Aerotolerant anaerobes use fermentation to produce ATP. They do not use oxygen, but they can protect themselves from reactive oxygen molecules. In contrast, obligate anaerobes can be harmed by reactive oxygen molecules.[citation needed]
There are three categories of anaerobes. Where obligate aerobes require oxygen to grow, obligate anaerobes are damaged by oxygen, aerotolerant organisms cannot use oxygen but tolerate its presence, and facultative anaerobes use oxygen if it is present but can grow without it.[citation needed]
Most aerotolerant anaerobes have superoxide dismutase and (non-catalase) peroxidase but do not have catalase.[1] More specifically, they may use a NADH oxidase/NADH peroxidase (NOX/NPR) system or a glutathione peroxidase system.[2] An example of an aerotolerant anaerobe is Cutibacterium acnes.[3]
^WI, Kenneth Todar, Madison. "Nutrition and Growth of Bacteria".{{cite web}}: CS1 maint: multiple names: authors list (link)
^Zotta, T.; Parente, E.; Ricciardi, A. (2017). "Aerobic metabolism in the genus Lactobacillus: impact on stress response and potential applications in the food industry". Journal of Applied Microbiology. 122 (4): 857–869. doi:10.1111/jam.13399.
^Achermann, Y; Goldstein, EJ; Coenye, T; Shirtliff, ME (July 2014). "Propionibacterium acnes: from commensal to opportunistic biofilm-associated implant pathogen". Clinical Microbiology Reviews. 27 (3): 419–40. doi:10.1128/CMR.00092-13. PMC 4135900. PMID 24982315.
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differentiation of obligate aerobes, obligate anaerobes, facultative anaerobes, microaerophiles, and aerotolerant organisms. For example, obligately anaerobic...
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dictate where in the mouth aerobic, anaerobic, facultative anaerobic, aerotolerant, or microaerophilic microbes grow or form biofilm. Biofilms themselves...