Table 1.
Root areas of wild-type (‘Columbia’), miz1-1 mutant and MIZ1OE transgenic plants grown in control and hydrostimulated chambers for 30 d
| Control (cm2) |
Hydrostimulated (cm2) |
|||||
|---|---|---|---|---|---|---|
| Left side | Right side | n | Dry side | Moist side | n | |
| Columbia | 10·5 ± 0·9 | 9·7 ± 0·7 | 12 | 8·7 ± 0·5 | 13·2 ± 0·9*** | 20 |
| miz1-1 | 11·4 ± 1·1 | 9·8 ± 0·6 | 14 | 11·1 ± 0·7 | 10·1 ± 0·8 | 20 |
| MIZ1OE | 12·7 ± 1·4 | 11·8 ± 1·4 | 14 | 10·1 ± 1·3 | 21·2 ± 1·9**** | 20 |
Data are the mean root area per plant ± s.e. No statistically significant differences between the left and right sides of the control chambers were observed for all plants tested. In hydrostimulated chambers, ‘Columbia’ and MIZ1OE plants grew more roots in the moist side of the chamber, but miz1-1 did not show such asymmetrical root growth. The experiments were repeated three times. Statistical analyses were performed using Student's t-test. Asterisks represent highly significant values (***P < 0·001, ****P < 0·0001).