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Title

ent-Labdane glycosides from the aquatic plant Potamogeton lucens and analytical evaluation of the lipophilic extract constituents of various Potamogeton species
Authors
Waridel, Patrice
Wolfender, Jean-Luc
Lachavanne, Jean-Bernard
Hostettmann, Kurt
Published in Phytochemistry. 2004, vol. 65, p. 945-954
Abstract Two new ent-labdane glycosides, one known furano-ent-labdane and a new hydroxylated fatty acid were isolated from the dichloromethane extract of the freshwater aquatic plant Potamogeton lucens. The new compounds were assigned the structures of beta-D-glucopyranosyl-8(17),13-ent-labdadien-16,15-olid-18-oate, 18-beta-D-glucopyranosyloxy-8(17),13-ent-labdadien-16,15-olide and 13(R)-hydroxy-octadeca-(9Z,11E,15Z)-trien-oic acid by spectroscopic means. The algicidal activity of these compounds was tested against Raphidocelis subcapitata. Based on our previous study of Potamogeton pectinatus, other constituents were identified in P. lucens by LC-UV-MS, LC-NMR and GC-MS. The lipophilic extract profiles of both species are presented. Two other species, Potamogeton perfoliatits and P. crispus, were also investigated by analytical comparison of their non-polar extracts. The distribution of ent-labdanes characterized in Potamogeton is summarized.
Keywords Potamogeton lucens — P. pectinatus — P. perfoliatus — P. crispus — Potamogetonaceae — Spectroscopic analysis — LC-MS — LC-NMR — Ent-labdane diterpenes — Glycosides — Algicidal activity
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Faculté des sciences / Section des sciences de la Terre et de l'Environnement / Département F.-A. Forel des sciences de l'environnement et de l'eau
Faculté des sciences / Section des sciences pharmaceutiques
Citation
(ISO format) 		WARIDEL, Patrice et al. ent-Labdane glycosides from the aquatic plant Potamogeton lucens and analytical evaluation of the lipophilic extract constituents of various Potamogeton species. In: Phytochemistry, 2004, vol. 65, p. 945-954. https://archive-ouverte.unige.ch/unige:10841

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Deposited on : 2010-08-26

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