1. Evolution of Eukaryotic Diversity Kingdom Protista
Chapter 28
Evolution of Eukaryotic Diversity
Kingdom Protista

2. History of Classification

3. I. Endosymbiotic Theory

4. II. Kingdom Protista Most diverse of all kingdoms
Classification difficult; created more for convenience

5. A. General Characteristics
Eukaryotic
Most single-celled, some colonial, some multicellular
Neither animals, plants or fungi
Auto or heterotrophs; some mixotrophs
Many have either cilia or flagella with 9+2 microtubule arrangement at some point in life cycle
Varied life cycle: alternation of generation, to predominant multicellular diploid life, or predominant multicellular haploid life

6. B. 3 Major Categories Animal-like (protozoa)
Algae or plant-like (photosynthetic)
Fungal-like

7. III. Animal-Like Protists
Called Protozoa
May have given rise to animals
Asexual or sexual reproduction
Many form cysts (resistant bodies) and wait out stressful conditions
Usually non-photosynthetic heterotrophs

8. Rhizopoda (Amoeba)
amoeba video

9. Actinopoda (Actinopods, Foraminiferans)
Radiolarian
Foraminifean

10. Zoomastigina (zooflagellates)
Giardia lamblia
Trypansoma
Trichomonas vaginalis

11. Ciliophora (Ciliates) Stentor Video

13. Apicomplexa (Sporozoa)

14. IV. Algae and Plant-like Protists
Photosynthetic!!
Many have flagella and are often mistaken to be animal-like protists
All have chll a, carotenoids, other forms of chll, and other accessory pigments
Not considered true plants due to lack of plant structures such as a waxy cuticle

15. Euglenophyta (Euglenoids) videos

16. Dinoflagellata (Dinoflagellates) video

17. Bacillariophyta (Diatoms) video

18. Chrysophyta (Golden Algae)

19. Chlorophyta (Green Algae)
Volvox Video

20. Phaeophyta (Brown Algae)

21. Rhodophyta (Red Algae)

22. Fungal-like Protists
Form filaments (spore-bearing bodies) similar to fungus

23. Acrasiomycota (cellular slime molds)

24. Myxomycota (Plasmodial Slime Molds) video

25. Oomycota (Water molds, downey mildews, white rust)