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Chemical basis for the relationship between ophrys orchids and their pollinators iii. volatile compounds of species in the ophrys sections fuciflorae and bombyliflorae as insect mimetic attractants excitants



Chemical basis for the relationship between ophrys orchids and their pollinators iii. volatile compounds of species in the ophrys sections fuciflorae and bombyliflorae as insect mimetic attractants excitants



Chemica Scripta 27(2): 313-325



Volatile compounds from the flowers of Ophrys scolopax attica, O. s. cornuta, O. s. scolopax, O. bombyliflora, and O. tenthredinifera belonging to the sections Fuciflorae and Bombyliflorae and from two pollinator species of the genus Eucera were analyzed by gas chromatography and mass spectrometry. The volatiles were enriched through solvent extraction or sorption techniques. Preliminary behavioural tests in the field with various odouriferous samples were made using mainly Eucera longicornis males. A few volatile compounds, such as geraniol and linalool, were found in certain species of the Ophrys and the Eucera genera. Possible excitants/attractants in the pollination relationship, taxonomical classification and hybridization based on the present chemical findings are discussed.

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Accession: 004936267

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