Biochemical Test of Haemophilus parainfluenzae

Table of Contents

Some of the characteristics are as follows:

Basic Characteristics	*Properties (Haemophilus parainfluenzae)*
Capsule	Variable
Catalase	Variable
Gas	Variable
Gram Staining	Gram-negative (-ve)
H2S	Positive (+ve)
Hemolysis	Negative (-ve)
Indole	Variable
Motility	Negative (-ve)
Nitrate Reduction	Positive (+ve)
Nitrite Reduction	Positive (+ve)
Oxidase	Positive (+ve)
Shape	Small, pleomorphic rods, usually with long, ﬁlamentous forms.
Urease	Variable
V-factor requirement	Positive (+ve)
Fermentation of
Adonitol	Negative (-ve)
Arabinose	Negative (-ve)
Cellobiose	Negative (-ve)
Dulcitol	Negative (-ve)
Erythritol	Negative (-ve)
Fructose	Positive (+ve)
Galactose	Positive (+ve)
Glucose	Positive (+ve)
Glycerol	Variable
Inositol	Negative (-ve)
Inulin	Negative (-ve)
Lactose	Negative (-ve)
Maltose	Positive (+ve)
Mannitol	Negative (-ve)
Mannose	Positive (+ve)
Melibiose	Negative (-ve)
Raffinose	Variable
Rhamnose	Negative (-ve)
Salicin	Negative (-ve)
山梨糖醇	Negative (-ve)
Sorbose	Negative (-ve)
Sucrose	Positive (+ve)
Trehalose	Negative (-ve)
Xylose	Negative (-ve)
Enzymatic Reactions
Alkaline Phosphatase	Positive (+ve)
Arginine Dihydrolase	Negative (-ve)
Esculin Hydrolysis	Negative (-ve)
Fucosidase	Negative (-ve)
IgA1 protease	Negative (-ve)
Lysine decarboxylase	Variable
ONPG (β-galactosidase)	Variable
Ornithine Decarboxylase	Variable