Results 11 to 20 of about 5,840 (173)

Phylogenetic and functional diverse ANME-1 thrive in Arctic hydrothermal vents [PDF]

FEMS Microbiology Ecology, 2022
AbstractThe methane-rich areas, the Loki's Castle vent field and the Jan Mayen vent field at the Arctic Mid Ocean Ridge (AMOR), host abundant niches for anaerobic methane-oxidizers, which are predominantly filled by members of the ANME-1. In this study, we used a metagenomic-based approach that revealed the presence of phylogenetic and functional ...
Francesca Vulcano, Cedric Jasper Hahn, Desiree L Roerdink   +2 more
exaly   +7 more sources

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

Environmental 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, Junjie Hou, Jinjie Zhou, Dayu Zou, Hanyun Zhang, Qiaoli Ma, Meng Li   +6 more
doaj   +2 more sources

Enrichment of a microbial community performing anaerobic oxidation of methane in a continuous high-pressure bioreactor [PDF]

BMC Microbiology, 2011
Background Anaerobic oxidation of methane coupled to sulphate reduction (SR-AOM) prevents more than 90% of the oceanic methane emission to the atmosphere.
Wang Fengping, Zhao Xianxian, Maignien Loïs, Zhang Yu, Boon Nico   +4 more
doaj   +4 more sources

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

Frontiers 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, Mark Alexander Lever, Yuki Morono, Fumio Inagaki, Fumio Inagaki, Andreas P. Teske   +5 more
doaj   +2 more sources

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

Sci 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, Carrier V, Svenning MM, Panieri G, Vonnahme TR, Klasek S, Niemann H.   +6 more
europepmc   +7 more sources

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

ISME 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, Røy H, McGlynn SE, Jørgensen BB.   +3 more
europepmc   +5 more sources

Structure and Spatial Heterogeneity of Chemosynthesis-Based Deep-Sea Archaeal and Bacterial Communities in Western South Atlantic. [PDF]

Ecol Evol
We report an extensive investigation of prokaryotic communities from a methane cold‐seep area in the Western South Atlantic Ocean (Southern Brazil) employing a broad sample set, including three distinct geographic areas (A, C and E) across a depth gradient (up to 18 m below the seafloor) related to the sulfate–methane transition zone (SMTZ).
Lopes Simão TL, Felix Ribeiro KA, Dias R, Augustin AH, Rodrigues LF, Miller DJ, Viana AR, Triplett EW, Ketzer JMM, Giongo A, Eizirik E, Medina-Silva R.   +11 more
europepmc   +2 more sources

Marine Cold Seep ANME-2/SRB Consortia Produce Their Lipid Biomass From Inorganic Carbon. [PDF]

Environ Microbiol
Lipid‐stable isotope probing (SIP) experiments in Astoria Canyon sediments revealed that both ANME‐2 and SRB primarily assimilate dissolved inorganic carbon (DIC or HCO3‐), not methane, into biomass. SRB‐specific lipids showed eightfold higher DI13C‐assimilation than ANME lipids, suggesting SRB directly assimilate DIC, while ANME assimilate an ...
Stock L, Wegener G, Wang Y, Zander Y, Elvert M.   +4 more
europepmc   +2 more sources

Beyond Methane Oxidation: The Protein Landscape of ANME-2a Reveals an Integrated System for Diazotrophy and Membrane Fortification. [PDF]

Environ Microbiol Rep
A protein interaction network of ANME‐2a uncovers a modular blueprint where core methane oxidation is energetically coupled to nitrogen fixation and membrane lipid biosynthesis. This integrated system explains the archaeon's metabolic autonomy and resilience in its extreme deep‐sea niche.
Silva SSE, de Avila NB, da Silva AW, da Silva LRF, Prado MR, Beppler MA, Dos Santos AR.   +6 more
europepmc   +2 more sources

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

mSystems, 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, Yingdong Li, Cheng Zhong, Zhimeng Xu, Guangyuan Lu, Hongmei Jing, Hongbin Liu   +6 more
doaj   +1 more source