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Correlation analysis between relative abundances of significantly discriminant metabolites (VIP > 0.7 and p < 0.05) and antioxidant activity (ABTS scavenging capacity), TPC, and TFC of DAN and DUN leaves. Each square indicates “r” (Pearson’s correlation coefficient values). Red and blue colors represent positive (0 < r < 1) and negative (−1 < r < 0) correlations, respectively.
