chapter 11, part b

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 INTRODUCTIONEIGHTH EDITION

TORTORA • FUNKE • CASE

Chapter 11, part BThe Prokaryotes:

Domains Bacteria and Archaea


The Nonproteobacteria Gram-Negative Bacteria


• Oxygenic photosynthesis

• Gliding motility

• Fix nitrogen

Cyanobacteria


Cyanobacteria

Figure 11.12a-c


• Anoxygenic photosynthesis

• Purple and green sulfur bacteria

Purple and Green Photosynthetic Bacteria

2H2O + CO2

light(CH2O) + H2O + O2

2H2S + CO2

light(CH2O) + H2O + 2S0


• C. trachomatis

• Trachoma

• STD, urethritis

• C. pneumoniae

• C. psittaci

• Causes psittacosis

Chlamydiae


In Bergey's Manual, Volume 5

Figure 11.22a


In Bergey's Manual, Volume 5

Figure 11.22b


• Borrelia

• Leptospira

• Treponema

Spirochaetes

Figure 11.23


• Anaerobic

• Bacteroides. In mouth and large intestine

• Cytophaga. Cellulose-degrading in soil

Bacteroidetes


• Fusobacterium

• Found in mouth

• May be involved in dental diseases

Fusobacteria

Figure 11.24


• Low G + C

• Gram-positive

Firmicutes


• Clostridium

• Endospore-producing

• Obligate anaerobes

• Epulopiscium

Clostridiales

Figure 11.14 & 15


• Bacillus

• Endospore-producing rods

Bacillales

Figure 11.16b


• Staphylococcus

• Cocci

Bacillales

Figure 1.17


• Generally aerotolerant anaerobes, lack an electron-transport chain

• Lactobacillus

• Streptococcus

• Enterococcus

• Listeria

Lactobacillales

Figure 11.18


• Wall-less, pleomorphic

• 0.1 - 0.24 µm

• M. pneumoniae

Mycoplasmatales

Figure 11.19a, b


• High G + C

• Gram-positive

Actinobacteria


• Actinomyces

• Corynebacterium

• Frankia

• Gardnerella

• Mycobacterium

• Nocardia

• Propionibacterium

• Streptomyces

Actinobacteria

Figure 11.20b


• Hyperthermophiles

• Pyrodictium

• Sulfolobus

• Methanogens

• Methanobacterium

• Extreme halophiles

• Halobacterium

Domain Archaea

Figure 11.25


• Bacteria size range

• Thiomargarita (750 µm) to nanobacteria (0.02 µm) in rocks

Microbial Diversity

Figure 11.26


• 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

chapter 11, part b

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