Plant hormones, also known as phytohormones, are signal molecules that plants produce in very low concentrations. They control all aspects of plant growth and development, including: Embryogenesis, Organ size regulation, Pathogen defense, Stress tolerance, Reproductive development. The five major groups of plant hormones are: Auxins, Cytokinins, Gibberellins, Ethylene, Abscisic acid. These groups are distinguished by their chemical structures and the response they evoke within the plant. Here are some examples of plant hormones: Auxins These growth hormones are essential for proper... Show more Plant hormones, also known as phytohormones, are signal molecules that plants produce in very low concentrations. They control all aspects of plant growth and development, including: Embryogenesis, Organ size regulation, Pathogen defense, Stress tolerance, Reproductive development. The five major groups of plant hormones are: Auxins, Cytokinins, Gibberellins, Ethylene, Abscisic acid. These groups are distinguished by their chemical structures and the response they evoke within the plant. Here are some examples of plant hormones: Auxins These growth hormones are essential for proper plant growth and cell elongation. They also regulate phototropism, geotropism, and hydrotropism in plants. Brassinosteroids These hormones are involved in regulating the division, elongation, and differentiation of numerous cell types throughout the entire plant life cycle. Salicylic acid This plant hormone plays an important role in inducing plant defense against a variety of biotic and abiotic stresses. Abscisic acid This growth inhibitor is synthesized within the stem, leaves, fruits, and seeds of the plant. It is also known as the stress hormone as it helps by increasing the plant-tolerance to various types of stress. Gibberellins This hormone regulates a wide range of processes involved in plant growth, organ development, and environmental responses. These include seed germination, stem elongation, leaf expansion, transition to flowering, and the development of flowers, fruits, and seeds. Show less
Plant hormones, also known as phytohormones, are signal molecules that plants produce in very low concentrations. They control all aspects of plant growth and development, including: Embryogenesis, Organ size regulation, Pathogen defense, Stress tolerance, Reproductive development. The five major groups of plant hormones are: Auxins, Cytokinins, Gibberellins, Ethylene, Abscisic acid. These groups are distinguished by their chemical structures and the response they evoke within the plant.
Here are some examples of plant hormones: Auxins These growth hormones are essential for proper plant growth and cell elongation. They also regulate phototropism, geotropism, and hydrotropism in plants. Brassinosteroids These hormones are involved in regulating the division, elongation, and differentiation of numerous cell types throughout the entire plant life cycle. Salicylic acid This plant hormone plays an important role in inducing plant defense against a variety of biotic and abiotic stresses. Abscisic acid This growth inhibitor is synthesized within the stem, leaves, fruits, and seeds of the plant. It is also known as the stress hormone as it helps by increasing the plant-tolerance to various types of stress. Gibberellins This hormone regulates a wide range of processes involved in plant growth, organ development, and environmental responses. These include seed germination, stem elongation, leaf expansion, transition to flowering, and the development of flowers, fruits, and seeds.
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