Table 1.
Effects of hypergravity on the morphology of metaxylem elements in the basal region of arabidopsis inflorescence stems
| 1 g |
300 g |
||||
|---|---|---|---|---|---|
| Mean ± s.e. | n | Mean ± s.e. | n | Probability P | |
| Number of xylem elements (per xylem) | 5·17 ± 0·46 | 52 | 8·02 ± 0·70 | 54 | < 0·01 |
| Cross-section area of the elements (µm2) | 90·07 ± 2·39 | 277 | 113·1 ± 3·97 | 416 | < 0·0001 |
| Apparent thickness of the secondary thickenings (µm) | 1·26 ± 0·02 | 277 | 1·56 ± 0·03 | 416 | < 0·001 |
The number of plants analysed was 9–11, which is the sum of the number of plants examined in two separate experiments.