Table I.
Effects on stomatal development of ethylene treatment between days 3 and 5
| Hypocotyl Zone (as Defined in Fig. 1B) | Processes Active during Ethylene Treatment | Consequence of Transient Ethylene Exposure | Figure Reference |
|---|---|---|---|
| Apical zone (1) | Meristemoid and stomatal progenitor cell commitment | Protuberances | 2, A and B |
| Subsidiary cells | |||
| Increased stomatogenesis | |||
| Upper midzone (2) | Guard mother cell commitment | Subsidiary cells | 4C |
| Stomatal twins | 4, E and F | ||
| Aberrant stomatal division planes | 4E | ||
| Lower midzone (3) | Ordinary cell expansion | Radial swelling | 1B |
| Guard mother cell division | Aberrant stomatal division planes | 4, G–J | |
| Basal zone (4) | Guard cell differentiation | Guard cell redivision | 4K |