Methanothermobacter thermautotrophicus

Methanothermobacter thermautotrophicus is a type of archaea, which are single-celled prokaryotic organisms distinct from bacteria and eukaryotes. These organisms are known for their ability to thrive in extreme environments. Specifically, M. thermautotrophicus is a methanogen, meaning it produces methane gas as a metabolic byproduct.1

Methanogens are found in anaerobic environments such as marshes, hot springs, and the digestive tracts of animals. M. thermautotrophicus utilizes carbon dioxide as an electron acceptor and hydrogen as an electron donor to yield methane. This process is crucial in anaerobic decomposition and contributes to global methane emissions. Archaea, in general, possess unique molecular characteristics, including ether-linked fatty acids in their cell membranes and distinct RNA polymerases, setting them apart from bacteria.123