The bacteria in our intestinal tract play many essential roles in maintaining our health and metabolism. Keeping these organisms happy and striking a good balance among species is therefore very important to remaining healthy. Many of these bacteria have special mechanisms by which they can switch from aerobic respiration (using oxygen) to anaerobic respiration (without using oxygen) depending on their environment.
Click here for original story, Researchers investigate the role of sulfides in aerobic/anaerobic switching in bacteria
Source: Phys.org