स्टॉमाता इसके अंग्रेजी अर्थ का उदाहरण

The leaf and stem epidermis is covered with pores called stomata (sing.

The stomata complex regulates the exchange of gases and water vapor between the outside air and the interior of the leaf.

Typically, the stomata are more numerous over the abaxial (lower) epidermis of the leaf than the (adaxial) upper epidermis.

An exception is floating leaves where most or all stomata are on the upper surface.

Vertical leaves, such as those of many grasses, often have roughly equal numbers of stomata on both surfaces.

the side around the stomatal pore, the swollen guard cells become curved and pull the stomata open.

At night, the sugar is used up and water leaves the guard cells, so they become flaccid and the stomatal pore closes.

The plant epidermis consists of three main cell types: pavement cells, guard cells and their subsidiary cells that surround the stomata and trichomes, otherwise known as leaf hairs.

As a consequence of these important functions, differentiation of cells to form stomata is also subject to environmental conditions to a much greater degree than other epidermal cell types.

Stomata begin as stomatal meristemoids.

Spacing is thought to be essentially random in dicots though mutants do show it is under some form of genetic control, but it is more controlled in monocots, where stomata arise from specific asymmetric divisions of protoderm cells.

Because stomata play such an important role in the plants' survival, collecting information on their differentiation is difficult by the traditional means of genetic manipulation, as stomatal mutants tend to be unable to survive.

TMM is thought to control the timing of stomatal initiation specification and FLP is thought to be involved in preventing the further division of the guard cells once they are formed.