Results 11 to 20 of about 337 (117)

Genomic variation and biogeography of Antarctic haloarchaea [PDF]

open access: yesMicrobiome, 2018
Background The genomes of halophilic archaea (haloarchaea) often comprise multiple replicons. Genomic variation in haloarchaea has been linked to viral infection pressure and, in the case of Antarctic communities, can be caused by intergenera gene ...
Bernhard Tschitschko   +10 more
doaj   +5 more sources

Viruses of Haloarchaea [PDF]

open access: yesLife, 2014
In hypersaline environments, haloarchaea (halophilic members of the Archaea) are the dominant organisms, and the viruses that infect them, haloarchaeoviruses are at least ten times more abundant.
Alison W. S. Luk   +4 more
doaj   +4 more sources

Haloarchaea and the Formation of Gas Vesicles [PDF]

open access: yesLife, 2015
Halophilic Archaea (Haloarchaea) thrive in salterns containing sodium chloride concentrations up to saturation. Many Haloarchaea possess genes encoding gas vesicles, but only a few species, such as Halobacterium salinarum and Haloferax mediterranei ...
Felicitas Pfeifer
doaj   +3 more sources

Starvation-Survival in Haloarchaea [PDF]

open access: yesLife, 2015
Recent studies claiming to revive ancient microorganisms trapped in fluid inclusions in halite have warranted an investigation of long-term microbial persistence.
Yaicha D. Winters   +2 more
doaj   +3 more sources

The core and unique proteins of haloarchaea [PDF]

open access: yesBMC Genomics, 2012
Background Since the first genome of a halophilic archaeon was sequenced in 2000, biologists have been advancing the understanding of genomic characteristics that allow for survival in the harsh natural environments of these organisms.
Capes Melinda D   +2 more
doaj   +3 more sources

Evolution of rhodopsin ion pumps in haloarchaea [PDF]

open access: yesBMC Evolutionary Biology, 2007
Background The type 1 (microbial) rhodopsins are a diverse group of photochemically reactive proteins that display a broad yet patchy distribution among the three domains of life.
Ford Doolittle W   +5 more
doaj   +4 more sources

Polyploidy in haloarchaea: advantages for growth and survival [PDF]

open access: yesFrontiers in Microbiology, 2014
The investigated haloarchaeal species, Halobacterium salinarum, Haloferax mediterranii, and H. volcanii, have all been shown to be polyploid. They contain several replicons that have independent copy number regulation, and most have a higher copy number ...
Karolin eZerulla, Jörg eSoppa
doaj   +4 more sources

Nitrogen metabolism in haloarchaea [PDF]

open access: yesSaline Systems, 2008
The nitrogen cycle (N-cycle), principally supported by prokaryotes, involves different redox reactions mainly focused on assimilatory purposes or respiratory processes for energy conservation. As the N-cycle has important environmental implications, this biogeochemical cycle has become a major research topic during the last few years. However, although
Bonete, Mari­a José   +4 more
openaire   +3 more sources

Searching for species in haloarchaea [PDF]

open access: yesProceedings of the National Academy of Sciences, 2007
Prokaryotic (bacterial and archaeal) species definitions and the biological concepts that underpin them entail clustering (cohesion) among individuals, in terms of genome content and gene sequence similarity. Homologous recombination can maintain gene sequence similarity within, while permitting divergence between, clusters and is ...
R Thane, Papke   +5 more
openaire   +2 more sources

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