Lipid biomarkers in Hamelin Pool microbial mats and stromatolites

Michelle A. Allen; Brett A. Neilan; Brendan P. Burns; Linda L. Jahnke; Roger E. Summons

doi:10.1016/j.orggeochem.2010.07.007

Lipid biomarkers in Hamelin Pool microbial mats and stromatolites

Michelle A. Allen, Brett A. Neilan^*, Brendan P. Burns, Linda L. Jahnke, Roger E. Summons

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

52 Citations (Scopus)

Abstract

Comprehensive lipid biomarker profiles were determined for extant intertidal columnar stromatolites and non-lithified smooth and pustular microbial mats from Hamelin Pool, Shark Bay, Western Australia. Hydrocarbons, alkyl (wax) esters, sterols, fatty acids, triterpenoids and ether-linked hydrocarbons were analysed using gas chromatography-mass spectrometry (GC-MS) and triterpenoids were analysed using high temperature GC-MS. Cyanobacterial markers were abundant in each sample and lipids diagnostic of heterotrophic bacteria, sulfate-reducing bacteria, anoxygenic phototropic bacteria and archaea were also detected. Limited input from higher plants and diatoms was observed. For the first time, 2-methylhopanoids were detected in Hamelin Pool microbial communities. The overall lipid profiles of the three sediment types were similar, suggesting that extant non-lithified microbial mats and stromatolites can comprise similar microbial communities.

Original language	English
Pages (from-to)	1207-1218
Number of pages	12
Journal	Organic Geochemistry
Volume	41
Issue number	11
DOIs	https://doi.org/10.1016/j.orggeochem.2010.07.007
Publication status	Published - Nov 2010

Access to Document

10.1016/j.orggeochem.2010.07.007

Cite this

@article{3e49f59502124c0fbb2cbd30f7832743,

title = "Lipid biomarkers in Hamelin Pool microbial mats and stromatolites",

abstract = "Comprehensive lipid biomarker profiles were determined for extant intertidal columnar stromatolites and non-lithified smooth and pustular microbial mats from Hamelin Pool, Shark Bay, Western Australia. Hydrocarbons, alkyl (wax) esters, sterols, fatty acids, triterpenoids and ether-linked hydrocarbons were analysed using gas chromatography-mass spectrometry (GC-MS) and triterpenoids were analysed using high temperature GC-MS. Cyanobacterial markers were abundant in each sample and lipids diagnostic of heterotrophic bacteria, sulfate-reducing bacteria, anoxygenic phototropic bacteria and archaea were also detected. Limited input from higher plants and diatoms was observed. For the first time, 2-methylhopanoids were detected in Hamelin Pool microbial communities. The overall lipid profiles of the three sediment types were similar, suggesting that extant non-lithified microbial mats and stromatolites can comprise similar microbial communities.",

author = "Allen, {Michelle A.} and Neilan, {Brett A.} and Burns, {Brendan P.} and Jahnke, {Linda L.} and Summons, {Roger E.}",

year = "2010",

month = nov,

doi = "10.1016/j.orggeochem.2010.07.007",

language = "English",

volume = "41",

pages = "1207--1218",

journal = "Organic Geochemistry",

issn = "0146-6380",

publisher = "Elsevier",

number = "11",

}

TY - JOUR

T1 - Lipid biomarkers in Hamelin Pool microbial mats and stromatolites

AU - Allen, Michelle A.

AU - Neilan, Brett A.

AU - Burns, Brendan P.

AU - Jahnke, Linda L.

AU - Summons, Roger E.

PY - 2010/11

Y1 - 2010/11

N2 - Comprehensive lipid biomarker profiles were determined for extant intertidal columnar stromatolites and non-lithified smooth and pustular microbial mats from Hamelin Pool, Shark Bay, Western Australia. Hydrocarbons, alkyl (wax) esters, sterols, fatty acids, triterpenoids and ether-linked hydrocarbons were analysed using gas chromatography-mass spectrometry (GC-MS) and triterpenoids were analysed using high temperature GC-MS. Cyanobacterial markers were abundant in each sample and lipids diagnostic of heterotrophic bacteria, sulfate-reducing bacteria, anoxygenic phototropic bacteria and archaea were also detected. Limited input from higher plants and diatoms was observed. For the first time, 2-methylhopanoids were detected in Hamelin Pool microbial communities. The overall lipid profiles of the three sediment types were similar, suggesting that extant non-lithified microbial mats and stromatolites can comprise similar microbial communities.

AB - Comprehensive lipid biomarker profiles were determined for extant intertidal columnar stromatolites and non-lithified smooth and pustular microbial mats from Hamelin Pool, Shark Bay, Western Australia. Hydrocarbons, alkyl (wax) esters, sterols, fatty acids, triterpenoids and ether-linked hydrocarbons were analysed using gas chromatography-mass spectrometry (GC-MS) and triterpenoids were analysed using high temperature GC-MS. Cyanobacterial markers were abundant in each sample and lipids diagnostic of heterotrophic bacteria, sulfate-reducing bacteria, anoxygenic phototropic bacteria and archaea were also detected. Limited input from higher plants and diatoms was observed. For the first time, 2-methylhopanoids were detected in Hamelin Pool microbial communities. The overall lipid profiles of the three sediment types were similar, suggesting that extant non-lithified microbial mats and stromatolites can comprise similar microbial communities.

UR - http://www.scopus.com/inward/record.url?scp=77957857556&partnerID=8YFLogxK

U2 - 10.1016/j.orggeochem.2010.07.007

DO - 10.1016/j.orggeochem.2010.07.007

M3 - Article

AN - SCOPUS:77957857556

VL - 41

SP - 1207

EP - 1218

JO - Organic Geochemistry

JF - Organic Geochemistry

SN - 0146-6380

IS - 11

ER -

Lipid biomarkers in Hamelin Pool microbial mats and stromatolites

Abstract

Access to Document

Other files and links

Fingerprint

Cite this