Biochemical Test of Haemophilus parainfluenzae

Biochemical Test of Haemophilus parainfluenzae

Biochemical Test of Haemophilus parainfluenzae

Biochemical Test of Haemophilus parainfluenzae

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)
Sorbitol 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

References

  1. Bergey’s Manual of Systematic Bacteriology Volume 2: The Proteobacteria, Part B: The Gammaproteobacteria.
  2. https://www.microbiologyresearch.org/docserver/fulltext/ijsem/28/1/ijs-28-1-20.pdf?expires=1555943745&id=id&accname=guest&checksum=62D277D20357271EE2C65A513EF17921
  3. https://www.sciencedirect.com/topics/medicine-and-dentistry/haemophilus-parainfluenzae
  4. https://jcm.asm.org/content/jcm/11/1/22.full.pdf
  5. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC275054/
  6. https://www.ncbi.nlm.nih.gov/pubmed/6979159
  7. https://www.cdc.gov/hi-disease/about/diagnosis-treatment.html

Biochemical Test of Haemophilus parainfluenzae

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