Biochemical Test of Francisella tularensis subsp. tularensis

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Last Updated on February 4, 2021 by Sagar Aryal

Image Source: New York State Health Department

Some of the characteristics are as follows:

Basic CharacteristicsProperties (Francisella tularensis subsp. tularensis)
CapsulePositive (+ve)
CatalasePositive (+ve)
FlagellaNegative (-ve)
GasNegative (-ve)
Gelatin HydrolysisNegative (-ve)
Gram StainingFaintly stained Gram-negative
H2S (in cysteine-supplemented medium)Positive (+ve)
IndoleNegative (-ve)
MotilityNegative (-ve)
Nitrate ReductionNegative (-ve)
NH3 produced in liquid mediaNegative (-ve)
OxidaseNegative
ShapeShort, rod-shaped or coccoid
SporeNegative (-ve)
Sodium ricinoleate solubilityPositive (+ve)
UreaseNegative (-ve)

Fermentation of

GlucosePositive (+ve)
GlycerolPositive (+ve)
LactoseNegative (-ve)
MaltosePositive (+ve)
SucroseNegative (-ve)

Enzymatic Reactions

Beta-LactamasePositive (+ve)
Citrulline ureidase (CTU)Positive (+ve)

References

  1. Bergey’s Manual of Systematic Bacteriology Volume 2: The Proteobacteria, Part B: The Gammaproteobacteria.
  2. https://www.health.ny.gov/guidance/oph/wadsworth/francisella_tularensis.pdf
  3. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3352279/
  4. https://catalog.hardydiagnostics.com/cp_prod/Content/hugo/Francisella.htm
  5. https://jcm.asm.org/content/jcm/30/1/172.full.pdf
  6. https://www.ppdictionary.com/bacteria/gnbac/tularensis.htm
  7. http://wildpro.twycrosszoo.org/S/0zM_Gracilicutes/francisella/Francisella_tularensis_LitReps/Francisella_tularensis.htm
  8. https://cmr.asm.org/content/15/4/631
  9. http://www.austincc.edu/microbio/2993x/ft.pdf\
  10. https://www.ncbi.nlm.nih.gov/pubmed/7510445

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