Hydrogenotroph

Hydrogenotrophs are organisms that are able to metabolize molecular hydrogen as a source of energy. An example of hydrogenotrophy is performed by carbon dioxide-reducing organisms^[1] which utilize CO₂ and H₂ to produce methane (CH₄) by the following reaction:

CO₂ + 4H₂ → CH₄ + 2H₂O

Other hydrogenotrophic metabolic pathways include acetogenesis, sulfate reduction, and other hydrogen oxidizing bacteria.^[2]

References

↑ Stams, J.M., and Plugge, C.M. (2010) The microbiology of methanogenesis. In Reay, D., Smith, P., and Van Amstel, A., eds. Methane and Climate Change, 14-26.
↑ Vianna, M.E., Holtgraewe S., Seyfarth, I., Conrads, G., and Horz, H.P. (2008) Quantitative analysis of three hydrogenotrophic microbial groups, methanogenic archaea, sulfate-reducing bacteria, and acetogenic bacteria, within plaque biofilms associated with human periodontal disease. Journal of Bacteriology, 190(10):3779-3785.

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[StamsandPlugge2010-1] Stams, J.M., and Plugge, C.M. (2010) The microbiology of methanogenesis. In Reay, D., Smith, P., and Van Amstel, A., eds. Methane and Climate Change, 14-26.

[Vianna2008-2] Vianna, M.E., Holtgraewe S., Seyfarth, I., Conrads, G., and Horz, H.P. (2008) Quantitative analysis of three hydrogenotrophic microbial groups, methanogenic archaea, sulfate-reducing bacteria, and acetogenic bacteria, within plaque biofilms associated with human periodontal disease. Journal of Bacteriology, 190(10):3779-3785.