Methoxy-serratenes in a soil under conifers and their potential use as biomarkers of Pinaceae - Archive ouverte HAL Access content directly
Journal Articles Organic Geochemistry Year : 2013

Methoxy-serratenes in a soil under conifers and their potential use as biomarkers of Pinaceae

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Abstract

In the frame of a study aimed at defining new soil molecular biomarkers that could attest to former land use and that could also be screened in lake sediments for palaeoenvironmental reconstruction, we analysed the 2-4 cm depth layer of a soil developed under a conifer forest in the Lake Aydat catchment (French Massif Central). The lipid fraction of the sample contained 12 serratenoids bearing at least a methoxyl (OMe) group at C-3 or C-21 and various additional functional groups (alcohol, ketone or acetate). A survey of the literature provided indubitable evidence that these compounds are typical for Pinaceae species, in agreement with the surrounding vegetation at the sampling site. Due to the economic and ecological importance of the taxa, the presence of these highly specific compounds in soil, sediments or peat should therefore help in unravelling the timing of forestry activity.
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Dates and versions

insu-00759832 , version 1 (03-12-2012)
insu-00759832 , version 2 (20-02-2013)

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Claude Le Milbeau, Marlène Lavrieux, Jérémy Jacob, Jean-Gabriel Bréhéret, Renata Zocatelli, et al.. Methoxy-serratenes in a soil under conifers and their potential use as biomarkers of Pinaceae. Organic Geochemistry, 2013, 55, pp.45-54. ⟨10.1016/j.orggeochem.2012.11.008⟩. ⟨insu-00759832v2⟩
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