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Mycorrhizal and saprotrophic fungal guilds compete for the same organic substrates but affect decomposition differently [Functional Ecology]

Keywords : antagonistic interaction, decomposition, ectomycorrhizal fungi, litterbag experiment, meta-barcoding, next generation sequencing, nutrient mobilization, saprotrophic fungi, substrate quality, moulds

par Frédéric Magné - publié le

Communities of litter saprotrophic and root-associated fungi are vertically separated within boreal forest soil profiles. It is unclear whether this depth partitioning is maintained exclusively by substrate-mediated niche partitioning (i.e. distinct fundamental niches), or by competition for space and resources (i.e. distinct realised niches). Improved understanding of the mechanisms driving spatial partitioning of these fungal guilds is critical, as they modulate carbon and nutrient cycling in different ways.(...)

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