Details

Autor(en) / Beteiligte

• Michaelis, Walter
• Seifert, Richard
• Nauhaus, Katja
• Treude, Tina
• Thiel, Volker
• Blumenberg, Martin
• Knittel, Katrin
• Gieseke, Armin
• Peterknecht, Katharina
• Pape, Thomas
• Boetius, Antje
• Amann, Rudolf
• Jørgensen, Bo Barker
• Widdel, Friedrich
• Peckmann, Jörn
• Pimenov, Nikolai V.
• Gulin, Maksim B.

Titel

Microbial Reefs in the Black Sea Fueled by Anaerobic Oxidation of Methane

Ist Teil von

• Science (American Association for the Advancement of Science), 2002-08, Vol.297 (5583), p.1013-1015

Ort / Verlag

United States: American Association for the Advancement of Science

Erscheinungsjahr

2002

Link zum Volltext

Quelle

Science Online_科学在线

Beschreibungen/Notizen

• Massive microbial mats covering up to 4-meter-high carbonate buildups prosper at methane seeps in anoxic waters of the northwestern Black Sea shelf. Strong13C depletions indicate an incorporation of methane carbon into carbonates, bulk biomass, and specific lipids. The mats mainly consist of densely aggregated archaea (phylogenetic ANME-1 cluster) and sulfate-reducing bacteria (Desulfosarcina/Desulfococcus group). If incubated in vitro, these mats perform anaerobic oxidation of methane coupled to sulfate reduction. Obviously, anaerobic microbial consortia can generate both carbonate precipitation and substantial biomass accumulation, which has implications for our understanding of carbon cycling during earlier periods of Earth's history.