Role for urea in nitrification by polar marine Archaea

  title={Role for urea in nitrification by polar marine Archaea},
  author={Laura Alonso-S{\'a}ez and Alison S. Waller and Daniel R. Mende and Kevin Bakker and Hanna Farnelid and Patricia L. Yager and Connie Lovejoy and J. E. Tremblay and Marianne Potvin and Friederike Heinrich and Marta Estrada and Lasse Riemann and Peer Bork and Carlos Pedr{\'o}s-Ali{\'o} and Stefan Bertilsson},
  journal={Proceedings of the National Academy of Sciences},
  pages={17989 - 17994}
Despite the high abundance of Archaea in the global ocean, their metabolism and biogeochemical roles remain largely unresolved. We investigated the population dynamics and metabolic activity of Thaumarchaeota in polar environments, where these microorganisms are particularly abundant and exhibit seasonal growth. Thaumarchaeota were more abundant in deep Arctic and Antarctic waters and grew throughout the winter at surface and deeper Arctic halocline waters. However, in situ single-cell activity… 

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