Results 41 to 50 of about 1,695 (156)

On Physical Properties of Tetraether Lipid Membranes: Effects of Cyclopentane Rings [PDF]

Archaea, 2012
This paper reviews the recent findings related to the physical properties of tetraether lipid membranes, with special attention to the effects of the number, position, and configuration of cyclopentane rings on membrane properties. We discuss the findings obtained from liposomes and monolayers, composed of naturally occurring archaeal tetraether lipids
Parkson Lee-Gau Chong, Umme Ayesa, Varsha Prakash Daswani, Ellah Chay Hur   +3 more
openaire   +2 more sources

Distribution of tetraether lipids in agricultural soils – differentiation between paddy and upland management [PDF]

Biogeosciences, 2016
Rice paddies constitute almost a fifth of global cropland and provide more than half of the world's population with staple food. At the same time, they are a major source of methane and therewith significantly contribute to the current warming of Earth's
C. Mueller-Niggemann, S. R. Utami, A. Marxen, K. Mangelsdorf, T. Bauersachs, L. Schwark   +5 more
doaj   +1 more source

Identification and significance of unsaturated archaeal tetraether lipids in marine sediments [PDF]

Rapid Communications in Mass Spectrometry, 2014
RATIONALE Studies of archaeal glycerol dibiphytanyl glycerol tetraethers (GDGTs) in the environment and cultures have exclusively focused on compounds with fully saturated alkyl moieties. Here we report a number of novel unsaturated GDGTs (uns‐GDGTs) whose alkyl chains contain up to six double bonds and zero to ...
Chun Zhu, Marcos Y. Yoshinaga, Carl A. Peters, Xiao-Lei Liu, Marcus Elvert, Kai-Uwe Hinrichs   +5 more
openaire   +2 more sources

Biosynthesis of archaeal membrane ether lipids

Frontiers in Microbiology, 2014
A vital function of the cell membrane in all living organism is to maintain the membrane permeability barrier and fluidity. The composition of the phospholipid bilayer is distinct in archaea when compared to bacteria and eukarya.
Samta eJain, Samta eJain, Antonella eCaforio, Arnold J. M. Driessen   +3 more
doaj   +1 more source

Assessing branched tetraether lipids as tracers of soil organic carbon transport through the Carminowe Creek catchment (southwest England) [PDF]

Biogeosciences, 2020
Soils represent the largest reservoir of organic carbon (OC) on land. Upon mobilization, this OC is either returned to the atmosphere as carbon dioxide (CO2) or transported and ultimately locked into (marine) sediments, where it will act as a long-term ...
J. Guo, M. Glendell, J. Meersmans, F. Kirkels, J. J. Middelburg, F. Peterse   +5 more
doaj   +1 more source

Archaeosomes and Tetraether Lipid Liposome

Pharmaceutical Sciences and Research, 2012
Archaea have phytanyl ether lipids which is one of the characteristics that separates them from bacteria and eukaryotes. Some archaea have also unique membrane spanning tetrae- ther lipids (T EL); in Sulfolobus and Ihermoplasma species these TELmake up the majority of total membrane lipids.
openaire   +1 more source

Energy flux controls tetraether lipid cyclization in Sulfolobus acidocaldarius [PDF]

Environmental Microbiology, 2019
Summary 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 dibiphytanyl glycerol tetraether (GDGT) lipids.
Alice Zhou, Yuki Weber, Beverly K. Chiu, Felix J. Elling, Alec B. Cobban, Ann Pearson, William D. Leavitt   +6 more
openaire   +3 more sources

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

Benthic archaea as potential sources of tetraether membrane lipids in sediments across an oxygen minimum zone [PDF]

Biogeosciences, 2018
Benthic archaea comprise a significant part of the total prokaryotic biomass in marine sediments. Recent genomic surveys suggest they are largely involved in anaerobic processing of organic matter, but the distribution and abundance of these archaeal ...
M. A. Besseling, E. C. Hopmans, R. C. Boschman, J. S. Sinninghe Damsté, J. S. Sinninghe Damsté, L. Villanueva   +5 more
doaj   +1 more source

Late Holocene environmental history of Dojran, Macedonia: Investigating the interplay of imperial dynamics and climatic change

Journal of Quaternary Science, EarlyView.
ABSTRACT This study presents a high‐resolution, multi‐proxy reconstruction of environmental and land‐use change from Lake Dojran over historical times (last 2500 years), combining pollen, biomarkers, radiocarbon dating, Ottoman taxation records and other historical data.
Alessia Masi, Lucrezia Masci, Georgios C. Liakopoulos, Monica Bini, Alexander Francke, Ilaria Isola, Carlo Ricotta, Laura Sadori, Alexander Sarantis, Sławomir Sprawski, Jakub Sypiański, Irene Tunno, Cristiano Vignola, Bernd Wagner, Giovanni Zanchetta, Adam Izdebski   +15 more
wiley   +1 more source