Laura Alonso-Sáez Alison S. Waller Daniel R. Mende Kevin Bakker Hanna Farnelid Patricia L. Yager Connie Lovejoy Jean-Éric Tremblay Marianne Potvin Friederike Heinrich Marta Estrada Lasse Riemann Peer Bork Carlos Pedrós-Alió and Stefan Bertilsson. Role for urea in nitrification by polar marine Archaea. PNAS 2012 17989-17994
Symbiotic relationships are widespread in nature and are fundamental for ecosystem functioning and the evolution of biodiversity. In marine environments photosymbiosis with microalgae is best known for sustaining benthic coral reef ecosystems. Despite the importance of oceanic microbiota in global ecology and biogeochemical cycles symbioses are poorly characterized in open ocean plankton. Here we describe a widespread symbiotic association between Acantharia biomineralizing microorganisms t
