Revisiting the precursors of the most abundant natural products on Earth: A look back at 30+ years of bacteriohopanepolyol (BHP) research and ahead to new …

S Kusch, D Rush - Organic Geochemistry, 2022 - Elsevier
In this review we look back on 30+ years of bacteriohopanepolyol (BHP) research within the
field of organic geochemistry. BHPs are ubiquitous, intact polar lipids in modern …

Organic biogeochemistry in the oxygen-deficient ocean: a review

SG Wakeham - Organic Geochemistry, 2020 - Elsevier
Oceanic oxygen-deficient zones (ODZs) encompass open ocean and coastal oxygen
minimum zones and euxinic marine basins. A primary goal of this review is to demonstrate …

Vitamin B12-dependent biosynthesis ties amplified 2-methylhopanoid production during oceanic anoxic events to nitrification

FJ Elling, JD Hemingway, TW Evans… - Proceedings of the …, 2020 - National Acad Sciences
Bacterial hopanoid lipids are ubiquitous in the geologic record and serve as biomarkers for
reconstructing Earth's climatic and biogeochemical evolution. Specifically, the abundance of …

Biomarker evidence for the occurrence of anaerobic ammonium oxidation in the eastern Mediterranean Sea during Quaternary and Pliocene sapropel formation

D Rush, HM Talbot, MTJ van der Meer… - …, 2019 - bg.copernicus.org
Abstract The eastern Mediterranean Sea sedimentary record is characterised by intervals of
organic-rich sapropel sediments, indicating periods of severe anoxia triggered by …

[HTML][HTML] A unique bacteriohopanetetrol stereoisomer of marine anammox

R Schwartz-Narbonne, P Schaeffer, EC Hopmans… - Organic …, 2020 - Elsevier
Anaerobic ammonium oxidation (anammox) is a major process of bioavailable nitrogen
removal from marine systems. Previously, a bacteriohopanetetrol (BHT) isomer, with …

[HTML][HTML] Marine nitrogen cycling dynamics under altering redox conditions: Insights from deposition of sapropels S1 and the ambiguous S2 in the Eastern …

ZR van Kemenade, A Cutmore, R Hennekam… - … et Cosmochimica Acta, 2023 - Elsevier
Abstract The eastern Mediterranean Sea (EMS) sedimentary record is periodically
interspersed with organic-rich 'sapropel'layers. Sapropels are characteristic of basin-wide …

[HTML][HTML] Analysis of non-derivatized bacteriohopanepolyols using UHPLC-HRMS reveals great structural diversity in environmental lipid assemblages

EC Hopmans, NT Smit, R Schwartz-Narbonne… - Organic …, 2021 - Elsevier
Bacteriohopanepolyols (BHPs) are lipids with great chemotaxonomic potential for microbial
populations and biogeochemical processes in the environment. The most commonly used …

Linking diatom-diazotroph symbioses to nitrogen cycle perturbations and deep-water anoxia: Insights from Mediterranean sapropel events

FJ Elling, JD Hemingway, JJ Kharbush… - Earth and Planetary …, 2021 - Elsevier
Elevated organic matter (OM) export flux promotes marine anoxia, thus increasing carbon
sequestration efficiency and decreasing atmospheric carbon dioxide levels. However, the …

Diverse origins of “soil marker” bacteriohopanepolyols in marine oxygen deficient zones

S Kusch, SG Wakeham, J Sepúlveda - Organic Geochemistry, 2021 - Elsevier
Bacteriohopanepolyols (BHPs) that are commonly associated with soil and peat
environments (“soil marker” BHPs), were analyzed along redox gradients in marine oxygen …

Stable isotope proxy records in tropical terrestrial environments

MI Bird, J Haig, X Hadeen, M Rivera-Araya… - Palaeogeography …, 2020 - Elsevier
The 'tropics' refers to an area that is loosely equatorial, characterized by relatively high
temperatures (at low altitude), comparatively low seasonal contrast in temperatures and …