Methanothermobacter is a genus of archaeans in the family Methanobacteriaceae. The species within this genus are thermophilic and grow best at temperatures between 55 ðC and 65 ðC. They are methanogens; they use carbon dioxide and hydrogen as substrates to produce methane for energy.
The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI).
The metabolism of Methanothermobacter thermautotrophicus has been reconstructed in the form of experimentally validated computer models for the two strains Z-245 and ÃÂH.