Question

Which of the following acts as wound hormones in plants?

• A. Ethylene
• B. Cytokinins
• C. Abscisic acid
• D. Dextrin

Answer 1

The Correct Option is A, B, C

The question asks which hormones act as wound hormones in plants. Wound hormones are substances that respond to injury in plants and help in their repair. Let's analyze each given option:

1. Ethylene:
   Ethylene is a gaseous plant hormone known for its role in the ripening of fruits. Besides that, it also plays a critical role in the response to mechanical stress and is involved in wound healing. It helps coordinate the repair process by inducing rapid synthesis of related enzymes and compounds.
2. Cytokinins:
   Cytokinins are essential for cell division and shoot initiation. They are also involved in responses to plant injury, particularly by promoting cell division at wound sites, facilitating the formation of new cells to replace damaged ones.
3. Abscisic Acid (ABA):
   ABA is primarily known for its role in stress responses, especially drought and salinity. However, it also has a role in the plant's response to wounding. ABA can mediate the signal transduction pathways that lead to wound healing and the production of defensive compounds.
4. Dextrin:
   Dextrins are a group of carbohydrates, specifically polysaccharides, and they do not function as hormones in plants. They are not involved in the wound healing process in plants.

Based on the above explanations, the correct answer is: Ethylene, Cytokinins, and Abscisic Acid are the hormones that act as wound hormones in plants as they play a significant role in the repair and response to plant wounds.