Novel Abundant Oceanic Viruses of Uncultured Marine Group II Euryarchaeota [PDF]
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 +5 more
openaire +2 more sources
The Euryarchaeota, Nature's Medium for Engineering of Single-stranded DNA-binding Proteins [PDF]
The architecture of single-stranded DNA-binding proteins, which play key roles in DNA metabolism, is based on different combinations of the oligonucleotide/oligosaccharide binding (OB) fold. Whereas the polypeptide serving this function in bacteria contains one OB fold, the eukaryotic functional homolog comprises a complex of three proteins, each ...
Justin B, Robbins +6 more
openaire +2 more sources
Benthic microbial communities of coastal terrestrial and ice shelf Antarctic meltwater ponds. [PDF]
The numerous perennial meltwater ponds distributed throughout Antarctica represent diverse and productive ecosystems central to the ecological functioning of the surrounding ultra oligotrophic environment.
Archer, Stephen David James +4 more
core +3 more sources
Expansion of Thaumarchaeota habitat range is correlated with horizontal transfer of ATPase operons. [PDF]
Thaumarchaeota are responsible for a significant fraction of ammonia oxidation in the oceans and in soils that range from alkaline to acidic. However, the adaptive mechanisms underpinning their habitat expansion remain poorly understood.
Bartlett, Douglas H +24 more
core +2 more sources
Trace methane oxidation studied in several Euryarchaeota under diverse conditions [PDF]
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 +3 more
openaire +2 more sources
Ecological and Genomic Attributes of Novel Bacterial Taxa That Thrive in Subsurface Soil Horizons. [PDF]
While most bacterial and archaeal taxa living in surface soils remain undescribed, this problem is exacerbated in deeper soils, owing to the unique oligotrophic conditions found in the subsurface.
Arogyaswamy, Keshav +24 more
core +2 more sources
Phylogenetic ecology of widespread uncultured clades of the Kingdom Euryarchaeota
AbstractDespite its widespread distribution and high levels of phylogenetic diversity, microbes are poorly understood creatures. We applied a phylogenetic ecology approach in the Kingdom Euryarchaeota (Archaea) to gain insight into the environmental distribution and evolutionary history of one of the most ubiquitous and largely unknown microbial groups.
Barberán, Albert +4 more
openaire +3 more sources
To determine microbial community composition and possible key microbial processes in the shallow-sea hydrothermal vent system off Panarea Island (Italy), we examined bacterial and archaeal communities of sediment and fluid samples from a hot vent by 16S ...
Teresa L. Maugeri +2 more
doaj +1 more source
Bacterial and archaeal spatial distribution and its environmental drivers in an extremely haloalkaline soil at the landscape scale [PDF]
Background A great number of studies have shown that the distribution of microorganisms in the soil is not random, but that their abundance changes along environmental gradients (spatial patterns).
Martha Adriana Martínez-Olivas +6 more
doaj +2 more sources
Diffuse flow environments within basalt- and sediment-based hydrothermal vent ecosystems harbor specialized microbial communities [PDF]
Hydrothermal vents differ both in surface input and subsurface geochemistry. The effects of these differences on their microbial communities are not clear.
Campbell, Barbara J. +6 more
core +3 more sources

