Novel Floral Scent Compounds from Night-Blooming Araceae Pollinated by Cyclocephaline Scarabs (Melolonthidae, Cyclocephalini)

Autor(en)
Artur Campos D. Maia, Christopher Grimm, Mario Schubert, Florian Etl, Eduardo Gomes Gonçalves, Daniela Maria Do Amaral Ferraz Navarro, Stefan Schulz, Stefan Dötterl
Abstrakt

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”.

Organisation(en)
Department für Botanik und Biodiversitätsforschung
Externe Organisation(en)
Universidade Federal de Pernambuco, Technische Universität Carolo-Wilhelmina zu Braunschweig, Paris-Lodron Universität Salzburg, Dom Bosco Catholic University
Journal
Journal of Chemical Ecology
Band
45
Seiten
204-213
Anzahl der Seiten
10
ISSN
1573-1561
DOI
https://doi.org/10.1007/s10886-018-1018-1
Publikationsdatum
2019
Peer-reviewed
Ja
ÖFOS 2012
106008 Botanik, 106042 Systematische Botanik, 106012 Evolutionsforschung
Link zum Portal
https://ucris.univie.ac.at/portal/de/publications/novel-floral-scent-compounds-from-nightblooming-araceae-pollinated-by-cyclocephaline-scarabs-melolonthidae-cyclocephalini(48f99e1e-13d3-45b8-a872-f942086f22a5).html