html5-img
1 / 33

Kingdom Plantae

Kingdom Plantae. Plants!. Plants. Eukaryotic Multicellular Autotrophic (mostly) Photosynthesis Alternation of Generations Sporic Life Cycle Gametophyte Sporophyte. Plants. Alternation of Generations:. Plants. NON-VASCULAR Plants. DIVISION: Bryophyta Mosses, hornworts, liverworts

marisa
Télécharger la présentation

Kingdom Plantae

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. Kingdom Plantae Plants!

  2. Plants • Eukaryotic • Multicellular • Autotrophic (mostly) • Photosynthesis • Alternation of Generations • Sporic Life Cycle • Gametophyte • Sporophyte

  3. Plants Alternation of Generations:

  4. Plants

  5. NON-VASCULAR Plants • DIVISION: Bryophyta • Mosses, hornworts, liverworts • No true vascular tissue • Gametophyte Dominant • Sporophyte reduced (and tiny) -- dependent on the gametophyte. • Homosporous • Swimming sperm – water is needed! • No Seeds

  6. Bryophytes (Mosses) Gametophyte Dominant

  7. Bryophytes (Mosses)

  8. Bryophytes (Mosses)

  9. VASCULAR Plants • Vascular Tissue = specialized conducting tubes for transporting water/nutrients. • Strength • Allow for increases in size & complexity • Xylem – water & mineral transport • Phloem – “photosynthate” & nutrient transport

  10. SEEDLESS VASCULAR Plants • 4 DIVISIONS: • Psilophyta – whisk ferns • Lycophyta – club mosses • Sphenophyta -- horsetails • Pterophyta – ferns • Sporophyte Dominant • Gametophyte reduced -- dependent on the sporophyte. • Homosporous • Swimming sperm – water is needed! • No Seeds

  11. Pterophytes (Ferns)

  12. Pterophytes (Ferns)

  13. SEEDS • Seed = • Embryo + Food + Integuments • Allows for: • Protection • Dormancy • Dispersal • Nourishment • Germination

  14. SEED-PRODUCING VASCULAR Plants • Seeds! • Reduced Gametophytes • Gametophytes dependent on Sporophytes • Heterosporous • MicrosporesMicrogametophytes (pollen) • MegasporesMegagametophytes (ovules) • Allows for success in DRY environments: land! • Gymnosperms -- “Naked Seeds” • Angiosperms -- “Vessel Seeds”

  15. Gymnosperms

  16. Gymnosperms = naked seeds • 4 DIVISIONS: • Cycadophyta - cycads • Ginkgophyta - ginkgo • Gnetophyta - ephedra • Coniferophyta - conifers • Sporophyte Dominant • Gametophyte very reduced -- dependent on the sporophyte. • Heteroporous • Non-swimming sperm – water is not needed!

  17. Coniferophyta • “Conifers” • Pine, spruce, fir, larch, juniper, redwood, cypress, hemlock… • Often Evergreen • Leaves needle-like • Water retension • Cones • Ovulate cones • Staminate cones

  18. Coniferophyta Spring, 2006: Microspores pollen Megaspores Summer, 2007: pollen released, enters ♀ cones Fall, 2008: seeds shed Microspores

  19. Angiosperms = vessel seeds • 1 DIVISION: • Anthophyta – Flowering Plants! • Sporophyte Dominant • Gametophyte very reduced -- dependent on the sporophyte. • Heteroporous • Non-swimming sperm – water is not needed!

  20. Anthophyta • Flowering Plants (= fruiting plants!) • Daisy, Lily, Marigold, Oak, Maple, Grasses, Palms, Cattails… • Flowers: • Complete • Incomplete Pistil • Perfect • Imperfect (Either Staminate or Carpellate Flowers) Monoecious Dioecious

  21. Anthophyta

  22. Anthophyta • Fruit = Expanded ovary (surrounding the seeds) – the “vessel”. • (Many variations)

  23. Anthophyta • Often Deciduous (seasonal drop of leaves) • Variously-shaped leaves/roots/stems • 2 CLASSES: • Monocotyledonae (monocots) • Dicotyledonae (dicots)

  24. Monocotyledonae (Monocots) • 1 Cotyledon • Parallel Leaf Veination • Flower parts in 3’s & 6’s • Scattered vascular bundles in shoot. • Fibrous Root System

  25. Dicotyledonae (Dicots) • 2 Cotyledons • Netted Leaf Veination • Flower Parts in 4’s or 5’s • Ring of Vascular Bundles • Tap Root System

  26. Vascular Plant Form & Function

  27. Flowering Plant Body Plan

  28. Roots Growing Tip

  29. Shoots Phloem Xylem

  30. Leaves

  31. Plant Growth • Meristems • Primary Growth -- Length of shoots & roots. • Apical Meristems • Secondary Growth -- Girth of shoots & roots • Lateral Meristems (Vascular Cambium, Pericycle)

More Related