Table 1 : Contents of low molecular mass compounds in young leaves (leaf number 3) of wild-type potato plants and GGaccumulating transgenic clones (Means ± confidence intervals, α=0.05). Statistical significant differences between transgenic and corresponding wild-type plants are shown in bold face. Samples were taken before the stress and 4 week after treatments with normal watering (control), with salt-enriched watering (salt stress), or with reduced watering (drought stress).
| Plant | µmol/g fresh mass | ||||
| GG | Sucrose | Fructose | Glucose | Sum | |
| Before stress | |||||
| WT | 0 | 2.19±1.26 | 9.06±1.68 | 7.31±1.18 | 18.56 |
| Alba-AF1 | 12.87±2.42 | 1.11±0.73 | 6.36±1.07 | 5.94±1.43 | 26.28 |
| Alba-AF8 | 11.91±2.25 | 0.94±0.50 | 5.66±0.90 | 5.14±1.18 | 23.65 |
| Alba-AF9 | 10.96±2.03 | 1.17±0.81 | 6.18±0.94 | 5.43±1.08 | 23.74 |
| 4 weeks control | |||||
| WT | 0 | 1.39±0.24 | 6.99±1.11 | 5.15±0.70 | 13.53 |
| Alba-AF1 | 0.22±0.20 | 2.97±1.09 | 8.43±2.31 | 6.77±1.25 | 18.39 |
| Alba-AF8 | 0.14±0.13 | 1.60±0.48 | 5.48±1.29 | 4.50±0.75 | 11.72 |
| Alba-AF9 | 0.27±0.21 | 1.89±0.63 | 5.82±1.38 | 4.79±0.93 | 12.77 |
| 4 weeks salt stress | |||||
| WT | 0 | 4.17±1.12 | 1.93±0.52 | 1.98±0.42 | 8.08 |
| Alba-AF1 | 0.07±0.03 | 7.23±1.81 | 2.37±0.56 | 2.57±0.50 | 12.24 |
| Alba-AF8 | 0.03±0.01 | 7.66±1.89 | 2.29±0.64 | 2.17±0.48 | 12.15 |
| Alba-AF9 | 0.08±0.03 | 7.46±1.48 | 2.31±0.50 | 2.34±0.45 | 12.19 |
| 4 weeks drought stress | |||||
| WT | 0 | 2.28±0.73 | 8.80±1.78 | 6.48±1.35 | 17.56 |
| Alba-AF1 | 0.08±0.04 | 3.21±0.29 | 9.97±1.53 | 8.32±0.97 | 21.58 |
| Alba-AF8 | 0.04±0.02 | 3.26±0.90 | 9.99±3.65 | 8.03±3.32 | 21.32 |
| Alba-AF9 | 0.07±0.03 | 2.93±0.55 | 8.05±1.11 | 6.43±0.93 | 17.48 |
| Before stress | |||||
| WT | 0 | 1.23±0.51 | 2.67±0.81 | 2.94±0.83 | 6.84 |
| Alba-rd29A-AF5 | 5.46±0.58 | 0.73±0.28 | 1.51±0.48 | 2.26±0.52 | 9.96 |
| Alba-rd29A-AF9 | 5.24±0.28 | 0.63±0.36 | 1.99±0.64 | 2.69±0.57 | 10.55 |
| Alba-rd29A-AF16 | 4.03±0.24 | 0.54±0.30 | 1.83±0.56 | 2.45±0.41 | 8.85 |
| 4 weeks control | |||||
| WT | 0 | 2.96±0.57 | 1.95±0.35 | 2.18±0.36 | 7.09 |
| Alba-rd29A-AF5 | 4.73±0.74 | 2.21±0.78 | 2.02±0.40 | 2.79±0.36 | 11.75 |
| Alba-rd29A-AF9 | 3.34±0.43 | 2.96±0.64 | 2.16±0.45 | 2.84±0.46 | 11.30 |
| Alba-rd29A-AF16 | 4.03±1.36 | 1.67±0.85 | 4.67±1.37 | 5.71±1.47 | 16.08 |
| 4 weeks salt stress | |||||
| WT | 0 | 1.30±0.71 | 4.88±1.02 | 5.61±0.89 | 11.79 |
| Alba-rd29A-AF5 | 7.52±1.17 | 0.83±0.67 | 3.35±0.44 | 5.45±0.42 | 17.15 |
| Alba-rd29A-AF9 | 7.67±1.45 | 0.39±0.12 | 4.04±0.40 | 5.85±0.93 | 17.95 |
| Alba-rd29A-AF16 | 9.26±1.51 | 0.71±0.43 | 4.99±0.89 | 6.74±0.97 | 21.70 |