Geomicrobiology
Facultative anaerobes are microorganisms that can thrive in both the presence and absence of oxygen, allowing them to adapt to varying environmental conditions. This versatility enables them to perform aerobic respiration when oxygen is available, but switch to anaerobic processes, such as fermentation, when oxygen is scarce. Their ability to utilize multiple metabolic pathways makes them important players in biogeochemical cycles, particularly those involving nitrogen, sulfur, and phosphorus.
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