stomate, any of the microscopic openings or pores in the epidermis of leaves and young stems. Stomata are generally more numerous on the underside of leaves. They provide for the exchange of gases between the outside air and the branched system of …

In botany, a stoma (pl.: stomata, from Greek στόμα, "mouth"), also called a stomate (pl.: stomates), is a pore found in the epidermis of leaves, stems, and other organs, that controls the rate of gas exchange between the internal air spaces of the leaf and the atmosphere.

Stomata must open to allow the gas exchange of carbon dioxide and oxygen for efficient photosynthesis (see Photorespiration), and light thus typically triggers stomatal opening. When stomata are open, however, water vapor is lost to the external environment, increasing the rate of …

The meaning of STOMATAL is of, relating to, or constituting plant stomata. How to use stomatal in a sentence.

2023年2月3日 · Stomata (singular stoma) are tiny openings or pores found in the epidermis of leaves and young stems that helps in gas exchange. Pair of specialized bean-shaped cells called guard cells are found to surround each stoma. Just like animals breathe, plants do so with the help of stomata. Under the microscope, they appear dense or dark.

The epidermal surface of a leaf has several tiny pores called stomata which are microscopic and are surrounded by two guard cells which control their opening and closing. Cell wall of the guard cells adjacent to the stomatal pore is thicker and more inelastic than the wall adjacent to the surrounding epidermal cells.

2025年1月18日 · Stomatal dynamics are integral to plant physiology, influencing photosynthesis and transpiration. These microscopic pores on leaf surfaces facilitate gas exchange, balancing carbon dioxide uptake with water loss. Understanding stomatal function is important for improving agricultural productivity and addressing climate change.