kartawik_data.xlsx

Fungal communities are intricate components of the natural world, comprising numerous species that interact simultaneously. The complexity of these communities increases proportionally with the emergence of additional taxa and the formation of mutual interactions among species. The composition of fungal communities changes over time and space, driven by the influence of abiotic factors and the pool of potential colonizing species available in the substrate. With shifting climatic conditions and the growing occurrence of extreme weather events, the frequency and magnitude of damages caused by strong winds are on the rise. The objectives of this study are: (I) qualitative and quantitative analysis of fungal community composition inhabiting pine wood (a) one year, three years, and five years after damage; (b) undamaged and damaged pine wood (due to windbreaks and windthrows) resulting from a hurricane (II) analysis of changes in the proportion of trophic groups (pathogens, saprotrophs, endotrophs, mycorrhizal fungi) inhabiting damaged pine wood<br>(a) one year, three years, and five years after damage; (b) undamaged and damaged pine wood (due to windbreaks and windthrows) resulting from a hurricane. An additional objective was to analyze changes in the content of biogenic elements (nitrogen, carbon, hydrogen) in hurricane-damaged pine wood at the initial stages of decomposition. The research area was delineated in a forest stand in the Gniezno Forest District. In each research plot, three trees were selected, varying in the manner of wind-induced damage: undamaged trees, trees without crowns (windbreaks), and trees lying above ground with their root systems intact (windthrows). In November of the years 2018, 2020, and 2022, wood samples were collected in the form of drillings. Commu nity analysis was conducted based on the ITS1 region using Illumina sequencing. Fungal communities at the initial stages of pine wood decomposition exhibited high quantitative and qualitative richness. The most abundant species included <i>Armillaria</i> spp<i>, Coniophora arida, Diplodia </i>spp, <i>Postia </i>spp., <i>Trichoderma </i>spp, <i>Xylodon flaviporus </i>and <i>Xylodon </i>spp. Although the presence of various trophic groups was demonstrated, saprotrophs dominated the fungal communities. Each year, there was an increasing representation of <i>Basidiomycota</i> taxa responsible for brown wood rot.