title: Non-volatile floral oils of Diascia spp. (Scrophulariaceae).
abstract: The floral oils of Diascia purpurea, Diascia vigilis, Diascia cordata, Diascia megathura, Diascia integerrima and Diascia barberae (Scrophulariaceae) were selectively collected from trichome elaiophores. The derivatized floral oils were analyzed by gas chromatography-mass spectrometry (GC-MS), whilst the underivatized samples were analysed by electrospray ionization mass spectrometry (ESI-MS) and Fourier-transform ion cyclotron resonance mass spectrometry (FTICR-MS). The most common constituents of the floral oils investigated are partially acetylated acylglycerols of (3R)-acetoxy fatty acids (C(14), C(16), and C(18)), as was proven with non-racemic synthetic reference samples. The importance of these oils for Rediviva bees is discussed in a co-evolutionary context.
authors.affiliation: Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle, Germany.
authors.forename: Kanchana
authors.initials: K
authors.lastname: Dumri
authors.forename: Lars
authors.initials: L
authors.lastname: Seipold
authors.forename: Jürgen
authors.initials: J
authors.lastname: Schmidt
authors.forename: Günter
authors.initials: G
authors.lastname: Gerlach
authors.forename: Stefan
authors.initials: S
authors.lastname: Dötterl
authors.forename: Allan G
authors.initials: AG
authors.lastname: Ellis
authors.forename: Ludger A
authors.initials: LA
authors.lastname: Wessjohann
mesh_terms: D000818:Animals; D035264:Flowers / Q000737:chemistry*; D013058:Mass Spectrometry; D015394:Molecular Structure; D010938:Plant Oils / Q000737:chemistry*; D028083:Scrophulariaceae / Q000737:chemistry*; D013045:Species Specificity
chemical_list: D010938:Plant Oils