Difference between revisions of "Category:Campylobacter species"

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===Overview===
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{{frontpage
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|pagetitle =Campylobacter species
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Campylobacter bacteria are Gram-negative organisms with a characteristic spiral appearance. They live on the mucosa of the intestinal and genital tract and can be commensals or pathogens. Enteric species can cause disease in humans and other species can cause infertility and abortion in cattle and sheep.
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*Live on mucosa of intestinal and genital tract and can be commensals or pathogens
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*Enteric species cause disease in humans
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*Other species cause infertility and abortion in cattle and sheep
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<categorytree mode=pages>Campylobacter species</categorytree>
*Excreted in faeces of birds, (''C. jejuni'' and ''C. lari'') as well as pigs contaminating water and food supplies
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*''C. fetus'' restricted to bovine prepucial mucosa
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|logo = Campylobacter logo.jpg
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===Characteristics===
 
  
*Curved, Gram negative rods
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[[Category:Bacterial Organisms]]
*Polar flagellum aids motility
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[[Category:Gram_negative_bacteria]]
*Daughter cells remain joined giving gull-wing or spiral appearance
 
*Microaerophilic
 
*Sensitive to drying
 
*Thermophilic species - ''C. jejuni, C. coli''
 
*Non-thermophilic species e.g. ''C. fetus''
 
*Grow on enriched selective media e.g. Skirrow agar in 1-10% carbon dioxide and 5-10% oxygen tension
 
*''C. jejuni'' requires increased temperatures for growth
 
*Many grow on MacConkey
 
*Oxidase positive, non-fermentative
 
*''C. fetus'' subspecies ''venerealis'' and subspecies ''fetus'' have small, round, smooth, translucent colonies
 
*''C. jejuni'' has small, flat, grey colonies with watery appearance
 
*Smears stained with dilute carbol fuschin for 4 minutes
 
 
 
 
===Pathogenesis and pathogenicity===
 
 
 
*''C. fetus'' subspecies ''fetus'' and subspecies ''venerealis'' possess a microcapsule (S layer) which resists phagocytosis and serum-mediated destruction and enhances survival in the genital tract
 
*Antigens of S layer undergoes antigenic shifts in ''C. fetus'' subspecies ''venerealis'', allowing persistence in the host
 
*''C. jejuni'' attaches and invades host enterocytes and produces enterotoxin-like substances
 
*Flagellae of ''C. jejuni'' required for colonisation
 
 
 
<big>'''''<ncl style=bullet maxdepth=2 headings=bullet headstart=2 showcats=1 showarts=1>Category:{{PAGENAME}}</ncl></big>
 
 
 
[[Category:Bacteria]][[Category:Gram_negative_bacteria]]
 
 
[[Category:Rods]]
 
[[Category:Rods]]

Latest revision as of 15:09, 14 December 2010

Campylobacter species

Campylobacter bacteria are Gram-negative organisms with a characteristic spiral appearance. They live on the mucosa of the intestinal and genital tract and can be commensals or pathogens. Enteric species can cause disease in humans and other species can cause infertility and abortion in cattle and sheep.

Pages in category "Campylobacter species"

The following 5 pages are in this category, out of 5 total.