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Table 2 Monosaccharide composition of the different sequential extracts of M. sativa stems

From: Does long-term cadmium exposure influence the composition of pectic polysaccharides in the cell wall of Medicago sativa stems?

Average mol percentage (mol %)
Fraction Fuc Ara Rha Gal Glc Xyl Man GalA GlcA
H2O Ctr 0.45 ± 2.74−2 36.63 ± 1.46 1.96 ± 1.16−1* 22.49 ± 4.22− 1 12.30 ± 7.37− 1 4.07 ± 3.01− 1* 7.75 ± 7.06− 1 13.70 ± 1.2 0.67 ± 9.04− 2
Cd 0.50 ± 1.87− 2 34.56 ± 8.14− 1 2.53 ± 1.69− 1* 23.55 ± 4.86− 1 10.54 ± 3.06− 1 5.21 ± 3.21− 1* 7.99 ± 3.95− 1 14.61 ± 7.07− 1 0.51 ± 6.16− 2
EDTA Ctr 0.81 ± 2.13− 2 52.81 ± 1.48* 3.65 ± 1.34− 1* 15.94 ± 2.66− 1 1.96 ± 7.97− 2* 4.77 ± 2.91− 1* 4.16 ± 1.38− 1 15.37 ± 1.18* 0.52 ± 6.4− 2
Cd 0.77 ± 2.47− 2 44.67 ± 6.82− 1* 4.26 ± 2.2− 1* 15.77 ± 3.23− 1 1.68 ± 4.82− 2* 6.61 ± 1.02–1* 4.27 ± 1.69− 1 21.30 ± 6.99− 1* 0.68 ± 1.71− 1
1 M KOH Ctr 0.23 ± 2.29− 2 4.21 ± 4.25− 1 1.18 ± 1.18− 1 2.32 ± 2.64− 1 2.37 ± 2.95− 1 73.11 ± 9.95− 1 1.10 ± 8.91− 2 15.29 ± 2.5− 1 0.20 ± 9.69− 3
Cd 0.25 ± 3.2−2 4.28 ± 5.36− 1 1.49 ± 2.05− 1 2.63 ± 3.54− 1 2.05 ± 2.61− 1 71.36 ± 1.67 1.69 ± 4.05− 1 16.04 ± 8.22− 1 0.21 ± 3.74− 2
4 M KOH Ctr 1.76 ± 7.38− 1 6.23 ± 2.63 0.44 ± 1.53–1* 5.60 ± 5.12− 1* 10.74 ± 6.21 53.50 ± 2.56 11.67 ± 3.92 9.41 ± 1.93 0.65 ± 5.6− 1
Cd 1.65 ± 3.41−2 6.21 ± 1.25− 1 0.70 ± 7.72− 2* 6.30 ± 5.68− 2* 15.01 ± 7.45− 1 49.81 ± 2.11 11.78 ± 2.09 7.72 ± 5.24−1 0.82 ± 2.15− 1
CWP Ctr 0.54 ± 1.58−2 11.93 ± 3.18−1* 1.65 ± 5.74− 2* 13.63 ± 2.97− 1 20.50 ± 3.78− 1 36.52 ± 7.1− 1 3.62 ± 1.06− 1* 11.17 ± 2.17− 1 0.43 ± 2.8− 2
Cd 0.60 ± 4.26− 2 17.00 ± 1.76* 2.14 ± 1.18− 1* 14.54 ± 1.44 20.72 ± 2.08 30.58 ± 4.8 2.84 ± 1.86− 1* 11.22 ± 5.11− 1 0.37 ± 5.98− 2
  1. SEM standard error of the mean, Ctr control, Fuc fucose, Ara arabinose, Rha rhamnose, Gal galactose, Glc glucose, Xyl xylose, Man mannose, GalA galacturonic acid, GlcA glucuronic acid; CWP cell wall pellet
  2. Values are given as an average from five biological replicates ± SEM. Significant changes were determined with a t-test (p-value ≤0.05) and are indicated with an asterisk