1 / 79

CHAPTER 28 THE ORIGINS OF EUKARYOTIC DIVERSITY

CHAPTER 28 THE ORIGINS OF EUKARYOTIC DIVERSITY. Amoeba proteus unicellular protozoan. Diatom unicellular algae. A plasmodial slime mold. Bull Kelp a multicellular brown algae. The Kingdom Protista Problem

zoltin
Download Presentation

CHAPTER 28 THE ORIGINS OF EUKARYOTIC DIVERSITY

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. CHAPTER 28 THE ORIGINS OF EUKARYOTIC DIVERSITY

  2. Amoeba proteus unicellular protozoan

  3. Diatom unicellular algae

  4. A plasmodial slime mold

  5. Bull Kelp a multicellular brown algae

  6. The Kingdom Protista Problem Several diverse lineages were combined to form the Protista making it a paraphyletic taxon

  7. A model for the Origin of Eukaryotes including the Endosymbiotic hypothesis

  8. Secondary Endosymbiosis gives the algae their diversity Studies of SSU-rRNA indicate that mitochondria evolved from ancestors of alpha proteobacteria and chloroplasts evolved form ancestors of cyanobacteria

  9. Traditional hypothesis for how the Alternative hypothesis three domains of life are related based on based on proteins functioning in DNA sequences transcription and translation

  10. “Tentative” phylogeny of Eukaryotes

  11. A diplomonad-multiple flagella, two nuclei, no plastids or mitochondria

  12. Parabasalids-no mitochondria have an undulating membrane trichomonads

  13. Euglenozoa Euglena

  14. Euglenophyta Euglena

  15. Kinectoplastids Trypanosoma causes African Sleeping Sickness

  16. Kinectoplastids a large organelle with DNA- Trichonympha- flagellated protozoan found in the gut of termites

  17. Apicomplexa-Sporozoans The two host life cycle of Plasmodium that causes malaria

  18. A dinoflagellate-

  19. A dinoflagellate-some are bioluminescent

  20. A bioluminescent “angel” Dinoflagellata

  21. Ciliophora Ciliates

  22. Stentor-uses cilia to pull in food particles

  23. Conjugation in paramecium

  24. Conjugation in paramecium

  25. Ciliated heterotrophic protozoan-Ciliophora

  26. Oomycota water mold-life cycle -have large immobile eggs and small mobile sperm -have coenocytic hyphae

  27. Release of zoospores by water mold Oomycota

  28. Oomycota developing zygotes

  29. Oomycota Water molds; Powdery Mildew

  30. Bacillariophyta-Diatoms-silica-glass-like shell consist of two halves

  31. Diatom-a unicellular alga-Bacillariophyta

  32. Bacillariophyta-Diatoms- freshwater species that has just divided

  33. Bacillariophyta-Diatoms

  34. Bacillariophyta Diatoms

  35. Chrysophyta-Golden Algae

  36. Australian bull kelp-multicellular algae-Phaeophyta

  37. Phaeophyta Brown Algae-largest algae; fucoxanthin pigment; Air bladders

  38. Phaeophyta Brown Algae

  39. Phaeophyta Brown Algae

  40. Phaeophyta Brown Algae Life Cycle with alternation of generations

  41. Rhodophyta Red Algae-pigment phycobilins that absorb blue light this allows them to grow at greatest depths

  42. Rhodophyta Red Algae

  43. Chlorophyta Green Algae-Volvox-a colonial algae

  44. Chlorophyta Green Algae-Volvox-a colonial algae

  45. Chlorophyta Spirogyra conjugation

  46. Chlorophyta Green Algae-no crosswalls with multiple nuclei-coenocytic

  47. Chlorophyta Green Algae- life of Chlamydomonas a unicellular algae

  48. Chlorophyta Green Algae

More Related