Fig. 4: Multidimensional structure of community and metabolite composition in incubation and field samples.

Non-metric dimensional scaling (NMDS) ordination, using Bray-Curtis dissimilarities, comparing (A) the eukaryotic (18S) composition and (B) the prokaryotic (16S) composition of each sample. C Procrustes analysis, where points represent individual samples, line connections between points represent eukaryotic and prokaryotic community composition from the same sample, and longer lines indicate greater within-sample dissimilarity between eukaryotic and prokaryotic community structure. D NMDS ordination, using Euclidean distance, comparing the metabolite composition of each sample. Metabolite concentrations (of 134 metabolites) are scaled to mole fraction of carbon. A version of this figure excluding metabolites that were added as part of f/2 nutrients (Cyanocobalamin and Vitamin B1) is available in Fig. S14). Colors indicate sample type. Full data for 18S, 16S, and metabolites are provided in Tables S5, S6, and S11, respectively.