Authenticating wild Piper species (peppers) originating from islands in the Indian Ocean on the basis of morphological, genetic and chemical characteristics

Weil Mathieu, Leong Pock Tsy Jean-Michel, Razafimandimby Harizoly. 2021. Authenticating wild Piper species (peppers) originating from islands in the Indian Ocean on the basis of morphological, genetic and chemical characteristics. Phytochemistry, 190:112886, 9 p.

https://doi.org/10.1016/j.phytochem.2021.112886

Article de revue ; Article de recherche ; Article de revue à facteur d'impact

Version publiée - Anglais
Accès réservé aux personnels Cirad
Utilisation soumise à autorisation de l'auteur ou du Cirad.
Weil et al. 2021 Authenticating wild piper species.pdf
Télécharger (3MB) | Demander une copie

Quartile : Q1, Sujet : PLANT SCIENCES / Quartile : Q3, Sujet : BIOCHEMISTRY & MOLECULAR BIOLOGY

Résumé : As demand for pepper is rising to unprecedented levels, gaps in our knowledge are underlined by our inability to reliably distinguish the different species, in particular in the south-western Indian Ocean; this hampers the possibility of developing their economic potential and protect them efficiently. The aim of this study was to characterise two species of Piper (piperaceae) from Madagascar and one from Réunion Island via a multidisciplinary approach combining botany, genetics and chemistry and to propose authentication keys. Morphometric analyses were carried out on 22 quantitative and qualitative descriptors of the leaf and infructescence. Genetic analyses were conducted through DNA extraction, amplification by PCR and sequencing. Chemical analyses used spectrophotometric and chromatographic methods to determine concentrations in piperine and essential oil and describe the chemotypes of the sampled individuals. Our tri-disciplinary approach showed that the three peppers studied are very different from Piper nigrum L. Réunionese Piper borbonense and M3 Malagasy pepper clearly differ from the M1 Malagasy morphotype. Piper borbonense and M3 pepper appear to be closely related; a distinction could possibly be made at the variety (var.) or form (fa.) level on the basis of morphometry and according to piperine content for chemistry.

Mots-clés Agrovoc : Piper, identification, propriété physicochimique, morphologie végétale, anatomie végétale, phytogénétique, détermination des espèces, Piperaceae, huile essentielle, composition chimique

Mots-clés géographiques Agrovoc : Madagascar, La Réunion, France

Mots-clés complémentaires : Piper borbonense, piperine

Mots-clés libres : Piper borbonense, Piper spp., Piperaceae, Morphological diversity, Neighbour joining Sequence, Piperine, Essential oil

Classification Agris : F70 - Taxonomie végétale et phytogéographie
F50 - Anatomie et morphologie des plantes
F30 - Génétique et amélioration des plantes

Champ stratégique Cirad : CTS 1 (2019-) - Biodiversité

Auteurs et affiliations