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UPLC/Q-TOF MS-Based Metabolomics and qRT-PCR in Enzyme Gene Screening with Key Role in Triterpenoid Saponin Biosynthesis of Polygala tenuifolia

Figure 2

Extracted ion chromatogram (A) and MS/MS spectra (B) of Onjisaponin TG.

Glc = β-D-glucopyranosyl; Fuc = β-D-fucopyranosyl; Xyl = β-D-xylopyranosyl; HMG = D 3-hydroxy-3-methyl-5-pentanoic acid ester.

Figure 2

doi: https://doi.org/10.1371/journal.pone.0105765.g002