Table II.
Incorporation of [14C-Glc][3H-Fru]Suc into various cell wall polysaccharide fractions of poplar stems after 24 h
Nos. in the table show picomoles of sugar incorporated from 1 mm [14C-Glc] (250 dpm pmol-1) and [3H-Fru] (250 dpm pmol-1) Suc per milligram dry wt after 24 h of incorporation. se values were calculated from six samples per line.
| Plant
|
4% (w/v) KOH-Soluble Fraction
|
24% (w/v) KOH-Soluble Fraction (Hemicelluloses)
|
Insoluble Fraction (Cellulose)
|
|||
|---|---|---|---|---|---|---|
| 14C | 3H | 14C | 3H | 14C | 3H | |
| pmol sugar incorporated mg dry wt-1 | ||||||
| wt | 73.8 ± 3.7 | 36.4 ± 5.1 | 45.1 ± 4.4 | 11.1 ± 1.5 | 39.2 ± 2.3 | 40.4 ± 4.8 |
| trg1 | 85.7 ± 4.6 | 30.8 ± 3.1 | 36.6 ± 4.5 | 20.7 ± 1.3 | 38.5 ± 3.6 | 39.7 ± 5.5 |
| trg2 | 86.4 ± 9.1 | 37.7 ± 6.2 | 31.7 ± 5.7 | 30.1 ± 4.4 | 41.3 ± 3.3 | 51.2 ± 4.5 |
| trg3 | 84.1 ± 1.0 | 38.8 ± 4.8 | 89.9 ± 3.4 | 47.5 ± 3.8 | 87.8 ± 5.5 | 84.7 ± 4.5 |
| trg4 | 74.1 ± 1.2 | 45.4 ± 4.6 | 82.3 ± 4.2 | 48.1 ± 3.5 | 82.3 ± 4.7 | 81.1 ± 3.0 |