Abstract
Bacteriohopanepolyols, or BHPs, are bacterial membrane lipids with promising and diverse biomarker applications. In particular, a rare stereoisomer of the ubiquitous bacteriohopanetetrol (BHT) is of interest, as the anaerobic ammonium oxidation (anammox) bacterium genus ‘Candidatus Scalindua' is its only known producer in marine systems [1]. Analysis of “BHT isomer” could present a valuable approach to investigate marine anoxia and its relationship to the nitrogen cycle [1]. This is of particular interest as anthropogenic inputs are causing expansions and fluctuations of modern marine oxygen minimum zones [2]. As BHPs can be preserved in sediments for at least ~55 Ma [3], BHT isomer has potential as a marker of marine anoxia and nitrogen cycling during paleo-anoxic events. Further, measuring the full suite of BHPs alongside BHT isomer may allow us to interpret additional environmental signals, as BHPs can indicate stress conditions, and serve as biomarkers for other bacterial communities [4]. This understanding of past nitrogen cycle responses to marine anoxia will be valuable to predict future change.
DOI
10.3997/2214-4609.201902857
Publication Date
2019-09-01
Event
29th International Meeting on Organic Geochemistry, Sep 2019
Publication Title
29th International Meeting on Organic Geochemistry, IMOG 2019
Publisher
European Association of Geoscientists & Engineers
ISBN
9789462823044
Embargo Period
2024-11-25
Recommended Citation
Schwartz-Narbonne, R., Blewett, J., Lengger, S., & et al. (2019) 'Bacteriohopanepolyol analysis by gas chromatography-triple quadrupole mass spectrometry for anammox biomarker detection', 29th International Meeting on Organic Geochemistry, IMOG 2019, . European Association of Geoscientists & Engineers: Available at: https://doi.org/10.3997/2214-4609.201902857
