Table I.
Plant growth parameters and total P content (mg P plant−1) of transgenic and wild-type plants (Nipponbare) from solution culture experiments
Four-week-old seedlings were sampled for the measurements. The value represents the mean ± se of three experiments with 10 plants each.
| Nip | 35S:OsPTF1-1 | 35S:OsPTF1-2 | |
|---|---|---|---|
| 10 mg P/L | |||
| Tiller number | 3.80 ± 0.31 | 3.20 ± 0.14 | 3.60 ± 0.17 |
| Plant height (cm) | 75.67 ± 1.11 | 76.00 ± 0.70 | 75.40 ± 1.26 |
| Root biomass (mg plant−1) | 0.26 ± 0.00 | 0.28 ± 0.02 | 0.27 ± 0.01 |
| Shoot biomass (mg plant−1) | 1.40 ± 0.04 | 1.57 ± 0.09 | 1.46 ± 0.03 |
| Root P content (mg P plant−1) | 1.85 ± 0.08 | 2.07 ± 0.13 | 2.09 ± 0.08 |
| Shoot P content (mg P plant−1) | 10.71 ± 0.21 | 11.38 ± 0.45 | 10.98 ± 0.38 |
| 0.5 mg P/L | |||
| Tiller number | 1.80 ± 0.13 | 2.50 ± 0.16a | 2.80 ± 0.13a |
| Plant height (cm) | 67.11 ± 0.87 | 74.60 ± 1.02a | 73.40 ± 0.95a |
| Root biomass (mg plant−1) | 0.25 ± 0.01 | 0.33 ± 0.02a | 0.34 ± 0.01a |
| Shoot biomass (mg plant−1) | 0.66 ± 0.02 | 0.92 ± 0.03a | 0.88 ± 0.03a |
| Root P content (mg P plant−1) | 0.26 ± 0.01 | 0.35 ± 0.01a | 0.36 ± 0.02a |
| Shoot P content (mg P plant−1) | 0.63 ± 0.03 | 0.89 ± 0.03a | 0.84 ± 0.02a |
a
Most significant (P < 0.01) difference in means between wild-type and transgenic plants.