Table I. Monosaccharide linkage analysis of neutral sugars in cell walls of Lepidium endosperm and embryo tissues and tobacco endosperm.
Figures are molar percentages and are means of three assessments. f, Furanose; p, pyranose.
| Monosaccharide | Lepidium |
Tobacco |
|
|---|---|---|---|
| Endosperm | Embryo | Endosperm | |
| Ara | |||
| t-Ara (f) | 15.4 | 14.9 | 2.5 |
| 1,2-Ara (f) | 3.1 | 0.3 | 0.2 |
| 1,3-Ara (f) | 0.8 | 0.3 | 0.0 |
| 1,5-Ara (f) | 18.8 | 10.6 | 3.8 |
| 1,3,5-Ara (f) | 7.2 | 16.0 | 4.1 |
| 1,2,5-Ara (f) | 2.9 | 0.6 | 0.0 |
| Total | 48.3 | 42.8 | 10.6 |
| Fuc | |||
| t-Fuc (f) | 0.7 | 1.4 | 0.0 |
| Total | 0.7 | 1.4 | 0.0 |
| Xyl | |||
| t-Xyl (p) | 4.0 | 5.9 | 0.0 |
| 1,3-Xyl (p) | 0.0 | 0.2 | 0.0 |
| 1,2-Xyl (p) | 1.1 | 1.5 | 0.0 |
| 1,4-Xyl (p) | 1.7 | 1.1 | 0.0 |
| 1,2,4-Xyl (p) | 1.6 | 0.2 | 0.0 |
| 1,2,3,4-Xyl (p) | 2.5 | 0.5 | 0.0 |
| Total | 10.9 | 9.5 | 0.0 |
| Rha | |||
| 1,2-Rha (p) | 0.4 | 0.4 | 0.2 |
| 1,2,4-Rha (p) | 0.8 | 1.2 | 0.0 |
| Total | 1.2 | 1.6 | 0.2 |
| Man | |||
| t-Man (p) | 0.1 | 0.5 | 0.3 |
| 1,4-Man (p) | 0.7 | 1.4 | 60.2 |
| 1,2,4-Man (p) | 0.0 | 0.0 | 0.4 |
| 1,4,6-Man (p) | 1.2 | 1.0 | 3.7 |
| 1,3,6-Man (p) | 0.7 | 0.4 | 0.0 |
| 1,2,3,6-Man (p) | 0.0 | 0.2 | 0.0 |
| Total | 2.8 | 3.5 | 64.6 |
| Glc | |||
| t-Glc (p) | 0.3 | 0.2 | 0.5 |
| 1,3-Glc (p) | 0.1 | 0.2 | 0.0 |
| 1,4-Glc (p) | 20.6 | 23.9 | 19.2 |
| 1,3,4-Glc (p) | 0.2 | 0.2 | 0.0 |
| 1,2,4-Glc (p) | 0.4 | 0.4 | 0.0 |
| 1,4,6-Glc (p) | 2.9 | 8.4 | 0.7 |
| 1,3,4,6-Glc (p) | 0.2 | 0.2 | 0.0 |
| Total | 24.7 | 33.5 | 20.4 |
| Gal | |||
| t-Gal (p) | 3.4 | 2.3 | 3.3 |
| 1,3-Gal (p) | 2.5 | 0.7 | 0.0 |
| 1,2-Gal (p) | 2.0 | 2.7 | 0.0 |
| 1,6-Gal (p) | 0.4 | 0.3 | 0.0 |
| 1,3,6-Gal (p) | 3.2 | 1.7 | 0.8 |
| Total | 11.5 | 7.7 | 4.1 |