These bacteria thrive in food, soil, or water. Autotrophic bacteria create their own food through photosynthesis or chemosynthesis. These processes use sunlight, water, and carbon dioxide or ...

A second autotrophic pathway (Arnon–Buchanan cycle) uses a reductive citric acid cycle and is found in anaerobic or microaerophilic bacteria and archaea. A third autotrophic pathway (Wood ...