Fig. 9From: The microbiota characterizing huge carbonatic moonmilk structures and its correlation with preserved organic matterPrincipal components analysis (PCA) plots showing (A) the clustering of the Grotta Nera samples based on the molecular composition and (B) the correlation between the organic families (detected through analytical pyrolysis) and the most abundant ASVs present in each niche (considering the order taxonomy level)Back to article page