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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, Anaïs Cario, Gina C. Oliver, Karyn L. Rogers, Karyn L. Rogers   +4 more
doaj   +2 more sources

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, Magnus Ivarsson, Christine Heim   +2 more
doaj   +2 more sources

Advancing subsurface biosphere and paleoclimate research: ECORD–ICDP–DCO–J-DESC–MagellanPlus Workshop Series Program Report [PDF]

Scientific Drilling, 2015
The proper pre-drilling preparation, on-site acquisition and post-drilling preservation of high-quality subsurface samples are crucial to ensure significant progress in the scientifically and societally important areas of subsurface biosphere and ...
H. J. Mills, J. de Leeuw, K.-U. Hinrichs, F. Inagaki, J. Kallmeyer   +4 more
doaj   +1 more source

High frequency of phylogenetically diverse reductive dehalogenase-homologous genes in deep subseafloor sedimentary metagenomes

Frontiers in Microbiology, 2014
Marine subsurface sediments on the Pacific margin harbor diverse microbial communities even at depths of several hundreds meters below the seafloor (mbsf) or more.
Mikihiko eKawai, Mikihiko eKawai, Taiki eFutagami, Taiki eFutagami, Atsushi eToyoda, Yoshihiro eTakaki, Shinro eNishi, Sayaka eHori, Wataru eArai, Taishi eTsubouchi, Yuki eMorono, Yuki eMorono, Ikuo eUchiyama, Takehiko eItoh, Asao eFujiyama, Fumio eInagaki, Fumio eInagaki, Hideto eTakami   +17 more
doaj   +1 more source

Using Cathodic Poised Potential Experiments to Investigate Extracellular Electron Transport in the Crustal Deep Biosphere of North Pond, Mid-Atlantic Ridge

Frontiers in Environmental Science, 2020
The crustal sub-seafloor covers a large portion of the Earth’s surface but is poorly understood as a habitat for life. It is unclear what metabolisms support the microscopic cells that have been observed, and how they survive under resource limitation ...
Rose M. Jones, Rose M. Jones, Timothy D’Angelo, Beth N. Orcutt   +3 more
doaj   +1 more source

Ancient and Modern Geochemical Signatures in the 13,500-Year Sedimentary Record of Lake Cadagno

Frontiers in Earth Science, 2022
Although lake sediments are globally important organic carbon sinks and therefore important habitats for deep microbial life, the deep lacustrine biosphere has thus far been little studied compared to its marine counterpart.
Jasmine S. Berg, Mathilde Lepine, Emile Laymand, Xingguo Han, Hendrik Vogel, Marina A. Morlock, Niroshan Gajendra, Adrian Gilli, Stefano M. Bernasconi, Carsten J. Schubert, Carsten J. Schubert, Guangyi Su, Mark A. Lever   +12 more
doaj   +1 more source

Genomes of three bacteriophages from the deep subsurface aquifer

Data in Brief, 2019
Viral particles have been detected in the underground biosphere where they could be one of the main factors impacting microbial diversity, biogeochemistry and evolution.
Vitaly V. Kadnikov, Andrey V. Mardanov, Yulia A. Frank, Alexey V. Beletsky, Olga V. Karnachuk, Nikolai V. Ravin   +5 more
doaj   +1 more source

Accessing the energy-limited and sparsely populated deep biosphere: achievements and ongoing challenges of available technologies

Progress in Earth and Planetary Science, 2023
Microbes in marine sediments detected and counted by direct observation of membrane-filtered sediment samples stained with acridine orange. This technique can still be applied to high-biomass (> 105 cells/cm3) sedimentary habitats, such as organic-rich ...
Yuki Morono
doaj   +1 more source

Deglacial carbon cycle changes observed in a compilation of 127 benthic δ¹³C time series (20–6 ka) [PDF]

Climate of the Past, 2018
We present a compilation of 127 time series δ13C records from Cibicides wuellerstorfi spanning the last deglaciation (20–6 ka) which is well-suited for reconstructing large-scale carbon cycle changes, especially for comparison with isotope ...
C. D. Peterson, C. D. Peterson, L. E. Lisiecki   +2 more
doaj   +1 more source

Cultural Values of Landscapes in the Practical Work of Biosphere Reserves

Land, 2023
The purpose of this paper is to investigate the role of the landscape’s cultural values in the practical work of biosphere reserves and to identify what opportunities there are to increase awareness and knowledge about these values.
Ingegärd Eliasson, Susanne Fredholm, Igor Knez, Eva Gustavsson, Jon Weller   +4 more
doaj   +1 more source