Table III.
Lignin contents of extract-free mature plants
| Line | Acetyl Bromide Lignin | Klason Lignin |
|---|---|---|
| % wt | ||
| Wild type | 19.2 | 19.5 ± 0.28 |
| CAD J40 | 18.3 | 18.8 ± 0.29 |
| COMT B10 | 18.3 | 17.3 ± 0.20 |
| ♂B10 × ♀J40 | 19.4 | 19.5 ± 0.13 |
| Wild type | 21.18 ± 0.78 | 19.26 ± 0.07 |
| CO 9 | 20.8 ± 1.31 | nd |
| CO 3 | 23.25 ± 1.48 | nd |
| CO 5 | 17.0 ± 1.71 | 13.8 ± 0.81 |
| COC 6 | 18.63 ± 0.83 | 16.28 ± 0.18 |
| COC 7 | 19.54 ± 0.32 | 17.83 ± 0.36 |
| COC 11 | 20.74 ± 0.95 | nd |
| COC 12 | 19.01 ± 1.23 | nd |
Data are shown for the ♂B10 × ♀J40 cross and parental genotypes (upper part of Table) and for the CAD-COMT (CO)- and CAD-COMT-CCR (COC)-transformed plants (lower part of Table). Lignin contents were determined by two independent methods according to acetyl bromide and Klason procedures carried out on extract-free samples. Data that are significantly different from data of wild-type plants as determined by the Student's t test are indicated by asterisks (*, P < 0.05; **, P < 0.1; n = 3). nd, Not determined. ses reflect the variability between individual plants of each line.