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

被引：144

作者：

Byrne, Nathalie ^{[1
]}

Strous, Marc ^{[2
]}

Crepeau, Valentin ^{[1
]}

Kartal, Boran ^{[2
]}

Birrien, Jean-Louis ^{[1
]}

Schmid, Markus ^{[2
]}

Lesongeur, Francoise ^{[1
]}

Schouten, Stefan ^{[3
]}

Jaeschke, Andrea ^{[3
]}

Jetten, Mike ^{[2
]}

Prieur, Daniel ^{[1
]}

Godfroy, Anne ^{[1
]}

机构：

[1] IFREMER, IUEM, Ctr Brest, 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

来源：

ISME JOURNAL | 2009年 / 3卷 / 01期

关键词：

anammox; micro-organisms; activity; 16S rRNA; ladderanes; hydrothermal vent; MID-ATLANTIC RIDGE; ANAMMOX BACTERIA; MARINE-SEDIMENTS; NITRATE REDUCTION; N-2; PRODUCTION; NITROGEN LOSS; OXIDATION; DIVERSITY; NITRITE; COMMUNITIES;

D O I：

10.1038/ismej.2008.72

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

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 (14)N(15)N 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.

引用

页码：117 / 123

页数：7

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