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A novel tri-unsaturated highly branched isoprenoid (HBI) alkene from the marine diatom Navicula salinicola

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    Embargo ends: 20/05/21

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Abstract

A novel tri-unsaturated C25 highly branched isoprenoid (HBI) alkene has been identified in a laboratory culture of the diatom Navicula salinicola and its structure determined using a combination of NMR spectroscopy and gas chromatography–mass spectrometry (GC–MS). This represents the first report of a C25 HBI in a marine diatom from the Navicula genus, although a different tri-unsaturated C25 HBI has been reported previously in the freshwater species N. sclesvicensis and unspecified HBIs have been identified in the brackish N. phyllepta. The newly characterised HBI contains a relatively unusual conjugated diene sub-unit, a structural feature only previously reported in some HBIs biosynthesised by a further marine diatom, Haslea ostrearia.

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Original languageEnglish
Article number104050
Number of pages4
JournalOrganic Geochemistry
Volume146
Early online date20 May 2020
DOIs
Publication statusPublished - Aug 2020
Peer-reviewedYes

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