1 / 7

Plant Hormones & their Effects

Discover the critical roles of plant hormones, including Auxin, Cytokinins, Gibberellins, Abscisic Acid, Ethylene, and Brassinosteroids. Each hormone has specific functions and locations within the plant. Auxin stimulates stem elongation and regulates fruit development. Cytokinins promote cell division and growth while delaying senescence. Gibberellins enhance germination and flowering. Abscisic Acid inhibits growth and manages water stress. Ethylene regulates fruit ripening and development. Brassinosteroids influence root growth and xylem differentiation. Explore how these hormones help plants adapt and thrive!

jara
Télécharger la présentation

Plant Hormones & their Effects

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Plant Hormones & their Effects AP Biology

  2. Auxin • Found: • Embryo of seed, meristems of apical buds, young leaves • Major Functions - Stimulates stem elongation root growth, cell differentiation, and branching - Regulates development of fruit - Enhances apical dominance - Functions in phototropism and gravitropism

  3. Cytokins Found: - Synthesized in roots and transported to other organs Function: - Affect root growth and differentiation - Stimulate cell division and growth - Delay senescence

  4. Gibberellins Found: - Meristems of apical buds and roots, young leaves, embryo Function: - Promote seed and bud germination, stem elongation, and leaf growth - Stimulate flowering and development of fruit - Affect root growth and differentiation

  5. Abscisic Acid Found: - Leaves, stems, roots, green fruit Function: - Inhibits growth - Closes stomata during water stress - Counteracts breaking of dormancy

  6. Ethylene Found: - Tissues of ripening fruits, nodes of stems, aging leaves and flowers Function: - Promotes fruit ripening, opposes some auxin effects - Promotes or inhibits growth and development of roots, leaves, and flowers, depending on species

  7. Brassinosteroids Found: - Seeds, fruits, shoots, leaves, and floral buds Function: - Inhibits root growth - Slows leaf abscission - Promotes xylem differentiation

More Related