Results 21 to 30 of about 1,876 (158)

Application of microbial membrane tetraether lipids in speleothems

Frontiers 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, Huan Yang, Huan Yang, Jiahao Zhang, Huiru Tang, Huiru Tang, Liangcheng Tan, Liangcheng Tan   +7 more
openaire   +2 more sources

The Effects of Temperature and Growth Phase on the Lipidomes of Sulfolobus islandicus and Sulfolobus tokodaii

Life, 2015
The functionality of the plasma membrane is essential for all organisms. Adaption to high growth temperatures imposes challenges and Bacteria, Eukarya, and Archaea have developed several mechanisms to cope with these.
Sara Munk Jensen, Vinnie Lund Neesgaard, Sandra Landbo Nedergaard Skjoldbjerg, Martin Brandl, Christer S. Ejsing, Alexander H. Treusch   +5 more
doaj   +1 more source

Membrane homeoviscous adaptation in the piezo-hyperthermophilic archaeon Thermococcus barophilus

Frontiers in Microbiology, 2015
The archaeon Thermococcus barophilus, one of the most extreme members of hyperthermophilic piezophiles known thus far, is able to grow at temperatures up to 103°C and pressures up to 80MPa. We analyzed the membrane lipids of T. barophilus by HPLC-MS as a
Anaïs eCario, Vincent eGrossi, Philippe eSchaeffer, Philippe M Oger   +3 more
doaj   +1 more source

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
doaj   +1 more source

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
doaj   +1 more source

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
doaj   +1 more source