Fig. 2
From: Polysaccharide compositions of collenchyma cell walls from celery (Apium graveolens L.) petioles
CP/MAS (a) and SPE/MAS (b) solid-state NMR of collenchyma cell walls from different petioles segments. GA-galacturonan; Gal-galactose; Glc-glucose in xyloglucan; HG-homogalacturonan; Rha-rhamnose; i-interior cellulose; s-surface cellulose. A1, arabinan C-1; G1, galactan C-1; GA1, galacturonan C-1; t-, = terminal linked; 5-, = 5-linked; 3,5-, = 3, 5-linked; 5−/3,5-, =5- and 3,5-linked