Table V.
The effect of reduced NADME activity on the starch content of developing potato tubers
| Line | NADME Activity | Starch Content | Fisher's P Value (t Test, Starch Content, versus Wild Type) |
|---|---|---|---|
| % | |||
| Wild type (n = 23) | 100 ± 2 | 100 ± 2 | – |
| 35S-ME6 (n = 4) | 94 ± 9 | 93 ± 9 | NS |
| PAT-ME1 (n = 13) | 96 ± 6 | 101 ± 6 | NS |
| PAT-ME8 (n = 11) | 89 ± 6 | 105 ± 6 | NS |
| 35S-ME1 (n = 3) | 87 ± 2 | 100 ± 2 | NS |
| PAT-ME5 (n = 11) | 85 ± 3 | 103 ± 3 | NS |
| PAT-ME9 (n = 20) | 77 ± 4 | 112 ± 4 | <0.01 |
| PAT-ME10 (n = 12) | 71 ± 4 | 109 ± 4 | <0.05 |
| 35S-ME10 (n = 15) | 61 ± 4 | 110 ± 4 | <0.05 |
| 35S-ME7 (n = 15) | 57 ± 4 | 110 ± 4 | <0.05 |
| 35S-ME11 (n = 16) | 51 ± 3 | 120 ± 3 | <0.001 |
For each harvest, NADME activity and tuber starch content were expressed as a percentage of the mean value for the wild-type tubers in that harvest. The normalized value for each tuber from all of the harvests was then combined to give an overall mean (±se of the mean) for each line. A Student's t test was used to compare the starch content of each line (averaged across all six harvests) with that of the wild type; the Fisher's P values are shown. NS, Not significant (P > 0.05).