=0028-646X&rft.au=FANIN,%20Nicolas&CLEMMENSEN,%20Karina&LINDAHL,%20Bj%C3%B6rn&FARRELL,%20Mark&NILSSON,%20Marie%E2%80%90charlotte&rft.genre=article


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