Microaerophilic organisms are a specific type of organism that requires oxygen to survive, but requires environments containing lower levels of oxygen than are present in the atmosphere (~20% concentration).
Examples include Borrelia burgdorferi, a species of spirochaete bacteria that causes Lyme disease in humans, and Helicobacter pylori, a species of proteobacteria that has been linked to peptic ulcers and some types of gastritis.
- Aerotolerant organism
- Aerobic organism
- Anaerobic organism
- Facultative anaerobic organism
- Fermentation (biochemistry)