Biochemical Test of Haemophilus aegyptius

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Last Updated on February 4, 2021 by Sagar Aryal

Biochemical Test of Haemophilus aegyptius

Some of the characteristics are as follows:

Basic CharacteristicsProperties (Haemophilus aegyptius)
CapsuleNegative (-ve)
CatalasePositive (+ve)
GasNegative (-ve)
Gram Staining.Gram-negative
H2SNegative (-ve)
HemolysisNegative (-ve)
IndoleNegative (-ve)
MotilityNegative (-ve)
Nitrate ReductionPositive (+ve)
Nitrite ReductionNegative (-ve)
OxidasePositive (+ve)
ShapeLong slender rods
UreasePositive (+ve)
V-factor requirementPositive (+ve)

Fermentation of

AdonitolNegative (-ve)
ArabinoseNegative (-ve)
CellobioseNegative (-ve)
DulcitolNegative (-ve)
ErythritolNegative (-ve)
FructoseNegative (-ve)
GlucosePositive (+ve)
GlycerolNegative (-ve)
InositolNegative (-ve)
InulinNegative (-ve)
LactoseNegative (-ve)
MannitolNegative (-ve)
MannoseNegative (-ve)
MelibioseNegative (-ve)
RaffinoseNegative (-ve)
RhamnoseNegative (-ve)
SalicinNegative (-ve)
SorbitolNegative (-ve)
SorboseNegative (-ve)
SucroseNegative (-ve)
TrehaloseNegative (-ve)
XylitolNegative (-ve)
XylosePositive (+ve)

Enzymatic Reactions

Alkaline PhosphatasePositive (+ve)
Arginine DihydrolaseNegative (-ve)
Esculin HydrolysisNegative (-ve)
FucosidaseNegative (-ve)
IgA1 proteasePositive (+ve)
Lysine decarboxylaseNegative (-ve)
NeuraminidasePositive (+ve)
ONPG (β-galactosidase)Negative (-ve)
Ornithine DecarboxylaseNegative (-ve)


  1. Bergey’s Manual of Systematic Bacteriology Volume 2: The Proteobacteria, Part B: The Gammaproteobacteria.

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