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Difference Between Transpiration and Guttation

Last updated date: 28th Feb 2024
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Introduction on Transpiration and Guttation

Transpiration and guttation are two distinct processes related to water release in plants. Transpiration refers to the evaporation of water from the plant's leaves and stems through tiny openings called stomata. It is essential for nutrient transport, plant cooling, and maintaining cell turgidity. On the other hand, guttation involves the excretion of liquid water through specialised structures known as hydathodes, typically found on leaf margins and helps us to explain Transpiration and Guttation and many more information.

What is Transpiration and Guttation?

Transpiration:  Transpiration is the process by which plants lose water in the form of vapor through their leaves and stems. It occurs through tiny openings called stomata, which regulate the exchange of gases and water vapor. Transpiration plays a crucial role in plant water uptake, nutrient transport, and cooling.

Guttation: Guttation, on the other hand, is the process where plants excrete liquid water through specialized structures called hydathodes. This typically occurs when the soil moisture is high and results in visible water droplets on the tips or edges of leaves. Guttation is more prominent during periods of low transpiration, such as at night or early morning.

Characteristics of Transpiration and Guttation


Driving force: Transpiration is driven by the process of evaporation, where water vapor diffuses out of the stomata into the surrounding air.

Water loss: Transpiration accounts for a significant loss of water in plants, with estimates ranging from 90% to 97% of the water absorbed by the roots being lost through transpiration.


Mechanism: Guttation is driven by root pressure, where excess water is pushed up through the xylem and exuded through hydathodes.

Water form: Unlike transpiration, which releases water vapor, guttation results in the exudation of liquid water droplets visible on plant surfaces.

Difference Between Transpiration and Guttation

The table presented below highlights the main differences between transpiration and guttation.







Passive process

Active process



Occurs during the day

Occurs at night or early morning


Water Form

Water vapor

Liquid water droplets



Through stomata

Through hydathodes


Driving Force


Root pressure



Nutrient transport, cooling, turgidity maintenance

Elimination of excess water and potential toxins


Transpiration and guttation are two processes by which plants release water. Transpiration is a passive process occurring during the day, where water evaporates from stomata as vapor. This can Explain transpiration and guttation as it aids in nutrient transport, cooling, and turgidity maintenance. Guttation is an active process that occurs at night or early morning, exuding liquid water droplets through hydathodes. It helps eliminate excess water and potential toxins. 

Transpiration is influenced by factors like temperature and humidity, while guttation is influenced by soil moisture and root pressure. As this helps to to know the Transpiration and guttation difference and What is transpiration and guttation.

FAQs on Difference Between Transpiration and Guttation

1. Is there a significant difference in the amount of water loss between transpiration and guttation?

Yes, there is a significant difference in the amount of water loss between transpiration and guttation. Transpiration accounts for a substantial loss of water in plants, with estimates ranging from 90% to 97% of the water absorbed by the roots. In contrast, guttation results in a relatively limited water loss compared to transpiration. Guttation primarily exudes liquid water droplets, whereas transpiration releases water in the form of vapor through stomata.

2. Are there any observable signs or visual cues for transpiration and guttation?

Transpiration does not have direct observable signs or visual cues, as it is the evaporation of water vapor from the plant's stomata. However, guttation can be visually observed. It often manifests as tiny droplets of liquid water on the tips or edges of leaves, resembling dew. These droplets can be more noticeable during periods of high humidity or in the early morning when guttation is most active. Such visible water droplets on plant surfaces can be indicative of guttation occurring in the plant.

3. Do transpiration and guttation occur in all types of plants?

Transpiration is a common process that occurs in most types of plants, including both herbaceous and woody plants. However, guttation is more commonly observed in herbaceous plants, such as grasses and some flowering plants, and is less prominent in woody plants. The presence and extent of guttation can vary among plant species, depending on factors such as their ability to produce hydathodes and the availability of moisture in the soil.