Mineral type versus environmental filters: What shapes the composition and functions of fungal communities in the mineralosphere of forest soils?

• Minerals were buried in forests for five years to study mineral-fungal associations. • Mineral type affected saprotrophic but not ectomycorrhizal fungi. • Fungal colonization was driven by organic matter sorption. • Fungal trophic guild shifts were linked to enzymatic nutrient acquisition. • Environmental filters shaped fungal communities more than mineral type.