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Flavonoids in phylloclades discriminate endemic Semele androgyna chemotypes from Madeira

2005Journal article Open access
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dc.contributor.authorGanança, F. T.
dc.contributor.authorCharpentier, J. P.
dc.contributor.authorCarvalho, M. Â. A. Pinheiro de
dc.contributor.authorThangadurai, D.
dc.contributor.authorJoseph, C.
dc.contributor.authorFranco, E.
dc.contributor.authorSousa, N.
dc.contributor.authorWilcock, C.C.
dc.contributor.authorJay-Allemand, C.
dc.contributor.authorSantos, T. M. M. dos
dc.date.accessioned2021-03-18T15:49:08Z
dc.date.available2021-03-18T15:49:08Z
dc.date.issued2005
dc.description.abstractThirty-five randomly-collected Semele androgyna Kunth samples were screened by RP-HPLC for their phenolic composition. Fraction analysis allowed the detection of 17 different compounds. According to their retention times and UV spectra obtained by diode array analysis, these phenolics represent three classes: phenolic acids, flavones and flavonols. Co-chromatography with specific standards enabled identification of quercetin, rutin and quercitrin in Semele tissues for the first time. Polymorphism based on phenolic composition was evaluated using multivariate analysis and showed four distinct S. androgyna clusters. This polymorphism was not associated with morphological diversity or different in ambient light intensities. Biochemical differentiation is thus present in this species. The application of multivariate analysis techniques to RP-HPLC data has allowed the classification of samples into two groups, previously proposed on the basis of morphological and cytotaxonomical information. Therefore, the use of phenolics as chemotaxonomic markers in Semele is highly recommended because of its diagnostic value, even at a subspecies level. Discriminant canonical analysis and Mahalanobis distances confirmed these clusters as recognisable chemosystematic units. However, these units do not support the separation of S. pterygophora.pt_PT
dc.description.sponsorshipThe Portuguese Foundation for Science and Technology (FCT) funded this work through the Centre of Macaronesian Studies (CEM). The authors are grateful to the Madeiran Centre of Science and Technology (CITMA), the Berardo Foundation and European Social Funding for financial assistance given during execution of this work. The assistance rendered by Mr Rogério Correia during field collection is gratefully acknowledged.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationGanança, F. T., Charpentier, J. P., Carvalho, M. P., Thangadurai, D., Joseph, C., Franco, E., ... & Santos, T. M. M. (2005). Flavonoids in phylloclades discriminate endemic Semele androgyna chemotypes from Madeira. South African Journal of Botany, 71(2), 160-166.https://doi.org/10.1016/S0254-6299(15)30128-9pt_PT
dc.identifier.doi10.1016/S0254-6299(15)30128-9pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/3183
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSouth African Association of Botanistspt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectSemele androgynapt_PT
dc.subjectFlavonoids in phyllocladespt_PT
dc.subjectMadeira (Portugal)pt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências da Vidapt_PT
dc.titleFlavonoids in phylloclades discriminate endemic Semele androgyna chemotypes from Madeirapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage166pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage160pt_PT
oaire.citation.titleSouth African Journal of Botanypt_PT
oaire.citation.volume71pt_PT
person.familyNameGanança
person.familyNameAlmeida Pinheiro de Carvalho
person.givenNameJosé Filipe
person.givenNameMiguel Angelo
person.identifier1218558
person.identifier.ciencia-id4610-6741-6816
person.identifier.orcid0000-0002-8384-6188
person.identifier.orcid0000-0002-5084-870X
person.identifier.ridAEE-0913-2022
person.identifier.scopus-author-id8758577600
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationd5a8bb82-d9e9-4b7d-8852-e65a5931b17d
relation.isAuthorOfPublication2e433c48-88f8-40a2-b21f-de78b44aab1c
relation.isAuthorOfPublication.latestForDiscovery2e433c48-88f8-40a2-b21f-de78b44aab1c

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