Priority Colonization of Endophytic Fungal Strains Drives Litter Decomposition and Saprotroph Assembly via Functional Trait Selection in Karst Oak Forests DOI Creative Commons
Dongmei Yang, Zaihua He,

Yonghui Lin

et al.

Microorganisms, Journal Year: 2025, Volume and Issue: 13(5), P. 1066 - 1066

Published: May 3, 2025

Litter decomposition dynamics are largely governed by microbial interactions. While the involvement of endophytic fungi in early-stage and succession is well established, their species-specific contributions to decomposer community assembly remain insufficiently understood. This study investigated effects single-strain colonization using dominant species (Tubakia dryina, Tubakia dryinoides, Guignardia sp.) rare (Neofusicoccum parvum, Penicillium citrinum) on Quercus acutissima leaf through a controlled field experiment karst ecosystem. Endophytes accelerated rates across treatments but paradoxically reduced transient CO2 emissions, linked intensified carbon phosphorus limitations late stages. Contrary expectations, efficiency was fungal traits rather than abundance, with outperforming taxa. induced significant restructuring, reducing Ascomycota while enriching lignin-degrading Basidiomycota, minimally affected bacterial composition. Co-occurrence networks revealed endophyte-driven fragmentation connectivity, only two keystone hubs (Trechispora sp. Russula carmesina) identified compared natural communities. Endophytic improved assembly, mediated an increase Basidiomycota suppression pathogenic Leotiomycetes lineages. Our findings demonstrate that endophytes hierarchically regulate communities phylogenetically conserved interactions, prioritizing functional trait selection over competitive dominance, thereby stabilizing under nutrient constraints. mechanistic framework advances predictions litter decay forest ecosystems undergoing perturbations.

Language: Английский

Priority Colonization of Endophytic Fungal Strains Drives Litter Decomposition and Saprotroph Assembly via Functional Trait Selection in Karst Oak Forests DOI Creative Commons
Dongmei Yang, Zaihua He,

Yonghui Lin

et al.

Microorganisms, Journal Year: 2025, Volume and Issue: 13(5), P. 1066 - 1066

Published: May 3, 2025

Litter decomposition dynamics are largely governed by microbial interactions. While the involvement of endophytic fungi in early-stage and succession is well established, their species-specific contributions to decomposer community assembly remain insufficiently understood. This study investigated effects single-strain colonization using dominant species (Tubakia dryina, Tubakia dryinoides, Guignardia sp.) rare (Neofusicoccum parvum, Penicillium citrinum) on Quercus acutissima leaf through a controlled field experiment karst ecosystem. Endophytes accelerated rates across treatments but paradoxically reduced transient CO2 emissions, linked intensified carbon phosphorus limitations late stages. Contrary expectations, efficiency was fungal traits rather than abundance, with outperforming taxa. induced significant restructuring, reducing Ascomycota while enriching lignin-degrading Basidiomycota, minimally affected bacterial composition. Co-occurrence networks revealed endophyte-driven fragmentation connectivity, only two keystone hubs (Trechispora sp. Russula carmesina) identified compared natural communities. Endophytic improved assembly, mediated an increase Basidiomycota suppression pathogenic Leotiomycetes lineages. Our findings demonstrate that endophytes hierarchically regulate communities phylogenetically conserved interactions, prioritizing functional trait selection over competitive dominance, thereby stabilizing under nutrient constraints. mechanistic framework advances predictions litter decay forest ecosystems undergoing perturbations.

Language: Английский

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