Biochemical Test of Haemophilus parainfluenzae

Biology Educational Videos

Last Updated on February 4, 2021 by Sagar Aryal

Biochemical Test of Haemophilus parainfluenzae

Some of the characteristics are as follows:

Basic Characteristics

Properties (Haemophilus parainfluenzae)

CapsuleVariable
CatalaseVariable
GasVariable
Gram StainingGram-negative (-ve)
H2SPositive (+ve)
HemolysisNegative (-ve)
IndoleVariable
MotilityNegative (-ve)
Nitrate ReductionPositive (+ve)
Nitrite ReductionPositive (+ve)
OxidasePositive (+ve)
ShapeSmall, pleomorphic rods, usually with long, filamentous forms.
UreaseVariable
V-factor requirementPositive (+ve)

Fermentation of

AdonitolNegative (-ve)
ArabinoseNegative (-ve)
CellobioseNegative (-ve)
DulcitolNegative (-ve)
ErythritolNegative (-ve)
FructosePositive (+ve)
GalactosePositive (+ve)
GlucosePositive (+ve)
GlycerolVariable
InositolNegative (-ve)
InulinNegative (-ve)
LactoseNegative (-ve)
MaltosePositive (+ve)
MannitolNegative (-ve)
MannosePositive (+ve)
MelibioseNegative (-ve)
RaffinoseVariable
RhamnoseNegative (-ve)
SalicinNegative (-ve)
SorbitolNegative (-ve)
SorboseNegative (-ve)
SucrosePositive (+ve)
TrehaloseNegative (-ve)
XyloseNegative (-ve)

Enzymatic Reactions

Alkaline PhosphatasePositive (+ve)
Arginine DihydrolaseNegative (-ve)
Esculin HydrolysisNegative (-ve)
FucosidaseNegative (-ve)
IgA1 proteaseNegative (-ve)
Lysine decarboxylaseVariable
ONPG (β-galactosidase)Variable
Ornithine DecarboxylaseVariable

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

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.