Preliminary study on the phytochemical evolution of different Lamiaceae species based on iridoids. (February 2019)

• Record Type: Journal Article
• Authors: Frezza, Claudio; Venditti, Alessandro; Giuliani, Claudia; Foddai, Sebastiano; Maggi, Filippo; Fico, Gelsomina; Bianco, Armandodoriano; Serafini, Mauro
• Is Part Of: Biochemical systematics and ecology. Volume 82(2019)
• Page Start: 44
• Page End: 51
• Publication Date: 2019-02
• Subjects: Lamiaceae -- Phytochemistry -- Iridoids -- Evolution -- Sporne diagrams; Chemotaxonomy -- Periodicals; Biochemical variation -- Periodicals; Ecology -- Periodicals; Biochemistry -- Periodicals; Ecology -- Periodicals; Chimiotaxinomie -- Périodiques; Variation biochimique -- Périodiques; Écologie -- Périodiques; 578.012
• DOI: 10.1016/j.bse.2018.12.003
• Languages: English
• ISSNs: 0305-1978

Abstract

Abstract: In this work, an interesting potential application of phytochemistry is reported. In particular, we employed the Sporne diagrams to provide information about the evolution of some different Lamiaceae species in relation to their content in secondary metabolites. In more details, fifteen species belonging to six different genera were studied i.e. Ajuga L., Galeopsis L., Melittis L., Sideritis L., Stachys L. and Teucrium L. The selected secondary metabolites were iridoids because of their wide occurrence and distribution within all the family, thus providing a more accurate and general overview. Nineteen different compounds of this class were identified in the studied species. The aim of this work was to verify if the evolutionary data available in literature for the studied species and based on molecular studies, matched with those obtained from a more phytochemical approach or not. The final objective was to ascertain a correspondence between these two opposite methods. The results of this study clearly showed that, only in some cases, this correspondence was present. This may suggest the possibility to use both methods for drawing phylogenetic trees of plants. Anyway, this study is not general and is quite limited in studied species and in collection areas and does not intend to affirm its absolute accuracy even though it may be a good starting point for future researches in this field. Highlights: Fifteen Lamiaceae species were studied for their morphological characteristics. Nineteen iridoids were isolated and identified in these Lamiaceae species. The evolution diagrams of these species were drawn according to the Sporne Index and the Mean Oxidation Value. The results showed several affinity with the phylogenetic trees based on molecular and genetic data. A couple of differences were also observed thus suggesting this other method as a potential mean for this kind of studies.