Table 3.

Cell wall composition of cal mutant mature tissues.

Genotype	Mature tissue	Arabinose	Galactose	Glucose	Xylose	Cellulose	Lignin
B73	leaf	15.1 ± 1.1	6.6 ± 0.9	15.4 ± 2.2	63.0 ± 2.8	299.0 ± 66.5	184.8 ± 10.8
cal1	leaf	16.1 ± 1.0	7.1 ± 0.5	16.2 ± 1.3	60.6 ± 0.7	280.7 ± 18.8	179.8 ± 9.6
cal2	leaf	17.7 ± 0.8**	7.1 ± 0.4	12.6 ± 1.2*	62.5 ± 1.5	239.4 ± 26.6	190.4 ± 7.1
bm1	leaf	16.2 ± 1.5	6.9 ± 0.4	14.2 ± 1.5	62.7 ± 0.6	297.2 ± 53.7	179.9 ± 26.3
bm3	leaf	16.5 ± 0.7*	7.1 ± 0.3	12.9 ± 0.9*	63.6 ± 0.8	293.0 ± 24.0	184.3 ± 5.8
A619	leaf	16.8 ± 0.5	6.6 ± 0.7	10.7 ± 1.3	65.9 ± 2.4	251.4 ± 31.4	170.0 ± 31.1
cal3	leaf	17.8 ± 1.5	6.9 ± 0.6	10.3 ± 0.8	64.9 ± 1.4	261.8 ± 36.9	179.5 ± 25.0
B73	stem	11.6 ± 1.0	3.6 ± 0.5	8.7 ± 0.6	76.1 ± 1.4	319.1 ± 22.0	179.8 ± 4.7
cal1	stem	12.5 ± 0.7	3.6 ± 0.5	10.6 ± 1.4*	73.2 ± 2.0*	319.1 ± 35.3	187.0 ± 8.5
cal2	stem	17.6 ± 1.6**	4.0 ± 0.4	7.9 ± 0.9	70.5 ± 1.3**	298.9 ± 14.2	168.4 ± 11.0
bm1	stem	12.0 ± 0.8	3.6 ± 0.3	8.6 ± 0.8	75.9 ± 0.4	344.9 ± 23.0	200.2 ± 6.0**
bm3	stem	12.2 ± 1.1	3.4 ± 0.4	7.1 ± 0.7**	77.3 ± 2.1	354.3 ± 32.2	159.6 ± 12.5**
A619	stem	16.5 ± 0.5	4.4 ± 0.3	7.6 ± 0.8	71.6 ± 1.4	337.2 ± 33.4	151.5 ± 19.8
cal3	stem	20.0 ± 0.3**	4.9 ± 0.1	5.8 ± 0.2**	69.3 ± 0.5*	280.8 ± 49.9	174.9 ± 6.3

Monosaccharide composition values are shown as the mean and average of the relative content (in %) of each monosaccharide (n ≥ 3). 100% corresponds to the sum of Ara, Gal, Glc and Xyl. Crystalline cellulose and lignin content are shown in μg mg-1 AIR. cal1, cal2, bm1, and bm3 are in B73 genetic background. cal3 are in A619 genetic background. Asterisk(s) indicate levels of statistical significance between each mutant and corresponding wild-type plant determined by two-tailed unpaired Student t-test at p-value < 0.01 (**), p-value < 0.05 (*).