Biochemical Test of Streptococcus agalactiae

Biochemical Test of Streptococcus agalactiae

Basic Characteristics Properties (Streptococcus agalactiae)
CAMP Positive (+ve)
Capsule Positive (+ve)
Catalase Negative (-ve)
Coagulase Negative (-ve)
Flagella Non-flagellated
Gram Staining Positive (+ve)
Hemolysis Beta Hemolysis
Motility Non-motile
OF (Oxidative-Fermentative) Facultative anaerobes
Oxidase Negative (-ve)
PYR Negative (-ve)
Shape Cocci
Spore Non-sporing
Urease Negative (-ve)
VP (Voges Proskauer) Variable

Fermentation of

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

Enzymatic Reactions

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

Streptococcus agalactiae

Streptococcus agalactiae

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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