Results 11 to 20 of about 15,799 (161)

Are Marine Group II Euryarchaeota significant contributors to tetraether lipids in the ocean? [PDF]

Proceedings of the National Academy of Sciences, 2014
The first line of evidence is the presence of GDGTs, including crenarchaeol, in suspended particulate matter (SPM) at 83 m, the archaeal community of which is nearly exclusively composed of MG-II (>94% of archaeal reads) (table 1 in ref. 1) as determined
Hopmans, E.C., Schouten, S., Sinninghe Damsté, J.S., van der Meer, M.T.J., Villanueva, L.   +4 more
core   +5 more sources

Detection of Euryarchaeota and Crenarchaeota in an oxic basalt aquifer [PDF]

FEMS Microbiology Ecology, 2003
Groundwater from an oxic, fractured basalt aquifer was examined for the presence of Archaea. DNA was extracted from cells concentrated from groundwater collected from five wells penetrating the eastern Snake River Plain Aquifer (Idaho, USA). Polymerase chain reaction (PCR) amplification of 16S rDNA was performed with Archaea-specific primers using both
Seán P, O'Connell, R Michael, Lehman, Oona, Snoeyenbos-West, Vern D, Winston, David E, Cummings, Mary E, Watwood, Frederick S, Colwell   +6 more
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Isolation of a methyl-reducing methanogen outside the Euryarchaeota

Goldschmidt2023 abstracts, 2023
Abstract Methanogenic archaea are main contributors to methane emissions, and thus play a crucial role in carbon cycling and global warming. Until recently, methanogens were confined to the phylum Euryarchaeota, but metagenomic studies revealed the presence of genes encoding the methyl coenzyme M reductase complex in other archaeal clades ...
Kejia Wu, Lei Zhou, Guillaume Tahon, Laiyan Liu, Jiang Li, Jianchao Zhang, Fengfeng Zheng, Chengpeng Deng, Wenhao Han, Liping Bai, Lin Fu, Xiuzhu Dong, Chuanlun Zhang, Thijs J. G. Ettema, Diana Z. Sousa, Lei Cheng   +15 more
openaire   +3 more sources

Novel Abundant Oceanic Viruses of Uncultured Marine Group II Euryarchaeota [PDF]

Current Biology, 2017
Marine group II Euryarchaeota (MG-II) are among the most abundant microbes in oceanic surface waters [1-4]. So far, however, representatives of MG-II have not been cultivated, and no viruses infecting these organisms have been described. Here, we present complete genomes for three distinct groups of viruses assembled from metagenomic sequence datasets ...
Alon Philosof, Natalya Yutin, José Flores-Uribe, Itai Sharon, Eugene V. Koonin, Oded Béjà   +5 more
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Crenarchaeota and Euryarchaeota in temperate estuarine sediments [PDF]

Journal of Applied Microbiology, 2001
Application of molecular techniques to ecological studies has unveiled a wide diversity of micro-organisms in natural communities, previously unknown to microbial ecologists. New lineages of Archaea were retrieved from several non-extreme environments, showing that these micro-organisms are present in a large variety of ecosystems.
C, Abreu, G, Jurgens, P, De Marco, A, Saano, A A, Bordalo   +4 more
openaire   +2 more sources

Niche differentiation among annually recurrent coastal Marine Group II Euryarchaeota [PDF]

The ISME Journal, 2019
Abstract Since the discovery of archaeoplankton in 1992, the euryarchaeotal Marine Group II (MGII) remains uncultured and less understood than other planktonic archaea. We characterized the seasonal dynamics of MGII populations in the southern North Sea on a genomic and microscopic level over the course of four years.
Luis H Orellana, T Ben Francis, Karen Krüger, Hanno Teeling, Marie-Caroline Müller, Bernhard M Fuchs, Konstantinos T Konstantinidis, Rudolf I Amann   +7 more
openaire   +3 more sources

Trace methane oxidation studied in several Euryarchaeota under diverse conditions [PDF]

Archaea, 2004
We used 13C‐labeled methane to document the extent of trace methane oxidation by Archaeoglobus fulgidus, Archaeoglobus lithotrophicus, Archaeoglobus profundus, Methanobacterium thermoautotrophicum, Methanosarcina barkeri and Methanosarcina acetivorans.
James J, Moran, Christopher H, House, Katherine H, Freeman, James G, Ferry   +3 more
openaire   +2 more sources

Multiple Holliday junction resolving enzyme activities in the Crenarchaeota and Euryarchaeota [PDF]

FEBS Letters, 2001
Holliday junction resolving enzymes are required by all life forms that catalyse homologous recombination, including all cellular organisms and many bacterial and eukaryotic viruses. Here we report the identification of three distinct Holliday junction resolving enzyme activities present in two highly divergent archaeal species.
Kvaratskhelia, Mamuka, Wardleworth, Benjamin N, White, Malcolm F   +2 more
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The Discussion Goes on: What Is the Role of Euryarchaeota in Humans? [PDF]

Archaea, 2010
The human body (primarily the intestinal tract, the oral cavity, and the skin) harbours approximately 1,000 different bacterial species. However, the number of archaeal species known to colonize man seems to be confined to a handful of organisms within the class Euryarchaeota (including Methanobrevibacter smithii, M.
H.-P. Horz, G. Conrads
openaire   +4 more sources

Plasmids fromEuryarchaeota

Microbiology Spectrum, 2014
ABSTRACT Many plasmids have been described in Euryarchaeota , one of the three major archaeal phyla, most of them in salt-loving haloarchaea and hyperthermophilic Thermococcales . These plasmids resemble bacterial plasmids in terms of size (from small plasmids encoding only one gene
Forterre, Patrick, Krupovic, Mart, Raymann, Kasie, Soler, Nicolas   +3 more
openaire   +5 more sources