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- Fanin, NicolasSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management,INRAE (author)
Ericoid shrubs shape fungal communities and suppress organic matter decomposition in boreal forests
- Article/chapterEnglish2022
Publisher, publication year, extent ...
- 2022-07-21
- Wiley,2022
- Wiley: 12 months,2024
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- LIBRIS-ID:oai:slubar.slu.se:118440
- https://res.slu.se/id/publ/118440URI
- https://doi.org/10.1111/nph.18353DOI
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- Language:English
- Summary in:English
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- Mycorrhizal 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.
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- Engelbrecht Clemmensen, KarinaSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Department of Forest Mycology and Plant Pathology(Swepub:slu)50651 (author)
- Lindahl, BjörnSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för mark och miljö,Department of Soil and Environment(Swepub:slu)50956 (author)
- Nilsson Hegethorn, Marie-CharlotteSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management(Swepub:slu)47927 (author)
- Gundale, MichaelSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management(Swepub:slu)50965 (author)
- Kardol, PaulSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management(Swepub:slu)49164 (author)
- Wardle, DavidSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management,Nanyang Technological University(Swepub:slu)49465 (author)
- Sveriges lantbruksuniversitetInstitutionen för skogens ekologi och skötsel (creator_code:org_t)
- Sveriges lantbruksuniversitet
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- In:New Phytologist: Wiley236, s. 684-6970028-646X1469-8137
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