Pré-Publication, Document De Travail (Preprint/Prepublication) Année : 2025

Archaeal tetraether lipids as tracers for past marine environmental change

1 CAU - Christian-Albrechts-Universität zu Kiel = Christian-Albrechts University of Kiel = Université Christian-Albrechts de Kiel
2 University of Southampton
3 CEREGE - Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement
4 LDEO - Lamont-Doherty Earth Observatory
5 School of Chemistry [Bristol]
6 Department of Earth Sciences [Utrecht]
7 Organic Geochemistry Unit - OGU (Bristol, United Kingdom)
8 Department of Geosciences [University of Arizona]
9 UCAR - University Corporation for Atmospheric Research
10 Geological Institute [ETH Zürich]
11 MARUM - Center for Marine Environmental Sciences [Bremen]
12 NIOZ - Royal Netherlands Institute for Sea Research
13 Universität Bremen [Deutschland] = University of Bremen [Germany] = Université de Brême [Allemagne]
14 GEOMAR - Helmholtz Centre for Ocean Research [Kiel]
15 CEEES - Department of Civil and Environmental Engineering and Earth Science [Notre Dame]
16 Shanghai Jiao Tong University [Shanghai]
17 Victoria University of Wellington
18 GNS Science [Lower Hutt]
19 NIWA - National Institute of Water and Atmospheric Research [Auckland]
20 School of Geography, Earth and Environmental Sciences [Birmingham]
21 NTU - Institute of Oceanography [National Taiwan University]
22 SU - Department of Earth Sciences [Stellenbosch University]
23 METIS - Milieux Environnementaux, Transferts et Interactions dans les hydrosystèmes et les Sols
24 IE University [Campus Madrid]
25 IOW - Leibniz Institute for Baltic Sea Research Warnemünde
26 OU - University of Oklahoma
27 AWI - Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine
28 Lincoln University [Nouvelle-Zélande]
29 School of Geography, Environment and Earth Sciences [Wellington]
30 Harvard University
31 GEUS - Geological Survey of Denmark and Greenland
32 YAU - Yan'an University
33 SDU - University of Southern Denmark = Syddansk Universitet
34 NORDCEE - Nordic Centre of Earth Evolution
35 GIGCAS - Guangzhou Institute of Geochemistry [Chinese Academy of Sciences (CAS), Guangzhou, China]
Gordon Inglis
Sarah Hurley
Bernhard David Naafs
Alexandra Auderset
Cindy De Jonge
Liang Dong
Xiaolei Liu
Ann Pearson
Appy Sluijs
Qian Tian

Résumé

Archaea are single-celled microorganisms that are abundant in marine environments and play a key role in the carbon and nitrogen cycles. Archaea can biosynthesize a wide variety of isoprenoid membrane lipids, including isoprenoid glycerol dibiphytanyl glycerol tetraethers (isoGDGTs). Experimental and empirical evidence demonstrates that the number of cyclopentane moieties in isoGDGTs is related to growth temperature, leading to the formulation and development of the TEX86 ocean temperature proxy. The TEX86 proxy has been widely applied to marine sediments spanning the last 190 million years and has revealed unique insights into the evolution of ocean temperatures over diverse timescales. Other indices have been developed using archaeal lipids to reconstruct ecological and biogeochemical processes that operate within the marine realm. However, several knowledge gaps limit the application of archaeal lipid-based proxies in modern and ancient marine environments. In this review, we critically assess the utility of archaeal lipids as tracers for (paleo)environmental change, with an emphasis on the TEX86 temperature proxy.

Dates et versions

hal-05383835 , version 1 (26-11-2025)

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Citer

Felix Elling, Gordon Inglis, Nina Davtian, Sarah Hurley, Bernhard David Naafs, et al.. Archaeal tetraether lipids as tracers for past marine environmental change. 2025. ⟨hal-05383835⟩
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