Fig. 1: Heatmap of fungal volatile organic compounds (fVOC) emission profiles from the examined 43 fungal species.

The dendrogram shows the hierarchical clustering based on Spearman correlations (ρ < 0.05). Compounds are grouped to 17 clusters (letters A-to-Q). The letters refer to the groupings in the Supplementary Tables S2 and S3⁵¹. The emission rates (ncps cm⁻² s⁻¹ and pmol cm⁻² h⁻¹) based on PTR–MS and GC–MS data, respectively, are color-coded: red indicates high and blue indicates low emission.