What is guttation responsibility?

Guttation is the loss of water in the form of liquid through hydathodes. The most important force responsible for guttation is root pressure, which develops in conditions of high humidity, because when roots absorb mineral salts water follows passively but transpiration loss of water is less.

What do you understand by the term of Hydathode?

Definition of hydathode : a specialized pore on the leaves of higher plants that functions in the exudation of water.

What is the function of leaf spines?

Spines are also modified leaves. In cacti, spines are wholly transformed leaves that protect the plant from herbivores, radiate heat from the stem during the day, and collect and drip condensed water vapour during the cooler night.

What is the function of stomata?

The stomata control gas exchange in the leaf. Each stoma can be open or closed, depending on how turgid its guard cells are. Diffusion of carbon dioxide into the leaf for photosynthesis and oxygen and water vapour out of the leaf, is greatest when the stomata are open during the day.

What is the name of the tissue responsible for guttation?

So, the correct answer is ‘Root pressure’.

Which organ is involved in guttation?

Guttation is the excretion of drops of xylem sap on the tips or edges of leaves of some vascular plants, such as grasses. In the absence of light, plant loose excess water in the form of liquid through hydathodes because most plants have their stomata closed at night.

Is Hydathode present in all plants?

Hydathodes occur in the leaves of submerged aquatic plants such as Ranunculus fluitans as well as herbaceous plants of drier habitats such as Campanula rotundifolia. Hydathodes are commonly seen in water lettuce, water hyacinth, rose, balsam, and many other species.

What is the function of green stem in desert plants?

In desert plants like the cactus, the leaves are modified into spines to minimize the loss of water by transpiration. In such plants, the green stem is capable of performing photosynthesis. Generally, if there is a green part in a plant it can perform photosynthesis.

What is the function of leaf spines in Opuntia?

They have small thorns instead of leaves due to transpiration in which sun rays absorb water from the leaves . So the spines in oputina helps avoiding transpiration because cactus grow in desert and if there will be leaves cactus will lose its water.

What are 2 Functions of stomata?

The two main functions of stomata are to allow for the uptake of carbon dioxide and to limit the loss of water due to evaporation. In many plants, stomata remain open during the day and closed at night. Stomata are open during the day because this is when photosynthesis typically occurs.

What are stomata give two functions of stomata short answer?

Stomata are tiny openings in the leaf that are usually found on the lower surface of the leaf. Transpiration and exchange of gases (carbon dioxide and oxygen) are the main functions of stomata.

What is the function of hydathodes?

Hydathodes are specialized pores (openings) particularly present on the leaf margins, which exudes or secretes drops of water. The exudation of water as drops from the tip or margin of the leaves is called guttation. The process of guttation is facilitated by the hydathodes.

What is hydhydathodes in plants?

Hydathodes are the minor openings at the leaf tip which is uncovered by the cuticle (Fig. 4), this allows guttation of surplus water through the leaves of herbaceous crop plants, such as mustard, grasses, and Saxifragaceae (saxifrage family; Huang, 1986).

Which process of Guttation is facilitated by the hydathodes?

The process of guttation is facilitated by the hydathodes. Ø They are also called as Water Stomata because they structurally resemble stomata and they facilitate guttation (secretion of droplets of water from the pores of plants). Ø Hydathodes are commonly found in Angiosperms, especially in grasses.

What is the difference between active and passive hydathodes?

Some hydathode is actively involved in exuding the fluids while some others passively exude the fluids. Hydathodes are the pores present at the leaf margin where vascular supply ends. These are commonly found in angiosperms and are used to release water droplets by the process called guttation.