Biochemical Test of Corynebacterium diphtheriae

By Prof Walter Jaoko

Basic CharacteristicsProperties (Corynebacterium diphtheriae)
CAMPNegative (-ve)
CapsuleNon-Capsulated
CatalasePositive (+ve)
Cetrimide TestNegative (-ve)
CitrateNegative (-ve)
CoagulaseNegative (-ve)
FlagellaNon-Flagellated
GasVariable
Gelatin HydrolysisNegative (-ve)
Gram StainingPositive (+ve)
H2SPositive (+ve)
HemolysisWeak Beta hemolysis
IndoleNegative (-ve)
MotilityNon-Motile
MR (Methyl Red)Positive (+ve)
Nitrate ReductionPositive (+ve)
OF (Oxidative-Fermentative)Fermentative
OxidaseNegative (-ve)
PigmentPositive (+ve)
ShapeRod/Club Shaped
SporeNon-Sporing
UreaseNegative (-ve)
Fermentation of
ArabinosePositive (+ve)
DextrosePositive (+ve)
FructosePositive (+ve)
GalactosePositive (+ve)
GlucosePositive (+ve)
GlycogenNegative (-ve)
HippurateNegative (-ve)
LactoseNegative (-ve)
MaltosePositive (+ve)
MannitolNegative (-ve)
MannosePositive (+ve)
RaffinoseVariable
RhamnosePositive (+ve)
SalicinPositive (+ve)
StarchNegative (-ve)
SucroseNegative (-ve)
TrehaloseNegative (-ve)
XyloseNegative (-ve)
Enzymatic Reactions
Alkaline PhosphataseNegative (-ve)
Casein HydrolysisNegative (-ve)
Esculin HydrolysisNegative (-ve)
Ornithine DecarboxylaseNegative (-ve)
TelluritePositive (+ve)
Tyrosine HydrolysisNegative (-ve)