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Bacterial populations recorded in diverse sedimentary biohopanoid distributions

Lookup NU author(s): Dr Helen Talbot, Dr Paul Farrimond

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Abstract

Bacteriohopanepolyols (BHPs) are membrane lipids produced by a wide range of prokaryotes, including many methanotrophs, methylotrophs, cyanobacteria, nitrogen fixing bacteria and purple non-sulfur bacteria. As a result of the taxanomic variation expressed by the producer organisms, BHPs offer great potential as molecular markers of bacterial populations and processes and can be used to fingerprint hopanoid-producing bacterial populations in modern environments as well as having the potential to provide a valuable record of past bacterial community structure. Here we show that the diversity of BHPs in many recent sedimentary environments is considerably more complex than previously envisaged and can be used to readily identify organic matter derived from diverse groups of organisms as well as environmentally significant bio- and geochemical processes. © 2007 Elsevier Ltd. All rights reserved.

Publication metadata

Author(s): Talbot HM, Farrimond P

Publication type: Article

Publication status: Published

Journal: Organic Geochemistry

Year: 2007

Volume: 38

Issue: 8

Pages: 1212-1225

Print publication date: 01/08/2007

ISSN (print): 0146-6380

ISSN (electronic): 1873-5290

Publisher: Pergamon

URL: http://dx.doi.org/10.1016/j.orggeochem.2007.04.006

DOI: 10.1016/j.orggeochem.2007.04.006

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