Results 41 to 50 of about 3,987 (248)

Application of microbial membrane tetraether lipids in speleothems

open access: yesFrontiers in Ecology and Evolution, 2023
Glycerol dialkyl glycerol tetraethers (GDGTs), which are derived from microbial membranes, occur widely in soils, peats, lake sediments, marine sediments, hot springs, and other environments. GDGTs respond sensitively to environmental changes and have become an important tool in paleoenvironmental reconstruction.
Jingjie Zang   +7 more
openaire   +2 more sources

Chemical markers for rumen methanogens and methanogenesis [PDF]

open access: yes, 2013
Peer reviewedPublisher ...
Bessa   +63 more
core   +1 more source

Identification of unusual butanetriol dialkyl glycerol tetraether and pentanetriol dialkyl glycerol tetraether lipids in marine sediments [PDF]

open access: yesRapid Communications in Mass Spectrometry, 2013
RATIONALE Glycerol serves as the principal backbone moiety bound to various acyl/alkyl chains for membrane lipids of Eukarya , Bacteria , and Archaea .
Chun Zhu   +3 more
openaire   +2 more sources

The Polar Lipid Fraction E from Sulfolobus acidocaldarius Can Be Used as Liposomal Drug Stabilizing Agents to Reduce the Leakage of the Antivascular Drug Combretastatin A4 Disodium Phosphate from Tetraether/Diester Hybrid Archaeosomes

open access: yesBiophysica, 2021
Liposomes have many advantages as therapeutic capsules over free drugs such as small molecule drugs and nucleic acids. Cholesterol is commonly used as a membrane stabilizing agent in liposomal drugs (e.g., mRNA-lipid nanoparticle COVID-19 vaccines ...
Varsha P. Daswani   +2 more
doaj   +1 more source

The dispersal of fluvially discharged and marine, shelf-produced particulate organic matter in the northern Gulf of Mexico [PDF]

open access: yesBiogeosciences, 2023
Rivers play a key role in the global carbon cycle by transporting terrestrial organic matter (TerrOM) from land to the ocean. Upon burial in marine sediments, this TerrOM may be a significant long-term carbon sink, depending on its composition and ...
Y. W. Yedema   +5 more
doaj   +1 more source

Characterization of Thermoplasma Species Cultured from Sampling on Tangkuban Perahu, Indonesia

open access: yesMicrobiology Indonesia, 2014
Archaea is an organisme with unique feature because of its ability to inhabit an extremophyle conditions. Our expeditions to Tangkuban Perahu, West Java aimed to obtain archaealstrains from the solfatara fields located in Domas crater.
AMARILA MALIK   +8 more
doaj   +1 more source

Membrane lipid and expression responses of Saccharolobus islandicus REY15A to acid and cold stress

open access: yesFrontiers in Microbiology, 2023
Archaea adjust the number of cyclopentane rings in their glycerol dibiphytanyl glycerol tetraether (GDGT) membrane lipids as a homeostatic response to environmental stressors such as temperature, pH, and energy availability shifts.
Beverly K. Chiu   +10 more
doaj   +1 more source

Oral delivery of vancomycin by tetraether lipid liposomes

open access: yesEuropean Journal of Pharmaceutical Sciences, 2017
Despite the outstanding progress in modern medicine, the oral delivery of peptide drugs is limited until today due to their instability in the gastrointestinal tract and low mucosa penetration. To overcome these hurdles, liposomes containing the specific tetraether lipid GCTE (glycerylcaldityltetraether lipid) were examined.
Uhl, Philipp   +8 more
openaire   +3 more sources

Purification of glycerol dialkyl nonitol tetraether from Sulfolobus acidocaldarius.

open access: yesJournal of Lipid Research, 1989
A modified procedure for extraction and purification of hydrolyzed archaebacterial lipids is described. Lipids were extracted from Sulfolobus acidocaldarius using a Soxhlet extraction procedure followed by trichloroacetic acid solvent-extraction of the ...
S L Lo, C E Montague, E L Chang
doaj   +1 more source

Nitrosopumilus as main source of isoprenoid glycerol dialkyl glycerol tetraether lipids in the central Baltic Sea

open access: yesFrontiers in Microbiology, 2023
Nitrososphaeria in the phylum Crenarchaeota, is a widespread archaeal class in the oceanic realm, playing an important role in the marine carbon and nitrogen cycle.
Anna Katharina Wittenborn   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy