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The Intricacies of Plant Reproduction

Explore the fascinating process of plant reproduction through male and female gametophyte development, fertilization, and embryo growth. Learn about bisexual and unisexual flowers, ovule transformation into seeds, and embryo development stages.

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The Intricacies of Plant Reproduction

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  1. Plant Reproduction AP Biology Crosby High School

  2. Flowers • Male gametophyte: pollen grain • Female gametophyte: embryo sac • Bisexual flower • Unisexual flower • Stamenate • carpellate • Monoecious • Dioecious

  3. Gametophyte Development • Male • Microsporyte generates 4 microspores • Microspore divides creating generative and tube cells • Two cells and wall make grain • Female • Megasporyte forms 4 megaspores • 1 megaspore divides 3 times • 1 egg and 2 synergids • 3 Antipodal cells • 2 polar nuclei

  4. Fertilization • Self-fertilization • Unisexual cannot self-fertilize • Bisexual flowers often mature at different times • Self-incompatability • Double fertilization

  5. Ovule Becomes a Seed • Endosperm Development • Embryo Development • Creation of Basal and Terminal cell • Basal ends becomes Suspensor • Terminal: spherical proembryo • Three primary meristems also form

  6. Mature Seed • Hypocotyl • Radicle • Epicotyl

  7. Embryo Development

  8. Gametophyte Development

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