Large enrichments in fatty acid 2H/1H ratios distinguish respiration from aerobic fermentation in yeast Saccharomyces cerevisiae

AE Maloney, SH Kopf, Z Zhang… - Proceedings of the …, 2024 - National Acad Sciences
Shifts in the hydrogen stable isotopic composition (2H/1H ratio) of lipids relative to water
(lipid/water 2H-fractionation) at natural abundances reflect different sources of the central …

The paleolimnologist's guide to compound-specific stable isotope analysis–An introduction to principles and applications of CSIA for Quaternary lake sediments

J Holtvoeth, JH Whiteside, S Engels, FS Freitas… - Quaternary Science …, 2019 - Elsevier
The stable isotope composition of key chemical elements for life on Earth (eg, carbon,
hydrogen, nitrogen, oxygen, sulfur) tracks changes in fluxes and turnover of these elements …

Limits of our knowledge, part 2: selected frontiers in marine organic biogeochemistry

SG Wakeham, C Lee - Marine Chemistry, 2019 - Elsevier
The advent of new sampling tools, analytical methods, and data handling capabilities that
have been applied to marine chemistry since the 1970s along with coordinated …

[HTML][HTML] Controls on the hydrogen isotope composition of tetraether lipids in an autotrophic ammonia-oxidizing marine archaeon

WD Leavitt, SH Kopf, Y Weber, B Chiu… - … et Cosmochimica Acta, 2023 - Elsevier
The stable hydrogen isotope composition of persistent biomolecules is used as a
palaeohydrological proxy. While much previous work has focused on plant leaf wax-derived …

Palmitic Acid Is Not a Proper Salinity Proxy in Baffin Bay and the Labrador Sea but Reflects the Variability in Organic Matter Sources Modulated by Sea Ice Coverage

E Allan, PMJ Douglas, A de Vernal… - Geochemistry …, 2023 - Wiley Online Library
Palmitic acid (PA) is ubiquitous in the biosphere and its hydrogen isotopic composition
(δ2HPA) was proposed as a potential paleoenvironmental proxy for salinity, with δ2HPA …

Biosynthetic and catabolic pathways control amino acid δ2H values in aerobic heterotrophs

SN Silverman, RS Wijker, AL Sessions - Frontiers in Microbiology, 2024 - frontiersin.org
The hydrogen isotope ratios (δ2HAA values) of amino acids in all organisms are
substantially fractionated relative to growth water. In addition, they exhibit large variations …

2H/1H variation in microbial lipids is controlled by NADPH metabolism

RS Wijker, AL Sessions, T Fuhrer… - Proceedings of the …, 2019 - National Acad Sciences
The hydrogen-isotopic compositions (2H/1H ratios) of lipids in microbial heterotrophs are
known to vary enormously, by at least 40%(400‰) relative. This is particularly surprising …

[HTML][HTML] Metabolic imprints in the hydrogen isotopes of Archaeoglobus fulgidus tetraether lipids

JH Rhim, S Kopf, J McFarlin, AE Maloney… - … et Cosmochimica Acta, 2024 - Elsevier
The stable hydrogen isotope composition of archaeal lipids is emerging as a potential
paleoenvironmental proxy, adding to the well-established application of plant leaf wax …

The stable carbon and hydrogen isotopic composition of microbial fatty acids traces microbial metabolism in soils and peats

Y Zhang, BDA Naafs, X Huang, M Zhao, L Zeng… - … et Cosmochimica Acta, 2024 - Elsevier
The compound-specific stable carbon (δ 13 C) and hydrogen (δ 2 H) isotopic compositions
of microbial fatty acids have been widely used to trace microbial metabolism across a range …

Inverse hydrogen isotope fractionation indicates heterotrophic microbial production of long‐chain n‐alkyl lipids in desolate Antarctic ponds

X Chen, X Liu, H Jia, J **, W Kong, Y Huang - Geobiology, 2021 - Wiley Online Library
Abstract Long‐chain (> C25) n‐alkyl lipids have long been considered biomarkers for higher
plant leaf waxes and widely applied for paleoclimate and paleoenvironmental …