| Title: | Flower scent of Ceropegia stenantha: electrophysiological activity and synthesis of novel components |
| Author(s): | Heiduk A; Haenni JP; Meve U; Schulz S; Dotterl S; |
| Address: | "Department of Biosciences, Plant Ecology, University of Salzburg, Hellbrunnerstr. 34, 5020, Salzburg, Austria. annemarie.heiduk@gmx.net. Department of Plant Systematics, University of Bayreuth, Bayreuth, Germany. annemarie.heiduk@gmx.net. Natural History Museum Neuchatel, Neuchatel, Switzerland. Department of Plant Systematics, University of Bayreuth, Bayreuth, Germany. Institute of Organic Chemistry, Technische Universitat Braunschweig, Brunswick, Germany. Department of Biosciences, Plant Ecology, University of Salzburg, Hellbrunnerstr. 34, 5020, Salzburg, Austria" |
| Journal Title: | J Comp Physiol A Neuroethol Sens Neural Behav Physiol |
| DOI: | 10.1007/s00359-019-01318-4 |
| ISSN/ISBN: | 1432-1351 (Electronic) 0340-7594 (Print) 0340-7594 (Linking) |
| Abstract: | "In specialized pollination systems, floral scents are crucial for flower-pollinator communication, but key volatiles that attract pollinators are unknown for most systems. Deceptive Ceropegia trap flowers are famous for their elaborate mechanisms to trap flies. Recent studies revealed species-specific floral chemistry suggesting highly specialized mimicry strategies. However, volatiles involved in fly attraction were until now identified in C. dolichophylla and C. sandersonii, only. We here present data on C. stenantha for which flower scent and pollinators were recently described, but volatiles involved in flower-fly communication stayed unknown. We performed electrophysiological measurements with scatopsid fly pollinators (Coboldia fuscipes) and identified 12 out of 13 biologically active floral components. Among these volatiles some were never described from any organism but C. stenantha. We synthesized these components, tested them on antennae of male and female flies, and confirmed their biological activity. Overall, our data show that half of the volatiles emitted from C. stenantha flowers are perceived by male and female fly pollinators and are potentially important for flower-fly communication in this pollination system. Further studies are needed to clarify the role of the electrophysiologically active components in the life of scatopsid fly pollinators, and to fully understand the pollination strategy of C. stenantha" |
| Keywords: | "Animals Behavior, Animal *Diptera Female Flowers/*chemistry Male Odorants *Pollination Sarraceniaceae/*chemistry Volatile Organic Compounds/chemistry 3-Acetyloxy-1-phenylbutan-2-one 3-Acetyloxy-4-phenylbutan-2-one Electrophysiology Flower scent Scatopsida;" |
| Notes: | "MedlineHeiduk, Annemarie Haenni, Jean-Paul Meve, Ulrich Schulz, Stefan Dotterl, Stefan eng Research Support, Non-U.S. Gov't Germany 2019/03/15 J Comp Physiol A Neuroethol Sens Neural Behav Physiol. 2019 Jun; 205(3):301-310. doi: 10.1007/s00359-019-01318-4. Epub 2019 Mar 13" |
