Plant Hormones

Plant hormones are chemicals produced in many parts of the plant that promote and regulate functions in other parts of the plant. They act as chemical messengers, telling different parts of the plant to do different things. Plant hormones regulate processes such as growth, repair, protection from pathogens, ripening of fruit, and senescence.

Plant hormones are integral to the success of plants. They control and regulate various functions such as growth, repair, and protection. Hormone production in plants is also important in horticulture and agriculture, as humans can manipulate hormone levels to trigger desired effects.

Plant hormones promote and inhibit growth in various parts of the plant, such as roots, stems, leaves, buds, and seeds. Different types of hormones have different effects on growth. For example, auxins promote cell elongation, while cytokinins promote cell division. Overall, plant hormones play a crucial role in determining the growth and development of plants.

The five types of hormones in plants are auxins, cytokinins, gibberellins (GAs), ethylene, and abscisic acid (ABA).

The two categories of plant growth hormones are growth promoters and growth inhibitors.

The primary growth promotion hormone in plants is auxin.

Ethylene and abscisic acid.

Ethylene is responsible for aging in plants, causing fruit to ripen and mature leaves and flowers to age, fade, and drop.

Abscisic acid is responsible for the dormancy of different organs within the plant and causes leaves to drop.

Salicylic acid is used as a primary chemical in painkillers, such as aspirin, due to its anti-inflammatory properties.