FN Archimer Export Format PT J TI Presence and activity of anaerobic ammonium-oxidizing bacteria at deep-sea hydrothermal vents BT AF BYRNE, Nathalie STROUS, Marc CREPEAU, Valentin KARTAL, Boran BIRRIEN, Jean-Louis SCHMID, Markus LESONGEUR, Francoise SCHOUTEN, Stefan JAESCHKE, Andrea JETTEN, Mike PRIEUR, Daniel GODFROY, Anne AS 1:1;2:2;3:1;4:2;5:1;6:2;7:1;8:3;9:3;10:2;11:1;12:1; FF 1:;2:;3:PDG-DOP-DCB-EEP-LMEE;4:;5:;6:;7:PDG-DOP-DCB-EEP-LMEE;8:;9:;10:;11:;12:PDG-DOP-DCB-EEP-LMEE; C1 IUEM, Ctr Brest, IFREMER, Lab Microbiol Environm Extremes,UMR6197, F-29280 Plouzane, France. Radboud Univ Nijmegen, Inst Water & Wetland Res, Dept Microbiol, NL-6525 ED Nijmegen, Netherlands. NIOZ Royal Netherlands Inst Sea Res, Dept Marine Organ Biogeochem, Den Burg, Netherlands. C2 UBO, FRANCE UNIV RADBOUD NIJMEGEN, NETHERLANDS INST SEA RESEARCH (NIOZ), NETHERLANDS IFREMER, FRANCE SI BREST SE PDG-DOP-DCB-EEP-LMEE IN WOS Ifremer jusqu'en 2018 copubli-france copubli-europe copubli-univ-france IF 6.397 TC 131 TU Centre national de la recherche scientifique Institut de recherche pour le développement Institut français de recherche pour l'exploitation de la mer Service Hydrographique et Océanographique de la Marine Université de Bretagne Occidentale Université de Bretagne-Sud UR https://archimer.ifremer.fr/doc/2009/publication-6921.pdf LA English DT Article CR EXOMAR MOMARDREAM-NAUT1-NAUT2 MOMARETO BO Unknown Pourquoi pas ? DE ;Hydrothermal vent;Ladderanes;16S rRNA;Activity;Micro organisms;Anammox AB Recent studies indicate that ammonia is an important electron donor for the oxidation of fixed nitrogen, both in the marine water column and sediments. This process, known as anammox, has so far only been observed in a large range of temperature habitats. The present study investigated the role of anammox in hydrothermal settings. During three oceanographic expeditions to the Mid-Atlantic Ridge, hydrothermal samples were collected from five vent sites, at depths ranging from 750 to 3650m from cold to hot habitats. Evidence for the occurrence of anammox in these particular habitats was demonstrated by concurrent surveys, including the amplification of 16S rRNA gene sequences related to known anammox bacteria, ladderanes lipids analysis and measurement of a (NN)-N-14-N-15 dinitrogen production in isotope-pairing experiments at 60 and 85 degrees C. Together these results indicate that new deep-branching anammox bacteria may be active in these hot habitats. PY 2009 SO The ISME journal (Multidisciplinary Journal of Microbial Ecology) SN 1751-7362 PU Nature VL 3 IS 1 UT 000262297400010 BP 117 EP 123 DI 10.1038/ismej.2008.72 ID 6921 ER EF