Biochemical Test of Francisella tularensis subsp. tularensis

By Prof Walter Jaoko

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)