《微生物学 Microbiology》课程PPT教学课件（英文版）domains bacteria archaea 2/5

Chapter 11,part B The Prokaryotes: Domains Bacteria and Archaea

Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings B.E Pruitt & Jane J. Stein Chapter 11, part B The Prokaryotes: Domains Bacteria and Archaea

The B (beta)Proteobacteria B-proteobacteria Oxidize sulfur Chemoheterotrophic Thiobacillus Form sheaths Do not form sheaths Sphaerotilus Cocci Not cocci Neisseria Helical Rods Polar Cause Spirillum flagella pertussis Diverse Found Bordetella carbon in sources sewage Burkholderia Zoogloea

The  (beta) Proteobacteria

The B (beta)Proteobacteria 。Thiobacillus Chemoautotrophic,oxidize sulfur:H2S->SO,2 。Sphaerotilus Chemoheterotophic,form sheaths Bacterial cell Figure 11.5

• Thiobacillus • Chemoautotrophic, oxidize sulfur: H2S → SO4 2– • Sphaerotilus • Chemoheterotophic, form sheaths The  (beta) Proteobacteria Figure 11.5

The B(beta)Proteobacteria 。Neisseria Chemoheterotrophic, cocci ·N.meningitidis 。N.gonorrhoeae 。Spirillum Chemoheterotrophic, helical Figure 11.4&6

• Neisseria • Chemoheterotrophic, cocci • N. meningitidis • N. gonorrhoeae • Spirillum • Chemoheterotrophic, helical The  (beta) Proteobacteria Figure 11.4 & 6

The B (beta)Proteobacteria 。Bordetella Chemoheterotrophic,rods ·B.pertussis Burkholderia.Nosocomial infections Zoogloea.Slimy masses in aerobic sewage-treatment processes

• Bordetella • Chemoheterotrophic, rods • B. pertussis • Burkholderia. Nosocomial infections • Zoogloea. Slimy masses in aerobic sewage-treatment processes The  (beta) Proteobacteria

The y (gamma) Proteobacteria Y-proteobacteria Autotrophic Chemoheterotrophic Use H2S as Use light as Includes intracellular Grow in an energy an energy parasites laboratory source source media Legionellales Beggiatoa Purple Require Do not require sulfur enriched media special media bacteria Francisella Curved Straight rods rods Vibrio Motile Nonmotile Pasteurellales Polar Peritrichous flagella flagella Pseudomonadales Enterobacteriales

The  (gamma) Proteobacteria

The y (gamma)Proteobacteria ·Pseudomonadales: 。Pseudomonas ·Opportunistic pathogens 。Metabolically diverse 。Polar flagella Azotobacter and Azomonas. Nitrogen fixing 。Moraxella. Conjunctivitis Figure 11.7

• Pseudomonadales: • Pseudomonas • Opportunistic pathogens • Metabolically diverse • Polar flagella • Azotobacter and Azomonas. Nitrogen fixing • Moraxella. Conjunctivitis The  (gamma) Proteobacteria Figure 11.7

The y (gamma) Proteobacteria 。Legionellales: Legionella 。Found in streams, warm-water pipes, cooling towers ·L.pneumophilia 。Coxiella 。Q fever (b)This cell has just divided;notice the endospore-like body(E),which is probably responsible for the transmitted via relative resistance of the organism. aerosols or milk Figure 24.15b

• Legionellales: • Legionella • Found in streams, warm-water pipes, cooling towers • L. pneumophilia • Coxiella • Q fever transmitted via aerosols or milk The  (gamma) Proteobacteria Figure 24.15b

The y (gamma)Proteobacteria 。Vibrionales: Found in coastal water 。Vibrio cholerae causes cholera 。V.parahaemolyticus causes gastroenteritis Figure 11.8

• Vibrionales: • Found in coastal water • Vibrio cholerae causes cholera • V. parahaemolyticus causes gastroenteritis The  (gamma) Proteobacteria Figure 11.8

The y (gamma)Proteobacteria The y(gamma)Proteobacteria Enterobacteriales (enterics): Peritrichous flagella,facultatively anaerobic ·Enterobacter ·Erwinia 。Escherichia ·Klebsiella 。Proteus 。Salmonella ·Serratia 。Shigella 。Yersinia

• The  (gamma) Proteobacteria • Enterobacteriales (enterics): • Peritrichous flagella, facultatively anaerobic • Enterobacter • Erwinia • Escherichia • Klebsiella • Proteus • Salmonella • Serratia • Shigella • Yersinia The  (gamma) Proteobacteria