Jan 3, 2025 · The stem of a tomato plant plays a vital role in providing support to the plant and acting as a conduit for water, nutrients, and sugars. It consists of distinct nodes where leaves, branches, and flowers emerge, and the internodes that connect these nodes contribute to the stem’s overall length.

Tomato plant leaves are typically compound, consisting of multiple leaflets. The outer surface of the leaves contains tiny pores called stomata, which regulate gas exchange, allowing carbon dioxide to enter and oxygen to exit.

All gaseous exchange occurs through the stomata. The leaf epidermis contains many stomata. The stoma's opening, or aperture, is controlled by the two guard cells. The guard cells change …

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.

As moisture is released through leaf stomata in tomato plants, water and nutrients are absorbed into the roots of tomato plants. This process is called transpiration.

Tomato plants grown under elevated CO2 levels often exhibit improved water use efficiency. As CO2 concentration rises, the stomatal openings on the leaves can partially close, reducing water loss through transpiration.

Additionally, leaves regulate water vapor and gas exchange through tiny pores called stomata. Flowers: Tomato plants produce yellow, star-shaped flowers that play a pivotal role in reproduction. These flowers contain both male (stamens) and female (pistils) reproductive organs.

Gas is exchanged with the environment through stomata. These stomata consist of two bean-shaped guard cells, which regulate the gas exchange of the leaf and thus can also control the evaporation rate in the range of two orders of magnitude.

Stomata cover 1-2% of leaf area. It is minute pore present in soft aerial parts of the plant. Algae, fungi and submerged plants do not possess stomata. (a) Stomata are minute pores of eliptical shape, consists of two specialized epidermal cell called guard cells.

Mar 27, 2024 · We aimed to investigate stomatal regulation in leaves and flowers of perennial, indeterminate cultivars of tomatoes subjected to individual and combined heat and drought stress followed by a recovery period, measuring morphological, physiological, and biochemical factors involved in stomatal regulation.