Results 51 to 60 of about 525 (111)

Methane‐Driven Arsenic Biogeochemical Cycling in Deep‐Sea Cold Seeps: Implications for Oceanic Arsenic Geochemistry

Geophysical Research Letters
Arsenic accumulation in seafloor cold seeps is poorly understood. Here, we investigate the interplay between arsenic and methane biogeochemical cycles at the Haima cold seep, South China Sea.
Jiwei Li, Xiyang Dong, Shuangquan Liu, Wanli Chen, Jin Liao, Chuwen Zhang, Shijie Bai, Hengchao Xu, Jian Zhang, Shun Chen, Kaiwen Ta, Shamik Dasgupta, Xiaotong Peng   +12 more
doaj   +1 more source

Anaerobic methanotrophic communities thrive in deep submarine permafrost

Scientific Reports, 2018
Thawing submarine permafrost is a source of methane to the subsurface biosphere. Methane oxidation in submarine permafrost sediments has been proposed, but the responsible microorganisms remain uncharacterized.
Matthias Winkel, Julia Mitzscherling, Pier P. Overduin, Fabian Horn, Maria Winterfeld, Ruud Rijkers, Mikhail N. Grigoriev, Christian Knoblauch, Kai Mangelsdorf, Dirk Wagner, Susanne Liebner   +10 more
doaj   +1 more source

Effect of ammonium concentration on methane oxidation and CO2 removal in an anaerobic biotrickling filter treating synthetic landfill gas and leachate

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND Landfill gas (LFG) and leachate are commonly treated separately through energy‐intensive processes. This study evaluated the integration of both streams in an anaerobic biotrickling filter (BTF) to achieve simultaneous methane (CH4) and carbon dioxide (CO2) removal coupled with ammonium (NH4+) transformation, and how the microbial ...
Cecilia Lizeth Alvarez‐Guzmán, Karla María Muñoz‐Páez, Alejandro Vargas, Idania Valdez‐Vazquez   +3 more
wiley   +1 more source

Diversity, Methane Oxidation Activity, and Metabolic Potential of Microbial Communities in Terrestrial Mud Volcanos of the Taman Peninsula

Microorganisms
Microbial communities of terrestrial mud volcanoes are involved in aerobic and anaerobic methane oxidation, but the biological mechanisms of these processes are still understudied.
Alexander I. Slobodkin, Igor I. Rusanov, Galina B. Slobodkina, Aleksandra R. Stroeva, Nikolay A. Chernyh, Nikolai V. Pimenov, Alexander Y. Merkel   +6 more
doaj   +1 more source

Quantifying temporal dynamics of greenhouse gas emissions in lake mesocosms: Deployment of a low‐cost measurement system

Limnology and Oceanography: Methods, EarlyView.
Abstract Greenhouse gas (GHG) emissions from freshwater ecosystems contribute significantly to global carbon budgets, yet they remain poorly constrained due to limited high‐frequency measurements. We tested a low‐cost, high‐frequency GHG measurement system in a long‐term mesocosm experiment in Lemming, Denmark, over a 7‐month period, focusing on CO2 ...
Tuba Bucak, Eti Ester Levi, Claus Melvad, Jianming Deng, Mikhail Mastepanov, Robert Ladwig, Thomas Alexander Davidson   +6 more
wiley   +1 more source

Capturing methane with recombinant soluble methane monooxygenase and recombinant methyl‐coenzyme M reductase

Microbial Biotechnology
Methane capture via oxidation is considered one of the ‘Holy Grails’ of catalysis (Tucci and Rosenzweig, 2024). Methane is also a primary greenhouse gas that has to be reduced by 1.2 billion metric tonnes in 10 years to decrease global warming by only 0 ...
Viviana Sanchez‐Torres, Thomas K. Wood
doaj   +1 more source

Microbially driven organic carbon cycling at the land−sea interface: Advances and an integrated study framework

mLife, EarlyView.
Abstract The land−sea interface is a vital component of global biogeochemical cycles, where microorganisms drive the cycling of carbon, nitrogen, and sulfur. This review synthesizes the research progress from representative land−sea interfaces to elucidate how the microbial community structure and metabolic function influence the mobilization ...
Quanrui Chen, Kai Tang, Zhili He, Meng Li, Jun Yang, Weidong Zhai, Qiang Zheng, Nianzhi Jiao   +7 more
wiley   +1 more source

Deep Sediment-Sourced Methane Contribution to Shallow Sediment Organic Carbon: Atwater Valley, Texas-Louisiana Shelf, Gulf of Mexico

Energies, 2015
Coastal methane hydrate deposits are globally abundant. There is a need to understand the deep sediment sourced methane energy contribution to shallow sediment carbon relative to terrestrial sources and phytoplankton.
Richard B. Coffin, Christopher L. Osburn, Rebecca E. Plummer, Joseph P. Smith, Paula S. Rose, Kenneth S. Grabowski   +5 more
doaj   +1 more source

Structure and functional genes associated with carbon, nitrogen, phosphorus, and sulfur cycling processes in periphyton: A comparison between natural and artificial rivers

River, EarlyView.
Network analysis of functional genes among prokaryotes, and eukaryotes in natural and artificial rivers. Abstract Periphyton in aquatic ecosystems plays vital roles in the elemental cycle process and is vulnerable to anthropogenic interference. However, few studies have explored the elemental cycles of carbon (C), nitrogen (N), phosphorus (P), and ...
Yulu Tian, Jiezhang Mo, Jiaxin Liu, Chenghao Li, Jiahua Guo   +4 more
wiley   +1 more source

Vertical distribution of methanotrophic archaea in an iron-rich groundwater discharge zone.

PLoS ONE
Anaerobic oxidation of methane coupled to iron reduction (Fe-AOM) is a crucial process for methane removal in terrestrial environments. However, the occurrence of Fe-AOM in natural environments is rare, and the mechanisms behind the direct coupling of ...
Katsunori Yanagawa, Misaki Okabeppu, Sakiko Kikuchi, Fumito Shiraishi, Yumiko Nakajima, Akihiro Kano   +5 more
doaj   +1 more source