Biochemical Test of Alcaligenes faecalis subsp. faecalis

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Last Updated on February 4, 2021 by Sagar Aryal

Biochemical Test of Alcaligenes faecalis subsp. faecalis

Image Source: WIKIPEDIA

Some of the characteristics are as follows:

Basic CharacteristicsProperties (Alcaligenes faecalis subsp. faecalis)
Bromocresol purple milkAlkaline reaction
CapsuleNegative (-ve)
CatalasePositive (+ve)
CitratePositive (+ve)
FlagellaPositive (+ve)
Gelatin HydrolysisNegative (-ve)
Gram StainingGram-negative (-ve)
Growth in 7% NaClPositive (+ve)
H2SNegative (-ve)
HemolysisPositive (+ve)
IndoleNegative (-ve)
MotilityPositive (+ve)
Nitrate ReductionNegative (-ve)
Nitrite ReductionPositive (+ve)
OxidasePositive (+ve)
PigmentNegative (-ve)
ShapeRods or coccobacilli
SporeNegative (-ve)
Tween 80Negative (-ve)
UreaseNegative (-ve)

Fermentation of

AcetatePositive (+ve)
AdonitolNegative (-ve)
AdipateNegative (-ve)
AlaninePositive (+ve)
ArabinoseNegative (-ve)
ArabitolNegative (-ve)
CelluloseNegative (-ve)
DNaseNegative (-ve)
FructoseNegative (-ve)
GalactoseNegative (-ve)
GlucoseNegative (-ve)
GluconateNegative (-ve)
GlutamatePositive (+ve)
GlycerolNegative (-ve)
GlycogenNegative (-ve)
LactatePositive (+ve)
MalatePositive (+ve)
MaltoseNegative (-ve)
MannitolNegative (-ve)
MannoseNegative (-ve)
MelibioseNegative (-ve)
PropionatePositive (+ve)
RaffinoseNegative (-ve)
RhamnoseNegative (-ve)
SorbitolNegative (-ve)
StarchNegative (-ve)
SuccinatePositive (+ve)
SucroseNegative (-ve)
TartrateNegative (-ve)
XyloseNegative (-ve)

Enzymatic Reactions

Esculin HydrolysisNegative (-ve)
Lysine DecarboxylaseNegative (-ve)
Ornithine DecarboxylasePositive (+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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