Table 1 Analysis of lignin monolignols and interunit linkage in OXPdWND3A transgenic plants. Structural information of lignin was obtained by 2D 1H-13C HSQC NMR analysis. The contents of monolignols (S and G), PB (p-hydroxybenzoate), and lignin interunit linkage [β-aryl ether (β-O-4), phenylcoumaran (β-5), and resinol (β-β)] were calculated as a fraction of total lignin subunits (S + G). Two biological replicates of stem tissues were used for the analysis. The number in parenthesis displayed standard deviation
| Â | WV94 Control | OXPdWND3A-1 | OXPdWND3A-2 |
|---|---|---|---|
Lignin subunits | |||
 S | 56 (0.81) | 61 (3.89)* | 67 (1.12)* |
 G | 44 (0.81) | 39 (2.89)* | 33 (1.12)* |
 S/G | 1.29 | 1.54 | 2.07 |
 PB | 7 (0.45) | 10 (0.21) | 2 (0.59) |
Lignin interunit linkages | |||
 β-O-4 | 54 (2.19) | 58 (3.74) | 59 (4.39) |
 β-5 | 2 (0.78) | 4 (1.39) | 2 (1.45) |
 β-β | 2 (0.83) | 4 (0.46)* | 6 (0.5)* |