Fig. 6

Relative quantitative analysis of selected metabolites under aerobic (+) and hypoxic (-) conditions. D. papillatum grown in rich (R) and poor (P) media were compared. The volcano plots of metabolite distribution show upregulated (blue) and downregulated metabolites (pink) compared in different conditions. Log₂-fold change and log₁₀ p-value significance cutoffs for differential expression were 2 and 0.05, respectively. Metabolites discussed in the text are numbered in plots and listed on the right, and others can be found in Additional file 4: Table S2