Plant Hormones and Their Functions

Flashcards covering key concepts and definitions related to plant hormones and their roles in growth and stress response.

Indoleacetic acid (IAA)

A type of auxin involved in various plant growth processes.

Auxin influx carrier

Proteins known as AUX1 that are responsible for the import of auxin into cells.

Auxin efflux carriers

Proteins known as PIN that export auxin from cells.

Polar transport

The directional movement of auxin within plant tissues, crucial for growth coordination.

Phototropism

The growth response of plants to light, influenced by auxin distribution.

Cytokinins

Plant hormones that stimulate cell division and are primarily produced in root tips, shoots, and seeds.

Gibberellins

Plant hormones that promote cell division and elongation, produced in apical flower buds, roots, young leaves, and seed embryos.

Ethylene gas

A plant hormone that influences cell expansion, produced during seedling growth, flower development, and fruit ripening.

Abscisic acid (ABA)

A hormone that slows metabolism in response to environmental stress.

Brassinosteroids

Hormones that enhance plant growth and help plants cope with environmental stress.