Table I.
Shoot and root FWs and shoot:root ratios in wild-type and Atnrt3.1 mutants
Plants were grown for 4 weeks in 1 mm NH4NO3 and then nitrogen deprived for 1 week. The values are the means of five (wild type) or 12 (Atnrt3.1 mutants) plants ± se. Differences between wild-type and mutant shoot weights and shoot:root ratios were highly significant (P > 0.05, t test).
| Genotype
|
FW
|
Shoot:Root Ratio
|
|
|---|---|---|---|
| Shoot | Root | ||
| g plant−1 | |||
| Wild type | 0.46 ± 0.03 | 0.13 ± 0.02 | 3.5 |
| Atnrt3.1-1 | 0.23 ± 0.02 | 0.17 ± 0.05 | 1.4 |
| Atnrt3.1-2 | 0.15 ± 0.03 | 0.10 ± 0.03 | 1.5 |