Results 51 to 60 of about 5,069 (142)

Rates and Microbial Players of Iron-Driven Anaerobic Oxidation of Methane in Methanic Marine Sediments

Frontiers in Microbiology, 2020
The flux of methane, a potent greenhouse gas, from the seabed is largely controlled by anaerobic oxidation of methane (AOM) coupled to sulfate reduction (S-AOM) in the sulfate methane transition (SMT).
David A. Aromokeye, David A. Aromokeye, Ajinkya C. Kulkarni, Ajinkya C. Kulkarni, Ajinkya C. Kulkarni, Marcus Elvert, Marcus Elvert, Gunter Wegener, Gunter Wegener, Susann Henkel, Susann Henkel, Sarah Coffinet, Thilo Eickhorst, Oluwatobi E. Oni, Tim Richter-Heitmann, Annika Schnakenberg, Annika Schnakenberg, Annika Schnakenberg, Heidi Taubner, Heidi Taubner, Lea Wunder, Xiuran Yin, Xiuran Yin, Qingzeng Zhu, Kai-Uwe Hinrichs, Kai-Uwe Hinrichs, Sabine Kasten, Sabine Kasten, Sabine Kasten, Michael W. Friedrich, Michael W. Friedrich   +30 more
doaj   +1 more source

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

Origin of lipid biomarkers in mud volcanoes from the Alboran Sea, western Mediterranean [PDF]

Biogeosciences, 2014
Mud volcanoes (MVs) are the most prominent indicators of active methane/hydrocarbon venting at the seafloor on both passive and active continental margins.
C. López-Rodríguez, A. Stadnitskaia, G. J. De Lange, F. Martínez-Ruíz, M. Comas   +4 more
doaj   +1 more source

Cryptic Carbon Cycle at Methane‐Seeps of the South China Sea: Evidence From Porewaters

Geophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract Anaerobic oxidation of methane (AOM) governs methane consumption at seeps, yet δ13C‐CH4 values in the sulfate‐methane transitions are commonly lower than predicted from preferential 12C utilization by methanotrophic archaea, suggesting the influence of a different methane source. To address this isotope discrepancy, we used high‐resolution ion
Jinyu Zhu, Xiaoming Miao, Hongxiang Guan, Hangyu Nan, Yiwei Zhang, Yuqian Zhang, Nengyou Wu, Sanzhong Li   +7 more
wiley   +1 more source

The Guaymas Basin Subseafloor Sedimentary Archaeome Reflects Complex Environmental Histories

iScience, 2020
Summary: We explore archaeal distributions in sedimentary subseafloor habitats of Guaymas Basin and the adjacent Sonora Margin, located in the Gulf of California, México.
Gustavo A. Ramírez, Luke J. McKay, Matthew W. Fields, Andrew Buckley, Carlos Mortera, Christian Hensen, Ana Christina Ravelo, Andreas P. Teske   +7 more
doaj   +1 more source

Spatial structure and activity of sedimentary microbial communities underlying a Beggiatoa spp. mat in a Gulf of Mexico hydrocarbon seep. [PDF]

PLoS ONE, 2010
BACKGROUND: Subsurface fluids from deep-sea hydrocarbon seeps undergo methane- and sulfur-cycling microbial transformations near the sediment surface.
Karen G Lloyd, Daniel B Albert, Jennifer F Biddle, Jeffrey P Chanton, Oscar Pizarro, Andreas Teske   +5 more
doaj   +1 more source

Overview of geothermal resource exploration and development in North Africa

Deep Underground Science and Engineering, Volume 4, Issue 4, Page 673-685, December 2025.
This article reviews geothermal exploration in North Africa, highlighting key activities, government policies, and exploration findings across Mauritania, Morocco, Algeria, Tunisia, Libya, and Egypt. The region's substantial geothermal potential, driven by tectonic activity, positions it to play a significant role in the global geothermal energy ...
Meryem Redouane
wiley   +1 more source

Habitat Diversity Sustains Ecosystem Functioning in Plateau Arid‐Region Wetlands

Ecology and Evolution, Volume 15, Issue 12, December 2025.
Habitat diversity underpins both biodiversity and functional biogeochemical processes in plateau arid‐region wetlands, thereby stabilizing ecosystem functioning. These functionally complementary habitats collectively drive critical ecosystem processes.
Chenyu Wang, Haicheng Wei, Ronglei Duan, Shi Jin, Jinxin Wen, Hongyu Li, Aiying Cheng, Chunliang Gao, Hongpan Xue, Yilin Hou   +9 more
wiley   +1 more source

Spatial Heterogeneity in Methane Biogeochemistry and Prokaryotic Community Structure in Sub‐Arctic Waterbodies in Northern Canada

Environmental Microbiology, Volume 27, Issue 12, December 2025.
Prokaryotic communities and methane dynamics differed markedly across 16 sub‐Arctic waterbodies. Maximum depth and permafrost thaw emerged as key drivers, with non‐stratified thaw‐affected sites hosting distinct communities and elevated methane fluxes, highlighting their potential role as emerging hotspots of methane emissions.
Arthur Szylit, Urania Christaki, Maialen Barret, Léa Cabrol, Laure Gandois, Antoine Sejourne, Frédéric Bouchard, Sarah Ollivier, Ludwig Jardillier   +8 more
wiley   +1 more source

Effect of freshwater mussels on the vertical distribution of anaerobic ammonia oxidizers and other nitrogen-transforming microorganisms in upper Mississippi river sediment [PDF]

PeerJ, 2017
Targeted qPCR and non-targeted amplicon sequencing of 16S rRNA genes within sediment layers identified the anaerobic ammonium oxidation (anammox) niche and characterized microbial community changes attributable to freshwater mussels.
Ellen M. Black, Michael S. Chimenti, Craig L. Just   +2 more
doaj   +2 more sources