Table 1. Monosaccharide Composition of an Enriched GIPC Fraction Isolated from Arabidopsis Wild-Type and gmt1 Callus.

Monosaccharide (µg/mg DW)	Ara	GlcN	Gal	Glc	Man	GlcA
Wild-type Col-0	0.17 ± 0.04	0.04 ± 0.02	0.13 ± 0.06	2.07 ± 0.57	1.53 ± 0.29	0.24 ± 0.05
gmt1-1	0.00 ± 0.00	0.00 ± 0.00	0.05 ± 0.06	1.09 ± 0.60	0.43 ± 0.12	0.32 ± 0.18
gmt1-3	0.00 ± 0.00	0.00 ± 0.00	0.04 ± 0.00	1.67 ± 0.99	0.42 ± 0.20	0.45 ± 0.11

An enriched GIPC fraction from gmt1 and wild-type callus was hydrolyzed with TFA. The monosaccharides released were quantified by HPAEC-PAD; n = 4 to 6, ±sd. Bold indicates a significant difference from the wild type (Student’s t test, P < 0.01). DW, dry weight.