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. 2015 Dec 16;15:291. doi: 10.1186/s12870-015-0672-5

Fig. 6.

Fig. 6

Standardized abundance levels of selected metabolites in DS2-bolon date samples ordered by PC1 scores. a Pheophorbide A, a marker of chlorophyll degradation. b 3-deoxyoctulosonate, a structural component of rhamnogalacturonan II species of pectin and a marker of cell wall hydrolysis. Samples with missing values were assigned a minimum value indicated by a red dashed line