Untargeted metabolomics reveal rhizosphere metabolites mechanisms on continuous ramie cropping.

In GC-MS analysis, the differential metabolites mainly included organic oxygen compounds (5–23), organic acids and their derivatives (2–20), lipids and lipid-like molecules (8–10), organic heterocyclic compounds (2–7), phenylpropanoids and their derivatives (1–5), among others ( Figure 3 ), while the CK group combined with obstacle group analysis revealed that 19 metabolites were quantified ( Figure 2L ); 12 metabolites showed an increasing trend and 7 metabolites showed a decreasing trend (VIP>1, Table S3 ). 3.4 Metabolic pathways of differential abundant metabolites The above significantly altered metabolites are involved in several important metabolic pathways.

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