Results 131 to 140 of about 1,096 (152)

Ubiquitous microbial contaminants associated with scientific ocean drilling. [PDF]

Access Microbiol
Labonté JM, Campbell KL, Walker JR, Rodriguez-Pilco MA.   +3 more
europepmc   +1 more source

Biomass, Diversity, and Metabolic Functions of Subseafloor Life: Detection and Enumeration of Microbial Cells in Subseafloor Sediment

, 2014
Morono, Y., Kallmeyer, J.
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Microbial Provinces in the Subseafloor

Annual Review of Marine Science, 2010
The rocks and sediments of the oceanic subsurface represent a diverse mosaic of environments potentially inhabited by microorganisms. Understanding microbial ecosystems in subseafloor environments confounds standard ecological descriptions in part because we have difficulty elucidating and describing the scale of relevant processes.
Matthew O, Schrenk, Julie A, Huber, Katrina J, Edwards   +2 more
openaire   +2 more sources

Induction of prophages from deep‐subseafloor bacteria

Environmental Microbiology Reports, 2011
Summary The deep‐subseafloor biosphere harbours a major part of the total microbial biomass on Earth. However, how life and death in this environment are regulated is not yet understood. While organisms from higher trophic levels appear to be absent, viruses might be a factor for microbial mortality.
Tim, Engelhardt, Monika, Sahlberg, Heribert, Cypionka, Bert, Engelen   +3 more
openaire   +2 more sources

The Deep Subseafloor and Biosignatures

2018
A critical issue in astrobiology is “where to look for present or past life?” and which types of environments could be relevant, i.e. environments associated with high probabilities to (have) support(ed) life and preserve(d) biosignatures. Due both to the large reservoir it represents and to its protective effect against harmful surface conditions, for
Frédéric Gaboyer, Gaëtan Burgaud, Virginia Edgcomb   +2 more
openaire   +1 more source

Fossilized fungi in subseafloor Eocene basalts

Geology, 2012
The deep biosphere of subseafloor basalts is thought to consist of mainly prokaryotes (bacteria and archaea). Here we report fossilized filamentous microorganisms from subseafloor basalts interpreted as fossilized fungal hyphae, probably Dikarya, rather than fossilized prokaryotes. The basalts were collected during the Ocean Drilling Program Leg 197 at
Ivarsson, M, Bengtson, S, Belivanova, V, Stampanoni, M, Marone, F, Tehler, A   +5 more
openaire   +1 more source

Distributions of Microbial Activities in Deep Subseafloor Sediments

Science, 2004
Diverse microbial communities and numerous energy-yielding activities occur in deeply buried sediments of the eastern Pacific Ocean. Distributions of metabolic activities often deviate from the standard model. Rates of activities, cell concentrations, and populations of cultured bacteria vary consistently from one subseafloor environment to another ...
D'Hondt, Steven, Jørgensen, Bo Barker, Miller, D. Jay, Batzke, Anja, Blake, Ruth, Cragg, Barry A., Cypionka, Heribert, Dickens, Gerald R., Ferdelman, Timothy, Hinrichs, Kai Uwe, Holm, Nils G., Mitterer, Richard, Spivack, Arthur, Wang, Guizhi, Bekins, Barbara, Engelen, Bert, Ford, Kathryn, Gettemy, Glen, Rutherford, Scott D., Sass, Henrik, Skilbeck, C. Gregory, Aiello, Ivano W., Guèrin, Gilles, House, Christopher H., Inagaki, Fumio, Meister, Patrick, Naehr, Thomas, Niitsuma, Sachiko, Parkes, R. John, Schippers, Axel, Smith, David C., Teske, Andreas, Wiegel, Juergen, Padilla, Christian Naranjo, Luz Solis Acosta, Juana   +34 more
openaire   +3 more sources

Fossilized Life in Subseafloor Ultramafic Rocks

Geomicrobiology Journal, 2018
Ultramafic rocks are hypothesized to support a subseafloor hydrogen-driven biosphere because of extensive production of bioavailable energy sources like H2 or CH4 from fluid-rock interactions.
M. Ivarsson, W. Bach, C. Broman, A. Neubeck, S. Bengtson   +4 more
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Lower power limit to subseafloor life

Science, 2020
Deep Biosphere Microorganisms in sediment in the subseafloor have survived under extreme energy constraints for millions of years. Using a global bioenergetic ecosystem model, Bradley et al. calculated the rate of microbial energy use in marine sediment deposited in the past ∼2.6 million years, as well as the rate and thermodynamic properties of ...
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Viral activities and life cycles in deep subseafloor sediments

Environmental Microbiology Reports, 2015
Summary Viruses are highly abundant in marine subsurface sediments and can even exceed the number of prokaryotes. However, their activity and quantitative impact on microbial populations are still poorly understood. Here, we use gene expression data from published continental margin subseafloor metatranscriptomes to qualitatively ...
Tim Engelhardt, William D. Orsi, Bo Barker Jørgensen   +2 more
openaire   +2 more sources