Results 41 to 50 of about 5,840 (173)

Isotopologue Ratios Identify ¹³C-Depleted Biomarkers in Environmental Samples Impacted by Methane Turnover. [PDF]

Rapid Commun Mass Spectrom
ABSTRACT Rationale The stable carbon isotopic composition (δ13C) of individual lipids is of great value in studying carbon cycling. Among those, microbial lipids in sediments impacted by high methane turnover stand out due to their uniquely depleted isotopic fingerprint.
Groninga J, Lipp J, Song M, Hinrichs KU.
europepmc   +2 more sources

Activity and interactions of methane seep microorganisms assessed by parallel transcription and FISH-NanoSIMS analyses [PDF]

, 2015
To characterize the activity and interactions of methanotrophic archaea (ANME) and Deltaproteobacteria at a methane-seeping mud volcano, we used two complimentary measures of microbial activity: a community-level analysis of the transcription of four ...
Chadwick, Grayson L., Connon, Stephanie A., Dekas, Anne E., Orphan, Victoria J., Trembath-Reichert, Elizabeth   +4 more
core   +2 more sources

Geochemical and Microbial Signatures of Siboglinid Tubeworm Habitats at an Active Mud Volcano in the Canadian Beaufort Sea

Frontiers in Marine Science, 2021
During the ARA08C expedition in 2017, sediment push cores were collected at an active mud volcano (420 m water depth) in the Canadian Beaufort Sea from two visually discriminative siboglinid tubeworm (ST) habitats that were colonized densely and less ...
Dong-Hun Lee, Jung-Hyun Kim, Yung Mi Lee, Ji-Hoon Kim, Young Keun Jin, Charles Paull, Jong-Sik Ryu, Kyung-Hoon Shin   +7 more
doaj   +1 more source

Microbial Communities Involved in Methane, Sulfur, and Nitrogen Cycling in the Sediments of the Barents Sea

Microorganisms, 2021
A combination of physicochemical and radiotracer analysis, high-throughput sequencing of the 16S rRNA, and particulate methane monooxygenase subunit A (pmoA) genes was used to link a microbial community profile with methane, sulfur, and nitrogen cycling ...
Shahjahon Begmatov, Alexander S. Savvichev, Vitaly V. Kadnikov, Alexey V. Beletsky, Igor I. Rusanov, Alexey A. Klyuvitkin, Ekaterina A. Novichkova, Andrey V. Mardanov, Nikolai V. Pimenov, Nikolai V. Ravin   +9 more
doaj   +1 more source

Activity of Ancillary Heterotrophic Community Members in Anaerobic Methane-Oxidizing Cultures

Frontiers in Microbiology, 2022
Consortia of anaerobic methanotrophic archaea (ANME) and sulfate-reducing bacteria mediate the anaerobic oxidation of methane (AOM) in marine sediments.
Qing-Zeng Zhu, Gunter Wegener, Gunter Wegener, Kai-Uwe Hinrichs, Kai-Uwe Hinrichs, Marcus Elvert, Marcus Elvert   +6 more
doaj   +1 more source

Visualizing in situ translational activity for identifying and sorting slow-growing archaeal−bacterial consortia [PDF]

, 2016
To understand the biogeochemical roles of microorganisms in the environment, it is important to determine when and under which conditions they are metabolically active.
Connon, Stephanie A., Goudeau, Danielle, Hatzenpichler, Roland, Malmstrom, Rex R., Orphan, Victoria J., Woykeb, Tanja   +5 more
core   +2 more sources

Extensive carbon isotopic heterogeneity among methane seep microbiota [PDF]

, 2009
To assess and study the heterogeneity of δ^(13)C values for seep microorganisms of the Eel River Basin, we studied two principally different sample sets: sediments from push cores and artificial surfaces colonized over a 14 month in situ incubation. In a
House, Christopher H., Joye, Samantha B., Orphan, Victoria J., Pernthaler, Annelie, Thomas, Burt, Turk, Kendra A., Vrentas, Jennifer M.   +6 more
core   +1 more source

Methanogen activity and microbial diversity in Gulf of Cádiz mud volcano sediments

Frontiers in Microbiology, 2023
The Gulf of Cádiz is a tectonically active continental margin with over sixty mud volcanoes (MV) documented, some associated with active methane (CH4) seepage. However, the role of prokaryotes in influencing this CH4 release is largely unknown.
Gordon Webster, Gordon Webster, Barry A. Cragg, Joachim Rinna, Joachim Rinna, Andrew J. Watkins, Andrew J. Watkins, Henrik Sass, Andrew J. Weightman, R. John Parkes   +9 more
doaj   +1 more source

Metabolic capabilities of microorganisms involved in and associated with the anaerobic oxidation of methane

Frontiers in Microbiology, 2016
In marine sediments the anaerobic oxidation of methane with sulfate as electron acceptor (AOM) is responsible for the removal of a major part of the greenhouse gas methane.
Gunter eWegener, Gunter eWegener, Viola eKrukenberg, S. Emil Ruff, Matthias Y. Kellermann, Matthias Y. Kellermann, Katrin eKnittel   +6 more
doaj   +1 more source

The Impact of Methane on Microbial Communities at Marine Arctic Gas Hydrate Bearing Sediment

Frontiers in Microbiology, 2020
Cold seeps are characterized by high biomass, which is supported by the microbial oxidation of the available methane by capable microorganisms. The carbon is subsequently transferred to higher trophic levels.
Vincent Carrier, Vincent Carrier, Mette M. Svenning, Mette M. Svenning, Friederike Gründger, Helge Niemann, Helge Niemann, Helge Niemann, Pierre-Antoine Dessandier, Giuliana Panieri, Dimitri Kalenitchenko   +10 more
doaj   +1 more source