Jasmonates

Definition

Jasmonates are plant hormones that regulate various aspects of growth, development, and defense responses. They play a crucial role in the plant's ability to respond to environmental stress and herbivory.

5 Must Know Facts For Your Next Test

1. Jasmonates are synthesized from fatty acids in the chloroplast membrane.
2. They are involved in the regulation of gene expression associated with plant defense mechanisms.
3. Jasmonates can inhibit root growth while promoting seed germination and fruit ripening.
4. Upon herbivore attack, jasmonates stimulate the production of secondary metabolites that deter predators.
5. They interact with other plant hormones like ethylene and salicylic acid to coordinate complex defense responses.

Review Questions

• What is the primary role of jasmonates in plants?
• How do jasmonates contribute to a plant's defense against herbivores?
• In what ways do jasmonates interact with other plant hormones?

Related terms

Salicylic Acid: A plant hormone involved in systemic acquired resistance and local defense responses against pathogens.

Ethylene:

A gaseous plant hormone that regulates fruit ripening, leaf abscission, and stress responses.

Abscisic Acid (ABA): A plant hormone that regulates stomatal closure, seed dormancy, and response to environmental stress.