1. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings PowerPoint ® Lecture Slide Presentation prepared by Christine L. Case Microbiology B.E Pruitt & Jane J. Stein AN INTRODUCTION EIGHTH EDITION TORTORA FUNKE CASE Chapter 12, part C The Eukaryotes: Fungi, Algae, Protozoa, and Helminths

2. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings The Protozoa Table 12.1

3. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Eukaryotic Unicellular Chemoheterotrophs Vegetative form is a trophozoite Asexual reproduction by fission, budding, or schizogony Sexual reproduction by conjugation Some produce cysts Protozoa Figure 12.16

4. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings No mitochondria Multiple flagella Giardia lamblia Trichomonas vaginalis (no cyst stage) Archaezoa Figure 12.17b-d

5. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings No mitochondria Nonmotile Intracellular parasites Nosema Microspora

6. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Move by pseudopods Entamoeba Acanthamoeba Rhizopoda (amoebas) No jpeg for Figure 21.21 Figure 12.18a

7. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Nonmotile Intracellular parasites Complex life cycles Plasmodium Babesia Cryptosporidium Cyclospora Apicomplexa

8. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Plasmodium Figure 12.19 Infected mosquito bites human; sporozoites migrate through bloodstream to liver of human Sporozoites undergo schizogony in liver cell; merozoites are produced Merozoites released into bloodsteam from liver may infect new red blood cells Merozoites are released when red blood cell ruptures; some merozoites infect new red blood cells, and some develop into male and female gametocytes 12 3 4 6 Asexual reproduction Intermediate host Merozoite develops into ring stage in red blood cell Ring stage Merozoites Another mosquito bites infected humnan and ingests gametocytes 7 5 Ring stage grows and divides, producing merozoites Definitive host In mosquito’s digestive tract, gametocytes unite to form zygote 8 Male gametocyte Female gametocyte Zygote Sexual reproduction Resulting sporozoites migrate to salivary glands of mosquito 9 Sporozoites in salivary gland

9. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Cryptosporidium Figure 25.19

10. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings

11. Move by cilia Complex cells Balantidium coli is the only human parasite Ciliophora (ciliates) Figure 12.20

12. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Move by flagella Photoautotrophs Euglenoids Chemoheterotrophs Naegleria Flagellated and amoeboid forms, meningoencephalitis Trypanosoma Undulating membrane, transmitted by vectors Leishmania Flagellated form in sand fly vector, ovoid form in vertebrate host Euglenozoa

13. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Euglenozoa Figure 12.21

14. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Slime Molds

15. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Cellular slime molds Resemble amoebas, ingest bacteria by phagocytosis Cells aggregate into stalked fruiting body. Some cells become spores Cellular Slime Molds Plasmodial slime molds Multinucleated large cells Cytoplasm separates into stalked sporangia Nuclei undergo meiosis and form uninucleate haploid spores

16. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Cellular Slime Mold Figure 12.22

17. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Plasmodial Slime Mold Figure 12.23