Isolation of an autotrophic ammonia-oxidizing marine archaeon

Martin Könneke, Anne E. Bernhard, José R. de la Torre, Christopher B. Walker, John B. Waterbury and David A. Stahl ()
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Martin Könneke: University of Washington
Anne E. Bernhard: University of Washington
José R. de la Torre: University of Washington
Christopher B. Walker: University of Washington
John B. Waterbury: Woods Hole Oceanographic Institute
David A. Stahl: University of Washington

Nature, 2005, vol. 437, issue 7058, 543-546

Abstract: In from the cold The marine Crenarchaeota, members of the bacteria-like Archaea that thrive in the cold, are the dominant bacterioplankton in the world's oceans. They play a major role in global biogeochemical cycles, yet since their discovery over a decade ago their physiology has remained a mystery, largely because it has not been possible to grow them in lab cultures. The isolation of one of these elusive organisms is now reported: it turns out to be a nitrifier, obtaining energy from the oxidation of ammonia to nitrite. Similarity of genes implicated in nitrification between this isolate and as yet uncultured terrestrial Archaea suggests that the capacity for nitrification is widely distributed among non-thermophilic Crenarchaeota in both marine and terrestrial provinces. Based on the metabolism of this isolate, it seems that the marine Crenarchaeota must play an important role in global carbon and nitrogen cycles.

Date: 2005
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DOI: 10.1038/nature03911

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