1 / 15

Chapter 11, part B

Chapter 11, part B. The Prokaryotes: Domains Bacteria and Archaea. The  (beta) Proteobacteria.

thy
Download Presentation

Chapter 11, part B

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

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

  2. The  (beta) Proteobacteria  Proteobacteriainclude chemoautotrophs and chemoheterotrophs. Members of this sub-phylum are found in soil and water and some are human pathogens. They generally derive nutrients from decomposition of organic material.

  3. The  (beta) Proteobacteria • Thiobacillus • Chemoautotrophic, oxidize sulfur: H2S  SO42– • Sphaerotilus • Chemoheterotophic, form sheaths Figure 11.5

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

  5. The  (beta) Proteobacteria • Bordetella • Chemoheterotrophic, rods • B. pertussis • Bordetella is the most common cause of tracheobronchitis (kennel cough) in dogs. • Zoogloea. Slimy masses in aerobic sewage-treatment processes sprinkler systems

  6. The  (gamma) Proteobacteria • (gamma) Proteobacteria: Largest subgroup of proteobacteria. Varied physiology, include the orders Pseudomonadales, Legionellales, Vibrionales, Enterobacteriales, and Pasteurellales.

  7. The  (gamma) Proteobacteria • Pseudomonadales: • Pseudomonas • Opportunistic pathogens • Metabolically diverse • Polar flagella • Often produce water soluble pigments • Plant and animal pathogen Figure 11.7

  8. The  (gamma) Proteobacteria • Legionellales: • Legionella • Found in streams, warm-water pipes, cooling towers • L. pneumophilia Hartmannella vermiformis amoeba filled with Legionella pneumophila (Photo: Holland/Özel, Robert Koch-Institut) Figure 24.15b

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

  10. The  (gamma) Proteobacteria Enterobacteriales (enterics): • Facultatively anaerobic; Peritrichous flagella • Enterobacter • Erwinia • Escherichia • Klebsiella • Proteus • Salmonella • Serratia • Shigella • Yersinia

  11. The  (gamma) Proteobacteria Figure 11.9a, b

  12. Salmonella • Salmonella enterica • Hundreds of serotypes • Often named by place of origin • Poultry / eggs? salmonellosis • Salmonella typhi • Typhoid Mary and typhoid fever An illustration of Typhoid Mary that appeared in 1909 in The New York American.(Public Domain)

  13. More enterics • Escherichia • E. coli • Serratia marcescens • Nosocomial infections • Red pigment • Shigella • Bacillary dysentery or shigellosis • Proteus • Swarming colonies - UTI • Yersinia • Plague, Black Death • Vectored by flea • Large capsule • Erwinia • Plant soft rot • Enterobacter • UTI

  14. The  (gamma) Proteobacteria • Pasteurellales: • Pasteurella • Cause pneumonia and septicemia • humans can acquire the organism from dog or cat bites. Patients tend to exhibit swelling, cellulitis, and some bloody drainage at the wound site. • Haemophilus • Haemophilus "loves heme", more specifically it requires a precursor of heme in order to grow http://textbookofbacteriology.net/haemophilus.html

  15. The  (gamma) Proteobacteria Francisella • Chemoheterotrophic, tularemia “rabbit fever”

More Related