Stomata Development (IMAGE)
Caption
The gene Speechless drives the division that initiates stomatal development. (Without Speechless, cells become the wax-coated, interlocking pavement cells on the surface of the plant, none of which open or close.) Two or three divisions after Speechless, Mute causes the formation of a guard mother cell. Then Fama causes the guard mother cell to divide into two equal guard cells that, as their name implies, guard the opening of the stomatal pore.
Credit
University of Washington
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Graphic credit required
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