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Production and Emission of Volatile Compounds by Petal Cells.

Abstract : We localized the tissues and cells that contribute to scent biosynthesis in scented and nonscented Rosa x hybrida cultivars as part of a detailed cytological analysis of the rose petal. Adaxial petal epidermal cells have a typical conical, papillate shape whereas abaxial petal epidermal cells are flat. Using two different techniques, solid/liquid phase extraction and headspace collection of volatiles, we showed that, in roses, both epidermal layers are capable of producing and emitting scent volatiles, despite the different morphologies of the cells of these two tissues. Moreover, OOMT, an enzyme involved in scent molecule biosynthesis, was localized in both epidermal layers. These results are discussed in view of results found in others species such as Antirrhinum majus, where it has been shown that the adaxial epidermis is the preferential site of scent production and emission.
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Submitted on : Friday, November 16, 2007 - 4:19:27 PM
Last modification on : Friday, January 21, 2022 - 3:31:18 AM
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  • HAL Id : ujm-00188391, version 1
  • PRODINRA : 251142


Sylvie Baudino, Jean-Claude Caissard, Véronique Bergougnoux, Frédéric Jullien, Jean-Louis Magnard, et al.. Production and Emission of Volatile Compounds by Petal Cells.. Plant Signaling and Behavior, Taylor & Francis, 2007, 2 (6), pp.525-526. ⟨ujm-00188391⟩



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