Acetogenesis in the energy-starved deep biosphere – a paradox? [PDF]
Frontiers in Microbiology, 2012 Under anoxic conditions in sediments, acetogens are often thought to be outcompeted by microorganisms performing energetically more favorable metabolic pathways, such as sulfate reduction or methanogenesis. Recent evidence from deep subseafloor sediments
Mark Alexander Lever
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In-situ detection of microbial life in the deep biosphere in igneous ocean crust [PDF]
Frontiers in Microbiology, 2015 The deep biosphere is a major frontier to science. Recent studies have shown the presence and activity of cells in deep marine sediments and in the continental deep biosphere. Volcanic lavas in the deep ocean subsurface, through which substantial fluid
Everett Cosio Salas +7 more
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Thermochronologic perspectives on the deep-time evolution of the deep biosphere [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 2021 Significance The Earth’s deep biosphere is one of the least explored and understood environments. It hosts microbial lineages that are of interest for understanding the origin and evolution of life on our planet. Understanding the history of these microbial communities requires assessing the complex evolution of habitable conditions ...
Henrik Drake +2 more
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Connectivity of Fennoscandian Shield terrestrial deep biosphere microbiomes with surface communities [PDF]
Communications Biology, 2022 Westmeijer et al. employ high-throughput sequencing to investigate the connection between deep biosphere groundwaters and surface microbial communities.
George Westmeijer +10 more
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Shaping of the Present-Day Deep Biosphere at Chicxulub by the Impact Catastrophe That Ended the Cretaceous [PDF]
Frontiers in Microbiology, 2021 We report on the effect of the end-Cretaceous impact event on the present-day deep microbial biosphere at the impact site. IODP-ICDP Expedition 364 drilled into the peak ring of the Chicxulub crater, México, allowing us to investigate the microbial ...
Charles S. Cockell +24 more
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Metatranscriptomes Reveal That All Three Domains of Life Are Active but Are Dominated by Bacteria in the Fennoscandian Crystalline Granitic Continental Deep Biosphere [PDF]
mBio, 2018 The continental subsurface is suggested to contain a significant part of the earth’s total biomass. However, due to the difficulty of sampling, the deep subsurface is still one of the least understood ecosystems. Therefore, microorganisms inhabiting this
Margarita Lopez-Fernandez +8 more
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Tracking the Deep Biosphere through Time
Geosciences, 2020 The oceanic and continental lithosphere constitutes Earth’s largest microbial habitat, yet it is scarcely investigated and not well understood. The physical and chemical properties here are distinctly different from the overlaying soils and the ...
Henrik Drake +2 more
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Genomic insights into a versatile deep-sea methanotroph constituting the rare biosphere of a Brazilian carbonate mound complex [PDF]
mSystemsRecent discoveries of aerobic methanotrophs in non-seep carbonate-rich environments in the deep sea suggest that these organisms may persist as part of the rare biosphere.
Ana Carolina de Araújo Butarelli +8 more
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The smallest in the deepest: the enigmatic role of viruses in the deep biosphere [PDF]
National Science Review, 2023 Lanlan Cai +2 more
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Shrinking majority of the deep biosphere. [PDF]
Proc Natl Acad Sci U S A, 2012 Living microorganisms were first discovered in sediment cores from scientific ocean drilling in the late 1980s when microbiologists observed and counted DNA-stained microbial cells under the microscope. During the following decade, new observations were made from drill sites in the Atlantic and Pacific Oceans and the Mediterranean Sea (1, 2).
Jørgensen BB.
europepmc +5 more sources