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Colour-scent associations in a tropical orchid: Three colours but two odours by Roxane Delle-Vedove; Nicolas Juillet; Jean-Marie Bessière; Claude Grison; Nicolas Barthes; Thierry Pailler; Laurent Dormont; Bertrand Schatz is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.
What is Colour-scent associations in a tropical orchid: Three colours but two odours about?
Colour and scent are the major pollinator attractants to flowers, and their production may be linked by shared biosynthetic pathways. Species with polymorphic floral traits are particularly relevant to study the joint evolution of floral traits. We used in this study the tropical orchid Calanthe sylvatica from Réunion Island. Three distinct colour varieties are observed, presenting lilac, white or purple flowers, and named respectively C. sylvatica var. lilacina (hereafter referred as var. lilacina), C. sylvatica var. alba (var. alba) and C. sylvatica var. purpurea (var. purpurea). We investigated the composition of the floral scent produced by these colour varieties using the non-invasive SPME technique in the wild. Scent emissions are dominated by aromatic compounds. Nevertheless, the presence of the terpenoid (E)-4,8-dimethylnona-1,3,7-triène (DMNT) is diagnostic of var. purpurea, with the volatile organic compounds (VOC) produced by some individuals containing up to 60% of DMNT. We evidence specific colour-scent associations in C. sylvatica, with two distinct scent profiles in the three colour varieties: the lilacina-like profile containing no or very little DMNT ( 2%). Calanth
Who reads Colour-scent associations in a tropical orchid: Three colours but two odours?
It is typically read by researchers, students, and practitioners in Biochemistry, Genetics and Molecular Biology.
- Author
- Roxane Delle-Vedove; Nicolas Juillet; Jean-Marie Bessière; Claude Grison; Nicolas Barthes; Thierry Pailler; Laurent Dormont; Bertrand Schatz
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0031-9422)
- Published
- 2011
- Language
- EN
- Field
- Biochemistry, Genetics and Molecular Biology (Life Sciences)