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<b>Abstract</b>— <p>In a stationary field experiment, an assessment of the diversity and taxonomic composition was carried out using metabarcoding, and the ecological profiles of fungal communities of soddy-podzolic soil (Albic Retisol) were predicted depending on the method of its treatment (moldboard plowing to 20–22 cm and surface tillage to 14–16 cm) and the depth of soil sampling (0–10, 10–20, and 20–40 cm). The mycobiomes of the studied soil samples were similar to one another at the level of taxa of the highest rank. Amplicon sequence variants (ASVs) were identified in Ascomycota (59.4% on average) and Basidiomycota (32.9%), Mucoromycota (3.9%), Chytridiomycota (1%), Monoblepharomycota (0.2%), Mortierellomycota (0.6%), and Olpidiomycota (0.1%) orders. At lower taxonomic levels, mycobiomes differed in phylogenetic composition. The total number of phylotypes under surface tillage (315 ASVs) was inferior to traditional moldboard plowing (467 ASVs). The taxonomic structure of the fungal community was characterized by a greater homogeneity in separate layers and a higher relative abundance of phytopathogens in the case of surface tillage than in the case of moldboard plowing. Most of the identified fungal taxa were classified into the “saprotrophs” and “pathotrophs–saprotrophs” categories (guilds). It is concluded that the nature of tillage leads to a change in the taxonomic composition and ecological profile of mycobiota. Knowledge about the diversity of soil micromycetes and the structure of their communities can be applied in practice to ensure greater sustainability of agroecosystems and protect the soil from degradation.</p>

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Effect of Soil Tillage on the Structure of the Fungal Community

  • 期刊论文

  • 发表日期：

    2026年6月22日

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  • I. G. Shirokikh,
  • E. N. Noskova,
  • N. A. Bokov

摘要

Abstract—

In a stationary field experiment, an assessment of the diversity and taxonomic composition was carried out using metabarcoding, and the ecological profiles of fungal communities of soddy-podzolic soil (Albic Retisol) were predicted depending on the method of its treatment (moldboard plowing to 20–22 cm and surface tillage to 14–16 cm) and the depth of soil sampling (0–10, 10–20, and 20–40 cm). The mycobiomes of the studied soil samples were similar to one another at the level of taxa of the highest rank. Amplicon sequence variants (ASVs) were identified in Ascomycota (59.4% on average) and Basidiomycota (32.9%), Mucoromycota (3.9%), Chytridiomycota (1%), Monoblepharomycota (0.2%), Mortierellomycota (0.6%), and Olpidiomycota (0.1%) orders. At lower taxonomic levels, mycobiomes differed in phylogenetic composition. The total number of phylotypes under surface tillage (315 ASVs) was inferior to traditional moldboard plowing (467 ASVs). The taxonomic structure of the fungal community was characterized by a greater homogeneity in separate layers and a higher relative abundance of phytopathogens in the case of surface tillage than in the case of moldboard plowing. Most of the identified fungal taxa were classified into the “saprotrophs” and “pathotrophs–saprotrophs” categories (guilds). It is concluded that the nature of tillage leads to a change in the taxonomic composition and ecological profile of mycobiota. Knowledge about the diversity of soil micromycetes and the structure of their communities can be applied in practice to ensure greater sustainability of agroecosystems and protect the soil from degradation.