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Title
Novel Floral Scent Compounds from Night-Blooming Araceae Pollinated by Cyclocephaline Scarabs (Melolonthidae, Cyclocephalini)
AuthorMaia, Artur Campos D. ; Grimm, Christopher ; Schubert, Mario ; Etl, Florian ; Gonçalves, Eduardo Gomes ; Navarro, Daniela Maria Do Amaral Ferraz ; Schulz, Stefan ; Dötterl, Stefan
Published in
Journal of Chemical Ecology, New York, 2018, Vol. 2018, page 1-10
PublishedNew York : Springer US, 2018
LanguageEnglish
Document typeJournal Article
Keywords (EN)Preparative gas chromatography / NMR spectroscopy / High resolution mass spectrometry / Floral scents / Volatile organic compounds / Attractants / Beetle pollination
ISSN1573-1561
URNurn:nbn:at:at-ubs:3-10121 Persistent Identifier (URN)
DOI10.1007/s10886-018-1018-1 
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Novel Floral Scent Compounds from Night-Blooming Araceae Pollinated by Cyclocephaline Scarabs (Melolonthidae, Cyclocephalini) [0.75 mb]
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Abstract (English)

Nocturnal flowering plants often release strong scents to attract their pollinators. Among night active flower visitors are cyclocephaline scarab beetles, which have been demonstrated to respond to uncommon volatile organic compounds released in high amounts by their host plants. In Araceae, the molecular structure of several such compounds is yet to be unveiled. We investigated headspace floral scent samples of Philodendron squamiferum, Thaumatophyllum mello-baretoanum, and Xanthosoma hylaeae by a variety of approaches, leading to the identification of novel compounds. Dehydrojasmone, (Z)-4-methylene-5-(pent-2-en-1-yl)cyclopent-2-en-1-one (1), (Z)-3-methylene-2-(pent-2-en-1-yl)cyclopentyl acetate (isojasmyl acetate, 3), and (E)-4,8-dimethylnona-1,3,7-trien-5-yl acetate (4) had not been previously reported, while full analytical data of the recently described (Z)-3-methylene-2-(pent-2-en-1-yl)cyclopentan-1-ol (isojasmol, 2) are presented here. All these compounds are derived from more common precursors, (Z)-jasmone and (E)-4,8-dimethyl-1,3,7-nonatriene, likely through biosynthetic “post-processing”.

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CC-BY-License (4.0)Creative Commons Attribution 4.0 International License