Results 41 to 50 of about 106,556 (213)

Lipidomic chemotaxonomy aligned with phylogeny of Halobacteria

open access: yesFrontiers in Microbiology, 2023
Archaea play an important role in global biogeochemical cycles and are considered ancestral to eukaryotes. The unique lipid composition of archaea, characterized by isoprenoid alkyl chains and ether linkage to glycerol-1-phosphate, offers valuable ...
Wenyong Yao   +11 more
doaj   +1 more source

Wide diversity of methane and short-chain alkane metabolisms in uncultured archaea

open access: yesNature Microbiology, 2019
Methanogenesis is an ancient metabolism of key ecological relevance, with direct impact on the evolution of Earth’s climate. Recent results suggest that the diversity of methane metabolisms and their derivations have probably been vastly underestimated ...
Guillaume Borrel   +15 more
semanticscholar   +1 more source

Asgard archaea capable of anaerobic hydrocarbon cycling

open access: yesNature Communications, 2019
Large reservoirs of natural gas in the oceanic subsurface sustain complex communities of anaerobic microbes, including archaeal lineages with potential to mediate oxidation of hydrocarbons such as methane and butane. Here we describe a previously unknown
K. Seitz   +8 more
semanticscholar   +1 more source

Complex archaea that bridge the gap between prokaryotes and eukaryotes

open access: yesNature, 2015
The origin of the eukaryotic cell remains one of the most contentious puzzles in modern biology. Recent studies have provided support for the emergence of the eukaryotic host cell from within the archaeal domain of life, but the identity and nature of ...
A. Spang   +9 more
semanticscholar   +1 more source

Identification of XylR, the Activator of Arabinose/Xylose Inducible Regulon in Sulfolobus acidocaldarius and Its Application for Homologous Protein Expression

open access: yesFrontiers in Microbiology, 2020
The thermophilic archaeon Sulfolobus acidocaldarius can use different carbon sources for growth, including the pentoses D-xylose and L-arabinose. In this study, we identified the activator XylR (saci_2116) responsible for the transcriptional regulation ...
Nienke van der Kolk   +7 more
doaj   +1 more source

“Influence of plasmids, selection markers and auxotrophic mutations on Haloferax volcanii cell shape plasticity”

open access: yesFrontiers in Microbiology, 2023
Haloferax volcanii and other Haloarchaea can be pleomorphic, adopting different shapes, which vary with growth stages. Several studies have shown that H.
Megha Patro   +4 more
doaj   +1 more source

Unifying the global phylogeny and environmental distribution of ammonia-oxidising archaea based on amoA genes

open access: yesNature Communications, 2018
Ammonia-oxidising archaea (AOA) are ubiquitous and abundant in nature and play a major role in nitrogen cycling. AOA have been studied intensively based on the amoA gene (encoding ammonia monooxygenase subunit A), making it the most sequenced functional ...
R. Alves   +4 more
semanticscholar   +1 more source

Electron cryo-microscopy reveals the structure of the archaeal thread filament

open access: yesNature Communications, 2022
Pili are filamentous appendages on the surface of bacteria and archaea, and play roles in multiple processes such as adhesion, motility and horizontal gene transfer. Here, Gaines et al. describe the structure of a new type of pilus, termed ‘thread’, from
Matthew C. Gaines   +10 more
doaj   +1 more source

Ammonia Oxidation by the Arctic Terrestrial Thaumarchaeote Candidatus Nitrosocosmicus arcticus Is Stimulated by Increasing Temperatures

open access: yesFrontiers in Microbiology, 2019
Climate change is causing arctic regions to warm disproportionally faster than those at lower latitudes, leading to alterations in carbon and nitrogen cycling, and potentially higher greenhouse gas emissions.
Ricardo J. Eloy Alves   +9 more
doaj   +1 more source

Uncovering the temporal dynamics and regulatory networks of thermal stress response in a hyperthermophile using transcriptomics and proteomics

open access: yesmBio, 2023
Facing rapid fluctuations in their natural environment, extremophiles, like the hyperthermophilic archaeon Pyrococcus furiosus, exhibit remarkable adaptability to extreme conditions.
Felix Grünberger   +9 more
doaj   +1 more source

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