Abstract
The first mitotic division of the haploid microspore in the pathway of pollen development is a striking example of an asymmetric division that leads to different fates in the daughter cells. Recently, new insight into microspore polarity and cell-fate determination in pollen has been obtained in Arabidopsis by applying cell-fate markers in conjunction with a mutational approach. These studies suggest that development into a vegetative cell is the default programme, but that this is repressed in the generative cell as a result of division asymmetry. Gametophytic mutants that affect cell division, division asymmetry and cell fate have high-lighted the importance of asymmetrically localized factors in microspore polarity and cell-fate determination in pollen.
| Original language | English |
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| Pages (from-to) | 305-310 |
| Number of pages | 6 |
| Journal | Trends in Plant Science |
| Volume | 3 |
| Issue number | 8 |
| DOIs | |
| State | Published - 1 Aug 1998 |