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Which of the following get accumulated i...

Which of the following get accumulated in the vacuoles of guard cells during stomatal opening ?

A

Water, calcuium and magnesium

B

Starch, potassium and chloride ions

C

Malate, sodium and potassiumm ions

D

Malate, potassium and chloride ions

Text Solution

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The correct Answer is:
D
During opening of stomata uptake of `K^(+)` takes place. The uptake of `K^(+)` is balanced by `Cl^(-)` uptake. The malic and dissociate into hydrogen and malate ion. The synthesis of malic acid in guard cells accompanies the influx of potassium ions.
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