CaltechAUTHORS
  A Caltech Library Service

Identification of polar lipid precursors of the ubiquitous branched GDGT orphan lipids in a peat bog in Northern Germany

Liu, Xiao-Lei and Leider, Arne and Gillespie, Aimee and Gröger, Jens and Versteegh, Gerard J. M. and Hinrichs, Kai-Uwe (2010) Identification of polar lipid precursors of the ubiquitous branched GDGT orphan lipids in a peat bog in Northern Germany. Organic Geochemistry, 41 (7). pp. 653-660. ISSN 0146-6380. https://resolver.caltech.edu/CaltechAUTHORS:20100805-095646251

[img] PDF - Published Version
Restricted to Repository administrators only
See Usage Policy.

695Kb

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20100805-095646251

Abstract

Two types of intact branched glycerol dialkyl glycerol tetraethers (GDGTs) were detected in peat bog samples from Bullenmoor, Northern Germany. Glucuronosyl and glucosyl branched GDGTs comprise on average ca. 4% of the microbial intact polar lipids in the anoxic, acidic peat layer ca. 20 cm below the surface of the bog, suggesting an important ecological role for the source microorganisms. No corresponding phospholipids were detected. Notably, glycosidic branched GDGTs are 5–10 times less abundant than their intact isoprenoid counterparts derived from Archaea, while branched GDGT core lipids exceed their isoprenoid analogues by about an order of magnitude. These contrasting relationships may reflect lower standing stocks of the biomass of producers of branched GDGTs, combined with higher population growth rates relative to soil Archaea. Search strategies for the microbial producers of these conspicuous orphan lipids should benefit from the discovery of their intact polar precursors.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/j.orggeochem.2010.04.004DOIUNSPECIFIED
ORCID:
AuthorORCID
Hinrichs, Kai-Uwe0000-0002-0739-9291
Additional Information:© 2010 Elsevier Ltd. Received 4 December 2009; revised 30 March 2010; accepted 13 April 2010. Associate Editor—P. Schaeffer. Available online 24 April 2010. We thank Dr. J. Blankenburg for support and providing information on sample location and the lower Saxony nature conservation authority of Landkreis Rotenburg for granting permission to access and sample Bullenmoor. We thank Dr. Lipp, Dr. Schubotz, Dr. Lin and Mr. Prieto for help with experimental and data analysis. We would also like to thank two anonymous reviewers for constructive comments. Funding was provided by the Deutsche Forschungsgemeinschaft through the international graduate college EUROPROX for X.-L.L., a Heisenberg fellowship to G.J.M.V., an ESF-MOCCHA grant to A.L. and through MARUM in form of a summer student fellowship to A.G. and general laboratory infrastructure.
Funders:
Funding AgencyGrant Number
Deutsche Forschungsgemeinschaft through the international graduate college EUROPROXUNSPECIFIED
ESF-MOCCHAUNSPECIFIED
MARUM Center for Marine Environmental SciencesUNSPECIFIED
Issue or Number:7
Record Number:CaltechAUTHORS:20100805-095646251
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20100805-095646251
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:19291
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:05 Aug 2010 17:28
Last Modified:09 Mar 2020 13:18

Repository Staff Only: item control page