| Title: | Inter- and intraspecific variation in floral scent in the genus salix and its implication for pollination |
| Author(s): | Fussel U; Dotterl S; Jurgens A; Aas G; |
| Address: | "Ecological-Botanical Garden, University of Bayreuth, 95440, Bayreuth, Germany. ulrike.fuessel@uni-bayreuth.de" |
| DOI: | 10.1007/s10886-007-9257-6 |
| ISSN/ISBN: | 0098-0331 (Print) 0098-0331 (Linking) |
| Abstract: | "The floral scent composition of 32 European and two Asian Salix L. species (Salicaceae) was analyzed. Intra- and interspecific variation was compared for a subset of 8 species. All Salix species are dioecious and floral scent was collected from both male and female individuals by using a dynamic headspace MicroSPE method, and analyzed by GC-MS. A total of 48 compounds were detected, most of them being isoprenoids and benzenoids. Commonly occurring compounds included trans-beta-ocimene, cis-beta-ocimene, benzaldehyde, D-limonene, alpha-pinene, cis-3-hexenyl aceatate, linalool, 1,4-dimethoxybenzene, and beta-pinene. Two compounds, 1,4-dimethoxybenzene and trans-beta-ocimene, were responsible for most of the interspecific variation. In a subset of eight extensively sampled species, six had a characteristic floral scent composition; half of the pairwise species comparisons confirmed significant differences. In three of these eight species, intraspecific variability could be explained by sex differences. Variation in Salix floral scent may provide specific signals that guide pollinators and thus contribute to the reproductive isolation of compatible and cooccurring species" |
| Keywords: | Flowers/*metabolism Gas Chromatography-Mass Spectrometry *Pollen Reference Standards Salix/*physiology Species Specificity Terpenes/*metabolism; |
| Notes: | "MedlineFussel, Ulrike Dotterl, Stefan Jurgens, Andreas Aas, Gregor eng Research Support, Non-U.S. Gov't 2007/03/06 J Chem Ecol. 2007 Apr; 33(4):749-65. doi: 10.1007/s10886-007-9257-6. Epub 2007 Mar 2" |
