A Specific Blend of Drakolide and Hydroxymethylpyrazines: An Unusual Pollinator Sexual Attractant Used by the Endangered Orchid Drakaea micrantha
| Autor: | Adrian Scaffidi, Ryan D. Phillips, Gavin R. Flematti, Rod Peakall, Björn Bohman, Alexandre N. Sobolev, Monica M. Y. Tan, Stephen A. Moggach |
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| Rok vydání: | 2019 |
| Předmět: |
biology
Pollination 010405 organic chemistry media_common.quotation_subject Endangered species Zoology General Chemistry Insect Plants 010402 general chemistry biology.organism_classification 01 natural sciences Pheromones Catalysis 0104 chemical sciences Drakaea Pollinator Sex pheromone Ophrys sphegodes Identification (biology) Orchidaceae media_common |
| Zdroj: | Angewandte Chemie International Edition. 59:1124-1128 |
| ISSN: | 1521-3773 1433-7851 |
| DOI: | 10.1002/anie.201911636 |
| Popis: | Bioactive natural products underpin the intriguing pollination strategy used by sexually deceptive orchids. These compounds, which mimic the sex pheromones of the female insect, are emitted in particular blends to lure male insect pollinators of specific species. By combining methods from field biology, analytical chemistry, electrophysiology, crystallography, and organic synthesis, we report that an undescribed β-hydroxylactone, in combination with two specific hydroxymethylpyrazines, act as pollinator attractants in the rare hammer orchid Drakaea micrantha. This discovery represents an unusual case of chemically unrelated compounds being used together as a sexual attractant. Furthermore, this is the first example of the identification of pollinator attractants in an endangered orchid, enabling the use of chemistry in orchid conservation. Our synthetic blend is now available to be used in pollinator surveys to locate suitable sites for plant conservation translocations. |
| Databáze: | OpenAIRE |
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