Clostridium perfringens- An Overview

Clostridium perfringens

Image Source: Nanobugs. Habitat of Clostridium perfringens Clostridium perfringens are isolated from fecal specimens from humans and animals. They are an inhabitant of human normal intestinal flora. They are present in nature and can be found as a normal component … Read more

Clostridium perfringens- Pathogenesis, Clinical Features

Clostridium perfringens- Pathogenesis, Clinical Features

Clostridium perfringens- Pathogenesis, Clinical Features Clostridium perfringens (previously named Clostridium welchii) is a Gram-positive, rod-shaped, anaerobic, spore-forming pathogenic bacterium, which is found commonly in decaying vegetation and soils.  Along with many environmental sources, it is also found in the intestines of … Read more

Morphology of Clostridium perfringens

Morphology of Clostridium perfringens

Some of the characteristics are: Clostridium perfringens is large rectangular gram-positive bacilli with rounded or truncated ends. It is pleomorphic with straight or curved rods. Size is about 3-8 µm X 0.4-1.2 µm. It is capsulated, non-motile and non-flagellated pathogenic … Read more

Biochemical Test of Clostridium tetani

Biochemical Test of Clostridium tetani

Some of the characteristics are as follows: Basic Characteristics Properties (Clostridium tetani) Capsule Negative (-ve) Catalase Negative (-ve) Flagella Peritrichous Gas Positive (+ve) Gelatin Hydrolysis Positive (+ve) Gram Staining Gram-stain-positive, but become Gram-stain-negative after approximately 24 h incubation. Growth in … Read more

Biochemical Test of Clostridium botulinum

Biochemical Test of Clostridium botulinum

(Type A and proteolytic strains of types B and F) Basic Characteristics Properties (Clostridium botulinum) Ammonia Production Positive (+ve) 20% Bile Negative (-ve) Capsule Negative (-ve) Catalase Negative (-ve) Flagella Peritrichous Gelatin Hydrolysis Positive (+ve) Gram Staining Gram-positive H2S Positive … Read more

Biochemical Test of Clostridium perfringens

Biochemical Test of Clostridium perfringens

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 … Read more

Biochemical Test of Clostridium difficile

Biochemical Test of Clostridium difficile

Biochemical Test of Clostridium difficile ­Basic Characteristics Properties (Clostridium difficile) Capsule Capsulated Catalase Negative (-ve) Flagella Flagellated Gelatin Hydrolysis Positive (+ve) Gram Staining Positive (+ve) H2S Positive (+ve) Hemolysis Negative (-ve) Indole Negative (-ve) Motility Motile Nitrate Reduction Negative (-ve) … Read more

Cultural characteristics of Clostridium perfringens

Cultural characteristics of Clostridium perfringens

Cultural characteristics of Clostridium perfringens It is an anaerobic bacteria but can grow under micro-aerophilic condition. They form large, translucent, flat and filamentous colonies with irregular edges. PH: 5.5 to 8.0 (Average PH: 7.2) Temperature: 20°C to 50°C (Average: 37°C) … Read more

Habitat of Clostridium perfringens

Clostridium perfringens

Habitat of Clostridium perfringens Clostridium perfringens are isolated from fecal specimens from human and animals. They are an inhabitant of human normal intestinal flora. They are present in nature and can be found as a normal component of decaying vegetation, … Read more