Article ; Online: Nocturnal floral scent profiles of Myrtaceae fruit crops.
2019 Volume 162, Page(s) 193–198
Abstract: Communication between plants and nocturnal pollinators in low light conditions is mainly guided by floral scents, which is well documented for plants pollinated by bats, moths, and beetles. Just recently, nocturnal bees have been added to the list of ... ...
| Abstract | Communication between plants and nocturnal pollinators in low light conditions is mainly guided by floral scents, which is well documented for plants pollinated by bats, moths, and beetles. Just recently, nocturnal bees have been added to the list of pollinators known to respond to floral scents of their host plants. Little is known about the floral scent chemistry of plants visited and pollinated by nocturnal bees. Among these plants are economically important fruit crops of the family Myrtaceae. We aimed to analyze the nocturnal floral scent profiles of 10 species of Myrtaceae (only diurnal P. cattleianum was sampled after sunrise) and address the following questions: i) What are the main floral scent compounds emitted by the species? ii) Are the floral scent profiles similar to those described for other species pollinated by nocturnal bees? Floral scents were collected by dynamic headspace and analyzed by GC-MS (gas chromatography - mass spectrometry). The total amount of scent trapped ranged from 74 ng/flower/hour for Syzygium malaccense to 7556 ng/flower/hour for Eugenia dysenterica. A total of 46 floral scent compounds were detected in the samples with the most abundant compounds being the aromatics benzaldehyde, benzyl alcohol, 2-phenylethanol, methyl salicylate, 2-phenylethyl acetate, and benzyl acetate; the aliphatic compound 1-octanol; and the monoterpene linalool. The different species exhibited different relative scent patterns. Overall, the nocturnal scents of the studied species of Myrtaceae are dominated by aromatic compounds, which is in contrast to the scent profiles described for other plants pollinated by nocturnal bees. |
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| MeSH term(s) | Flowers/chemistry ; Fruit/growth & development ; Myrtaceae/chemistry ; Myrtaceae/growth & development ; Odorants/analysis ; Time Factors | ||||||||||
| Language | English | ||||||||||
| Publishing date | 2019-03-30 | ||||||||||
| Publishing country | England | ||||||||||
| Document type | Journal Article | ||||||||||
| ZDB-ID | 208884-8 | ||||||||||
| ISSN | 1873-3700 ; 0031-9422 | ||||||||||
| ISSN (online) | 1873-3700 | ||||||||||
| ISSN | 0031-9422 | ||||||||||
| DOI | 10.1016/j.phytochem.2019.03.011 | ||||||||||
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| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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