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Discovery of tetrasubstituted pyrazines as semiochemicals in a sexually deceptive orchid

Bohman, Bjorn; Jeffares, Lynne; Flematti, Gavin; Byrne, Lindsay T.; Skelton, Brian; Phillips, Ryan; Dixon, Kingsley; Peakall, Rodney; Barrow, Russell


Sexually deceptive orchids employ mimicry of insect sex pheromones to exploit a diverse group of pollinators. The chemical structures of five semiochemicals (1-3, 7, 8) produced by populations of the warty hammer orchid, Drakaea livida, pollinated by a thynnine wasp in the genus Catocheilus were elucidated. With the exception of (2,5-dimethylpyrazin-3-yl)methyl 3-methylbutanoate (7), all active compounds were tetrasubstituted pyrazines, including hydroxymethyl (1) and ester (2 and 3)...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
Source: Journal of Natural Products
DOI: 10.1021/np300388y


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