Table I.
Curvature angles of intermittently inverted rhizoids and continuously gravistimulated control cells on ground
Inversion profiles are described by the duration of a single inversion phase and by the total duration of 31 inversion events listed as absolute value and as a percentage of the total experiment duration of 120 min. Control rhizoids were continuously gravistimulated for 120 min at 90°. Values of maximally achieved curvature angles are means ± se. The number of cells measured (n) is shown in parentheses. Differences between mean curvature angles of inverted cells and the corresponding control cells are shown in percent. For a description of the experiment, see Figure 5.
| Experiment No.
|
Inversion Profile
|
Curvature Angle (°)
|
Difference
|
|||
|---|---|---|---|---|---|---|
| Single | Total | Total | Control Cells | Inverted Cells | ||
| s | min | % | % | |||
| 1 | 5 | 2.6 | 2.15 | 37.44 ± 8.94 (45) | 36.23 ± 8.23 (44) | −3.25 |
| 2 | 5 | 2.6 | 2.15 | 38.87 ± 8.78 (69) | 36.14 ± 7.23 (63) | −7.02 |
| 3 | 5 | 2.6 | 2.15 | 42.89 ± 6.02 (61) | 44.81 ± 7.37 (53) | +4.49 |
| 4 | 10 | 5.2 | 4.31 | 61.40 ± 8.63 (40) | 53.40 ± 15.00 (25)a | −13.03 |
| 5 | 10 | 5.2 | 4.31 | 39.31 ± 9.36 (55) | 31.41 ± 8.87 (49)a | −20.10 |
| 6 | 10 | 5.2 | 4.31 | 42.89 ± 6.02 (61) | 35.74 ± 7.99 (57)a | −16.67 |
| 7 | 10 | 5.2 | 4.31 | 49.72 ± 10.68 (46) | 41.97 ± 9.63 (34)a | −15.58 |
| 8 | 22 | 10.3 | 8.61 | 48.38 ± 9.60 (50) | 38.82 ± 11.50 (44)a | −19.76 |
| 9 | 22 | 10.3 | 8.61 | 66.23 ± 4.82 (13) | 55.90 ± 6.30 (21)a | −15.59 |
| 10 | 30 | 15.5 | 12.92 | 59.11 ± 11.37 (104) | 42.21 ± 10.24 (77)a | −28.59 |
Curvature angles of inverted and control cells were significantly different as revealed by Student's t test (P < 0.01).