Question
Name the stress hormone in plants. Describe its physiological effects.
✓
Answer
Abscisic acid increases the tolerance of plants to various kinds of stress. So, it is also called a stress hormone. It is found in the chloroplast of plants.
- During water stress and drought conditions, Abscisic acid causes stomatal closure.
- ABA induces bud dormancy towards the approach of winter in trees like birch.
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