Volatiles from the flowers of four species in the sections arachnitiformes and araneiferae of the genus Ophrys as insect mimetic attractants |
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| Affiliation: | 1. Laboratório de Botânica, Universidade Feevale, ERS-239, 2755 Novo Hamburgo, Rio Grande do Sul, Brazil;2. Laboratório de Toxicologia, Universidade Feevale, ERS-239, 2755 Novo Hamburgo, Rio Grande do Sul, Brazil;1. College of Horticultural and Plant Protection, Inner Mongolia Agricultural University, Inner Mongolia Key Laboratory of Wild Peculiar Vegetable Germplasm Resource and Germplasm Enhancement, Huhhot 010019, China;2. Special Crops Institute, Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Huhhot 010031, China |
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| Abstract: | Volatile compounds from flowering plants of Ophrys sphecodes atrata, O.s. litigiosa, O.s. provincialis and O. splendida were collected on Porapak Q and identified by GC/MS. Major compounds released were 2-heptanol, 2-nonanol, 2-heptanone, 2-nonanone and α-nonanone and α-pinene. Large amounts of mono- and diunsaturated tridecanes were found in O. splendida. Comparisons of flower scents and the cephalic secretions of their pollinators indicate chemical mimetism. Chemotaxonomic comparisons of the volatiles released by the flowering plants are also made. |
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