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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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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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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The smallest in the deepest: the enigmatic role of viruses in the deep biosphere [PDF]
National Science Review, 2023 International audienceIt is commonly recognized that viruses control the composition, metabolism, and evolutionary trajectories of prokaryotic communities, with resulting vital feedback on ecosystem functioning and nutrient cycling in a wide range of ...
Lanlan Cai, Markus G Weinbauer, Le Xie
exaly +4 more sources
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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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
doaj +6 more sources
Subduction hides high-pressure sources of energy that may feed the deep subsurface biosphere [PDF]
Nature Communications, 2020 Geological sources of H2 and abiotic CH4 have had a critical role in the evolution of life and sustainability of the deep subsurface biosphere, yet the origins of these sources remain largely unconstrained.
A. Vitale Brovarone +5 more
doaj +2 more sources
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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Exploring the Deep Marine Biosphere: Challenges, Innovations, and Opportunities
Frontiers in Earth Science, 2019 The deep marine biosphere is one of the largest, and yet least explored, microbial habitats on the planet. Quantifying the extent, diversity, and activity of subsurface microbial communities is a crucial part of understanding their role in global ...
Anaïs Cario +4 more
doaj +2 more sources
Geological processes mediate a microbial dispersal loop in the deep biosphere. [PDF]
Sci Adv, 2022 The deep biosphere is the largest microbial habitat on Earth and features abundant bacterial endospores. Whereas dormancy and survival at theoretical energy minima are hallmarks of microbial physiology in the subsurface, ecological processes such as ...
Gittins DA +16 more
europepmc +2 more sources