Biocheminsider

By Prof Walter Jaoko Basic Characteristics Properties (Helicobacter pylori) Capsule Non-Capsulated Catalase Positive (+ve) Flagella Flagellated Glycine (1%) Tolerance Negative (-ve) Gram Staining Negative (-ve) Growth at 25, 30 and 45°C Negative (-ve) Growth at 35 and 40°C Positive (+ve) Growth at 0.5 and 0.75 % NaCl Positive (+ve) Growth at 1.00 and 1.25 % … Read more

By Prof Walter Jaoko Basic Characteristics Properties (Hafnia alvei) Capsule Non-Capsulated Catalase Positive (+ve) Citrate Positive (+ve) Flagella Flagellated Gas from Glucose Positive (+ve) Gelatin Hydrolysis Negative (-ve) Gram Staining Negative (-ve) Growth in KCN Positive (+ve) H2S Negative (-ve) Indole Negative (-ve) Motility Motile MR (Methyl Red) Variable Nitrate Reduction Positive (+ve) OF (Oxidative-Fermentative) … Read more

By Prof Walter Jaoko Basic Characteristics Properties (Haemophilus parainfluenzae) Capsule Variable Catalase Variable Gas Variable Gram Staining Gram-negative (-ve) H2S Positive (+ve) Hemolysis Negative (-ve) Indole Variable Motility Negative (-ve) Nitrate Reduction Positive (+ve) Nitrite Reduction Positive (+ve) Oxidase Positive (+ve) Shape Small, pleomorphic rods, usually with long, filamentous forms. Urease Variable V-factor requirement Positive … Read more

By Prof Walter Jaoko Basic Characteristics Properties (Haemophilus aegyptius) Capsule Negative (-ve) Catalase Positive (+ve) Gas Negative (-ve) Gram Staining .Gram-negative H2S Negative (-ve) Hemolysis Negative (-ve) Indole Negative (-ve) Motility Negative (-ve) Nitrate Reduction Positive (+ve) Nitrite Reduction Negative (-ve) Oxidase Positive (+ve) Shape Long slender rods Urease Positive (+ve) V-factor requirement Positive (+ve) Fermentation … Read more

By Prof Walter Jaoko Basic Characteristics Properties (Fusobacterium necrophorum) Bile Growth Variable Capsule Negative (-ve) Catalase Negative (-ve) Flagella Negative (-ve) Gas Positive (+ve) Gelatin Hydrolysis Variable Gram Staining Gram-negative bacteria H2S Positive (+ve) Hemolysis Positive (+ve) (alpha- and beta-hemolysis may be observed) Indole Positive (+ve) Methylene Blue Reduction Positive (+ve) Motility Negative (-ve) MR (Methyl … Read more

By Prof Walter Jaoko Basic Characteristics Properties (Francisella tularensis subsp. tularensis) Capsule Positive (+ve) Catalase Positive (+ve) Flagella Negative (-ve) Gas Negative (-ve) Gelatin Hydrolysis Negative (-ve) Gram Staining Faintly stained Gram-negative H2S (in cysteine-supplemented medium) Positive (+ve) Indole Negative (-ve) Motility Negative (-ve) Nitrate Reduction Negative (-ve) NH3 produced in liquid media Negative (-ve) Oxidase Negative Shape … Read more

By Prof Walter Jaoko Basic Characteristics Properties (Edwardsiella tarda) Catalase Positive (+ve) Citrate Negative (-ve) Flagella Peritrichous Gas Positive (+ve) Gelatin Hydrolysis Negative (-ve) Gram Staining Gram-negative Growth in KCN Negative (-ve) H2S Positive (+ve) Indole Positive (+ve) Motility Positive (+ve) MR (Methyl Red) Positive (+ve) Nitrate Reduction Positive (+ve) Oxidase Negative (-ve) Shape Straight … Read more

By Prof Walter Jaoko Basic Characteristics Properties (Corynebacterium diphtheriae) CAMP Negative (-ve) Capsule Non-Capsulated Catalase Positive (+ve) Cetrimide Test Negative (-ve) Citrate Negative (-ve) Coagulase Negative (-ve) Flagella Non-Flagellated Gas Variable Gelatin Hydrolysis Negative (-ve) Gram Staining Positive (+ve) H2S Positive (+ve) Hemolysis Weak Beta hemolysis Indole Negative (-ve) Motility Non-Motile MR (Methyl Red) Positive … Read more

By Prof Walter Jaoko Basic Characteristics Properties (Clostridium perfringens) 20% Bile Positive (+ve) Capsule Positive (+ve) Catalase Negative (-ve) Flagella Negative (-ve) Gas Positive (+ve) Gelatin Hydrolysis Positive (+ve) Gram Staining Gram-positive Hemolysis Positive (+ve) Indole Negative (-ve) Motility Negative (-ve) Nitrate Reduction Variable Oxidase Negative (-ve) Shape Rod shaped; straight rods with blunt ends … Read more