Results 11 to 20 of about 5,069 (142)

Evolutionary diversification of methanotrophic ANME-1 archaea and their expansive virome [PDF]

open access: yesNature Microbiology, 2023
Abstract ‘ Candidatus Methanophagales’ (ANME-1) is an order-level clade of archaea responsible for anaerobic methane oxidation in deep-sea sediments. The diversity, ecology and evolution of ANME-1 remain poorly understood.
Rafael Laso-Pérez   +2 more
exaly   +8 more sources

Methane cycling microorganisms drive seasonal variation of methane emission in mangrove ecosystems [PDF]

open access: yesEnvironmental Microbiome
Coastal mangroves are one of the significant hotspots of natural methane (CH4) emissions, yet the seasonal dynamics of these emissions and the underlying microbial drivers remain poorly understood.
Cui-Jing Zhang   +6 more
doaj   +2 more sources

Distribution of methane-cycling archaea in buried ridge flank sediment: community zonation, activity, and potential environmental drivers [PDF]

open access: yesFrontiers in Microbiology
Subseafloor sediments harbor Earth’s biggest reservoir of methane, with most of this methane being produced biologically by methanogenic archaea (methanogens).
Mark Alexander Lever   +5 more
doaj   +2 more sources

Methane-fuelled biofilms predominantly composed of methanotrophic ANME-1 in Arctic gas hydrate-related sediments. [PDF]

open access: yesSci Rep, 2019
AbstractSedimentary biofilms comprising microbial communities mediating the anaerobic oxidation of methane are rare. Here, we describe two biofilm communities discovered in sediment cores recovered from Arctic cold seep sites (gas hydrate pingos) in the north-western Barents Sea, characterized by steady methane fluxes.
Gründger F   +6 more
europepmc   +7 more sources

Cryptic CH4 cycling in the sulfate-methane transition of marine sediments apparently mediated by ANME-1 archaea. [PDF]

open access: yesISME J, 2019
Abstract Methane in the seabed is mostly oxidized to CO2 with sulfate as the oxidant before it reaches the overlying water column. This microbial oxidation takes place within the sulfate–methane transition (SMT), a sediment horizon where the downward diffusive flux of sulfate encounters an upward flux of methane. Across multiple sites in
Beulig F   +3 more
europepmc   +5 more sources

Genomic Insights into Niche Partitioning across Sediment Depth among Anaerobic Methane-Oxidizing Archaea in Global Methane Seeps

open access: yesmSystems, 2023
Marine sediments are important methane reservoirs. Methane efflux from the seabed is significantly restricted by anaerobic methanotrophic (ANME) archaea through a process known as anaerobic oxidation of methane (AOM).
Jiawei Chen   +6 more
doaj   +1 more source

Diversity of Anaerobic Methane Oxidizers in the Cold Seep Sediments of the Okinawa Trough

open access: yesFrontiers in Microbiology, 2022
Active cold seeps in the Okinawa Trough (OT) have been widely identified, but the sediment microbial communities associated with these sites are still poorly understood.
Ye Chen   +26 more
doaj   +1 more source

Lipidomic diversity and proxy implications of archaea from cold seep sediments of the South China Sea

open access: yesFrontiers in Microbiology, 2023
Cold seeps on the continental margins are characterized by intense microbial activities that consume a large portion of methane by anaerobic methanotrophic archaea (ANME) through anaerobic oxidation of methane (AOM).
Tingting Zhang   +21 more
doaj   +1 more source

Horizontal and vertical heterogeneity of sediment microbial community in Site F cold seep, the South China Sea

open access: yesFrontiers in Marine Science, 2022
Site F is the most vigorous cold seep known on the continental slope of the northern South China Sea. Up to now, the microbial community structures in sediments of Site F based on the high-throughput sequencing of the 16S rRNA genes have been studied ...
Xinyi Zhai   +22 more
doaj   +1 more source

ANME ‐1 archaea may drive methane accumulation and removal in estuarine sediments [PDF]

open access: yesEnvironmental Microbiology Reports, 2020
Summary ANME‐1 archaea subsist on the very low energy of anaerobic oxidation of methane (AOM). Most marine sediments shift from net AOM in the sulfate methane transition zone (SMTZ) to methanogenesis in the methane zone (MZ) below it. In White Oak River estuarine sediments, ANME‐1 comprised 99.5% of 16S rRNA genes
Richard T. Kevorkian   +3 more
openaire   +2 more sources

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