Fig. 1From: Integrated transcriptomics and metabolomics analysis provides insights into aromatic volatiles formation in Cinnamomum cassia bark at different harvesting timesMorphological features and growth indexes of C. cassia bark at different harvesting times. a Bark morphology. b Transverse section of bark at 36 MAP. c Oil cells in secondary phloem parenchyma. d Bark thickness. e Essential oil content. f Cinnamaldehyde content. Oc, oil cell; P, periderm; Sph, secondary phloem; Sx, secondary xylem; Vc, vascular cambiaBack to article page