Table 2.
Glycosyl side chain analysis from stems of downregulated PvUAM1 transgenic and non-transgenic (NT-ST1) switchgrass lines.
| Line | 2-α-Ara (% signal) | LSD | T-α-Araf (% signal) | LSD | α-4-GlcA (% signal) | LSD |
|---|---|---|---|---|---|---|
| 270-1 | 3.91 ± 0.22 | A | 9.27 ± 0.10 | ABCD | 4.27 ± 0.18 | A |
| 270-2 | 3.68 ± 0.20 | BC | 9.70 ± 0.37 | D | 4.46 ± 0.65 | ABC |
| 270-4 | 3.11 ± 0.09 | CD | 11.4 ± 0.12 | BCD | 3.32 ± 0.33 | BCD |
| 270-5 | 2.60 ± 0.10 | CD | 12.1 ± 0.16 | A | 2.24 ± 0.38 | CD |
| 270-6 | 2.35 ± 0.05 | CD | 11.5 ± 0.16 | AB | 1.97 ± 0.29 | CD |
| 270-7 | 2.59 ± 0.05 | CD | 10.6 ± 0.17 | AB | 2.14 ± 0.28 | CD |
| NT-ST1 | 2.54 ± 0.12 | D | 11.2 ± 0.18 | CD | 2.47 ± 0.28 | D |
2-α-Ara refers to the internal chains of arabinose present. T-α-Araf refers to the terminal residues of arabinose present. α-4-GlcA refers to the glucuronic acid present. Values represent relative % of 1H-signal of the total xylan signal. Error bars represent standard error of the mean of three stem internode replicates. Values that share the same letter are not significantly different as calculated by LSD (p ≤ 0.05).