| True Bactria or
Eubacteria |
|
| |
| Gram-Negative
Eubacteria |
Gram-Positive
Eubacteria |
| Spirochetes |
Gram-Positive
Cocci |
| Aerobic/Microaerophilic,
Motile, Helical/Vibroid Gram-Negative Bacteria |
Endospore-Forming
Gram-Positive Rods and Cocci |
| Nonmotile (or
Rarely Motile), Gram-Negative Curved Bacteria |
Regular,
Nonsporing Gram-Positive Rods |
| Gram-Negative
Aerobic/Microaerophilic Rods and Cocci |
Irregular,
Nonsporing Gram-Positive Rods |
| Facultatively
Anaerobic Gram-Negative Rods |
Mycobacteria |
| Gram-Negative,
Anaerobic, Straight, Curved, and Helical Bacteria |
Actinomycetes... |
| Dissimilatory
Sulfate or Sulfur-Reducing Bacteria |
|
| Anaerobic
Gram-Negative Cocci |
|
| The Rickettsias and
Chlamydias |
|
| Anoxygenic
Phototrophic Bacteria |
|
| Oxygenic
Phototrophic Bacteria |
|
| Aerobic
Chemolithotrophic Bacteria and Associated Organisms |
|
| Budding and/or
Appendaged Bacteria |
|
| Sheathed Bacteria |
|
| Nonphotosynthetic,
Nonfruiting Gliding Bacteria |
|
| Myxobacteria |
|
| |
|
| Cell
Wall-Less Eubacteria |
|
| Mycoplasmas |
|