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K: Plantae = The Land Plants PowerPoint Presentation
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K: Plantae = The Land Plants

K: Plantae = The Land Plants

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K: Plantae = The Land Plants

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  1. K: Plantae = The Land Plants

  2. What is a plant? Multicellular autotroph? With complex tissues?

  3. And blue pigment, phycocyanin

  4. From green algae - early clues Chlorophylls Carotenoids & other pigments Starch Cellulose

  5. Alternation of generation

  6. From Charophycean green algae 1. rosette terminal complexes (RTCs) in plasma membrane for making cellulose 2. Special peroxisomal enzymes for toxic oxygen products

  7. From Charophycean green algae 3. Type of flagellar root base 4. phragmoplasts (for cytokinesis) chlorophytes charophytes/land plants microtubules microtubules (4 bundles)

  8. Charophycean algae retain zygote

  9. Alternation of generation mitosis mitosis mitosis mitosis mitosis

  10. Walled spores made in sporangium/ia Gametes made in gametangium/ia Male: antheridium/ia Female: archegonium/ia

  11. 33-7 33-6 Apical meristems

  12. Non-vascular plants

  13. Moss life cycle

  14. Plants (gametophytes) can be hermaphroditic/bisexual monoecious dioecious Plants (sporophytes) can be homosporous heterosporous

  15. Major innovations Cuticle with flavonoids Rhizoids Air pore

  16. P: Bryophyta = mosses Sphagnum

  17. P: Hepatophyta = liverworts

  18. P: Anthocerophyta = hornworts

  19. Seedless vascular plants xylem phloem

  20. P: Lycopodiophyta

  21. Early vascular plant (fossil): Rhynia stems rhizoids

  22. First leaves

  23. P: Lycopodiophyta Lycopodium = ground pine/cedar homosporous

  24. http://www.youtube.com/watch?v=F3ChXba3dus

  25. Selaginella = spike moss heterosporous

  26. heterosporous too

  27. P: Pteridophyta = ferns Azolla = mosquito fern

  28. Fern life cycle indusium

  29. Innovations/ changes

  30. “Big” leaves

  31. croziers = fiddleheads

  32. Horsetails = scouring rushes