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. 2016 Oct 27;7:1612. doi: 10.3389/fpls.2016.01612

Figure 3.

Figure 3

Side-chain (δCH 50–90/2.5–6.0) and aromatic/unsaturated (δCH 100–155/6.0–8.0) regions in the 2D HSQC NMR spectra of the whole cell-walls from the different parts of Q. suber (A,D) cork, (B,E) phloem and (C,F) xylem. The signal assignments are presented in Table 3 and the main lignin structures identified are depicted in Figure 5.