From: Polysaccharide compositions of collenchyma cell walls from celery (Apium graveolens L.) petioles
Monosaccharides | Deduced glycosyl linkagea | Fractions | Â | ||||||
---|---|---|---|---|---|---|---|---|---|
HEPES | Cell wall | CDTA | Na2CO3 | 1Â M KOH | 4Â M KOH | Residue | Deduced polymer | ||
Rhamnose | terminalp | 1.06 (1.13) | 0.09 | 0.31 | 0.69 | 0.27 | 0.21 | 0.04 | RG-II/AG-II |
2p | 1.68 (1.19) | 1.14 | 2.48 | 5.90 | 2.28 | 1.91 | 0.38 | RG-I backbone | |
2,4p | 0.90 (0.82) | 0.36 | 1.04 | 1.96 | 0.83 | 0.71 | 0.06 | RG-I backbone | |
Fucose | terminalp | 0.29 (0.82) | 0.33 | 0.22 | 0.40 | 1.38 | 3.63 | - | RG-II/XGs |
Arabinose | terminalf | 6.47 (7.28) | 0.94 | 2.14 | 4.16 | 1.85 | 1.21 | 0.35 | RG-I/RG-II/AG-II/HXs |
terminalp | 0.45 (0.42) | - | - | - | - | - | - | AG-II | |
3f | 0.40 (0.66) | - | - | - | - | - | - | RG-I | |
5f | 4.51 (4.46) | 1.53 | 5.05 | 6.64 | 2.69 | 1.72 | 0.44 | RG-I | |
3,5f | 0.91 (1.01) | 0.60 | 1.80 | 3.06 | 1.26 | 0.78 | - | RG-I | |
Xylose | terminalp | 2.37 (3.62) | 2.26 | 0.46 | 0.51 | 5.91 | 12.4 | 0.25 | HXs/XGs/other |
2p | - | 0.81 | - | - | 3.92 | 4.54 | 0.05 | XGs | |
4p | 34.7 (31.9) | 2.81 | 0.47 | 1.12 | 26.5 | 3.73 | 0.17 | HXs | |
2,4p | 5.36 (5.04) | 0.39 | - | - | 4.04 | 0.62 | - | HXs | |
2,3,4p | 0.84 (0.66) | 0.31 | - | - | 0.31 | 0.32 | - | HXs | |
Mannose | 4p | 1.24 (0.97) | 1.24 | 0.42 | 0.86 | 2.90 | 3.88 | 0.67 | HMs |
4,6p | - (−) | 0.78 | - | - | 1.33 | 1.86 | 0.06 | HMs | |
Galactose | terminalp | 1.69 (1.84) | 0.88 | 0.76 | 1.99 | 3.02 | 4.93 | 0.36 | RG-I/RG-II/AG-II/XGs/HMs |
2p | 0.28 (0.94) | 0.50 | - | - | 2.71 | 5.26 | 0.06 | XGs/HMs | |
3p | 0.57 (0.81) | - | - | - | - | - | - | AG-II | |
4p | 1.14 (1.19) | 1.39 | 1.74 | 3.35 | 1.59 | 1.77 | 0.83 | RG-I | |
6p | 3.19 (2.58) | 0.47 | 1.18 | 2.35 | 1.00 | 1.01 | 0.35 | AG-II | |
2,4p | - (0.30) | - | 0.82 | - | 0.21 | 0.32 | - | RG-II | |
3,6p | 5.46 (5.81) | - | - | - | - | - | - | AG-II | |
3,4,6p | 0.40 (0.55) | - | - | - | - | - | - | AG-II | |
Glucose | terminalp | 1.37 (1.14) | 0.43 | 0.29 | 0.73 | - | 0.50 | 0.30 | Other |
4p | 4.63 (4.45) | 54.1 | 1.89 | 3.89 | 9.23 | 18.2 | 85.5 | XGs/HMs/Cellulose/other | |
2,4p | - (−) | 0.77 | - | - | - | - | 0.13 | Other | |
3,4p | - (−) | 0.99 | - | - | - | - | 0.33 | Other | |
4,6p | 1.76 (3.91) | 4.16 | - | - | 7.25 | 19.8 | 0.94 | XGs/HMs/other | |
3,4,6p | - (−) | - | - | - | - | - | 0.10 | Other | |
2,3,4,6p | - (−) | - | - | - | - | 0.45 | 0.15 | Other | |
Galacturonic | terminalp | - (−) | 0.12 | 1.30 | 1.21 | - | - | 0.05 | HG/RG-II |
acid | 4p | 9.21 (7.44) | 19.1 | 70.79 | 54.42 | 12.1 | 8.29 | 6.22 | HG/RG-I backbone |
2,4p | - (−) | - | 5.04 | 0.85 | 0.13 | 0.10 | - | RG-II | |
3,4p | 0.75 (0.91) | 1.45 | 1.34 | 5.04 | 1.21 | 0.82 | 0.50 | RG-II | |
4,6p | 0.15 (0.40) | 0.39 | 0.44 | 0.86 | 0.30 | - | - | HG | |
Glucuronic | terminalp | 7.10 (6.69) | 0.28 | - | - | 5.31 | 0.44 | - | AG-II/HXs/Other |
acid | 4p | 1.14 (1.06) | 1.23 | - | - | 0.49 | 0.63 | 1.74 | AG-II/HXs/other |