Publication Date:
2022-05-26
Description:
Author Posting. © Elsevier B.V., 2008. This is the author's version of the work. It is posted here by permission of Elsevier B.V. for personal use, not for redistribution. The definitive version was published in Organic Geochemistry 39 (2008): 1029-1032, doi:10.1016/j.orggeochem.2008.01.008.
Description:
Whilst investigating the intact biohopanoid (bacteriohopanepolyol, BHP) distribution in
Holocene sediments from Ace Lake (Antarctica), we have identified the presence of ab-
bacteriohopanetetrol in sediments aged up to 9400 years BP. To our knowledge, this is
the first time that an intact polyfunctionalised BHP with the “geological” 17α,21β(H)
configuration has been identified in a sediment. Previously, this structure has only been
observed in species of the nitrogen fixing bacterium Frankia. Its presence here in the
sedimentary environment has implications for the interpretation of hopanoid ββ/αβ
ratios in the geological record.
Description:
This work
was supported by grants from the Australian Antarctic Science Advisory Committee
(1166 to J.V.) and the Netherlands Organization for Scientific Research (NWO;
851.20.006 to J.S.S.D. and NWO-VENI grant 016.051.014 to M.J.L.C.) We gratefully
acknowledge the NERC for funding (HMT) and The Science Research Infrastructure
Fund (SRIF) from HEFCE for funding the purchase of the Thermo Electron Finnigan
LCQ ion trap mass spectrometer.
Keywords:
Ace Lake
;
Bacteriohopanepolyols
;
αβ-bacteriohopanetetrol
;
Holocene
Repository Name:
Woods Hole Open Access Server
Type:
Preprint
Format:
application/pdf
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