Biogeochemical activity of anaerobic microorganisms from buried permafrost sediments

Rivkina, Elizaveta; Gilichinsky, D.; Wagener, Stefan; Tiedje, James M.; McGrath, John W.

doi:10.1080/01490459809378075

Cited by 115 publications

(91 citation statements)

References 8 publications

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“…Direct bacterial counts in the order of 10 7 -10 8 were reported for permafrost deposits from Northeast Siberia (Rivkina et al, 1998). Furthermore, Shi et al (1997) found viable bacteria in permafrost sediments up to 3 million years in age in the Kolyma-Indigirka lowlands.…”

Section: Introductionmentioning

confidence: 96%

Methanogenic activity and biomass in Holocene permafrost deposits of the Lena Delta, Siberian Arctic and its implication for the global methane budget

Wagner¹,

Gattinger²,

Embacher³

et al. 2007

Global Change Biol

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Permafrost environments within the Siberian Arctic are natural sources of the climate relevant trace gas methane. In order to improve our understanding of the present and future carbon dynamics in high latitudes, we studied the methane concentration, the quantity and quality of organic matter, and the activity and biomass of the methanogenic community in permafrost deposits. For these investigations a permafrost core of Holocene age was drilled in the Lena Delta (72122 0 N, 126128 0 E). The organic carbon of the permafrost sediments varied between 0.6% and 4.9% and was characterized by an increasing humification index with permafrost depth. A high CH 4 concentration was found in the upper 4 m of the deposits, which correlates well with the methanogenic activity and archaeal biomass (expressed as PLEL concentration). Even the incubation of core material at À3 and À6 1C with and without substrates showed a significant CH 4 production (range: 0.04-0.78 nmol CH 4 h À1 g À1 ). The results indicated that the methane in Holocene permafrost deposits of the Lena Delta originated from modern methanogenesis by cold-adapted methanogenic archaea. Microbial generated methane in permafrost sediments is so far an underestimated factor for the future climate development.

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Section: Introductionmentioning

confidence: 96%

Methanogenic activity and biomass in Holocene permafrost deposits of the Lena Delta, Siberian Arctic and its implication for the global methane budget

Wagner¹,

Gattinger²,

Embacher³

et al. 2007

Global Change Biol

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“…The microbial biomass in permafrost can be quite high with 10 7 to 10 9 cells per gram even in samples that are millions of years old (Gilichinsky and Wagener 1995;Shi, Reeves et al 1997;Vorobyova, Soina et al 1997;Rivkina, Gilichinsky et al 1998;Wilson, Braddock et al 1998). Both aerobic and anaerobic bacteria are present and viable.…”

Section: Fundamental and Applied Research On Water Generated During Pmentioning

confidence: 99%

Methane Hydrate Production From Alaskan Permafrost

Williams¹,

Millheim²,

Liddell³

2005

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Natural-gas hydrates have been encountered beneath the permafrost and considered a nuisance by the oil and gas industry for years. Oil-field engineers working in Russia, Canada and the USA have documented numerous drilling problems, including kicks and uncontrolled gas releases, in Arctic regions. Information has been generated in laboratory studies pertaining to the extent, volume, chemistry and phase behavior of gas hydrates. Scientists studying hydrates agree that the potential is great-on the North Slope of Alaska alone, it has been estimated at 590 TCF. However, little information has been obtained on physical samples taken from actual rock containing hydrates.This gas-hydrate project is a cost-shared partnership between Maurer Technology, Anadarko Petroleum, Noble Corporation, and the U.S. Department of Energy's Methane Hydrate R&D program. The purpose of the project is to build on previous and ongoing R&D in the area of onshore hydrate deposition to help identify, quantify and predict production potential for hydrates located on the North Slope of Alaska.

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“…Evidence of permafrost occurrence on present Mars (patterned ground, glacier or thermokarst) has been found by Mars Express. Comparable environments exist in polar regions on Earth, for example Antarctic ice cores (Abyzov et al 1998(Abyzov et al , 1999, Greenland glacial ice (Tung et al 2005) and Siberian permafrost (Gilichinsky et al 1993), where microorganisms existed for several million years independent of photosynthetic energy production (Gilichinsky and Wagener 1994;Vorobyova et al 1998;Rivkina et al 1998, Wagner et al 2001.…”

Section: Introductionmentioning

confidence: 99%

Survival of Methanogenic Archaea from Siberian Permafrost under Simulated Martian Thermal Conditions

Morozova

Möhlmann

Wagner

2006

Orig Life Evol Biosph

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Methanogenic archaea from Siberian permafrost complementary to the already well-studied methanogens from non-permafrost habitats were exposed to simulated Martian conditions. After 22 days of exposure to thermo-physical conditions at Martian low-and midlatitudes up to 90% of methanogenic archaea from Siberian permafrost survived in pure cultures as well as in environmental samples. In contrast, only 0.3% -5.8% of reference organisms from non-permafrost habitats survived at these conditions. This suggests that methanogens from terrestrial permafrost seem to be remarkably resistant to Martian conditions. Our data also suggest that in scenario of subsurface lithoautotrophic life on Mars, methanogenic archaea from Siberian permafrost could be used as appropriate candidates for the microbial life on Mars.

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Biogeochemical activity of anaerobic microorganisms from buried permafrost sediments

Cited by 115 publications

References 8 publications

Methanogenic activity and biomass in Holocene permafrost deposits of the Lena Delta, Siberian Arctic and its implication for the global methane budget

Methanogenic activity and biomass in Holocene permafrost deposits of the Lena Delta, Siberian Arctic and its implication for the global methane budget

Methane Hydrate Production From Alaskan Permafrost

Survival of Methanogenic Archaea from Siberian Permafrost under Simulated Martian Thermal Conditions

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