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Fig. 3 | Biotechnology for Biofuels and Bioproducts

Fig. 3

From: Overexpression of PtoMYB115 improves lignocellulose recalcitrance to enhance biomass digestibility and bioethanol yield by specifically regulating lignin biosynthesis in transgenic poplar

Fig. 3

2D HSQC NMR spectral analysis of lignin structure in the PtoMYB115 transgenic lines and WT. a Lignin aromatic region is shown for PtoMYB115-KO-L5, WT, and PtoMYB115-OE-L9. Correlations from the various aromatic ring unit types are well dispersed and can be categorized as the core lignin units (S syringyl, G guaiacyl, H p-hydroxyphenyl). b The lignin side chain region is shown for PtoMYB115-KO-L5, WT, and PtoMYB115-OE-L9. The major inter-unit structural units are β-ether (β-O-4, a), phenylcoumaran (β-5, b), and resinol (β–β, c), color-coded by their indicated structures

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