Presence and activity of anaerobic ammonium-oxidizing bacteria at deep-sea hydrothermal vents

Type Article
Date 2009
Language English
Author(s) Byrne Nathalie1, Strous Marc2, Crepeau Valentin1, Kartal Boran2, Birrien Jean-Louis1, Schmid Markus2, Lesongeur Francoise1, Schouten Stefan3, Jaeschke Andrea3, Jetten Mike2, Prieur Daniel1, Godfroy AnneORCID1
Affiliation(s) 1 : IUEM, Ctr Brest, IFREMER, Lab Microbiol Environm Extremes,UMR6197, F-29280 Plouzane, France.
2 : Radboud Univ Nijmegen, Inst Water & Wetland Res, Dept Microbiol, NL-6525 ED Nijmegen, Netherlands.
3 : NIOZ Royal Netherlands Inst Sea Res, Dept Marine Organ Biogeochem, Den Burg, Netherlands.
Source The ISME journal (Multidisciplinary Journal of Microbial Ecology) (1751-7362) (Nature), 2009 , Vol. 3 , N. 1 , P. 117-123
DOI 10.1038/ismej.2008.72
WOS© Times Cited 131
Keyword(s) Hydrothermal vent, Ladderanes, 16S rRNA, Activity, Micro organisms, Anammox
Abstract 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.
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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 (2009). Presence and activity of anaerobic ammonium-oxidizing bacteria at deep-sea hydrothermal vents. The ISME journal (Multidisciplinary Journal of Microbial Ecology), 3(1), 117-123. Publisher's official version : , Open Access version :