Archaeol - a biomarker for foregut fermentation in modern and ancient herbivorous mammals?

被引：38

作者：

Gill, Fiona L. ^{[1
]}

Dewhurst, Richard J. ^{[2
]}

Dungait, Jennifer A. J. ^{[1
]}

Evershed, Richard P. ^{[1
]}

Ives, Luke ^{[1
]}

Li, Cheng-Sen ^{[3
]}

Pancost, Richard D. ^{[1
]}

Sullivan, Martin ^{[1
]}

Bera, Subir ^{[4
]}

Bull, Ian D. ^{[1
]}

机构：

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

[2] TEAGASC, Anim Biosci Ctr, Dunsany, Meath, Ireland

[3] Chinese Acad Sci, Inst Bot, Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China

[4] Univ Calcutta, Dept Bot, Palaeobot Palynol Lab, Kolkata 700019, India

来源：

ORGANIC GEOCHEMISTRY | 2010年 / 41卷 / 05期

基金：

英国生物技术与生命科学研究理事会;

关键词：

QUANTITATIVE-DETERMINATION; DINOSAUR COPROLITES; FECAL STEROLS; BILE-ACIDS; TOFTS NESS; COPROSTANOL; SOIL; CHOLESTEROL; INDICATOR; ANIMALS;

D O I：

10.1016/j.orggeochem.2010.02.001

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 pilot study was conducted to investigate the hydroxylated lipid content of faeces from a range of herbivorous animals with either foregut or hindgut fermenting digestive systems. Assessment of the sterol distributions derived from the faeces revealed that, whilst there were differences in the relative concentrations of individual compounds between species, there was no overall characteristic that could be used to differentiate between foregut and hindgut fermenters. However, the concentration of archaeol in each of the modern faeces varied between Sand 49 mu g g-1dry wt for the foregut fermenters, whilst archaeol was not detected in faeces from hindgut fermenters. Based on these results, it is proposed that archaeol might be a useful proxy for methanogenesis in foregut fermenting digestive systems and, further, that the presence of archaeol may be used to infer a foregut digestive origin for coprolites from ancient herbivores. Consistent with this proposal, analysis of a sub-fossil ovi-caprid coprolite yielded detectable quantities of archaeol. (C) 2010 Published by Elsevier Ltd.

引用

页码：467 / 472

页数：6

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