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Biogeographical distribution and diversity of microbes in methane hydrate-bearing deep marine sediments on the Pacific Ocean Margin.
The deep subseafloor biosphere is among the least-understood habitats on Earth, even though the huge microbial biomass therein plays an important role for potential long-term controls on globalExpand
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Heterotrophic Archaea dominate sedimentary subsurface ecosystems off Peru.
Studies of deeply buried, sedimentary microbial communities and associated biogeochemical processes during Ocean Drilling Program Leg 201 showed elevated prokaryotic cell numbers in sediment layersExpand
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Predominant archaea in marine sediments degrade detrital proteins
Half of the microbial cells in the Earth’s oceans are found in sediments. Many of these cells are members of the Archaea, single-celled prokaryotes in a domain of life separate from Bacteria andExpand
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Origin, dynamics, and implications of extracellular DNA pools in marine sediments.
In marine sediments, DNA occurs both inside and outside living organisms. DNA not enclosed in living cells may account for the largest fraction of total DNA, and include molecules locked within deadExpand
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Life under extreme energy limitation: a synthesis of laboratory- and field-based investigations.
The ability of microorganisms to withstand long periods with extremely low energy input has gained increasing scientific attention in recent years. Starvation experiments in the laboratory have shownExpand
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Exploring deep microbial life in coal-bearing sediment down to ~2.5 km below the ocean floor
A deep sleep in coal beds Deep below the ocean floor, microorganisms from forest soils continue to thrive. Inagaki et al. analyzed the microbial communities in several drill cores off the coast ofExpand
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Evidence for Microbial Carbon and Sulfur Cycling in Deeply Buried Ridge Flank Basalt
Under the Sea Floor Microorganisms living in basaltic sea floor buried beneath sediments derive energy from inorganic components from the host rocks that interact with infiltrating seawater, whichExpand
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A modular method for the extraction of DNA and RNA, and the separation of DNA pools from diverse environmental sample types
A method for the extraction of nucleic acids from a wide range of environmental samples was developed. This method consists of several modules, which can be individually modified to maximize yieldsExpand
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Metabolic variability in seafloor brines revealed by carbon and sulphur dynamics
Brine fluids supply the sea floor with energy-rich substrates. Geochemical and genetic analyses indicate that the associated microbial communities—and their dominant metabolisms—vary between seepExpand
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Methanogen Diversity Evidenced by Molecular Characterization of Methyl Coenzyme M Reductase A (mcrA) Genes in Hydrothermal Sediments of the Guaymas Basin
ABSTRACT The methanogenic community in hydrothermally active sediments of Guaymas Basin (Gulf of California, Mexico) was analyzed by PCR amplification, cloning, and sequencing of methyl coenzyme MExpand
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