- Source: Methanothermobacter marburgensis
Methanothermobacter marburgensis is a thermophilic and obligately autotrophic methanogenic archaeon. The type strain MarburgT was isolated from sewage sludge in the vicinity of the city Marburg, Germany. 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.
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.
References
Further reading
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. ISSN 1075-9964. PMID 19376257.
Duin, Evert C.; Prakash, Divya; Brungess, Charlene (2011). "Methyl-Coenzyme M Reductase from Methanothermobacter marburgensis". Methods in Methane Metabolism, Part A. Methods in Enzymology. Vol. 494. pp. 159–187. doi:10.1016/B978-0-12-385112-3.00009-3. ISBN 9780123851123. ISSN 0076-6879. PMID 21402215.
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.
Kaster, Anne-Kristin; Goenrich, Meike; Seedorf, Henning; Liesegang, Heiko; Wollherr, Antje; Gottschalk, Gerhard; Thauer, Rudolf K. (18 February 2011). Lowe, Todd M. (ed.). "More Than 200 Genes Required for Methane Formation from H2 and CO2 and Energy Conservation Are Present in Methanothermobacter marburgensis and Methanothermobacter thermautotrophicus". Archaea. 2011: 23. doi:10.1155/2011/973848. ISSN 1472-3646. PMC 3087415. PMID 21559116. 973848.
Vitt, Stella; Ma, Kesen; Warkentin, Eberhard; Moll, Johanna; Pierik, Antonio J.; Shima, Seigo; Ermler, Ulrich (29 July 2014). "The F-420-Reducing [NiFe]-Hydrogenase Complex from Methanothermobacter marburgensis, the First X-ray Structure of a Group 3 Family Member". Journal of Molecular Biology. 426 (15): 2813–2826. doi:10.1016/j.jmb.2014.05.024. PMID 24887099.
External links
LPSN
"Methanothermobacter marburgensis". The Encyclopedia of Life.
Type strain of Methanothermobacter marburgensis at BacDive - the Bacterial Diversity Metadatabase