Stomata open due to accumulation of

Options

A. `K^(+)`
B. `Na^(+)`
C. `Mg^(+)`
D. `Ca^(2+)`

Answer

A

Explanation

According to active `K^(+)` theory of Levitt, opening of stomata occurs due to influx of `K^(+)` into the guard cells. The source of `K^(+)` are nearby subsidiary and epidermal cells.