Table 1.
Types of pollen development as observed in live-cell imaging experiments during the initial 2 weeks of culture under conditions supportive for pollen embryogenesis.
| Developmental type | No. of pollen | % of total pollen | |
|---|---|---|---|
| SYMMETRIC MITOSIS I | |||
| Embryogenic | I | 38 | 54.3 |
| Bi-nucleate, starchy, collapsed | II | 2 | 2.9 |
| Bi-nucleate, starchy, survived | III | 3 | 4.3 |
| ASYMMETRIC MITOSIS I | |||
| Embryogenic | IV | 3 | 4.3 |
| Division of generative cell, no starch, survived | V | 2 | 2.9 |
| Bi-cellular, starchy, collapsed | VI | 5 | 7.1 |
| FAILED MITOSIS I | |||
| Micronuclei formation | VII | 1 | 1.4 |
| Pollen expansion | VIII | 2 | 2.8 |
| No development | IX | 14 | 20.0 |