Energy flux controls tetraether lipid cyclization in Sulfolobus acidocaldarius [PDF]
Environmental Microbiology, 2019 Microorganisms regulate the composition of their membranes in response to environmental cues. Many archaea maintain the fluidity and permeability of their membranes by adjusting the number of cyclic moieties within the cores of their glycerol ...
Alice Zhou +6 more
semanticscholar +6 more sources
Molecular dynamics study of bipolar tetraether lipid membranes. [PDF]
Biophys J, 2005 Membranes composed of bipolar tetraether lipids have been studied by a series of 25-ns molecular dynamics simulations to understand the microscopic structure and dynamics as well as membrane area elasticity. By comparing macrocyclic and acyclic tetraether and diether archaeal lipids, the effect of tail linkage of the two phytanyl-chained lipids on the ...
Shinoda W, Shinoda K, Baba T, Mikami M.
europepmc +6 more sources
Constraints on the sources of branched tetraether membrane lipids in distal marine sediments [PDF]
Organic Geochemistry, 2014 Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are membrane lipids produced by soil bacteria and occur in near coastal marine sediments as a result of soil organic matter input.
Johan W.H. Weijers +4 more
core +7 more sources
Chemistry – A European Journal, Volume 31, Issue 25, May 5, 2025.Glycerol dialkyl glycerol tetraethers (GDGTs) are a group of membrane spanning lipids produced by both Archaea and Bacteria. Branched GDGTs (brGDGTs) are a class of these tetraether lipids known to be produced by certain bacteria and are commonly found ...
Samarpita Mahapatra +5 more
semanticscholar +2 more sources
Thermoplasmatales and Methanogens: Potential Association with the Crenarchaeol Production in Chinese Soils [PDF]
Frontiers in Microbiology, 2017 Crenarchaeol is a unique isoprenoid glycerol dibiphytanyl glycerol tetraether (iGDGT) lipid, which is only identified in cultures of ammonia-oxidizing Thaumarchaeota. However, the taxonomic origins of crenarchaeol have been debated recently. The archaeal
Fuyan Li +8 more
doaj +3 more sources
Are Marine Group II Euryarchaeota significant contributors to tetraether lipids in the ocean? [PDF]
Proceedings of the National Academy of Sciences, 2014 The first line of evidence is the presence of GDGTs, including crenarchaeol, in suspended particulate matter (SPM) at 83 m, the archaeal community of which is nearly exclusively composed of MG-II (>94% of archaeal reads) (table 1 in ref. 1) as determined
Hopmans, E.C. +4 more
core +5 more sources
Discovering Hidden Archaeal and Bacterial Lipid Producers in a Euxinic Marine System. [PDF]
Environ MicrobiolWe investigated the bacterial and archaeal membrane lipids in the Black Sea, focusing on isoprenoidal and branched GDGTs, combining high‐resolution accurate mass/mass spectrometry with metagenomics. Our objective was to identify the potential biological producers of these lipids and to begin understanding their role in microbial adaptation.
Boukhchtaber DC +6 more
europepmc +2 more sources
Preparation and Characterization of Stealth Archaeosomes Based on a Synthetic PEGylated Archaeal Tetraether Lipid. [PDF]
J Drug Deliv, 2011 The present studies were focused on the formation and characterization of sterically stabilized archaeosomes made from a synthetic PEGylated archaeal lipid.
Barbeau J +3 more
europepmc +2 more sources
Membrane lipid and expression responses of Saccharolobus islandicus REY15A to acid and cold stress [PDF]
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 +10 more
doaj +2 more sources
Isotopologue Ratios Identify <sup>13</sup>C-Depleted Biomarkers in Environmental Samples Impacted by Methane Turnover. [PDF]
Rapid Commun Mass SpectromABSTRACT Rationale The stable carbon isotopic composition (δ13C) of individual lipids is of great value in studying carbon cycling. Among those, microbial lipids in sediments impacted by high methane turnover stand out due to their uniquely depleted isotopic fingerprint.
Groninga J, Lipp J, Song M, Hinrichs KU.
europepmc +2 more sources