Archaea (archaebacteria) are a phenotypically diverse group of microorganisms that share a common evolutionary history. There are four general phenotypic groups of archaea: the methanogens, the extreme halophiles, the sulfate-reducing archaea, and the extreme thermophiles. In the marine environment, archaeal habitats are generally limited to shallow or deep-sea anaerobic sediments (free-living and endosymbiotic methanogens), hot springs or deep-sea hydrothermal vents (methanogens, sulfate reducers, and extreme thermophiles), and highly saline land-locked seas (halophiles). This report provides evidence for the widespread occurrence of unusual archaea in oxygenated coastal surface waters of North America. Quantitative estimates indicated that up to 2% of the total ribosomal RNA extracted from coastal bacterioplankton assemblages was archaeal. Archaeal small-subunit ribosomal RNA-encoding DNAs (rDNAs) were cloned from mixed bacterioplankton populations collected at geographically distant sampling sites. Phylogenetic and nucleotide signature analyses of these cloned rDNAs revealed the presence of two lineages of archaea, each sharing the diagnostic signatures and structural features previously established for the domain Archaea. B...Continue Reading
A definition of the domains Archaea, Bacteria and Eucarya in terms of small subunit ribosomal RNA characteristics
Archaeal phylogeny: reexamination of the phylogenetic position of Archaeoglobus fulgidus in light of certain composition-induced artifacts
Can microscale chemical patches persist in the sea? Microelectrode study of marine snow, fecal pellets
Analysis of intact tetraether lipids in archaeal cell material and sediments by high performance liquid chromatography/atmospheric pressure chemical ionization mass spectrometry
Thermococcus peptonophilus sp. nov., a fast-growing, extremely thermophilic archaebacterium isolated from deep-sea hydrothermal vents
Inhibitory activity against the fish pathogen Lactococcus garvieae produced by Lactococcus lactis TW34, a lactic acid bacterium isolated from the intestinal tract of a Patagonian fish
Kosmotoga arenicorallina sp. nov. a thermophilic and obligately anaerobic heterotroph isolated from a shallow hydrothermal system occurring within a coral reef, southern part of the Yaeyama Archipelago, Japan, reclassification of Thermococcoides shengliensis as Kosmotoga shengliensis comb. nov., and emended description of the genus Kosmotoga
Thermogladius shockii gen. nov., sp. nov., a hyperthermophilic crenarchaeote from Yellowstone National Park, USA
Microbial biodiversity in a Malaysian oil field and a systematic comparison with oil reservoirs worldwide
Molecular analysis of the sulfate reducing and archaeal community in a meromictic soda lake (Mono Lake, California) by targeting 16S rRNA, mcrA, apsA, and dsrAB genes
Phylogenetic screening of ribosomal RNA gene-containing clones in Bacterial Artificial Chromosome (BAC) libraries from different depths in Monterey Bay
16S rDNA-based analysis of dominant bacterial populations associated with early life stages of coho salmon (Oncorhynchus kisutch)
Use of 16S rRNA gene based clone libraries to assess microbial communities potentially involved in anaerobic methane oxidation in a Mediterranean cold seep
Spatial and temporal distribution of the vibrionaceae in coastal waters of Hawaii, Australia, and France
Prokaryote diversity and virus abundance in shallow hydrothermal vents of the Mediterranean Sea (Panarea Island) and the Pacific Ocean (north Sulawesi-Indonesia)
Relationship of geographic distance, depth, temperature, and viruses with prokaryotic communities in the eastern tropical Atlantic Ocean.
Phylogenetic diversity and spatial distribution of the microbial community associated with the Caribbean deep-water sponge Polymastia cf. corticata by 16S rRNA, aprA, and amoA gene analysis
Archaeal diversity at the great salt plains of Oklahoma described by cultivation and molecular analyses.
Molecular analyses of the microbial community composition of an anoxic basin of a municipal wastewater treatment plant reveal a novel lineage of proteobacteria.
The influence of different land uses on the structure of archaeal communities in Amazonian anthrosols based on 16S rRNA and amoA genes
Active archaeal communities at cold seep sediments populated by Siboglinidae tubeworms from the Storegga Slide.
Geomicrobiological properties of ultra-deep granitic groundwater from the Mizunami Underground Research Laboratory (MIU), central Japan.
Molecular characterization and geological microenvironment of a microbial community inhabiting weathered receding shale cliffs.
Influence of deglaciation on microbial communities in marine sediments off the coast of Svalbard, Arctic Circle.
Community structure and function of planktonic Crenarchaeota: changes with depth in the South China Sea.
Comparative geochemical and microbiological characterization of two thermal pools in the Uzon Caldera, Kamchatka, Russia.
Dynamic microbial community associated with iron-arsenic co-precipitation products from a groundwater storage system in Bangladesh.
Microbial community compositional shifts in bleached colonies of the Brazilian reef-building coral Siderastrea stellata.
Structure and community composition of sprout-like bacterial aggregates in a Dinaric Karst subterranean stream
Phylogenetic diversity and community structure of the symbionts associated with the coralline sponge Astrosclera willeyana of the Great Barrier Reef
An improved method for single cell isolation of prokaryotes from meso-, thermo- and hyperthermophilic environments using micromanipulation
Microbial population in the biomass adhering to supporting material in a packed-bed reactor degrading organic solid waste
Molecular identification and dynamics of microbial communities in reactor treating organic household waste
Phylogenetic and functional marker genes to study ammonia-oxidizing microorganisms (AOM) in the environment.
Efficient treatment of garbage slurry in methanogenic bioreactor packed by fibrous sponge with high porosity
Archaeal community dynamics and detection of ammonia-oxidizing archaea during composting of cattle manure using culture-independent DNA analysis
Recent advances in genomic sequencing has led to the discovery of new strains of Archaea and shed light on their evolutionary history. Discover the latest research on Archaeogenetics here.