Some of the heterotrophic bacteria (anaerobic) which are harmless to humans are Pelobacter, Malonomonas, and Desulfurella.
Heterotrophic bacteria may be defined as microorganisms that cannot synthesize their own food, instead of bringing nutrition from other sources of organic carbon, mainly plant or animal matter.
The heterotrophic bacteria which are harmless to humans can not able to cause disease and infection. Since, they help in many ways such as the production of biogas, providing inorganic nutrients to plants, etc.
Therefore, some of the heterotrophic bacteria (anaerobic) which are harmless to humans are Pelobacter, Malonomonas, and Desulfurella.
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