Table 2.

Monosaccharide compositional analysis of wall fractions derived from the culms of wild-type and bc14 plants (μg mg⁻¹ AIR)

Residue	Sample	Rhamnose	Fucose	Arabinose	Xylose	Mannose	Galactose	Glucose	Mass
Ammonium oxalate	WT	0.1 ± 0.0	ND	0.3 ± 0.0	0.2 ± 0.0	0.1 ± 0.0	0.3 ± 0.0	2.0 ± 0.1*	35.0 ± 2.0
	bc14	0.1 ± 0.0	ND	0.3 ± 0.0	0.4 ± 0.0	0.1 ± 0.0	0.3 ± 0.0	0.7 ± 0.0*	37.4 ± 1.4
	pBC14F	0.1 ± 0.0	ND	0.3 ± 0.0	0.2 ± 0.0	0.1 ± 0.0	0.3 ± 0.0	3.0 ± 0.2*	34.2 ± 3.1
1 N KOH soluble	WT	0.4 ± 0.0	0.2 ± 0.0	16.2 ± 0.6*	120.7 ± 3.9*	0.2 ± 0.0	4.6 ± 0.2	17.0 ± 0.6*	289.8 ± 53.6
	bc14	0.5 ± 0.0	0.2 ± 0.0	30.6 ± 1.0*	171.3 ± 5.5*	0.5 ± 0.0	7.5 ± 0.3	6.9 ± 0.3*	361.3 ± 7.6
	pBC14F	0.4 ± 0.0	0.2 ± 0.0	17.6 ± 0.3*	124.4 ± 1.9*	0.3 ± 0.0	5.0 ± 0.1	36.7 ± 0.6*	273.2 ± 57.2
4 N KOH soluble	WT	0.2 ± 0.0	0.1 ± 0.0	4.5 ± 0.5*	34.5 ± 3.5*	0.1 ± 0.0	2.2 ± 0.2	9.3 ± 1.1*	64.0 ± 4.4
	bc14	0.2 ± 0.0	ND	3.8 ± 0.3*	20.0 ± 1.6*	0.1 ± 0.0	1.7 ± 0.1	5.0 ± 0.3*	50.4 ± 3.1
	pBC14F	0.2 ± 0.0	0.1 ± 0.0	3.5 ± 0.3*	23.0 ± 1.9	0.1 ± 0.0	1.9 ± 0.2	11.4 ± 1.0*	58.0 ± 4.0
4 N KOH insoluble	WT	ND	ND	0.4 ± 0.0	1.9 ± 0.1	ND	0.2 ± 0.0	9.9 ± 0.5*	ND
	bc14	0.1 ± 0.0	ND	0.7 ± 0.0	2.1 ± 0.1	0.1 ± 0.0	0.4 ± 0.0	7.7 ± 0.2*	ND
	pBC14F	ND	ND	0.4 ± 0.0	1.8 ± 0.1	0.0 ± 0.0	0.3 ± 0.0	10.2 ± 0.3*	ND

ND, not detected. The amounts of monosaccharides are determined by GC-MS analysis of alditol acetate derivatives.

*Significantly different (t test at P < 0.05) compared with WT (n = 4) ± SD.