Characteristic alatoid ‘cineole cassette’ monoterpene synthase present in Nicotiana noctiflora

Characteristic alatoid ‘cineole cassette’ monoterpene synthase present in Nicotiana noctiflora Nicotiana species of the section Alatae emit a characteristic floral scent comprising the‚ cineole cassette’ monoterpenes 1,8-cineole, limonene, myrcene, β-pinene, α-pinene, sabinene and α-terpineol. All previously isolated ‘cineole cassette’-monoterpene synthase genes are multi product enzymes that synthesize the seven compounds of the ‘cineole cassette’. Interestingly, so far this ‘alatoid’ trait was only shared with the eponymous species Nicotiana suaveolens of the sister section Suaveolentes. To determine the origin of the ‘cineole cassette’ monoterpene phenotype other potential parent species of section Noctiflorae or Petunoides as well as of the distantly related section Trigonophyllae were analysed. A monoterpene synthase producing the set of ‘cineole cassette’ compounds was isolated from N. noctiflorae. N. obtusifolia emitted solely 1,8-cineole and no monoterpenes were found in floral scents of N. petunoides and N. palmeri. Interestingly, the phylogenetic analysis clustered the new gene of N. noctiflora closely to the terpineol synthase genes of e.g. N. alata rather than to cineole synthase genes of e.g. N. forgetiana. Plant Molecular Biology Springer Journals

Characteristic alatoid ‘cineole cassette’ monoterpene synthase present in Nicotiana noctiflora

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Springer Netherlands
Copyright © 2014 by Springer Science+Business Media Dordrecht
Life Sciences; Plant Sciences; Biochemistry, general; Plant Pathology
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  • Molecular phylogeny of Nicotiana (Solanaceae) based on the nucleotide sequence of the matK gene
    Aoki, S; Ito, M
  • Phylogenetic relationships in Nicotiana (Solanaceae) inferred multiple plastid DNA regions
    Clarkson, JJ; Knapp, S; Garcia, VF; Olmstead, RG; Leitch, AR; Chase, MW
  • Biogeography of Nicotiana section Suaveolentes (Solanaceae) reveals geographical tracks in arid Australia
    Ladiges, PY; Marks, CE; Nelson, G
  • Regulation of simultaneous synthesis of floral scent terpenoids by the 1,8-cineole synthase of Nicotiana suaveolens
    Roeder, S; Hartmann, AM; Effmert, U; Piechulla, B

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