Results 31 to 40 of about 1,711 (160)

Co-variation of crenarchaeol and branched GDGTs in globally-distributed marine and freshwater sedimentary archives [PDF]

Two major types of glycerol dialkyl glycerol tetraethers (GDGTs) are commonly used in paleoecological and paleoclimatological reconstructions: isoprenoidal and branched GDGTs.
Rossi, Sergio, McClymont, Erin L., Peck, Vicky L., Herfort, Lydie, Escala, Marina, Fietz, Susanne, Bendle, James, Jamieson, Robert, Rueda, Gemma, Sanson-Barrera, Anna, Martinez-Garcia, Alfredo, Rosell-Mele, Antoni, Gallacher, Christopher, Huguet, Carme, Prahl, Fredrick G.   +14 more
core   +5 more sources

Evaluating Production of Cyclopentyl Tetraethers by Marine Group II Euryarchaeota in the Pearl River Estuary and Coastal South China Sea: Potential Impact on the TEX86 Paleothermometer

Frontiers in Microbiology, 2017
TEX86 [TetraEther indeX of glycerol dialkyl glycerol tetraethers (GDGTs) with 86 carbon atoms] has been widely applied to reconstruct (paleo-) sea surface temperature.
Jin-Xiang Wang, Jin-Xiang Wang, Wei Xie, Yi Ge Zhang, Travis B. Meador, Chuanlun L. Zhang, Chuanlun L. Zhang   +6 more
doaj   +1 more source

Climate reconstructions based on GDGT and pollen surface datasets from Mongolia and Baikal area: calibrations and applicability to extremely cold–dry environments over the Late Holocene [PDF]

Climate of the Past, 2021
Our understanding of climate and vegetation changes throughout the Holocene is hampered by representativeness in sedimentary archives. Potential biases such as production and preservation of the markers are identified by comparing these proxies with ...
L. Dugerdil, L. Dugerdil, S. Joannin, O. Peyron, I. Jouffroy-Bapicot, B. Vannière, B. Boldgiv, J. Unkelbach, H. Behling, G. Ménot   +9 more
doaj   +1 more source

Carbon isotopic composition of branched tetraether membrane lipids in soils suggest a rapid turnover and a heterotrophic life style of their source organism(s) [PDF]

Biogeosciences, 2010
Branched Glycerol Dialkyl Glycerol Tetraethers (GDGTs) are membrane spanning lipids synthesised by as yet unknown bacteria that thrive in soils and peat.
J. W. H. Weijers, G. L. B. Wiesenberg, R. Bol, E. C. Hopmans, R. D. Pancost   +4 more
doaj   +1 more source

Enhanced production of highly methylated brGDGTs linked to anaerobic bacteria from sediments of the Mariana Trench

Frontiers in Marine Science, 2023
Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are bacterial membrane lipids that are widely used in terrestrial paleoclimatic reconstructions. Recent studies have reported that brGDGTs can also be produced by marine bacteria.
Zhiyu Zeng, Zhiyu Zeng, Wenjie Xiao, Wenjie Xiao, Fengfeng Zheng, Fengfeng Zheng, Yufei Chen, Yufei Chen, Yuanqing Zhu, Yuanqing Zhu, Jiwei Tian, Chuanlun Zhang, Chuanlun Zhang, Chuanlun Zhang   +13 more
doaj   +1 more source

Crenarchaeol

Journal of Lipid Research, 2002
The basic structure and stereochemistry of the characteristic glycerol dibiphytanyl glycerol tetraether (GDGT) membrane lipid of cosmopolitan pelagic crenarchaeota has been identified by high field two-dimensional (2D)-NMR techniques.
Jaap S.Sinninghe Damsté, Stefan Schouten, Ellen C. Hopmans, Adri C.T. van Duin, Jan A.J. Geenevasen   +4 more
doaj   +1 more source

Isoprenoid GDGTs in Lake Challa sediments

, 2012
Isoprenoid GDGTs in Lake Challa ...
Schouten, Stefan, Ossebaar, Jort, Jaap S Sinninghe Damsté (6885257), Dirk Verschuren (8020796), Jort Ossebaar (8007473), Verschuren, Dirk, Stefan Schouten (6885260), Sinninghe Damsté, Jaap S   +7 more
core   +1 more source

Branched GDGTs in Lake Challa sediments

, 2012
Branched GDGTs in Lake Challa ...
Schouten, Stefan, Ossebaar, Jort, Jaap S Sinninghe Damsté (6885257), Dirk Verschuren (8020796), Jort Ossebaar (8007473), Verschuren, Dirk, Stefan Schouten (6885260), Sinninghe Damsté, Jaap S   +7 more
core   +1 more source

Reviews and syntheses: Best practices for the application of marine GDGTs as proxy for paleotemperatures: sampling, processing, analyses, interpretation, and archiving protocols [PDF]

Biogeosciences
Marine glycerol dialkyl glycerol tetraethers (GDGTs) are used in various proxies (such as TEX86) to reconstruct past ocean temperatures. Over 20 years of improvements in GDGT sample processing, analytical techniques, data interpretation and our ...
P. K. Bijl, K. K. Śliwińska, B. Duncan, A. Huguet, S. Naeher, S. Naeher, R. Rattanasriampaipong, R. Rattanasriampaipong, C. Sosa-Montes de Oca, A. Auderset, M. A. Berke, B. S. Kim, N. Davtian, T. Dunkley Jones, D. D. Eefting, F. J. Elling, P. Fenies, G. N. Inglis, L. O'Connor, R. D. Pancost, F. Peterse, A. Rice, A. Sluijs, D. Varma, W. Xiao, Y. G. Zhang   +25 more
doaj   +1 more source

Hydroxylated isoprenoidal GDGTs in the Nordic Seas

, 2013
Archaea modify their membrane lipid composition to maintain integrity and exchange capabilities across a wide temperature range. The number of rings in the tetraether structure increases with higher ambient temperatures.
Hambach, Bastian, Fietz, Susanne, Rosell-Melé, Antoni, Rueda, Gemma, Huguet, Carme, Rueda G, Hambach B, Rosell-Mel� A, Huguet C, Fietz S   +9 more
core   +1 more source