Results 21 to 30 of about 2,972,410 (343)

The Effect of a Tropical Climate on Available Nutrient Resources to Springs in Ophiolite-Hosted, Deep Biosphere Ecosystems in the Philippines. [PDF]

Front Microbiol, 2019
Springs hosted in ophiolites are often affected by serpentinization processes. The characteristically low DIC and high CH4 and H2 gas concentrations of serpentinizing ecosystems have led to interest in hydrogen based metabolisms in these subsurface ...
Meyer-Dombard DR, Osburn MR, Cardace D, Arcilla CA.   +3 more
europepmc   +2 more sources

Subduction hides high-pressure sources of energy that may feed the deep subsurface biosphere

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, D. A. Sverjensky, F. Piccoli, F. Ressico, D. Giovannelli, I. Daniel   +5 more
doaj   +2 more sources

Search for Life in Deep Biospheres.

Biological Sciences in Space, 2003
The life in deep biospheres bridges conventional biology and future exobiology. This review focuses the microbiological studies from the selected deep biospheres, i.e., deep-sea hydrothermal vents, sub-hydrothermal vents, terrestrial subsurface and a sub-glacier lake.
Takeshi Naganuma
openalex   +4 more sources

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

Expedition 370 Preliminary Report: Temperature Limit of the Deep Biosphere off Muroto. [PDF]

, 2017
International Ocean Discovery Program (IODP) Expedition 370 aimed to explore the limits of life in the deep subseafloor biosphere at a location where temperature increases with depth at an intermediate rate and exceeds the known temperature maximum of ...
Heuer, Verena B., Inagaki, Fumio, Morono, Yuki, Kubo, Yusuke, Maeda, Lena, Bowden, Stephen, Cramm, Margaret, Henkel, Susann, Hirose, Takehiro, Homola, Kira, Hoshino, Tatsuhiko, Ijiri, Akira, Imachi, Hiroyuki, Kamiya, Nana, Kaneko, Masanori, Lagostina, Lorenzo, Manners, Hayley, McClelland, Harry-Luke, Metcalfe, Kyle, Okutsu, Natsumi, Pan, Donald, Raudsepp, Maija Jocelyn, Sauvage, Justine, Schubotz, Florence, Spivack, Arthur, Tonai, Satoshi, Treude, Tina, Tsang, Man-Yin, Viehweger, Bernhard, Wang, David T., Whitaker, Emily, Yamamoto, Yuzuru, Yang, Kiho, Kinoshita, Masataka   +33 more
openalex   +2 more sources

Microfluidics for studying the deep underground biosphere: from applications to fundamentals [PDF]

FEMS Microbiology Ecology
In this review, selected examples are presented to demonstrate how microfluidic approaches can be utilized for investigating microbial life from deep geological environments, both from practical and fundamental perspectives. Beginning with the definition
Sandy Morais, Emeline Vidal, Anaïs Cario, Samuel Marre, Anthony Ranchou‐Peyruse   +4 more
openalex   +2 more sources

Deep‐biosphere consortium of fungi and prokaryotes in Eocene subseafloor basalts [PDF]

Geobiology, 2014
The deep biosphere of the subseafloor crust is believed to contain a significant part of Earth's biomass, but because of the difficulties of directly observing the living organisms, its composition and ecology are poorly known.
Stefan Bengtson, Magnus Ivarsson, Alberto Astolfo, Veneta Belivanova, Curt Broman, Federica Marone, Marco Stampanoni   +6 more
openalex   +2 more sources

Re-Evaluating the Age of Deep Biosphere Fossils in the Lockne Impact Structure [PDF]

Géosciences, 2019
Impact-generated hydrothermal systems have been suggested as favourable environments for deep microbial ecosystems on Earth, and possibly beyond. Fossil evidence from a handful of impact craters worldwide have been used to support this notion.
Mikael Tillberg, Magnus Ivarsson, Henrik Drake, Martin J. Whitehouse, Ellen Kooijman, Melanie Kielman‐Schmitt   +5 more
openalex   +2 more sources

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   +2 more sources

Microbial metagenomes from three aquifers in the Fennoscandian shield terrestrial deep biosphere reveal metabolic partitioning among populations. [PDF]

ISME J, 2016
Microorganisms in the terrestrial deep biosphere host up to 20% of the earth’s biomass and are suggested to be sustained by the gases hydrogen and carbon dioxide. A metagenome analysis of three deep subsurface water types of contrasting age (from
Wu X, Holmfeldt K, Hubalek V, Lundin D, Åström M, Bertilsson S, Dopson M.   +6 more
europepmc   +2 more sources