Difference between revisions of "Clostridium species"

Revision as of 14:05, 18 May 2008

Organisms present in the soil, alimentary tract and faeces
Endospores may be present in liver and may be reactivated to cause disease
Neurotoxic clostridia, Clostridium tetani and Clostridium botulinum affect neuromuscular function but cause no tissue damage
Histotoxic clostridia cause localised lesions in tissues and may cause toxaemia
C. perfringens cause inflammatory lesions in the gastrointestinal tract and enterotoxaemia

Large Gram-positive rods
Obligate anaerobes
Fermentative, catalase negative, oxidase negative
Straight or slightly curved
Motile by flagellae
Require enriched media for growth
Produce endospores which vary in shape and location and cause bulging of mother cell

Clostridium botulinum has been implicated in equine grass sickness.
The toxin also causes botulism, a disease affecting muscle at the neuromuscular junction.

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 <big><center>[[Bacteria|'''BACK TO BACTERIA''']]</center></big>
-==Clostridia==
+===Overview===
+*Organisms present in the soil, alimentary tract and faeces
+*Endospores may be present in liver and may be reactivated to cause disease
+*Neurotoxic clostridia, ''Clostridium tetani'' and ''Clostridium botulinum'' affect neuromuscular function but cause no tissue damage
+*Histotoxic clostridia cause localised lesions in tissues and may cause toxaemia
+*''C. perfringens'' cause inflammatory lesions in the gastrointestinal tract and enterotoxaemia
+===Characteristics===
+*Large Gram-positive rods
+*Obligate anaerobes
+*Fermentative, catalase negative, oxidase negative
+*Straight or slightly curved
+*Motile by flagellae
+*Require enriched media for growth
+*Produce endospores which vary in shape and location and cause bulging of mother cell
+===Pathogenesis and pathogenicity===
+*''C. perfringens'' colonies are surrounded by a zone of double haemolysis
-* ''Clostrisium'' bacteria are Gram-positive and obligate anaerobes.
-==Species==
 ===Clostridium botulinum===