Difference between revisions of "Bacillus species - Overview"
Jump to navigation
Jump to search
| (3 intermediate revisions by 2 users not shown) | |||
| Line 1: | Line 1: | ||
| − | {{ | + | {{review}} |
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | }} | ||
[[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 | ||
| Line 24: | Line 16: | ||
| − | + | [[Category:To_Do_-_AimeeHicks]][[Category:Bacillus_species|A]] | |
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | [[Category:Bacillus_species|A]] | ||
[[Category:Expert_Review]] | [[Category:Expert_Review]] | ||
Revision as of 11:10, 23 July 2010
 |
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. |
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.