Difference between revisions of "Category:Bacillus species"
Jump to navigation
Jump to search
| Line 30: | Line 30: | ||
[[Category:Bacteria]][[Category:Gram_positive_bacteria]] | [[Category:Bacteria]][[Category:Gram_positive_bacteria]] | ||
| + | [[Category:Rods]] | ||
Revision as of 12:40, 12 May 2010
Overview
- Mostly non-pathogenic environmental organisms
- Bacillus anthracis causes anthrax
- Anthrax is a severe disease affecting all mammals worldwide
- Ruminants are highly susceptible to anthrax, dying of a septicaemic form
- Pigs and horses are moderately susceptible, but carnivores are fairly resistant
- Bacillus licheniformis may cause shoradic abortions in cattle and sheep
- Bacillus cereus causes food poisoning in humans and mastitis in cows
Characteristics
- Large, Gram positive rods
- Produce endospores
- Aerobes or facultative anaerobes
- Grow on non-enriched media
- Motile
- Catalase positive, oxidase negative
- Bacillus anthracis colonies are up to 5mm diameter, flat, dry, grey, with a ground-glass appearance; curled outgrowths from the edge of the colony give a 'medusa head' appearance; non-haemolytic (differentiate from Bacillus cereus)
- Bacillus licheniformis forms dull, rough, wrinkled colonies, with hair-like outgrowths
- Biochemical tests for identification
- Can often tolerate adverse environmental conditions
<ncl style=bullet maxdepth=2 headings=bullet headstart=2 showcats=1 showarts=1>Category:Bacillus species</ncl>
- CAR bacillus in URT infection in cattle and URT infection in rabbits
Pages in category "Bacillus species"
The following 6 pages are in this category, out of 6 total.