| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Presence and activity of anaerobic ammonium-oxidizing bacteria at deep-sea hydrothermal vents
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| Autores: |
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
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| Data: |
2009
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| Ano: |
2009
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| Palavras-chave: |
Hydrothermal vent
Ladderanes
16S rRNA
Activity
Micro organisms
Anammox
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| Resumo: |
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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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
http://archimer.ifremer.fr/doc/2009/publication-6921.pdf
DOI:10.1038/ismej.2008.72
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| Editor: |
Nature
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| Relação: |
http://archimer.ifremer.fr/doc/00000/6921/
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| Formato: |
application/pdf
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| Fonte: |
The ISME journal (Multidisciplinary Journal of Microbial Ecology) (1751-7362) (Nature), 2009 , Vol. 3 , N. 1 , P. 117-123
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| Direitos: |
2009 Nature Publishing Group
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