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 A The Prokaryotes: Domains Bacteria and Archaea

2. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings The Prokaryotes: Domains Bacteria and Archaea One circular chromosome, not in a membrane No histones No organelles Peptidoglycan cell walls Binary fission

3. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Proteobacteria Mythical Greek god, Proteus, who could assume many shapes Gram- negative Domain Bacteria

4. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Human pathogens: Bartonella B. henselaCat-scratch disease BrucellaBrucellosis The  (alpha) Proteobacteria

5. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Obligate intracellular parasites: Ehrlichia. Tick-borne, ehrlichiosis Rickettsia. Arthropod-borne, spotted fevers R. prowazekiiEpidemic typhus R. typhiEndemic murine typhus R. rickettsiiRocky Mountain Spotted Fever The  (alpha) Proteobacteria

6. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings The  (alpha) Proteobacteria Figure 11.1

7. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Wolbachia. Live in insects and other animals The  (alpha) Proteobacteria

8. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Have prosthecae: Caulobacter. Stalked bacteria found in lakes Hyphomicrobium. Budding bacteria found in lakes The  (alpha) Proteobacteria Figure 11.2 & 3

9. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Plant pathogen: Agrobacterium. Insert a plasmid into plant cells, inducing a tumor The  (alpha) Proteobacteria Figure 9.17

10. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Chemoautotrophic: Oxidize nitrogen for energy Fix CO 2 Nitrobacter. NH 3 +  NO 2 – Nitrosomonas. NO 2 –  NO 3 – The  (alpha) Proteobacteria

11. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Nitrogen-fixing bacteria: Azospirillum Grow in soil, using nutrients excreted by plants Fix nitrogen Rhizobium Fix nitrogen in the roots of plants The  (alpha) Proteobacteria Figure 27.5

12. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Produce acetic acid from ethyl alcohol: Acetobacter Gluconobacter The  (alpha) Proteobacteria