Results 51 to 60 of about 12,148 (194)

Anthropogenic and Environmental Constraints on the Microbial Methane Cycle in Coastal Sediments

Frontiers in Microbiology, 2021
Large amounts of methane, a potent greenhouse gas, are produced in anoxic sediments by methanogenic archaea. Nonetheless, over 90% of the produced methane is oxidized via sulfate-dependent anaerobic oxidation of methane (S-AOM) in the sulfate-methane ...
Anna J. Wallenius, Paula Dalcin Martins, Caroline P. Slomp, Mike S. M. Jetten   +3 more
doaj   +1 more source

Contrasting Pathways for Anaerobic Methane Oxidation in Gulf of Mexico Cold Seep Sediments

mSystems, 2019
Gulf of Mexico sediments harbor numerous hydrocarbon seeps associated with high sedimentation rates and thermal maturation of organic matter. These ecosystems host abundant and diverse microbial communities that directly or indirectly metabolize ...
Adrien Vigneron, Eric B. Alsop, Perrine Cruaud, Gwenaelle Philibert, Benjamin King, Leslie Baksmaty, David Lavallee, Bartholomeus P. Lomans, Emiley Eloe-Fadrosh, Nikos C. Kyrpides, Ian M. Head, Nicolas Tsesmetzis   +11 more
doaj   +3 more sources

Unexpected scarcity of ANME archaea in hydrocarbon seeps within Monterey Bay [PDF]

Biogeosciences
Marine hydrocarbon seeps typically harbor a relatively predictable microbiome, including anaerobic methanotrophic (ANME) archaea. Here, we sampled two cold seeps in Monterey Bay, CA – Clam Field and Extrovert Cliff – which have been known for decades but
A. C. Semler, A. E. Dekas
doaj   +1 more source

Bubble transport Mechanism: Indications for a gas bubble-mediated inoculation of benthic methanothrophs into the water column [PDF]

, 2015
Highlights • A new bentho-pelagic transport mechanism of microorganisms is hypothesized • A bubble transport hypothesis was tested using a new gas bubble-collecting device • Bubble-mediated transport rate of methanotrophs was quantified at ...
Fram, Andreas, Kießlich, Katrin, Krause, Stefan, Leifer, Ira, Schmale, Oliver, Schneider von Deimling, Jens, Stolle, Christian, Treude, Tina   +7 more
core   +1 more source

Active Anaerobic Archaeal Methanotrophs in Recently Emerged Cold Seeps of Northern South China Sea

Frontiers in Microbiology, 2020
Cold seep ecosystems are developed from methane-rich fluids in organic rich continental slopes, which are the source of various dense microbial and faunal populations.
Tingting Zhang, Tingting Zhang, Tingting Zhang, Xi Xiao, Xi Xiao, Xi Xiao, Songze Chen, Songze Chen, Jing Zhao, Zongheng Chen, Junxi Feng, Junxi Feng, Qianyong Liang, Qianyong Liang, Qianyong Liang, Tommy J. Phelps, Tommy J. Phelps, Chuanlun Zhang, Chuanlun Zhang, Chuanlun Zhang   +19 more
doaj   +1 more source

Nonequilibrium Neutrino Oscillations in the Early Universe with an Inverted Neutrino-Mass Hierarchy

, 1996
The annihilation of electron-positron pairs around one second after the big bang distorts the Fermi-Dirac spectrum of neutrino energies. We determine the distortions assuming neutrino mixing with an inverted neutrino-mass hierarchy.
Caldwell, Dodelson, Dolgov, Dolgov, Enqvist, Enqvist, Fields, Fuller, Kolb, Kostelecký, Kostelecký, Kostelecký, Kostelecký, Kostelecký, Langacker, McKellar, Notzold, Raffelt, Samuel, Samuel, Savage, Shi, Stodolsky, Stuart Samuel, V.Alan Kostelecký   +24 more
core   +3 more sources

Dynamics of Iron‐Bound Organic Carbon Across Different Development Stages of Marine Cold Seeps

Global Biogeochemical Cycles, Volume 40, Issue 1, January 2026.
Abstract Marine cold seeps, where subsurface methane‐rich fluids discharge at seafloors, are “oases of life” that sustain highly active organic carbon (OC) and iron (Fe) cycling along the global continental margins. However, the interactions between Fe and OC and their impacts on the development and long‐term carbon preservation of cold seep ecosystems
Wenqi Ye, Yunru Chen, Chenxi Yang, Weikang Sui, Zian Tong, Xinyu Gu, Yanwei Wang, Zheng Xiong, Ningyuan Lu, Chuanhui Sun, Yang Wu, Xi Xiao, Lizhi Zhang, Qianyong Liang, Longhui Deng, Fengping Wang   +15 more
wiley   +1 more source

A long-term cultivation of an anaerobic methane-oxidizing microbial community from deep-sea methane-seep sediment using a continuous-flow bioreactor. [PDF]

PLoS ONE, 2014
Anaerobic oxidation of methane (AOM) in marine sediments is an important global methane sink, but the physiological characteristics of AOM-associated microorganisms remain poorly understood.
Masataka Aoki, Masayuki Ehara, Yumi Saito, Hideyoshi Yoshioka, Masayuki Miyazaki, Yayoi Saito, Ai Miyashita, Shuji Kawakami, Takashi Yamaguchi, Akiyoshi Ohashi, Takuro Nunoura, Ken Takai, Hiroyuki Imachi   +12 more
doaj   +1 more source

Environmental control on anaerobic oxidation of methane in gassy sediments of Eckernförde Bay (German Baltic) [PDF]

, 2005
We investigated the effect of seasonal environmental changes on the rate and distribution of anaerobic oxidation of methane (AOM) in Eckernforde Bay sediments (German Baltic Sea) and identified organisms that are likely to be involved in the process ...
Boetius, A., Jorgensen, B. B., Krüger, Kirstin, Treude, Tina   +3 more
core   +1 more source

Anaerobic oxidation of methane associated with sulfate reduction in a natural freshwater gas source [PDF]

, 2015
The occurrence of anaerobic oxidation of methane (AOM) and trace methane oxidation (TMO) was investigated in a freshwater natural gas source. Sediment samples were taken and analyzed for potential electron acceptors coupled to AOM.
A Boetius, A Kappler, A Pernthaler, A Vigneron, AA Raghoebarsing, AJB Zehnder, AJB Zehnder, AJM Stams, AK Manske, Alfons JM Stams, B van den Bogert, BK Harrison, BM van Breukelen, C Blodau, C Quast, Caroline M Plugge, CJ Schubert, CS Martens, Diego A Suarez-Zuluaga, EJ Beal, EJ Beal, EL Grossman, G Eller, G Wegener, G Zhang, GC Jagersma, H Daims, HJ Mills, J Harder, JG Caporaso, JJ Moran, JJ Moran, JMH van Diggelen, JS Deutzmann, JT Beatty, K Knittel, K Knittel, K Yanagawa, KA Smemo, KEA Segarra, KEA Segarra, KF Ettwig, KF Ettwig, KF Ettwig, KG Lloyd, KG Lloyd, KU Hinrichs, L Schreiber, LL Stookey, LS Clesceri, M Egger, M Hamady, M Holmer, M Takeuchi, Martijn Diender, MF Haroon, Minke van Rossem, MY Yoshinaga, N Riedinger, O Sivan, Peer HA Timmers, PHA Timmers, PR Girguis, RJW Meulepas, RJW Meulepas, RT Amos, S Bertram, S Gantner, SA Crowe, SH Hu, SJ Blazewicz, SPW Hageman, T Jaeggi, T Lösekann, T Shigematsu, TM Flynn, U Schwertmann, V Gupta, VJ Orphan, VJ Orphan, VJ Orphan, VM Gorlenko, WS Reeburgh, Y Zhang, YH Chang   +84 more
core   +2 more sources