Presentation is loading. Please wait.

Presentation is loading. Please wait.

Anaerobic oxidation of methane mediated by a syntrophic microbial consortium above marine gas hydrate (Cascadia continental margin, NE-Pacific) *Boetius.

Published byBonnie Lambert Modified over 8 years ago

Similar presentations

Presentation on theme: "Anaerobic oxidation of methane mediated by a syntrophic microbial consortium above marine gas hydrate (Cascadia continental margin, NE-Pacific) *Boetius."— Presentation transcript:

1 Anaerobic oxidation of methane mediated by a syntrophic microbial consortium above marine gas hydrate (Cascadia continental margin, NE-Pacific) *Boetius A, Elvert M, Nauhaus K, Ravenschlag K, Schubert C, Treude T, Witte U Max Planck Institute for Marine Microbiology, Bremen, Germany *Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany Rickert, D GEOMAR Research Center for Marine Geosciences, Kiel, Germany MUMM Methane in Gas Hydrate Bearing Sediments – Turnover Rates and Microorganisms

2 Cascadia subduction zone: Hydrate Ridge 780 m water depth

3 gas hydrate GEOMAR

4 Beggiatoa mat GEOMAR

5 Calyptogena field GEOMAR

6 Carbonate structure GEOMAR/ALVIN

7 CH 4 + SO 4 2-  HCO 3 - + HS - + H 2 O Where does all the sulfide come from?... anaerobic oxidation of methane!

8 Boetius et al. 2000, NATURE 407,p 623-626 A marine microbial consortium apparently mediating anaerobic oxidation of methane Methane:  13 C:-50 to -70‰ Archaeal Lipids:  13 C: <-100‰ (Archeol, Hydroxyarcheol, Crocetan, PMI) SRB Lipids/Alcohols:  13 C: <-70‰ (iso- /antiso- C 15 /C 17 fatty acids) >90% of total microbial biomass (>10^10 cells/ccm)

9 Boetius et al. 2000, NATURE 407,p 623-626 A marine microbial consortium apparently mediating anaerobic oxidation of methane Archaea Probe BA2H11-932 SRB Probe DSS658 5 µm

10 AOM rates FROM: K.U. Hinrichs & A. Boetius (2001, in press) The anaerobic oxidation of methane: New insights in microbial ecology and biogeochemistry a Jørgensen (1983) b Suess et al. (1999) total sinks 688 Tg CH4

11 sulfate reduction rates integrated SRR (mmol/m 2 /d; 0-10 cm): 33 68 0.4

12 number of SRB/archaea-aggregates integrated total cell numbers (cells/cm -2 ; 0-10 cm): 2.1*10 11 1.9*10 11 2.9*10 10

13 aggregate size spectrum Average Size 3.2±1  m Archaea = 100 cells SRB = 200 cells 5  m

14 Calcification? CH 4 + SO 4 2-  HCO 3 - + HS - + H 2 O 10  m 1 m

15 outlook

16 aggregate size spectrum 5  m A. Gieseke, MPI

17 mineral precipitates T. Neu., UFZ Magdeburg

18 mineral precipitates T. Neu., UFZ Magdeburg

19 Anaerobic Oxidation of Methane Reference Calyptogena field. Beggiatoa mat

20 Project MUMM

Download ppt "Anaerobic oxidation of methane mediated by a syntrophic microbial consortium above marine gas hydrate (Cascadia continental margin, NE-Pacific) *Boetius."

Similar presentations

The Carbon Farming Initiative and Agricultural Emissions This presentation was prepared by the University of Melbourne for the Regional Landcare Facilitator.

The Carbon Farming Initiative and Agricultural Emissions This presentation was prepared by the University of Melbourne for the Regional Landcare Facilitator.
Global Change Research in Belgium 1990-2002 Guy P. Brasseur Max Planck Institute for Meteorology Chair, International Geosphere Biosphere Programme (IGBP)

Global Change Research in Belgium Guy P. Brasseur Max Planck Institute for Meteorology Chair, International Geosphere Biosphere Programme (IGBP)
Fundamentals of Soil Science

Fundamentals of Soil Science
Iron and Manganese Cycling

Iron and Manganese Cycling
Particle transport and organic carbon fluxes off NW Africa: impact of dust and carbonate G. Fischer (1), M. Iversen (3, 4), G. Karakas (3), N. Nowald (1),

Particle transport and organic carbon fluxes off NW Africa: impact of dust and carbonate G. Fischer (1), M. Iversen (3, 4), G. Karakas (3), N. Nowald (1),
Geobiology & Biogeochemistry

Geobiology & Biogeochemistry
Bolbfish The blobfish (Psychrolutes marcidus) is a fish that inhabits the deep waters off the coasts of Australia and Tasmania. Due to the inaccessibility.

Bolbfish The blobfish (Psychrolutes marcidus) is a fish that inhabits the deep waters off the coasts of Australia and Tasmania. Due to the inaccessibility.
Biochemical Sedimentary Rocks Most Chemical Sedimentary Rocks have a significant biological component, making a sharp distinction impractical.

Biochemical Sedimentary Rocks Most Chemical Sedimentary Rocks have a significant biological component, making a sharp distinction impractical.
Bottom-up methane dynamics along the degradation of permafrost: A case study on microbial communities of the methane cycle in a collapsing sub-Arctic palsa.

Bottom-up methane dynamics along the degradation of permafrost: A case study on microbial communities of the methane cycle in a collapsing sub-Arctic palsa.
Estuarine Cycles Estuaries are the best cyclers in the world!

Estuarine Cycles Estuaries are the best cyclers in the world!
MICROBES!!!! Alcanivorax Borkumensis.

MICROBES!!!! Alcanivorax Borkumensis.
Methane related microbial activity in sediments of the Beaufort Sea (Arctic Ocean) Stefan Krause 1, Johanna Schweers 1, Leila Hamdan 2 & Tina Treude 1.

Methane related microbial activity in sediments of the Beaufort Sea (Arctic Ocean) Stefan Krause 1, Johanna Schweers 1, Leila Hamdan 2 & Tina Treude 1.
Anaerobic Oxidation of Methane (AOM) in marine sediments Contribution 8, by Tina Treude & Antje Boetius.

Anaerobic Oxidation of Methane (AOM) in marine sediments Contribution 8, by Tina Treude & Antje Boetius.
Methane and Nitrous Oxide distributions in natural waters around Taiwan Hsiao-Chun Tseng, Chen-Tung Arthur Chen, Ting-Yu Chen ＊, Hung-Ling Chen,Meng-Chia.

Methane and Nitrous Oxide distributions in natural waters around Taiwan Hsiao-Chun Tseng, Chen-Tung Arthur Chen, Ting-Yu Chen ＊, Hung-Ling Chen,Meng-Chia.
OEB 192 – 11.11.16 Evolution of cooperation. Important reducer of greenhouse gas emissions (90% of marine methane from marine sediments oxidized by.

OEB 192 – Evolution of cooperation. Important reducer of greenhouse gas emissions (90% of marine methane from marine sediments oxidized by.
Evolution of Cooperation How do you direct more benefit to cooperators vs. cheaters? How would you ever get a mutualism if both are costly?

Evolution of Cooperation How do you direct more benefit to cooperators vs. cheaters? How would you ever get a mutualism if both are costly?
Carbon in the form of CO 2, HCO 3 - and CO 3 -2, are oxidized forms of C, and tend to be the only forms present where O 2 is plentiful. In anoxic environments.

Carbon in the form of CO 2, HCO 3 - and CO 3 -2, are oxidized forms of C, and tend to be the only forms present where O 2 is plentiful. In anoxic environments.
Carbonates Madelon van den Hooven

Carbonates Madelon van den Hooven
Oxidative coupling of Methane & other reactions for treating Sulfur CHBE 446 – Gp5 Stephan Donfack Benjamin Harbor Nguyen Huynh Cyndi Mbaguim.

Oxidative coupling of Methane & other reactions for treating Sulfur CHBE 446 – Gp5 Stephan Donfack Benjamin Harbor Nguyen Huynh Cyndi Mbaguim.
Ground Water. Kristina Loen Wei Zheng  Groundwater important of drinking  Pollution industry/agriculture: near surface abandoned, obtained from deeper.

Ground Water. Kristina Loen Wei Zheng  Groundwater important of drinking  Pollution industry/agriculture: near surface abandoned, obtained from deeper.

Similar presentations

Ads by Google