Biochemical Test of Bacteria

Biochemical Test of Bacteria

Biochemical Test of Bacteria Biochemical reactions are very important in the identification of bacterial isolates and in the identification of different bacterial species. These tests depend on the presence of certain enzymes, such as catalase, oxidase, urease, gelatinase, etc., produced by the bacteria. Different bacteria produce varying spectra of enzymes. For example, some enzymes are necessary for the bacterium’s individual …

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Biochemical Test of Actinomyces israelii

Biochemical Test of Actinomyces israelii

Biochemical Test of Actinomyces israelii Basic Characteristics Properties (Actinomyces israelii) CAMP -ve Capsule -ve Catalase -ve Gelatin Hydrolysis -ve Gram Staining Gram +ve Hemolysis -ve Indole -ve Motility -ve MR (Methyl Red) Variable Nitrate Reduction Variable OF (Oxidative-Fermentative) Fermentative Pigment -ve Shape Branching filaments, branched rods and diphtheroidal forms Urease -ve VP (Voges Proskauer) -ve Fermentation of Cellobiose +ve DNase …

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Biochemical Test of Actinomyces israelii

Biochemical Test of Actinomyces israelii Basic Characteristics Properties (Actinomyces israelii) CAMP Negative (-ve) Capsule Non-Capsulated Catalase Negative (-ve) Flagella Negative (-ve) Gelatin Hydrolysis Negative (-ve) Gram Staining Positive (+ve) H2S Positive (+ve) Hemolysis Negative (-ve) Indole Negative (-ve) Motility Non-Motile MR (Methyl Red) Positive (+ve) Nitrate Reduction Positive (+ve) OF (Oxidative-Fermentative) Anaerobic Pigment Negative (-ve) Shape Rod Spore Non-Sporing Urease …

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