List and briefly explain plant hormones

1 answer

1. Auxins: Auxins are plant hormones responsible for promoting cell elongation, root growth, and apical dominance. They also play a role in phototropism and gravitropism.

2. Gibberellins: Gibberellins are plant hormones that regulate the growth and development of plants by promoting stem elongation, seed germination, and flowering. They also play a role in breaking seed dormancy.

3. Cytokinins: Cytokinins are plant hormones that promote cell division and growth, delay senescence, and regulate apical dominance. They also play a role in promoting lateral bud growth.

4. Abscisic acid (ABA): Abscisic acid is a plant hormone that regulates seed dormancy, stomatal closure, and stress responses. It helps plants survive in adverse environmental conditions such as drought and salinity.

5. Ethylene: Ethylene is a plant hormone that regulates fruit ripening, senescence, and abscission. It also plays a role in response to biotic and abiotic stresses.

6. Brassinosteroids: Brassinosteroids are plant hormones that promote cell elongation and division, seed germination, and vascular differentiation. They also play a role in stress responses and flowering.