plant hormones

• Auxins are plant hormones that promote cell elongation and are involved in tropisms such as phototropism and gravitropism.
• Ethylene is produced during ripening and aging processes and promotes fruit softening and abscission.
• Gibberellins stimulate seed germination by promoting enzyme production and increasing respiration rates.
• Cytokinins regulate the growth rate of cells, particularly meristematic tissues, and can inhibit senescence.
• Auxins promote cell division and elongation, causing cells to become longer but not wider.
• The main auxin is indole-3-acetic acid (IAA).
• Auxins are produced by the shoot apical meristem, young leaves, buds, and flowers.
• Abscisic acid is a plant hormone that regulates stomatal closure and promotes seed dormancy.
• Chemotropism is a tropism in which plants respond to chemicals by growing towards or away from them.
• Cytokinins regulate the growth rate of cells, particularly meristematic tissues, and delay senescence.
• Gibberellins control seed germination, flower development, and leaf drop.
• Cytokinins regulate the growth rate, delay senescence, and stimulate shoot formation.
• Auxins cause curvature towards light (phototropic response) or away from gravity (gravitropic response).
• Abscisic acid inhibits seed germination, causes stomatal closure, and induces dormancy.
• Abscisic acid (ABA) regulates water loss from leaves and helps plants cope with drought stress.
• Abscisic acid inhibits seed germination and causes leaf drop in response to drought stress.
• The concentration gradient of auxins determines the direction of growth.
• Plant hormones play important roles in various physiological processes including seed dormancy, flower development, leaf abscission, root hair formation, and pollen tube guidance.
• Auxins move through the phloem from source to sink tissue.
• Hormone action involves binding to receptors on target cells, leading to changes in gene expression or protein synthesis.
• Auxins move through the phloem from source to sink tissue.
• Auxins also play a role in apical dominance, where they prevent lateral bud development.
• Plant hormones play important roles in various physiological processes including growth regulation, developmental control, and responses to environmental signals.
• Auxins are synthesized in shoot tips and young leaves.
• Auxins cause curvature towards light due to differential growth on opposite sides of the stem.
• Auxins cause cells to grow longer than they would normally be.
• Plant hormones play important roles in various physiological processes such as growth, development, reproduction, and stress responses.
• Auxins increase the length of internodes, making plants taller.
• Phototropism is a response to light where plants grow towards it.
• Gravitropism is a response to gravity where plants grow upwards or downwards depending on the direction of gravity.
• Hormonal regulation involves interactions between different types of hormones and their receptors within specific target cells.
• Ethylene regulates fruit ripening, abscission, and responses to stress.
• Plant hormones are chemical messengers produced by plants that coordinate various physiological processes such as growth, reproduction, and defense against environmental stresses.
• Plant hormones play important roles in various physiological processes such as growth, differentiation, reproduction, and response to environmental signals.
• Plant hormones play important roles in various physiological processes including growth, differentiation, reproduction, and response to environmental stimuli.
• Plant hormones play important roles in various physiological processes such as growth, differentiation, reproduction, and stress responses.
• most often associated with the promotion of stem growth, and the application of gibberellin to intact plants can induce large increases in plant height
• Gibberellins (GA) promote seed germination, flower development, and leaf senescence
• Cytokinins (CK) regulate cell division and delay aging
• Auxins (IAA) control apical dominance, phototropism, and root initiation