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Lab 8

Lab 8. Chlorophyta, Lichens, Symbiosis. Green Plants. Common name : Green plants Synonyms : Viridiplantae Mode of nutrition : Autotrophic; green chloroplasts (some parasitic members) Habitat : Freshwater, marine, terrestrial Growth habit : Unicellular, filamentous, various multicellular

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Lab 8

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  1. Lab 8 Chlorophyta, Lichens, Symbiosis

  2. Green Plants • Common name: Green plants • Synonyms: Viridiplantae • Mode of nutrition: Autotrophic; green chloroplasts (some parasitic members) • Habitat: Freshwater, marine, terrestrial • Growth habit: Unicellular, filamentous, various multicellular • Cell wall: Cellulose, hemicellulose, pectins • Undulipodia (“flagella”): Whiplash (2 to 1000+) or none

  3. Green Plants • Food storage: Starch • Clonal reproduction: zoospores, aplanospores, multicellular propagules, vegetative • Sexual reproduction: Unicellular, haploid dominant, diploid dominant, alternation of generations • Included Phyla: Chlorophyta, Hepatophyta, Anthocerophyta, Bryophyta, Lycophyta, Psilotophyta, Sphenophyta, Pterophyta, Cycadophyta, Ginkgophyta, Coniferophyta, Gnetophyta, Anthophyta

  4. Chlorophyta • General features of the green plants • Common name: Green algae • Synonyms: None • Habitat: Freshwater, marine, terrestrial • Growth habit: Unicellular, colonial, filamentous, flat sheet, plectenchyma, parenchyma • Undulipodia (“flagella”): two or more whiplash, or none • Clonal reproduction: Mitosis of unicells, zoospores, rarely aplanospores

  5. Chlorophyta • Sexual reproduction: Haploid dominant, diploid dominant, alternation of generations, unicellular; isogamous, anisogamous, oogamous • Representative genera: Chara, Chlamydomonas, Cladophora, Closterium, Gonium, Hydrodictyon, Monostroma, Oedogonium, Pediastrum, Scenedesmus, Spirogyra, Ulva, Volvox • Recognized by: Green plants that are not “land plants” (embryophytes)

  6. APediastrum Chlorophyta

  7. AScenedesmus Chlorophyta

  8. UScenedesmus Chlorophyta

  9. AVolvox Chlorophyta

  10. UVolvox Chlorophyta

  11. ASpirogyra Chlorophyta

  12. USpirogyra Chlorophyta

  13. AOedogonium Chlorophyta

  14. UCladophora Chlorophyta

  15. ACladophora Chlorophyta

  16. DCodium Chlorophyta

  17. DUlva Chlorophyta

  18. AMonostroma or Ulva Chlorophyta

  19. AChara Chlorophyta

  20. Lichens • Fungus and alga • Ascomycota and Chlorophyta most common (all examples in lab) • Autotrophic • Clonal reproduction by soredia or isidia • Sexual reproduction by ascospores, followed by parasitism of free-living algae

  21. P crustose, foliose, and fruticose Lichens

  22. P crustose, from Cal Poly Pomona Lichens

  23. AUmbilicaria Lichens

  24. APhyscia Lichens

  25. PAzolla with Anabaena Mutualism

  26. DAzolla with Anabaena Mutualism

  27. D Cycad coralloid roots Mutualism

  28. D Cycad coralloid roots Mutualism

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