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Hydrogen is an energy source for hydrothermal vent symbioses
Petersen, J.M.; Zielinski, F.U.; Pape, T.; Seifert, R.; Moraru, C.; Amann, R.; Hourdez, S.; Girguis, P.R.; Wankel, S.D.; Barbe, V.; Pelletier, E.; Fink, D.; Borowski, C.; Bach, W.; Dubilier, N. (2011). Hydrogen is an energy source for hydrothermal vent symbioses. Nature (Lond.) 476(7359): 176-180. http://dx.doi.org/10.1038/nature10325
In: Nature: International Weekly Journal of Science. Nature Publishing Group: London. ISSN 0028-0836; e-ISSN 1476-4687, more
Peer reviewed article  
Available in  Authors 
Keywords
    Chemical elements > Nonmetals > Atmospheric gases > Hydrogen
    Hydrothermal vents
    Interspecific relationships > Symbiosis
    Metabolism > Energy metabolism
    Microorganisms > Bacteria
    Bathymodiolus Kenk & B. R. Wilson, 1985 [WoRMS]; Bathymodiolus puteoserpentis Cosel, Métivier & Hashimoto, 1994 [WoRMS]
    Marine/Coastal
Author keywords
    Bathymodiolus puteoserpentis
Authors  Top 
  • Petersen, J.M.
  • Zielinski, F.U.
  • Pape, T.
  • Seifert, R.
  • Moraru, C.
  • Amann, R.
  • Hourdez, S.
  • Girguis, P.R.
  • Wankel, S.D.
  • Barbe, V.
  • Pelletier, E.
  • Fink, D.
  • Borowski, C.
  • Bach, W.
  • Dubilier, N.
Abstract
    The discovery of deep-sea hydrothermal vents in 1977 revolutionized our understanding of the energy sources that fuel primary productivity on Earth. Hydrothermal vent ecosystems are dominated by animals that live in symbiosis with chemosynthetic bacteria. So far, only two energy sources have been shown to power chemosynthetic symbioses: reduced sulphur compounds and methane. Using metagenome sequencing, single-gene fluorescence in situ hybridization, immunohistochemistry, shipboard incubations and in situ mass spectrometry, we show here that the symbionts of the hydrothermal vent mussel Bathymodiolus from the Mid-Atlantic Ridge use hydrogen to power primary production. In addition, we show that the symbionts of Bathymodiolus mussels from Pacific vents have hupL, the key gene for hydrogen oxidation. Furthermore, the symbionts of other vent animals such as the tubeworm Riftia pachyptila and the shrimp Rimicaris exoculata also have hupL. We propose that the ability to use hydrogen as an energy source is widespread in hydrothermal vent symbioses, particularly at sites where hydrogen is abundant.
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