Biochemical Test of Alcaligenes faecalis subsp. faecalis

Biochemical Test of Alcaligenes faecalis subsp. faecalis

Image Source: WIKIPEDIA

Some of the characteristics are as follows:

Basic Characteristics Properties (Alcaligenes faecalis subsp. faecalis)
Bromocresol purple milk Alkaline reaction
Capsule Negative (-ve)
Catalase Positive (+ve)
Citrate Positive (+ve)
Flagella Positive (+ve)
Gelatin Hydrolysis Negative (-ve)
Gram Staining Gram-negative (-ve)
Growth in 7% NaCl Positive (+ve)
H2S Negative (-ve)
Hemolysis Positive (+ve)
Indole Negative (-ve)
Motility Positive (+ve)
Nitrate Reduction Negative (-ve)
Nitrite Reduction Positive (+ve)
Oxidase Positive (+ve)
Pigment Negative (-ve)
Shape Rods or coccobacilli
Spore Negative (-ve)
Tween 80 Negative (-ve)
Urease Negative (-ve)

Fermentation of

Acetate Positive (+ve)
Adonitol Negative (-ve)
Adipate Negative (-ve)
Alanine Positive (+ve)
Arabinose Negative (-ve)
Arabitol Negative (-ve)
Cellulose Negative (-ve)
DNase Negative (-ve)
Fructose Negative (-ve)
Galactose Negative (-ve)
Glucose Negative (-ve)
Gluconate Negative (-ve)
Glutamate Positive (+ve)
Glycerol Negative (-ve)
Glycogen Negative (-ve)
Lactate Positive (+ve)
Malate Positive (+ve)
Maltose Negative (-ve)
Mannitol Negative (-ve)
Mannose Negative (-ve)
Melibiose Negative (-ve)
Propionate Positive (+ve)
Raffinose Negative (-ve)
Rhamnose Negative (-ve)
Sorbitol Negative (-ve)
Starch Negative (-ve)
Succinate Positive (+ve)
Sucrose Negative (-ve)
Tartrate Negative (-ve)
Xylose Negative (-ve)

Enzymatic Reactions

Esculin Hydrolysis Negative (-ve)
Lysine Decarboxylase Negative (-ve)
Ornithine Decarboxylase Positive (+ve)


  1. Brenner, D. J., Krieg, N. R., Garrity, G. M., & Staley, J. T. (2005). Bergey’s manual of systematic bacteriology: Volume two. New York: Springer.

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