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Passiflora maliformis is an introduced plant in Australia but its flowers are known to attract the native Jarvis’s fruit fly, Bactrocera jarvisi (Tryon). The present study identifies and quantifies likely attractant(s) of male B. jarvisi in P. maliformis flowers. The chemical compositions of the inner and outer coronal filaments, anther, stigma, ovary, sepal, and petal of P. maliformis were separately extracted with ethanol and analyzed using gas chromatography-mass spectrometry (GC-MS). Polyisoprenoid lipid precursors, fatty acids and their derivatives, and phenylpropanoids were detected in P. maliformis flowers. Phenylpropanoids included raspberry ketone, cuelure, zingerone, and zingerol, although compositions varied markedly amongst the flower parts. P. maliformis flowers were open for less than one day, and the amounts of some of the compounds decreased throughout the day. The attraction of male B. jarvisi to P. maliformis flowers is most readily explained by the presence of zingerone in these flowers.
Bibliographical noteCopyright the Author(s) 2020. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.
- Passion fruit flower
- Jarvis’s fruit fly
- Raspberry ketone
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Taylor, P., Clarke, A., Riegler, M., Kemp, D., Ponton, F., Cameron, S., Schutze, M., Cook, J., Papanicolaou, A., Dominiak, B., Jessup, A., Reynolds, O., Suckling, M., El Sayad, A., Mas, F., Royer, J., Schellhorn, N., Macfadyen, S., Wilson, C., MQRES Inter Tuition Fee only 2, M. I. T. F. O. 2. & MQRES Inter Tuition Fee only, M. I. T. F. O.
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