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 11, part E The Prokaryotes: Domains Bacteria and Archaea

2. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Generally aerotolerant anaerobes, lack an electron- transport chain Lactobacillus Streptococcus Enterococcus Listeria Lactobacillales Figure 11.18

3. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Wall-less, pleomorphic 0.1 - 0.24 µm M. pneumoniae Mycoplasmatales Figure 11.19a, b

4. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings High G + C Gram-positive Actinobacteria

5. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Actinomyces Corynebacterium Frankia Gardnerella Mycobacterium Nocardia Propionibacterium Streptomyces Actinobacteria Figure 11.20b

6. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Hyperthermophiles Pyrodictium Sulfolobus Methanogens Methanobacterium Extreme halophiles Halobacterium Domain Archaea Figure 11.25

7. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Bacteria size range Thiomargarita (750 µm) to nanobacteria (0.02 µm) in rocks Microbial Diversity Figure 11.26

8. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings PCR indicates up to 10,000 bacteria/gm of soil. Many bacteria have not been identified or characterized because they: Haven't been cultured Need special nutrients Are part of complex food chains requiring the products of other bacteria Need to be cultured to understand their metabolism and ecological role Microbial Diversity