Spirochetes

Straight and curved rods and Coccii

• Aerobes
  • Spiral & curved rods (Spirillum, Azospirilum, Aquaspirillum, Campylobacter, Bdellovibrio Helicobacterium)

  • Rods & cocci (Pseudomonads, nitrogen fixers, acetate producers, Legionella, Neisseria, Methylotrophs, Brucella, Bordetella, Francisella)

• Facultative Anaerobes
  • Enterobactericeae (Salmonella, Shigella, Klebsiella, Serratia, Proteus, Erwinia)

  • Vibrionaceae (Vibrio, Aeromonas, Photobacterium)

  • Pasteurellacea (Pasteurella, Haemophilus)

• Obligate Anaerobes
  • Bacteroidaceae (Bacteroides, Fusobacterium, Butyvibrio, Veillonella)

  • Sulfate reducing bacteria

Special Groups

• Rickettsia

• Chlamydia