Results 61 to 70 of about 15,799 (161)

Ocean currents shape the microbiome of Arctic marine sediments [PDF]

open access: yes, 2012
Prokaryote communities were investigated on the seasonally stratified Alaska Beaufort Shelf (ABS). Water and sediment directly underlying water with origin in the Arctic, Pacific or Atlantic oceans were analyzed by pyrosequencing and length heterogeneity-
A Pernthaler   +51 more
core   +2 more sources

Evolutionary divergence and functional insights into the heteromeric cis‐prenyltransferase of Paramecium tetraurelia

open access: yesThe FEBS Journal, Volume 293, Issue 6, Page 1681-1707, March 2026.
Heteromeric cis‐prenyltransferases (CPT) are indispensable for dolichol synthesis and protein N‐glycosylation in most eukaryotes. The catalytic subunits are strongly conserved throughout evolution, in contrast to the evolutionarily variable accessory subunits. The POC1 protein from Paramecium tetraurelia is the smallest identified CPT‐accessory subunit
Agnieszka Onysk   +8 more
wiley   +1 more source

Culture-dependent and -independent methods reveal dominance of halophilic Euryarchaeota in high-altitude Andean lakes [PDF]

open access: yesAquatic Microbial Ecology, 2018
Fil: Maldonado, Marcos Javier. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Tucuman.
MJ Maldonado   +4 more
openaire   +1 more source

Evaluation and optimization of PCR primers for selective and quantitative detection of marine ANME subclusters involved in sulfate-dependent anaerobic methane oxidation [PDF]

open access: yes, 2017
Since the discovery that anaerobic methanotrophic archaea (ANME) are involved in the anaerobic oxidation of methane coupled to sulfate reduction in marine sediments, different primers and probes specifically targeting the 16S rRNA gene of these archaea ...
A Boetius   +38 more
core   +1 more source

An identity card for sabkha dolomite

open access: yesThe Depositional Record, Volume 12, Issue 1, February 2026.
An ‘identity card’ for modern sabkha dolomite from Qatar reveals its mineralogical, geochemical and microbial characteristics. This integrated dataset provides a benchmark for recognising similar dolomites in the rock record and for calibrating paleoenvironmental proxies used in climate and biosignature studies.
Tomaso R. R. Bontognali   +6 more
wiley   +1 more source

Lokiarchaea are close relatives of Euryarchaeota, not bridging the gap between prokaryotes and eukaryotes

open access: yesPLOS Genetics, 2017
The eocyte hypothesis, in which Eukarya emerged from within Archaea, has been boosted by the description of a new candidate archaeal phylum, "Lokiarchaeota", from metagenomic data. Eukarya branch within Lokiarchaeota in a tree reconstructed from the concatenation of 36 universal proteins.
Violette Da Cunha   +4 more
openaire   +4 more sources

The archaea - origin, evolution and ecology [PDF]

open access: yes, 2012
Kada su prvi puta pronađeni 1977.godine, arheje, ovi mikroskopski jednostanični organizmi su klasificirani kao bakterije. Kasnije genetičke i biokemijske analize pokazale su da su arheje srodnije eukariotima.
Vetma, Vesna
core   +2 more sources

Nexus of Whey Proteins, Gut Dysbiosis, and Colonic Health

open access: yesFood Science &Nutrition, Volume 14, Issue 2, February 2026.
Whey proteins possess antimicrobial and prebiotic properties that modulate gut microbiota by promoting beneficial bacteria like Bifidobacterium while suppressing pathogens. This modulation enhances short‐chain fatty acid production and strengthens intestinal barrier integrity, potentially alleviating dysbiosis‐related conditions such as colitis and ...
Tolulope Joshua Ashaolu   +4 more
wiley   +1 more source

The role of the gut microbiome in the regulation of high‐altitude adaptation

open access: yesiMeta, Volume 5, Issue 1, February 2026.
This study is the first to elucidate mechanisms of high‐altitude adaptation from the perspective of the rumen ecosystem by using indigenous yaks and Holstein cows that have lived at high altitude since birth as comparative models. Through a systematic comparison of their rumen ecology using multi‐omics approaches—including rumen metagenomics ...
Xinyu Zhang   +6 more
wiley   +1 more source

First Archaeal rDNA sequences from coastal waters of Argentina: unexpected PCR characterization by using eukaryotic primers [PDF]

open access: yes, 2012
Muchos miembros de Archaea, un grupo de microroganismos descritos hace aproximadamente 30 años, colonizan ambientes extremos. Sin embargo, las investigaciones más recientes han demostrado que las arqueas también son abundantes componentes del plankton ...
Caló, Gonzalo Federico   +5 more
core  

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