Cell shape
|
Characteristics
|
Genus
|
Family
|
Gram negative bacteria
|
Cocci
|
Aerobic
|
Neisseria Veilonella
|
Neisseriaceae
|
Coccobacilli
|
-
|
Brucella Bordetella Pasteurella, Mannheimia Haemophilu s
|
Brucellaceae
|
Bacilli
|
Facultative anaerobic, motile with peritrichous flagella or non motile
|
|
Enterobacteriaceae
|
Aerobic, motile with peritrichous flagella or non motile
|
Azotobacter Rhizobium
|
Azotobacteraceae
|
Aerobic, motile with polar flagella
|
Nitrosomonas, Nitrobacter, Thiobacillus, Pseudomonas, Acetobacter, Legionella
|
Rhizobiaceae
|
Facultative anaerobic with polar flagella
|
Campylobacter, Zymomonas, Aeromonas
|
Nitrobacteraceae Pseudomona-daceae
|
Curved rods with polar flagella
|
Vibrio, Spirillum, Desulfovibrio
|
Spirillaceae
|
Gram positive bacteria
|
Cocci
|
Cells in irregular clusters
|
Staphylococcus, Micrococcus, Sarcina
|
Micrococcaceae
|
Cells in chains
|
Streptococcus, Leuconostoc
|
Streptococcaceae
|
Bacilli
|
Aerobic Spore forming Anaerobic Spore forming
|
Bacillus Clostridium
|
Bacillaeceae
|
Lactic fermentation Propionic fermentation
|
Lactobacillus Propionibacterium
|
Lactobacillacaeae Propioni-bacteriaceae
|
Oxidative, weakly fermentative
|
Corynebacterium Listeria Erysipelothrix
|
-
|
Other major groups
|
Acid-fast rods Ray-forming rods
|
-
|
Mycobacterium Actinomyces, Nocardia, Streptomyces
|
Actinomycetales
|
Spiral organisms
|
motile
|
Treponema Borrellia Leptospira Spirocheta
|
Spirochetales
|
Small pleomorphic
|
lack rigid wall
|
Mycoplasma
|
Mollicutes
|
Small intracellular parasites
|
-
|
Rickettsiae Coxiella Chlamydia
|
Rickettsiaceae Chlamydiaceae
|
Intracellular parasites
|
borderline with protozoa
|
Bartonella
|
Bartonellaceae
|