Why is Abscisic acid also known as stress hormone?

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Why is Abscisic acid also known as stress hormone?

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Salim Ahmed Kawsar · Answer 1 · Feb 05, 2023 15:29:48

Abscisic acid is called stress hormones as it induces various responses in plants against stress conditions.
It increases the tolerance of plants toward various stresses. It induces the closure of the stomata during water stress. It promotes seed dormancy and ensures seed germination during favourable conditions. It helps seeds withstand desiccation. It also helps in inducing dormancy in plants at the end of the growing season and promotes abscission of leaves, fruits, and flowers.

Salim Ahmed Kawsar · Answer 2 · Feb 05, 2023 15:29:48

Abscisic acid helps plants to withstand stress and hence they are also known as stress hormone. For example; ABA closes stomata and thus helps in reducing water loss due to transpiration.

Salim Ahmed Kawsar · Answer 3 · Feb 05, 2023 15:29:48

Abscisic acid is called stress hormone as it induces various responses in plants against stress conditions. It increases the tolerance of plants towards various stresses. It induces the closure of stomata during water stress. It promotes seed dormancy and ensures seed germination during favourable conditions. It helps seeds withstand desiccation. It also helps in inducing dormancy in plants at the end of the growing season and promotes abscission of leaves, fruits and flowers.

Salim Ahmed Kawsar · Answer 4 · Feb 05, 2023 15:29:48

Abscisic acid increases the tolerance of plants to various kinds of stresses. Therefore, it is also called the stress hormone.

Why is Abscisic acid also known as stress hormone?

4 Answers