Non-isoprenoid macrocyclic glycerol diethers associated with authigenic carbonates

被引：11

作者：

Baudrand, Marion ^{[1
]}

Grossi, Vincent ^{[1
]}

Pancost, Richard ^{[2
]}

Aloisi, Giovanni ^{[1
]}

机构：

[1] Univ Lyon 1, CNRS, UMR5125, F-69622 Villeurbanne, France

[2] Univ Bristol, Sch Chem, Bristol Biogeochem Res Ctr, Organ Geochem Unit, Bristol BS8 1TS, Avon, England

来源：

ORGANIC GEOCHEMISTRY | 2010年 / 41卷 / 12期

关键词：

METHANOCOCCUS-JANNASCHII; LIPIDS; MEMBRANE; BACTERIA; TETRAETHER; SULFIDE; ARCHAEA; METHANE; ALKANES; ACID;

D O I：

10.1016/j.orggeochem.2010.09.002

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

A series of novel non-isoprenoid macrocyclic glycerol diethers (McDGs) has been identified in authigenic carbonates formed from marine evaporites in Spain (Lorca Basin) and Egypt (Gemsa). They contain a C-32 diabolic acid-derived alkyl moiety (i.e. 15,16-dimethyltriacontane), with some components bearing additional methyl branching at C-7 and/or C-24, and show a similar distribution at each sampling site. These McGDs are suggested to have been synthesized by some extremophilic (thermophilic and/or halophilic) bacteria. Compound specific delta C-13 data indicate distinct carbon cycling by bacteria and archaea at both sites. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1341 / 1344

页数：4

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