Methanothermobacter marburgensis is a
thermophilic and obligately
autotrophicmethanogenic archaeon. The type strain MarburgT was isolated from
sewage sludge in the vicinity of the city Marburg, Germany[1]. It was also detected in
hot springs. It grows in the temperature between 45 and 70 °C with optimum at 65 °C thus it is classified as
thermophile. Cells are rods with length 3 - 3.5 µm and 0.3 - 0.4 µm wide, Gram-positive and non-motile. Its genome has been sequenced.[2]
They reduce
carbon dioxide with
hydrogen into methane as the only pathway for ATP production. It does not require any organic supplements and it grows on mineral media with CO2 as a carbon source, H2 as a source of electrons, NH3 as a nitrogen source, and sulfide as a sulfur source (obligate autotroph). The metabolism of Methanothermobacter marburgensis strain Marburg has been
reconstructed in the form of an experimentally validated computer model.[3]
Ding, Xia; Yang, Wei-Jun; Min, Hang; Peng, Xiao-Tong; Zhou, Huai-Yang; Lu, Zhen-Mei (2010). "Isolation and characterization of a new strain of Methanothermobacter marburgensis DX01 from hot springs in China". Anaerobe. 16 (1): 54–59.
doi:
10.1016/j.anaerobe.2009.04.001.
ISSN1075-9964.
PMID19376257.
Rittmann, S.; Seifert, A.; Herwig, C. (Jan 2012). "Quantitative analysis of media dilution rate effects on Methanothermobacter marburgensis grown in continuous culture on H-2 and CO2". Biomass and Bioenergy. 36: 293–301.
doi:
10.1016/j.biombioe.2011.10.038.