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Major gradients in putatively nitrifying and non-nitrifying Archaea in the deep North Atlantic

Author

Listed:
  • Hélène Agogué

    (Royal Netherlands Institute for Sea Research (Royal NIOZ), PO Box 59, 1790 AB Den Burg, Texel, The Netherlands)

  • Maaike Brink

    (Royal Netherlands Institute for Sea Research (Royal NIOZ), PO Box 59, 1790 AB Den Burg, Texel, The Netherlands)

  • Julie Dinasquet

    (Royal Netherlands Institute for Sea Research (Royal NIOZ), PO Box 59, 1790 AB Den Burg, Texel, The Netherlands)

  • Gerhard J. Herndl

    (Royal Netherlands Institute for Sea Research (Royal NIOZ), PO Box 59, 1790 AB Den Burg, Texel, The Netherlands
    Present address: Department of Marine Biology, Vienna Ecology Center, University of Vienna, 1090 Vienna, Austria.)

Abstract

Planktonic Archaea: a varied diet Crenarchaeota, single-celled planktonic Archaea, account for up to a third of all prokaryotic cells in the oceans on some estimates, and are thought to be responsible for the majority of ammonia oxidation in terrestrial and marine environments. However, recent studies have suggested that not all species are autotrophic. Using a comprehensive data set it is now shown that a significant proportion of marine crenarchaeota lack the genes required for ammonia oxidation, suggesting that they are heterotrophs, consuming organic matter as their main carbon and energy source. These results provide insight into the physiology of this important group of microorganism and its impact on global nutrient cycles.

Suggested Citation

  • Hélène Agogué & Maaike Brink & Julie Dinasquet & Gerhard J. Herndl, 2008. "Major gradients in putatively nitrifying and non-nitrifying Archaea in the deep North Atlantic," Nature, Nature, vol. 456(7223), pages 788-791, December.
    • Handle: RePEc:nat:nature:v:456:y:2008:i:7223:d:10.1038_nature07535
    DOI: 10.1038/nature07535
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