Biochemical Test and Identification of Serratia marcescens

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­Basic Characteristics Properties (Serratia marcescens)
Capsule Negative (-ve)
Catalase Positive (+ve)
Citrate Positive (+ve)
Flagella Positive (+ve)
Gas Variable
Gelatin Hydrolysis Positive (+ve)
Gram Staining Negative (-ve)
H2S Negative (-ve)
Indole Negative (-ve)
Motility Positive (+ve)
MR (Methyl Red) Negative (-ve)
Nitrate Reduction Positive (+ve)
OF (Oxidative-Fermentative) Facultative Anaerobes
Oxidase Negative (-ve)
Pigment Positive (+ve)
Shape Rods
Spore Negative (-ve)
Urease Positive (+ve)
VP (Voges Proskauer) Positive (+ve)
Fermentation of
Adonitol Positive (+ve)
Arabinose Negative (-ve)
Arabitol Variable
Cellobiose Negative (-ve)
DNase Positive (+ve)
Dulcitol Negative (-ve)
Erythritol Variable
Fructose Positive (+ve)
Fumarate Positive (+ve)
Galactose Positive (+ve)
Glucose Positive (+ve)
Glycerol Positive (+ve)
Lactose Negative (-ve)
Malonate Negative (-ve)
Maltose Positive (+ve)
Mannitol Positive (+ve)
Mannose Positive (+ve)
Melibiose Negative (-ve)
Mucate Negative (-ve)
MyoInositol Positive (+ve)
Raffinose Negative (-ve)
Rhamnose Negative (-ve)
Ribose Positive (+ve)
Salicin Positive (+ve)
Sorbitol Positive (+ve)
Sucrose Positive (+ve)
Tartrate Negative (-ve)
Trehalose Positive (+ve)
Xylose Negative (-ve)
Enzymatic Reactions
Acetate Utilization Variable
Aesculine Hydrolysis Positive (+ve)
Arginine Dehydrolase Negative (-ve)
Casein Hydrolysis Positive (+ve)
Esculin Hydrolysis Positive (+ve)
Lipase Positive (+ve)
Lysine decarboxylase Positive (+ve)
ONPG (β-galactosidase) Positive (+ve)
Ornithine Decarboxylase Positive (+ve)
Phenylalanine Deaminase Negative (-ve)
Tween 80 hydrolysis Positive (+ve)
Tryptophan Deaminase Negative (-ve)
Tyrosine Hydrolysis Variable

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