Aerobes Obligate

Obligate aerobes are a group of microorganisms that are able to live and grow in an oxygen-air environment. They are the main participants in biological processes occurring in the air and play an important role in ecosystems.

The main difference between obligate aerobes and facultative and strict anaerobes is the need for their vital activity to require the presence of oxygen in the environment. This is because most obligate aerobes (bacteria, mycoplasmas, most algae and other microscopic organisms) require oxygen for respiration as well as for the oxidation of nutrients they use for their growth and reproduction.

Obligate aerobes include many known bacteria (for example, Bacillus subtilis, Staphylococcus aureus, Pseudomonas aeruginosa), as well as mycoplasmas (Mycoplasma pneumoniae, M. genitalium, M. hominis) and some fungi (Rhizopus nigricans, Aspergillus nidulans). Some of them are pathogens of humans and animals, causing infectious diseases (Bacillus anthracis, Staphyloccocus aureus) or allergies (Mycoplasma superinfections).

An obligate anaerobic habitat means that obligate aerobes are forced to adapt to low oxygen levels and seek other sources of energy, such as oxidizing sugars through respiratory enzymes (as do the more diverse anaerobic bacteria). Aerobic organisms have specialized oxygen uptake mechanisms to maintain an optimal respiration cycle to provide oxygen for respiration.

Although most obligate aerobacteria are disease-associated microorganisms, some may also be beneficial to humans, such as in food production (Lactobacillus acidophilus, Bifidobacterium lactis) or wastewater treatment (Schwanniomyces occidentalis) by preserving respiration