Results 31 to 40 of about 1,271,647 (216)
Microbial community structure and metabolic activities have profound impacts on biogeochemical processes in marine sediments. Functional bacteria such as nitrate- and sulfate-reducing bacteria respond to redox gradients by coupling specific reactions ...
Wenxiu Wang +6 more
doaj +1 more source
Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are bacterial membrane lipids that are widely used in terrestrial paleoclimatic reconstructions. Recent studies have reported that brGDGTs can also be produced by marine bacteria.
Zhiyu Zeng +13 more
doaj +1 more source
Distinct methane-dependent biogeochemical states in Arctic seafloor gas hydrate mounds
Archaea in marine sediment control the transfer of methane to the ocean, but microbial dynamics in these environments are poorly understood. Here the authors investigate marine sediments in the high Arctic, showing how methane influx quickly increases ...
Scott A. Klasek +7 more
doaj +1 more source
Archaea are differentiated from the other two domains of life by their biomolecular characteristics. One such characteristic is the unique structure and composition of their lipids.
Kai P. Law +9 more
doaj +1 more source
Global Warming and Mass Extinctions Associated With Large Igneous Province Volcanism
Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
David P. G. Bond, Yadong Sun
wiley +1 more source
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
Selenocysteine, pyrrolysine and the unique energy metabolism of methanogenic archaea [PDF]
Methanogenic archaea are a group of strictly anaerobic microorganisms characterized by their strict dependence on the process of methanogenesis for energy conservation.
Rother, Michael +3 more
core +1 more source
Shah Walter, SunitaIn the past three decades, it has been established that archaea play important biogeochemical roles in the marine water column and sediments, but there remains a gap in knowledge about the phenology of these marine planktic archaea ...
Guider, Justin
core +1 more source
Measurement(s) microbial community Technology Type(s) marine metagenome Sample Characteristic - Organism Bacteria • Archaea Sample Characteristic - Environment marine ...
Yosuke Nishimura, Susumu Yoshizawa
doaj +1 more source
Stratified Communities of Active Archaea in Deep Marine Subsurface Sediments [PDF]
ABSTRACT Archaeal 16S rRNA was extracted from samples of deep marine subsurface sediments from Peru Margin site 1227, Ocean Drilling Program leg 201. The amounts of archaeal 16S rRNA in each extract were quantified by serial dilution and reverse transcription (RT)-PCR.
Ketil B, Sørensen, Andreas, Teske
openaire +3 more sources

