Results 51 to 60 of about 1,467 (169)

Spatial Partitioning of Microbial Functional Potential Suggests Complex Nitrogen Cycling in a Subterranean Estuary

Environmental Microbiology, Volume 28, Issue 8, August 2026.
Microbial communities in a Mediterranean subterranean estuary show spatially structured nitrogen‐cycling potential across hydrochemical zones. Microbial properties, more than environmental variables, predict NO2− and NH4+ concentrations, highlighting their key role in controlling nitrogen transformations prior to submarine groundwater discharge ...
Daniel Romano‐Gude, Nestor Arandia‐Gorostidi, Catalina Mena, Marc Diego‐Feliu, Bella Almillategui, Anna J. Székely, Stefan Bertilsson, Andrea G. Bravo, Jesus Carrera, Cristina Romera‐Castillo, Albert Folch, Jordi Garcia‐Orellana, Valentí Rodellas, Clara Ruiz‐González   +13 more
wiley   +1 more source

Rapid Reactivation of Deep Subsurface Microbes in the Presence of C-1 Compounds

Microorganisms, 2015
Microorganisms in the deep biosphere are believed to conduct little metabolic activity due to low nutrient availability in these environments. However, destructive penetration to long-isolated bedrock environments during construction of underground waste
Pauliina Rajala, Malin Bomberg, Riikka Kietäväinen, Ilmo Kukkonen, Lasse Ahonen, Mari Nyyssönen, Merja Itävaara   +6 more
doaj   +1 more source

Extraordinary methane levels in a small bar‐built tropical estuary

Limnology and Oceanography Letters, Volume 11, Issue 4, July 2026.
Abstract Small estuaries link uplands and nearshore marine environments but are understudied in many regions. We quantified spatial and temporal variability in CH4, CO2, nutrients, and organic matter in a small, deep, bar‐built tropical estuary in Fajardo, Puerto Rico.
William H. McDowell, Tatiana Barreto‐Vélez, Ricardo Colón‐Rivera, Jody D. Potter   +3 more
wiley   +1 more source

State-of the-Art Constraint-Based Modeling of Microbial Metabolism: From Basics to Context-Specific Models with a Focus on Methanotrophs

Microorganisms, 2023
Methanotrophy is the ability of an organism to capture and utilize the greenhouse gas, methane, as a source of energy-rich carbon. Over the years, significant progress has been made in understanding of mechanisms for methane utilization, mostly in ...
Mikhail A. Kulyashov, Semyon K. Kolmykov, Tamara M. Khlebodarova, Ilya R. Akberdin   +3 more
doaj   +1 more source

Tracing the origins of metalimnetic methane in a stratified large lake: Insights from high‐resolution mapping and three‐dimensional hydrodynamic modeling

Limnology and Oceanography Letters, Volume 11, Issue 4, July 2026.
Abstract Methane (CH4) accumulation in the oxic metalimnion is a common yet poorly resolved feature of deep stratified lakes. In Lake Geneva, lateral transport from the Rhône delta has been suggested but lacks spatial validation. Here, we quantify the role of lateral advection in shaping metalimnetic CH4 using high‐resolution in situ CH4 measurements ...
Santona Khatun, Roberto Grilli, Abolfazl Irani Rahaghi, Tomy Doda, Damien Bouffard, Carsten J. Schubert, Jérôme Chappellaz, Marie‐Elodie Perga   +7 more
wiley   +1 more source

Assessing methanotrophy and carbon fixation for biofuel production by Methanosarcina acetivorans [PDF]

Microbial Cell Factories, 2016
Methanosarcina acetivorans is a model archaeon with renewed interest due to its unique reversible methane production pathways. However, the mechanism and relevant pathways implicated in (co)utilizing novel carbon substrates in this organism are still not fully understood.
Nazem-Bokaee, Hadi, Gopalakrishnan, Saratram, Ferry, James G., Wood, Thomas K., Maranas, Costas D.   +4 more
openaire   +2 more sources

Microbial hauberks: composition and function of surface layer proteins in gammaproteobacterial methanotrophs

Applied and Environmental Microbiology
Many species of proteobacterial methane-consuming bacteria (methanotrophs) form a hauberk-like envelope represented by a surface (S-) layer protein (SLP) matrix.
Richard Hamilton, William Gebbie, Chynna Bowman, Alex Mantanona, Marina G. Kalyuzhnaya   +4 more
doaj   +1 more source

Origin of Sedimentary BHPs Along a Mississippi River–Gulf of Mexico Export Transect: Insights From Spatial and Density Distributions

Frontiers in Marine Science, 2019
We investigated the origin of sedimentary bacteriohopanepolyols (BHPs) in low-density (<1.6 g cm–3), mesodensity (1.6–2.0 and 2.0–2.5 g cm–3) and high-density fractions (>2.5 g cm–3) as well as unfractionated bulk samples in a highly dynamic ...
Stephanie Kusch, Julio Sepúlveda, Stuart G. Wakeham   +2 more
doaj   +1 more source

Revising the Magnitude and Trends of the Global Methane Soil Sink With Process‐Based, Machine‐Learning, and Atmospheric Inversion Modeling Approaches

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 7, July 2026.
Abstract Methane (CH4) oxidation by microbes is the largest biological sink of global methane, yet its magnitude and long‐term variability remain uncertain. Here, we combined process‐based (PB), machine‐learning (ML), and atmospheric inversion approaches to evaluate the global methane soil sinks and its implication for the atmospheric CH4 budget in ...
Youmi Oh, Licheng Liu, Jaehyun Lee, Lori Bruhwiler, Xin Lan, Sylvia Michel, Sourish Basu, John B. Miller, Qing Zhu, Sparkle Malone, Gavin McNicol, Qianlai Zhuang   +11 more
wiley   +1 more source

Enhancing the Advanced Lake Biogeochemistry Model for Application to Thermokarst Lakes on Qinghai‐Tibet Plateau

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 7, July 2026.
Abstract Thermokarst lakes on Qinghai‐Tibet Plateau (QTP) are significant sources of greenhouse gas emissions, yet the underlying governing processes remain poorly understood. This study refines the Advanced Lake Biogeochemistry Model (ALBM) to characterize the unique environmental and biogeochemical processes of QTP thermokarst lakes. Key improvements
Jiahui Lin, Lei Wang, Zeli Tan, Tong Zhang, Hongyu Zhao, Zhiqiang Wei, Qian Xu, Bo Su, Yaru Feng, Hao Cui, Zhiheng Du, Wenxin Zhang, Cunde Xiao   +12 more
wiley   +1 more source