Biochemical Test and Identification of Streptococcus pyogenes

­Basic Characteristics Properties (Streptococcus pyogenes)
CAMPNegative (-ve)
CapsuleCapsulated
CatalaseNegative (-ve)
Gram StainingGram Positive (+ve)
HemolysisBeta Hemolytic
MotilityNon-Motile
OF (Oxidative-Fermentative)Facultative Anaerobes
PYRPositive (+ve)
ShapeCocci
SporeNon-Sporing
UreaseNegative (-ve)
VP (Voges Proskauer)Negative (-ve)
6.5% NaCl GrowthNegative (-ve)

Fermentation of

AdonitolNegative (-ve)
ArabinoseNegative (-ve)
ArabitolNegative (-ve)
CellobioseVariable
DulcitolNegative (-ve)
ErythritolNegative (-ve)
FructosePositive (+ve)
GalactosePositive (+ve)
GlucosePositive (+ve)
GlycerolVariable
GlycogenVariable
HippurateNegative (-ve)
LactosePositive (+ve)
MaltosePositive (+ve)
MannitolNegative (-ve)
MelibioseNegative (-ve)
RaffinoseNegative (-ve)
RiboseNegative (-ve)
SalicinPositive (+ve)
SorbitolNegative (-ve)
SucrosePositive (+ve)
TrehalosePositive (+ve)
XyloseNegative (-ve)

Enzymatic Reactions

Acetoin ProductionNegative (-ve)
Alkaline PhosphatasePositive (+ve)
Arginine DehydrolasePositive (+ve)
Esculin HydrolysisVariable
HyalurodinasePositive (+ve)
NeuraminidasePositive (+ve)

2 thoughts on “Biochemical Test and Identification of Streptococcus pyogenes”

  1. Hi.
    Could you please clarify the fermentation of lactose by S.pyogenes as mentioned in the table above.
    According to experiments,MAC with or without salt hasnt shown any postive growth of the bacteria.
    What is this result based on?
    Thanks

    Reply
    • MAC is favorable for growing gram- rods and tends to inhibit gram + cocci, so it is not surprising that S. pyogenes will not grow on it. If you have a sugar broth of lactose, S. pyogenes will ferment it, which is indicated by turning the tube yellow.

      Reply

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