In daylight, plants using CAM close their guard cells and discharge malate that is subsequently transported into chloroplasts.
12.
These guard cells are in turn surrounded by subsidiary cells which provide a supporting role for the guard cells.
13.
These guard cells are in turn surrounded by subsidiary cells which provide a supporting role for the guard cells.
14.
However, this is now thought to result from the loss of the wall separating paired guard cells during fossilisation.
15.
Finally, the guard cells of the latter average 49 micrometers, slightly larger than the 46 micrometers of the former.
16.
This electrical depolarization of guard cells leads to activation of the outward potassium channels and the release of potassium through these channels.
17.
The term is also used collectively to refer to an entire stomatal complex, both the pore itself and its accompanying guard cells.
18.
At night, the sugar is used up and water leaves the guard cells, so they become flaccid and the stomatal pore closes.
19.
Stomata are pores in the plant epidermis that are surrounded by two guard cells, which control the opening and closing of the aperture.
20.
Ion uptake into guard cells causes stomatal opening : The opening of gas exchange pores requires the uptake of potassium ions into guard cells.
