Results 61 to 70 of about 1,034,422 (264)

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
RATIONALEGlycerol serves as the principal backbone moiety bound to various acyl/alkyl chains for membrane lipids of Eukarya, Bacteria, and Archaea. In this study, we report a suite of unusual tetraether lipids in which one of the two conventional glycerol backbones is substituted by butanetriol or pentanetriol.METHODSIdentification of these lipids was ...
Chun Zhu   +3 more
openaire   +3 more sources

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

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

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

open access: yesClimate 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   +8 more
doaj   +1 more source

The effect of meter-scale lateral oxygen gradients at the sediment-water interface on selected organic matter based alteration, productivity and temperature proxies [PDF]

open access: yesBiogeosciences, 2012
A valid assessment of selective aerobic degradation on organic matter (OM) and its impact on OM-based proxies is vital to produce accurate environmental reconstructions. However, most studies investigating these effects suffer from inherent environmental
K. A. Bogus   +5 more
doaj   +1 more source

Variation of Isoprenoid GDGTs in the Stratified Marine Water Column: Implications for GDGT-Based TEX86 Paleothermometry

open access: yesFrontiers in Marine Science, 2021
Isoprenoid glycerol dialkyl glycerol tetraethers (isoGDGTs) derived from archaea are lipid biomarkers that exhibit high sensitivity to changes in water temperature, leading to the widespread application of the isoGDGT-based tetraether index of 86 carbon ...
Jinqiang Guo   +38 more
doaj   +1 more source

The distribution and abundance of archaeal tetraether lipids in U.S. Great Basin hot springs [PDF]

open access: yes, 2013
Isoprenoidal glycerol dialkyl glycerol tetraethers (iGDGTs) are core membrane lipids of many archaea that enhance the integrity of cytoplasmic membranes in extreme environments.
Amanda J. eWilliams   +10 more
core   +2 more sources

Membrane-spanning lipids for an uncompromised monitoring of membrane fusion and intermembrane lipid transfer

open access: yesJournal of Lipid Research, 2015
A Förster resonance energy transfer-based fusion and transfer assay was developed to study, in model membranes, protein-mediated membrane fusion and intermembrane lipid transfer of fluorescent sphingolipid analogs.
Günter Schwarzmann   +2 more
doaj   +1 more source

Carbon Oxidation State in Microbial Polar Lipids Suggests Adaptation to Hot Spring Temperature and Redox Gradients

open access: yesFrontiers in Microbiology, 2020
The influence of oxidation-reduction (redox) potential on the expression of biomolecules is a topic of ongoing exploration in geobiology. In this study, we investigate the novel possibility that structures and compositions of lipids produced by microbial
Grayson M. Boyer   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy