Results 141 to 150 of about 18,233 (176)
Anaerobic Degradation of Alkanes by Marine Archaea
Annual Review of Microbiology, 2022 Alkanes are saturated apolar hydrocarbons that range from their simplest form, methane, to high-molecular-weight compounds. Although alkanes were once considered biologically recalcitrant under anaerobic conditions, microbiological investigations have now identified several microbial taxa that can anaerobically degrade alkanes.
Victoria J Orphan +2 more
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Archaeal lipids trace ecology and evolution of marine ammonia-oxidizing archaea
Proceedings of the National Academy of Sciences of the United States of America, 2022 Archaeal membrane lipids are widely used for paleotemperature reconstructions, yet these molecular fossils also bear rich information about ecology and evolution of marine ammonia-oxidizing archaea (AOA). Here we identified thermal and nonthermal behaviors of archaeal glycerol dialkyl glycerol tetraethers (GDGTs) by comparing the ...
Yi Ge Zhang +2 more
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Predominant archaea in marine sediments degrade detrital proteins
Nature, 2013 Half of the microbial cells in the Earth's oceans are found in sediments. Many of these cells are members of the Archaea, single-celled prokaryotes in a domain of life separate from Bacteria and Eukaryota. However, most of these archaea lack cultured representatives, leaving their physiologies and placement on the tree of life uncertain.
Sara Kleindienst +2 more
exaly +7 more sources
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Microdiversity of uncultured marine prokaryotes: the SAR11 cluster and the marine Archaea of Group I
Molecular Ecology, 2000AbstractThe SAR11 cluster and the Group I of marine Archaea represent probably the best two examples of uncultured marine prokaryotes of widespread occurrence. To study their microdiversity and distribution, a total of 81 and 48 clones, respectively, were sequenced from Mediterranean and Antarctic waters at different locations and depths.
Jesus Garcia-Martinez +1 more
exaly +3 more sources
Diverse viruses of marine archaea discovered using metagenomics
Environmental Microbiology, 2022Abstract During the past decade, metagenomics became a method of choice for the discovery of novel viruses. However, host assignment for uncultured viruses remains challenging, especially for archaeal viruses, which are grossly undersampled compared to viruses of bacteria and eukaryotes.
Zhou, Yifan +5 more
openaire +3 more sources
High abundance of Archaea in Antarctic marine picoplankton
Nature, 1994Archaea (archaebacteria) constitute one of the three major evolutionary lineages of life on Earth. Previously these prokaryotes were thought to predominate in only a few unusual and disparate niches, characterized by hypersaline, extremely hot, or strictly anoxic conditions.
Edward Delong +2 more
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Annual Review of Marine Science, 2019
Archaea are ubiquitous and abundant members of the marine plankton. Once thought of as rare organisms found in exotic extremes of temperature, pressure, or salinity, archaea are now known in nearly every marine environment. Though frequently referred to collectively, the planktonic archaea actually comprise four major phylogenetic groups, each with ...
Alyson E, Santoro +2 more
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Archaea are ubiquitous and abundant members of the marine plankton. Once thought of as rare organisms found in exotic extremes of temperature, pressure, or salinity, archaea are now known in nearly every marine environment. Though frequently referred to collectively, the planktonic archaea actually comprise four major phylogenetic groups, each with ...
Alyson E, Santoro +2 more
openaire +2 more sources
Archaea of the Miscellaneous Crenarchaeotal Group are abundant, diverse and widespread in marine sediments [PDF]
ISME Journal, 2012 Abstract Members of the highly diverse Miscellaneous Crenarchaeotal Group (MCG) are globally distributed in various marine and continental habitats. In this study, we applied a polyphasic approach (rRNA slot blot hybridization, quantitative PCR (qPCR) and catalyzed reporter deposition FISH) using newly developed probes and primers for
Rudolf Amann +2 more
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Expansion of the Marine Archaea
Science, 2001One group of the Archaea (ancient bacteria) began life inhabiting the hyperthermal vents of the oceans but then suddenly expanded to more temperate ocean niches during the Cretaceous. In a Perspective, [Smith][1] discusses new work ([ Kuypers et al .][2]) pinpointing the exact time of this archaeal expansion within the mid-Cretaceous, and the changing ...
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Anaerobic oxidation of ethane by archaea from a marine hydrocarbon seep
Nature, 2019Ethane is the second most abundant component of natural gas in addition to methane, and-similar to methane-is chemically unreactive. The biological consumption of ethane under anoxic conditions was suggested by geochemical profiles at marine hydrocarbon seeps1-3, and through ethane-dependent sulfate reduction in slurries4-7.
Oliver Lechtenfeld +2 more
exaly +4 more sources