All bacteria that are oxidase-positive are aerobic and can use oxygen as a terminal electron acceptor in respiration. I am interested in whether there are oxidase-positive among facultative anaerobic bacteria.
An optional aerobic organism can live in an aerobic environment, with molecular oxygen (O2), but also able to live in different environmental conditions. An optional aerobic microorganism is naturally anaerobic but can develop in the presence of free oxygen (and not only molecular).
For example, bacteria of the genus Staphylococcus, of the family Enterobacteriaceae, are optional aerobics. They can use all the energetic (respiratory) routes or be limited to the main ones.
we do specify also : aero-anaerobic, optional anaerobic and strict aerobic, which are other sub-types of germs
Article Anaerobic bacteria in wastewater treatment plant
https://pubmed.ncbi.nlm.nih.gov/697363/
https://pubmed.ncbi.nlm.nih.gov/25592909/
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