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Cell functions - Motility - Stomatal movement - Stomatal Movement - (Commelina communis, Commelinaceae)
Stomatal Movement - (Commelina communis, Commelinaceae)
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| Description |
Here are two stomata in the epidermis pealed from the underside. Gas bubbles, present because the specimen was mounted in water, escape from the slit-like gaps when the stomate open Opening is accelerated by the addition of 0.1 micromolar solution of fusicoccin [1].
Closing is induced by the addition of a 10 micromolar solution of the plant hormone abscisic acid. The pores close due to a decrease in volume of the guard cells, accompanied by a swelling of neighbouring cells. The opening and closing of the pores regulates gas exchange and therefore transpiration [2].
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Sources
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V 2282 K. RASCHKE. Publ.: unpublished. [1] 156 µm; BF; 8 f/min; [2] 121 µm; BF; 8 f/min
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Abbreviations
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Order |
For further films please search the IWF media catalogue for "cell biology".
Order no.:
- title currently not available -
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