Pathogenic species clostridia: 1 - Cl. perfringens; 2 - Cl. oedematiens; 3 - Cl. septicum: 4 - Cl. histolyticum.

Clostridium - a number of grampolaugitionah bacteria-anaerobov family Bacillaceae. Pathogenic clostridia (Fig) - pathogens gas gangrene (Clostridium perfringens, Cl. oedematiens, Cl. septicum, Cl. histolyticura and others), wand tetanus (Cl. tetani) and the agent of botulism (Clostridium Botulinum). Large anaerobic spore-forming bacilli. Most species of Clostridium mobile (except for Cl. perfringens and Cl. novyi). Clostridium distinguished intensive metabolism and high degree of variability. Many species of Clostridium form enzymes (e.g. glycosidase and hyaluronidase) or fermented carbohydrates With the formation of a number of alcohols, ketones and organic acids. Some Clostridium absorb atmospheric nitrogen.
Pathogenic clostridia are soil saprophytes. They emit strong exotoxins that affect the Central nervous system, and the enzymes that destroy connective tissue (the factor distribution ), and hemolysins. Clostridium cause wound infections (tetanus, gas gangrene) and food diseases (botulism). Some types of clostridia live in the intestines of humans and animals, without forming toxins (causing botulism and tetanus), so their disputes are often found in the faeces of animals and in those places where the soil fertilized with manure.
Clostridium Botulinum is often propagated in contaminated meat and fish products, highlighting botulinum taxirank. To non-pathogenic to clostridia is Cl. butyricum. Cm. also Anaerobes, Bacteria.