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Chemotaxonomic importance of sesquiterpenes and flavonoids in five argentinian species of polygonum genus / M. Derita in The journal of essential oil research, Vol. 23 N° 5 (Septembre/Octobre 2011) 

Public ISBD [article]  in The journal of essential oil research > Vol. 23 N° 5 (Septembre/Octobre 2011) . - pp. 11-14 Titre : Chemotaxonomic importance of sesquiterpenes and flavonoids in five argentinian species of polygonum genus Type de document : texte imprimé Auteurs : M. Derita, Auteur ; S. Zacchino, Auteur Année de publication : 2012 Article en page(s) : pp. 11-14 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Polygonum  genus  Persicaria  section  Sesquiterpenes  Flavonoids  Chemotaxonomic  importance Index. décimale : 646 Résumé : Leaves of five species of Polygonum genus belonging to Persicaria section were collected from the northeast and central lowlands of Argentina and their dichloromethane extracts were analyzed by GC/EM. They were investigated for the presence of four drimane-type sesquiterpenes: polygodial (1), isopolygodial (2), drimenol (3) and confertifolin (4), previously isolated from P. acuminatum; and the presence of three flavonoids: pinostrobin (5), flavokawin B (6) and cardamonin (7), previously isolated from P. persicaria. Results showed that among the five species of Persicaria section studied, two species contained sesquiterpenes 1–4 but not flavonoids 5–7, other two species contained flavonoids 5–7 but not sesquiterpenes 1–4, and only one species contained compounds 1–7. These results add evidences to a previous proposal to sub-classify the Persicaria section of Polygonum genus from a chemotaxonomic point of view. [Editor's note: This paper's References are notated within the main body of the text in superscript, so as to avoid reader confusion with the discussed sesquiterpenes and flavonoids.] DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700474 [article] Chemotaxonomic importance of sesquiterpenes and flavonoids in five argentinian species of polygonum genus [texte imprimé] / M. Derita, Auteur ; S. Zacchino, Auteur . - 2012 . - pp. 11-14. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 23 N° 5 (Septembre/Octobre 2011) . - pp. 11-14 Mots-clés : Polygonum  genus  Persicaria  section  Sesquiterpenes  Flavonoids  Chemotaxonomic  importance Index. décimale : 646 Résumé : Leaves of five species of Polygonum genus belonging to Persicaria section were collected from the northeast and central lowlands of Argentina and their dichloromethane extracts were analyzed by GC/EM. They were investigated for the presence of four drimane-type sesquiterpenes: polygodial (1), isopolygodial (2), drimenol (3) and confertifolin (4), previously isolated from P. acuminatum; and the presence of three flavonoids: pinostrobin (5), flavokawin B (6) and cardamonin (7), previously isolated from P. persicaria. Results showed that among the five species of Persicaria section studied, two species contained sesquiterpenes 1–4 but not flavonoids 5–7, other two species contained flavonoids 5–7 but not sesquiterpenes 1–4, and only one species contained compounds 1–7. These results add evidences to a previous proposal to sub-classify the Persicaria section of Polygonum genus from a chemotaxonomic point of view. [Editor's note: This paper's References are notated within the main body of the text in superscript, so as to avoid reader confusion with the discussed sesquiterpenes and flavonoids.] DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700474