Results 1 to 10 of about 5,069 (142)

Physiological versatility of ANME-1 and Bathyarchaeotoa-8 archaea evidenced by inverse stable isotope labeling [PDF]

Microbiome
Background The trophic strategy is one key principle to categorize microbial lifestyles, by broadly classifying microorganisms based on the combination of their preferred carbon sources, electron sources, and electron sinks.
Xiuran Yin, Guowei Zhou, Mingwei Cai, Tim Richter-Heitmann, Qing-Zeng Zhu, Mara Maeke, Ajinkya C. Kulkarni, Rolf Nimzyk, Marcus Elvert, Michael W. Friedrich   +9 more
doaj   +4 more sources

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, H Dahle   +2 more
exaly   +7 more sources

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

Environmental Microbiology
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 ...
Gunter Wegener, Marcus Elvert, Yueqing Wang   +2 more
exaly   +3 more sources

Deep-branching ANME-1c archaea grow at the upper temperature limit of anaerobic oxidation of methane

Frontiers in Microbiology, 2022
In seafloor sediments, the anaerobic oxidation of methane (AOM) consumes most of the methane formed in anoxic layers, preventing this greenhouse gas from reaching the water column and finally the atmosphere.
Andreas Teske, Gunter Wegener, Teske Andreas   +2 more
exaly   +3 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

Electron Acceptor Availability Shapes Anaerobically Methane Oxidizing Archaea (ANME) Communities in South Georgia Sediments

Frontiers in Microbiology, 2021
Anaerobic methane oxidizing archaea (ANME) mediate anaerobic oxidation of methane (AOM) in marine sediments and are therefore important for controlling atmospheric methane concentrations in the water column and ultimately the atmosphere.
Annika Schnakenberg, David A Aromokeye, Ajinkya Kulkarni   +2 more
exaly   +3 more sources

Fine-Scale Community Structure Analysis of ANME in Nyegga Sediments with High and Low Methane Flux

Frontiers in Microbiology, 2012
To obtain knowledge on how regional variations in methane seepage rates influence the stratification, abundance and diversity of anaerobic methanotrophs (ANME) we analyzed the vertical microbial stratification in a gravity core from a methane micro ...
Irène Roalkvam, HÅkon Dahle, Yifeng Chen   +2 more
exaly   +3 more sources

Atomic resolution structures of the methane-activating enzyme in anaerobic methanotrophy reveal extensive post-translational modifications [PDF]

Nature Communications
Anaerobic methanotrophic archaea (ANME) are crucial to planetary carbon cycling. They oxidise methane in anoxic niches by transferring electrons to nitrate, metal oxides, or sulfate-reducing bacteria.
Marie-C. Müller, Martijn Wissink, Priyadarshini Mukherjee, Nicole Von Possel, Rafael Laso-Pérez, Sylvain Engilberge, Philippe Carpentier, Jörg Kahnt, Gunter Wegener, Cornelia U. Welte, Tristan Wagner   +10 more
doaj   +3 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

Millimetre-Scale Stratification of Microbial Communities in Hydrothermal Sediments. [PDF]

Environ Microbiol
Zooming into the millimetre‐scale spatial distribution of organic molecules in hydrothermally impacted sediments using mass spectrometry imaging reveals a distinct lipid zonation with abrupt transitions at critical redox interfaces. This zonation reflects a pronounced stratification of diverse microbial communities and highlights surprisingly ...
Groninga J, Liu W, Wörmer L, Altun J, Teske A, Hinrichs KU.   +5 more
europepmc   +2 more sources