Table 1.
Sugar contents expressed in μmol hexose equivalent/g fresh weight of leaves of wild-type potato plants or plants transformed with the 35S-SST construct
| Plant | Glucose | Fructose | Sucrose | 1-Kestose | DP4 | DP5 |
|---|---|---|---|---|---|---|
| Wild type | 1.64 ± 0.92 | 1.59 ± 1.12 | 3.28 ± 1.02 | — | — | — |
| 35S-SST 6 | 1.11 ± 0.39 | 1.26 ± 0.58 | 4.53 ± 1.95 | 0.21 ± 0.07 | 0.24 ± 0.12 | n.d. |
| 35S-SST 9 | 0.64 ± 0.18 | 0.69 ± 0.35 | 3.47 ± 1.28 | 0.17 ± 0.06 | 0.32 ± 0.09 | 0.16 ± 0.07 |
| 35S-SST 18 | 1.24 ± 0.83 | 1.51 ± 1.24 | 3.51 ± 1.42 | 0.17 ± 0.08 | 0.27 ± 0.12 | 0.13 ± 0.06 |
| 35S-SST 36 | 2.00 ± 1.66 | 2.08 ± 1.41 | 4.94 ± 1.27 | 0.11 ± 0.02 | 0.27 ± 0.07 | 0.16 ± 0.07 |
Leaf discs were homogenized in liquid nitrogen, sugars were extracted in 80% ethanol, and the amounts were quantified by HPAEC. Seven to ten replicates were analyzed per line. n.d., not detectable.