Results 71 to 80 of about 3,918 (220)

Microbial Ecology of Methanotrophy in Streams Along a Gradient of CH4 Availability

open access: yesFrontiers in Microbiology, 2020
Despite the recognition of streams and rivers as sources of methane (CH4) to the atmosphere, the role of CH4 oxidation (MOX) in these ecosystems remains poorly understood to date.
Alexandre Bagnoud   +4 more
doaj   +1 more source

Origin and temporal variability of unusually low δ13C-DOC values in two High Arctic catchments [PDF]

open access: yes, 2016
The stable carbon isotopic composition of dissolved organic matter (δ13C-DOC) reveals information about its source and extent of biological processing. Here we report the lowest δ13C-DOC values (−43.8‰) measured to date in surface waters.
Amon   +83 more
core   +2 more sources

Microbial Community Composition and Function in Jiangsu Oil Reservoir Cores, China

open access: yesEnvironmental Microbiology Reports, Volume 17, Issue 6, December 2025.
Shale oil reservoirs meet the basic requirements for microbial growth. Microorganisms, crude oil and water are distributed within the pore spaces of the reservoir formation. In situ microorganisms utilise crude oil for growth and reproduction. ABSTRACT Shale oil reservoirs are typically characterised by elevated temperatures, confined spaces and ...
Bo‐Wen Wang   +10 more
wiley   +1 more source

Soil Properties Interacting With Microbial Metagenome in Decreasing CH4 Emission From Seasonally Flooded Marshland Following Different Stages of Afforestation

open access: yesFrontiers in Microbiology, 2022
Wetlands are the largest natural source of terrestrial CH4 emissions. Afforestation can enhance soil CH4 oxidation and decrease methanogenesis, yet the driving mechanisms leading to these effects remain unclear.
Qian Zhang   +11 more
doaj   +1 more source

Molecular analysis of microbial 16S rRNA, mcrA, dsrAB and pmoA genes from deep-sea hydrothermal vent and cold seep sites

open access: green, 2008
Methane and sulfide are primary sources of energy supporting the dense macrobiological communities often found in cold seep areas and both free-living and symbiotic microorganisms depend on energy provided by the sharp gradient of sulfide and the reservoir of methane in the underlying sediments. In deep-sea hydrothermal vent areas, sulfide is typically
Andrew J. Reed
openalex   +2 more sources

Different parts of the mussel Gigantidas haimaensis holobiont responded differently to deep‐sea sampling stress

open access: yesIntegrative Zoology, Volume 20, Issue 6, Page 1294-1305, November 2025.
Symbiotic gill and nonsymbiotic mantle of mussel Gigantidas haimaensis responded differently to deep‐sea sampling stress caused by acute environmental changes. Sharply increased transcription factors potentially play key roles in initiating the response of sampled deep‐sea macrobenthos to the sampling stress.
Guoyong YAN   +4 more
wiley   +1 more source

Metagenomic analysis of nitrogen and methane cycling in the Arabian Sea oxygen minimum zone [PDF]

open access: yes, 2016
Oxygen minimum zones (OMZ) are areas in the global ocean where oxygen concentrations drop to below one percent. Low oxygen concentrations allow alternative respiration with nitrate and nitrite as electron acceptor to become prevalent in these areas ...
Jetten, M.S.M.   +4 more
core   +3 more sources

Implementation of U.K. Earth system models for CMIP6 [PDF]

open access: yes, 2020
We describe the scientific and technical implementation of two models for a core set of experiments contributing to the sixth phase of the Coupled Model Intercomparison Project (CMIP6).
Abraham, Nathan Luke   +48 more
core   +2 more sources

Call for Standardizing Uncaria rhynchophylla as the Sole Origin of Uncariae Ramulus cum Uncis

open access: yesPhytochemical Analysis, Volume 36, Issue 7, Page 1959-1973, October 2025.
ABSTRACT Background Uncariae Ramulus cum Uncis (URCU) is a widely used traditional Chinese medicine (TCM) for treating neurodegenerative disorders. The Chinese Pharmacopeia recognizes five Uncaria species as authorized botanical sources of URCU; however, there is currently no established quality control method for individual species.
Hau‐Yee Fung   +5 more
wiley   +1 more source

Seasonality of temperature dependence of methane fluxes from natural wetlands

open access: yesFunctional Ecology, Volume 39, Issue 9, Page 2383-2397, September 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Temperature dependence is a crucial parameter in estimating methane (CH4) fluxes from natural wetlands, yet our understanding of this parameter remains inadequate. Seasonal fluctuations in water levels and ecosystem productivity lead to seasonal differences in CH4 ...
Jinshuai Li   +6 more
wiley   +1 more source

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