Malate or K+ ion pump hypothesis was proposed by Levitt. According to this theory, the change that takes place in the turgor pressure of the guard cells that open and close the stomata causes the absorption and loss of K+ ions by guard cells
According to this theory, the stomatal opening and closing depends on the generation of a potassium ion gradient. ATP produced in the guard cells during photosynthesis is utilised to pump the potassium ions of the adjacent cells into the guard cells.
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Explanation:
Malate or K+ ion pump hypothesis was proposed by Levitt. According to this theory, the change that takes place in the turgor pressure of the guard cells that open and close the stomata causes the absorption and loss of K+ ions by guard cells
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Answer:
K+ Malate Theory:
According to this theory, the stomatal opening and closing depends on the generation of a potassium ion gradient. ATP produced in the guard cells during photosynthesis is utilised to pump the potassium ions of the adjacent cells into the guard cells.