Biochemical Test of Streptococcus mutans

Biochemical Test of Streptococcus mutans

Basic Characteristics Properties (Streptococcus mutans)
Capsule Capsulated
Catalase Negative (-ve)
Gram Staining Positive (+ve)
Hemolysis Alfa Hemolysis
Motility Non-motile
OF (Oxidative-Fermentative) Facultative anaerobes
Oxidase Negative (-ve)
Shape Cocci
Spore Non-sporing
Urease Negative (-ve)
VP (Voges Proskauer) Positive (+ve)

Fermentation of

Adonitol Negative (-ve)
Arabinose Negative (-ve)
Arbutin Positive (+ve)
Cellobiose Positive (+ve)
Dulcitol Negative (-ve)
Erythritol Negative (-ve)
Galactose Positive (+ve)
Glucose Positive (+ve)
Glycerol Negative (-ve)
Glycogen Negative (-ve)
Hippurate Negative (-ve)
Inositol Negative (-ve)
Inulin Positive (+ve)
Lactose Positive (+ve)
Maltose Positive (+ve)
Mannitol Positive (+ve)
Mannose Positive (+ve)
Melibiose Variable
Raffinose Positive (+ve)
Rhamnose Negative (-ve)
Ribose Negative (-ve)
Salicin Positive (+ve)
Sorbitol Positive (+ve)
Starch Negative (-ve)
Sucrose Positive (+ve)
Trehalose Positive (+ve)
Xylose Negative (-ve)

Enzymatic Reactions

Alkaline Phosphatase Negative (-ve)
Arginine Dehydrolase Negative (-ve)
Esculin Hydrolysis Positive (+ve)
Hyalurodinase Negative (-ve)
Neuraminidase Negative (-ve)

Streptococcus mutans gram stain

Figure: Streptococcus mutans gram stain, Source: http://www.bacteriainphotos.com/

About Author

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Sagar Aryal

Sagar Aryal is a microbiologist and a scientific blogger. He attended St. Xavier’s College, Maitighar, Kathmandu, Nepal, to complete his Master of Science in Microbiology. He worked as a Lecturer at St. Xavier’s College, Maitighar, Kathmandu, Nepal, from Feb 2015 to June 2019. After teaching microbiology for more than four years, he joined the Central Department of Microbiology, Tribhuvan University, to pursue his Ph.D. in collaboration with Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Saarbrucken, Germany. He is interested in research on actinobacteria, myxobacteria, and natural products. He has published more than 15 research articles and book chapters in international journals and well-renowned publishers.

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