The floral scent of Taccarum ulei (Araceae): Attraction of scarab beetle pollinators to an unusual aliphatic acyloin
| Autor: | Tobias Müller, Marc Gibernau, Artur Campos Dália Maia, Clemens Schlindwein, Karlheinz Seifert, Daniela Maria do Amaral Ferraz Navarro, Stephan Dötterl |
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| Přispěvatelé: | Universidade Federal de Pernambuco [Recife] (UFPE), Sciences pour l'environnement (SPE), Centre National de la Recherche Scientifique (CNRS)-Université Pascal Paoli (UPP), Department of Plant Systematics, Universität Bayreuth, Universidade Federal de Minas Gerais, Brazil, This research was partly financed by the German Ministry of Education and Research (BMBF) and the Brazilian National Council for Scientific and Technological Development (CNPq). |
| Rok vydání: | 2013 |
| Předmět: |
Male
0106 biological sciences Behavioral tests [SDV]Life Sciences [q-bio] Flowers Plant Science Dihydro-b-ionone Horticulture Biology 010603 evolutionary biology 01 natural sciences Biochemistry Araceae Terpene Cyclocephala celata Pollinator Botany [SDV.BV]Life Sciences [q-bio]/Vegetal Biology Animals Floral volatiles Cyclocephala cearae Pollination Molecular Biology Scarabaeidae Molecular Structure [SDV.BA]Life Sciences [q-bio]/Animal biology General Medicine [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics biology.organism_classification (S)-2-Hydroxy-5-methyl-3-hexanone Attraction Coleoptera Inflorescence Taccarum Odorants Taccarum ulei Female Fatty Alcohols Cyclocephala 010606 plant biology & botany |
| Zdroj: | Phytochemistry Phytochemistry, Elsevier, 2013, 93, pp.71-78. ⟨10.1016/j.phytochem.2013.03.005⟩ |
| ISSN: | 0031-9422 |
| DOI: | 10.1016/j.phytochem.2013.03.005 |
| Popis: | International audience; The strongly fragrant thermogenic inflorescences of Taccarum ulei (Araceae) are highly attractive to nightactive scarab beetles of Cyclocephala celata and C. cearae (Scarabaeidae, Cyclocephalini), which are effective pollinators of plants in the wild in northeastern Brazil. GC–MS analysis of headspace floral scent samples of T. ulei established that two constituents, (S)-2-hydroxy-5-methyl-3-hexanone (an aliphatic acyloin rarely detected in flowers) and dihydro-b-ionone (an irregular terpene) accounted for over 96% of the total scent discharge. Behavioral tests (in both field and cages) showed that male and female C. celata and C. cearae were attracted to traps baited with a synthetic mixture of both compounds; however, they were also responsive to (S)-2-hydroxy-5-methyl-3-hexanone alone, which thus functions as a specific attractive cue. These findings support other recent research in suggesting that angiosperms pollinated by cyclocephaline scarab beetles release floral odors of limited complexity in terms of numbers of compounds, but often dominated by unusual compounds that may ensure attraction of specific pollinator species |
| Databáze: | OpenAIRE |
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