Tuesday, October 6, 2009

18 - Bacteria That Cause Disease in Humans - Major categories and groups

I. Gram-negative eubacteria that have cell walls  
   Group 1: The spirochetes Treponema
Borrelia
Leptospira
  Group 2: Aerobic/microaerophilic, motile helical/vibroid gram-negative bacteria Campylobacter
Helicobacter
Spirillum
  Group 3: Nonmotile (or rarely motile) curved bacteria None
  Group 4: Gram-negative aerobic/microaerophilic rods and cocci Alcaligenes
Bordetella
Brucella
Francisella
Legionella
Moraxella
Neisseria
Pseudomonas
Rochalimaea
Bacteroides (some species)
  Group 5: Facultatively anaerobic gram-negative rods Escherichia (and related coliform bacteria)
Klebsiella
Proteus
Providencia
Salmonella
Shigella
Yersinia
Vibrio
Haemophilus
Pasteurella
  Group 6: Gram-negative, anaerobic, straight, curved, and helical rods Bacteroides
Fusobacterium
Prevotella
  Group 7: Dissimilatory sulfate- or sulfur-reducing bacteria None
  Group 8: Anaerobic gram-negative cocci None
  Group 9: The rickettsiae and chlamydiae Rickettsia
Coxiella
Chlamydia
  Group 10: Anoxygenic phototrophic bacteria None
  Group 11: Oxygenic phototrophic bacteria None
  Group 12: Aerobic chemolithotrophic bacteria and assorted organisms None
  Group 13: Budding or appendaged bacteria None
  Group 14: Sheathed bacteria None
  Group 15: Nonphotosynthetic, nonfruiting gliding bacteria Capnocytophaga
  Group 16: Fruiting gliding bacteria: the myxobacteria None
II. Gram-positive bacteria that have cell walls  
  Group 17: Gram-positive cocci Enterococcus
Peptostreptococcus
Staphylococcus
Streptococcus
  Group 18: Endospore-forming gram-positive rods and cocci Bacillus
Clostridium
  Group 19: Regular, nonsporing gram-positive rods Erysepelothrix
Listeria
  Group 20: Irregular, nonsporing gram-positive rods Actinomyces
Corynebacterium
Mobiluncus
  Group 21: The mycobacteria Mycobacterium
  Groups 22–29: Actinomycetes Nocardia
Streptomyces
Rhodococcus
III. Cell wall-less eubacteria: The mycoplasmas or mollicutes  
   Group 30: Mycoplasmas Mycoplasma
Ureaplasma
IV. Archaebacteria  
  Group 31: The methanogens None
  Group 32: Archaeal sulfate reducers None
  Group 33: Extremely halophilic archaebacteria None
  Group 34: Cell wall-less archaebacteria None
  Group 35: Extremely thermophilic and hyperthermophilic sulfur metabolizers None

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