Fig. 5

A comparison of lignin quantity and quality in switchgrass stem and BL-induced suspension culture. a Lignin quantity and composition as determined by thioacidolysis yield (upper panel), and S/G ratio (lower panel). b HSQC-NMR analysis of the aromatic region. Stem lignin was from plants at the E4–I2 and E4–I4 developmental stages for thioacidolysis analysis, and a mixture of E4–I2 and E4–I4 stages for NMR analysis. Cell cultures were 7 days post-treatment with BL