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Basic Plant Structure

Basic Plant Structure. Germination Hypogeous Epigeous. Vocabulary. Seed Structures Seed Seed coat Cotyledon Embryo Endosperm Hypocotyl Radicle Epicotyl (plumule). Seed coat. Hypocotyl. Epicotyl. Cotyledons. Endosperm. Seed coat. Epicotyl. Hypocotyl. Cotyledon. Radicle.

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Basic Plant Structure

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  1. Basic Plant Structure

  2. Germination Hypogeous Epigeous Vocabulary Seed Structures • Seed • Seed coat • Cotyledon • Embryo • Endosperm • Hypocotyl • Radicle • Epicotyl (plumule)

  3. Seed coat Hypocotyl Epicotyl Cotyledons Endosperm Seed coat Epicotyl Hypocotyl Cotyledon Radicle Parts of a seed • Dicot • Monocot

  4. Monocot Dicot Epigeous Hypogeous Radicle Seed Germination

  5. Shoots Evergreen/Deciduous Annual/Biennial/Perennial Xylem (earlywood/latewood) Phloem Cambium Meristem Vocabulary Shoots • Leaf • Petiole • Axillary bud • Opposite • Alternate • Whorled • Node/Internode

  6. Leaf Arrangement

  7. Leaf Morphology

  8. Leaf Morphology

  9. Flower Morphology

  10. Structure: Flowers-missing parts • Floral Parts Structure Reproduction • Sepals, Petals, Complete Perfect Stamens, Pistil • Sepals, Stamens, Incomplete Perfect Pistil • Sepals, Stamens Incomplete Imperfect

  11. Structure- Compound Flower/Sunflower

  12. Structure- Flower- Compound Pistil/ Strawberry

  13. Structure: Leaf Types

  14. Structure: Leaf Venation

  15. Structure: Leaf Arrangement

  16. Structure: Flower Parts

  17. Tap root and Fibrous (Diffuse) Root Systems – Both arise from radicle

  18. Comparison of Root Systems

  19. Roots: Function • Roots anchor the plant in the substratum or soil. • Roots absorb water and dissolved nutrients or solutes (nitrogen, phosphorous, magnesium, boron, etc.) needed for normal growth, development, photosynthesis, and reproduction. • In some plants, roots have become adapted for specialized functions.

  20. Buttress Roots

  21. Developing Root Stern 2006

  22. Root Cross Section

  23. Symbiotic Roots • Legumes (e.g., pea, beans, peanuts) form root nodules. Mutualism between a plant and bacterium which allows for the fixation of atmospheric nitrogen to form that the plant can utilized. The bacterium is reward with food and a place to live

  24. Symbiotic Roots • Mycorrhizae or "fungus roots" where a symbiotic relationship forms between a plant and a fungus. • In this partnership the fungus provides protection against some types of pathogens and increase the surface area for the absorption of essential nutrients (e.g. phosphorous) from the soil. The plant in return provides food for the fungus in the form of sugar and amino acids

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