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Plant Hormones
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Auxin
Promotes stem elongation, root growth, differentiation, and branching. It also plays a role in regulating fruit development and apical dominance.
Cytokinins
Stimulate cell division and growth, promote lateral bud growth, and delay leaf senescence.
Gibberellins
Promote stem elongation, seed germination, and fruit enlargement, as well as flowering and leaf and fruit death.
Abscisic Acid (ABA)
Inhibits growth, promotes stomatal closure during water stress, and induces seed dormancy.
Ethylene
It is a gas that promotes fruit ripening, leaf and flower senescence, and the abscission of leaves and fruits.
Brassinosteroids
Promote cell expansion and elongation, pollen tube growth, and vascular differentiation. They also provide resistance to some stresses.
Jasmonates
Involved in plant defense against herbivores and pathogens, wound healing, and developmental processes like root growth and senescence.
Salicylic Acid
Important in plant defense against pathogens and local and systemic acquired resistance.
Strigolactones
Regulate shoot branching, root development, and the symbiotic relationship between roots and arbuscular mycorrhizal fungi.
Florigen
A hypothetical hormone thought to control flowering in plants; it is synthesized in the leaves and acts in the shoot apical meristem to trigger flowering.
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