Results 31 to 40 of about 2,346 (185)

Archaeal intact polar lipids in polar waters: a comparison between the Amundsen and Scotia seas [PDF]

Biogeosciences, 2021
The West Antarctic Ice Sheet (WAIS) is one of the largest potential sources of future sea-level rise, with glaciers draining the WAIS thinning at an accelerating rate over the past 40 years.
C. L. Spencer-Jones, E. L. McClymont, N. J. Bale, E. C. Hopmans, S. Schouten, S. Schouten, J. Müller, E. P. Abrahamsen, C. Allen, T. Bickert, C.-D. Hillenbrand, E. Mawbey, V. Peck, A. Svalova, J. A. Smith   +14 more
doaj   +1 more source

Influence of Growth Phase, pH, and Temperature on the Abundance and Composition of Tetraether Lipids in the Thermoacidophile Picrophilus torridus

Frontiers in Microbiology, 2016
The abundance and composition of glycerol dibiphytanyl glycerol tetraether (GDGT) and glycerol tribiphytanyl glycerol tetraether (GTGT) lipids were determined as a function of growth phase as a proxy for nutrient availability, the pH of growth medium ...
Jayme Feyhl-Buska, Yufei Chen, Chengling Jia, Jinxiang Wang, Chuanlun Zhang, Eric Boyd   +5 more
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Marine Group II Euryarchaeota Contribute to the Archaeal Lipid Pool in Northwestern Pacific Ocean Surface Waters

Frontiers in Microbiology, 2020
Planktonic archaea include predominantly Marine Group I Thaumarchaeota (MG I) and Marine Group II Euryarchaeota (MG II), which play important roles in the oceanic carbon cycle. MG I produce specific lipids called isoprenoid glycerol dibiphytanyl glycerol
Cenling Ma, Sarah Coffinet, Julius S. Lipp, Kai-Uwe Hinrichs, Chuanlun Zhang, Chuanlun Zhang   +5 more
doaj   +1 more source

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

Biophysica, 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, Umme Ayesa, Parkson Lee-Gau Chong   +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]

Biogeosciences, 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, F. Sangiorgi, A. Sluijs, J. S. Sinninghe Damsté, J. S. Sinninghe Damsté, F. Peterse   +5 more
doaj   +1 more source

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

Microbiology 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, IMAN SANTOSO, ANDI YEHUDA, SERUNI K.U. FREISLEBEN, SEPTELIA INAWATI WANANDI, HARALD HUBER, ZESSINDA LUTHFA, ROSARI SALEH, HANS-JOACHIM FREISLEBEN   +8 more
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Membrane lipid and expression responses of Saccharolobus islandicus REY15A to acid and cold stress

Frontiers 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, Jacob Waldbauer, Felix J. Elling, Felix J. Elling, Öykü Z. Mete, Öykü Z. Mete, Lichun Zhang, Ann Pearson, Erin M. Eggleston, William D. Leavitt, William D. Leavitt   +10 more
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Purification of glycerol dialkyl nonitol tetraether from Sulfolobus acidocaldarius.

Journal 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

Frontiers 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, Thorsten Bauersachs, Christiane Hassenrück, Katja Käding, Janine Wäge-Recchioni, Klaus Jürgens, Helge Wolfgang Arz, Jérôme Kaiser   +7 more
doaj   +1 more source

OPTiMAL: a new machine learning approach for GDGT-based palaeothermometry [PDF]

Climate of the Past, 2020
In the modern oceans, the relative abundances of glycerol dialkyl glycerol tetraether (GDGT) compounds produced by marine archaeal communities show a significant dependence on the local sea surface temperature at the site of deposition. When preserved in
T. Dunkley Jones, Y. L. Eley, W. Thomson, S. E. Greene, I. Mandel, I. Mandel, I. Mandel, K. Edgar, J. A. Bendle   +8 more
doaj   +1 more source