《微生物学 Microbiology》课程PPT教学课件（英文版）domains bacteria archaea 4/5

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

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

Spirochaetes 。Borrelia 。Leptospira 。Treponema Axial Sheath filaments Sheath Axial filaments (a)Section of LM spirochete 0.24m (b)Treponema pallidum Figure 11.23

• Borrelia • Leptospira • Treponema Spirochaetes Figure 11.23

Bacteroidetes 。Anaerobic Bacteroides.In mouth and large intestine Cytophaga.Cellulose-degrading in soil

• Anaerobic • Bacteroides. In mouth and large intestine • Cytophaga. Cellulose-degrading in soil Bacteroidetes

Fusobacteria 。Fusobacterium 。Found in mouth ·May be involved in dental diseases Figure 11.24

• Fusobacterium • Found in mouth • May be involved in dental diseases Fusobacteria Figure 11.24

Firmicutes ·LowG+C 。Gram-positive Low G+C gram-positives Wall-less Have cell walls Mycoplasmatales Produce No endospores endospores Lactobacillales Anaerobic Aerobic and facultatively anaerobic Clostridiales Bacillales

• Low G + C • Gram-positive Firmicutes

Clostridiales 。Clostridium 。Endospore- producing ·Obligate anaerobes ·Epulopiscium Figure 11.14 15

• Clostridium • Endospore￾producing • Obligate anaerobes • Epulopiscium Clostridiales Figure 11.14 & 15

Bacillales 。Bacillus Endospore-producing rods Endospore case (b)Bacillus cereus germinating Figure 11.16b

• Bacillus • Endospore-producing rods Bacillales Figure 11.16b

Bacillales 。Staphylococcus ·Cocci Figure 1.17

• Staphylococcus • Cocci Bacillales Figure 1.17