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Diagenetic degradation products of bacteriohopanepolyols produced by Rhodopseudomonas palustris strain TIE-1

Authors
  • Eickhoff, Merle
  • Birgel, Daniel
  • Talbot, Helen M.
  • Peckmann, Jörn
  • Kappler, Andreas1, 2, 3, 4, 5, 6, 7, 8
  • 1 Geomicrobiology Group
  • 2 Center for Applied Geoscience
  • 3 University of Tübingen
  • 4 Department of Geodynamics and Sedimentology
  • 5 University of Vienna
  • 6 School of Civil Engineering and Geosciences
  • 7 Drummond Building
  • 8 Newcastle University
Type
Published Article
Journal
Organic Geochemistry
Publisher
Elsevier
Publication Date
Jan 01, 2014
Accepted Date
Jan 08, 2014
Volume
68
Pages
31–38
Identifiers
DOI: 10.1016/j.orggeochem.2014.01.002
Source
Elsevier
License
Unknown

Abstract

Hopanoids are pentacyclic triterpenoids commonly found in soils and sediments and are used as biomarkers for recent or past bacterial communities. While hopanes are the ultimate degradation products of bacteriohopanepolyols (BHPs), only a few BHPs, such as 32,35-anhydrobacteriohopanetetrol (anhydroBHT), have been identified as early diagenetic degradation products. Here, we report on diagenetic degradation products of BHPs produced by Rhodopseudomonas palustris strain TIE-1 after exposure to elevated pressure and temperature. While bacteriohopanetetrol (BHT) was degraded to various anhydroBHT isomers, new N-containing degradation products were discovered and tentatively assigned as anhydroaminotriols.

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