Frustule Formation
As the diatom prepares to separate it undergoes several processes in order to start the production of either a new hypotheca or new epitheca. Once each cell is completely separate they then have similar protection and the ability to continue frustule production.
A brief and extremely simplified version can be explained as:
- The newly formed nucleus and the pre-existing nucleus each move to the side of the diatom where the new hypotheca will be formed.
- A vesicle known as the silica deposition vesicle forms near the plasma membrane.
- This forms the center of the pattern and silica deposition can continue outward from that point, till the frustule is produced.
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