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An unusual 17α,21β(H)-bacteriohopanetetrol in Holocene sediments from Ace Lake (Antarctica)

Lookup NU author(s): Dr Helen Talbot

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Abstract

Whilst investigating the intact biohopanoid (bacteriohopanepolyol, BHP) distribution in Holocene sediments from Ace Lake (Antarctica), we found αβ-bacteriohopanetetrol in sediments aged up to 9400 yr 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, the structure had only been observed in species of the nitrogen fixing bacterium Frankia. Its presence in the sedimentary environment has implications for the interpretation of hopanoid ββ/αβ ratios in the geological record. © 2008 Elsevier Ltd. All rights reserved.

Publication metadata

Author(s): Talbot HM, Coolen M, Damsté J

Publication type: Article

Publication status: Published

Journal: Organic Geochemistry

Year: 2008

Volume: 39

Issue: 8

Pages: 1029-1032

Print publication date: 01/08/2008

ISSN (print): 0146-6380

ISSN (electronic): 1873-5290

Publisher: Pergamon

URL: http://dx.doi.org/10.1016/j.orggeochem.2008.01.008

DOI: 10.1016/j.orggeochem.2008.01.008

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