Table II.
Mean root skewing in the presence or absence of propyzamide
Angles of root skewing were measured for seedlings grown on 1.5% agar plates tilted backward 30°, 9 DAG. Plates contained 0.05% DMSO and either 0 or 3 μm propyzamide, as indicated. Negative values represent slanting to the left of the vertical and positive values to the right of the vertical, as viewed from the bottom of the plate. All results are mean values ± ses, and n = sample size. Statistical significance of differences in mean root-skewing angles between mutant and wild-type seedlings are indicated as two-tailed t-test P values in the third and fifth columns for the 0 and 3 μm propyzamide treatments, respectively. Δ values were obtained by subtracting the mean root-skewing angle on 0 μm propyzamide from the mean angle on 3 μm propyzamide. The P values in the sixth column indicate the statistical significance of the observed differences (two-tailed t-test analyses). PPM, Propyzamide. –, Not determined.
| Skew Angle (°) | P Values: Mutant versus Wild Type | Skew Angle (°) | P Values: Mutant versus Wild Type | Δ (°) | |
|---|---|---|---|---|---|
| 0 μm PPM | 0 μm PPM | 3 μm PPM | 3 μm PPM | ||
| Ws | 21.8 ± 1.1 (n = 31) | 30.1 ± 0.9 (n = 30) | 8.4 (P = 1.8E-07) | ||
| wvd6 | −1.6 ± 0.8 (n = 44) | P = 4.7E-29 | 0.5 ± 0.8 (n = 46) | P = 2.98E-36 | 2.1 (P = 0.065) |
| No-0 | 23.0 ± 1.1 (n = 35) | 33.6 ± 1.5 (n = 34) | 10.6 (P = 4.0E-07) | ||
| rhd3-3 | 3.4 ± 0.7 (n = 43) | P = 1.4E-22 | 2.8 ± 0.9 (n = 39) | P = 1.33E-23 | −0.6 (P = 0.58) |
| Col | 2.9 ± 0.3 (n = 153) | 17.2 ± 0.8 (n = 132) | 14.3 (P = 2.2E-36) | ||
| rhd1-1 | −1.2 ± 1.2 (n = 43) | P = 0.0015 | 9.5 ± 2.2 (n = 35) | P = 0.0023 | 10.7 (P = 8.7E-05) |
| cob-1 | 4.3 ± 0.7 (n = 45) | P = 0.047 | 23.3 ± 1.1 (n = 39) | P = 2.54E-05 | 19.0 (P = 4.1E-22) |
| cob-2 | 7.5 ± 0.7 (n = 45) | P = 6.5E-10 | 21.5 ± 0.9 (n = 42) | P = 0.0005 | 14.0 (P = 2.1E-20) |
| erh2-1 | 2.2 ± 0.8 (n = 41) | P = 0.43 | −0.1 ± 0.8 (n = 39) | P = 5.82E-29 | −2.3 (P = 0.057) |
| erh3-1 | 0.8 ± 1.5 (n = 18) | P = 0.17 | – | – | – |
| eto1-1 | 6.6 ± 1.3 (n = 33) | P = 0.008 | 9.9 ± 0.9 (n = 34) | P = 1.09E-07 | 3.3 (P = 0.041) |
| eto2-1 | 8.4 ± 1.4 (n = 42) | P = 0.0004 | 13.2 ± 0.9 (n = 29) | P = 0.0017 | 4.9 (P = 4.6E-03) |