Difference between revisions of "Bacillus species - Overview"
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| + | |name =''Bacillus'' | ||
| + | |phylum =Firmicutes | ||
| + | |class =Bacilli | ||
| + | |order =Bacillales | ||
| + | |family =Bacillaceae | ||
| + | |genus =Bacillus | ||
| + | }} | ||
[[File:Bacillus.jpg|right|thumb|250px|<small><center> Unidentified species of Bacillus grown on Blood agar. (Microrao | [[File:Bacillus.jpg|right|thumb|250px|<small><center> Unidentified species of Bacillus grown on Blood agar. (Microrao | ||
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The bacteria are large, motile, Gram positive rods that produce endospores. They are aerobes or facultative anaerobes and are catalase positive and oxidase negative. They grow on non-enriched media. | The bacteria are large, motile, Gram positive rods that produce endospores. They are aerobes or facultative anaerobes and are catalase positive and oxidase negative. They grow on non-enriched media. | ||
| − | ''[[Bacillus anthracis]]'' colonies are up to 5mm diameter, flat, dry and grey with a ground-glass appearance. Curled outgrowths from the edge of the colony give a 'medusa head' appearance. They are non-haemolytic and can be differentiated from ''[[Bacillus cereus]]''. | + | ''[[Bacillus anthracis]]'' colonies are up to 5mm diameter, flat, dry and grey with a ground-glass appearance. Curled outgrowths from the edge of the colony give a 'medusa head' appearance. They are non-haemolytic and can be differentiated from ''[[Bacillus cereus]]'', as ''B.cereus'' is a beta-hemolytic bacterium. |
''[[Bacillus licheniformis]]'' forms dull, rough, wrinkled colonies, with hair-like outgrowths. | ''[[Bacillus licheniformis]]'' forms dull, rough, wrinkled colonies, with hair-like outgrowths. | ||
''Bacillus'' species can often tolerate adverse environmental conditions. | ''Bacillus'' species can often tolerate adverse environmental conditions. | ||
| − | [[Category: | + | <big>'''[[:Category:Bacillus_species|See here for a list of ''Bacillus'' species]]'''</big> |
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| + | {{review}} | ||
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| + | [[Category:Bacillus_species|A]] | ||
| + | [[Category:Expert_Review]] | ||
Latest revision as of 16:32, 5 July 2012
| Bacillus | |
|---|---|
| Phylum | Firmicutes |
| Class | Bacilli |
| Order | Bacillales |
| Family | Bacillaceae |
| Genus | Bacillus |
Overview
Bacillus species are mostly non-pathogenic, environmental organisms.
Characteristics
The bacteria are large, motile, Gram positive rods that produce endospores. They are aerobes or facultative anaerobes and are catalase positive and oxidase negative. They grow on non-enriched media. Bacillus anthracis colonies are up to 5mm diameter, flat, dry and grey with a ground-glass appearance. Curled outgrowths from the edge of the colony give a 'medusa head' appearance. They are non-haemolytic and can be differentiated from Bacillus cereus, as B.cereus is a beta-hemolytic bacterium. Bacillus licheniformis forms dull, rough, wrinkled colonies, with hair-like outgrowths. Bacillus species can often tolerate adverse environmental conditions.
See here for a list of Bacillus species
 |
This article has been peer reviewed but is awaiting expert review. If you would like to help with this, please see more information about expert reviewing. |
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