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Chemotaxonomic markers in essential oils of Hypenia (Mart. ex Benth.) R. Harley

Central Brazilian Cerrado is regarded as the center of origin and dispersion of Hypenia (Lamiaceae: subtribe Hyptidineae) in South America. The genus has either remained undivided or been divided into two or seven taxonomic sections, based almost exclusively on a limited range of floral features. In...

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Main Authors: Faria, Maria T., Costa, Deomar P., Vilela, Eliane C., Ribeiro, Dalva G., Ferreira, Heleno D., Santos, Suzana C., Seraphin, José C., Ferri, Pedro H.
Format: Artigo
Language: English
Published: Sociedade Brasileira de Química 2017
Subjects:
Hypenia
essential oil
chemical variability
chemotaxonomy
multivariate analysis
Online Access: http://repositorio.unb.br/handle/10482/28439
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spelling ir-10482-284392019-03-28T14:02:56Z Chemotaxonomic markers in essential oils of Hypenia (Mart. ex Benth.) R. Harley Faria, Maria T. Costa, Deomar P. Vilela, Eliane C. Ribeiro, Dalva G. Ferreira, Heleno D. Santos, Suzana C. Seraphin, José C. Ferri, Pedro H. Hypenia essential oil chemical variability chemotaxonomy multivariate analysis Central Brazilian Cerrado is regarded as the center of origin and dispersion of Hypenia (Lamiaceae: subtribe Hyptidineae) in South America. The genus has either remained undivided or been divided into two or seven taxonomic sections, based almost exclusively on a limited range of floral features. Interspecific chemical delimitation to complement analyses of botanical traits is described. Multivariate analysis of essential oils of ten species in the vegetative stage supports the taxonomic division in two sections. Cluster I included four species belonging to section Laxiflorae in addition to H. irregularis, which were characterized by the highest percentages of spathulenol and caryophyllene oxide. Cluster II contained five species belonging to section Densiflorae with α-cadinol, α-muurolene and a-muurolol as major constituents. Cadinanes and germacranes/ aromadendranes seem to be chemotaxonomic markers of sections Densiflorae and Laxiflorae, respectively. Furthermore, redundancy analysis revealed no significant correlation between edaphic factors and oil chemovariations, suggesting that Hypenia oils consist of constitutive rather than induced compounds. O Cerrado Central brasileiro é considerado o centro de origem e dispersão de Hypenia (Lamiaceae: subtribo Hyptidineae) na América do Sul. O gênero tem sido mantido sem divisão, ou subdividido em duas ou cinco seções taxonômicas, baseadas quase exclusivamente a partir de um conjunto limitado de características florais. Neste trabalho, uma delimitação química interespecífica é descrita a fim de complementar as análises das características botânicas. Análise multivariada dos óleos essenciais de dez espécies na fase vegetativa suporta a divisão taxonômica do gênero em duas seções. Grupo I incluiu quatro espécies da seção Laxiflorae em adição à H. irregularis, os quais foram caracterizados pelos mais altos percentuais de espatulenol e óxido de cariofileno. Grupo II conteve cinco espécies da seção Densiflorae com α-cadinol, a-muuroleno e a-muurolol como constituintes principais. Cadinanos e germacranos/aromadendranos parecem ser as classes marcadoras quimiotaxonômicas nas seções Densiflorae e Laxiflorae, respectivamente.Além disso, análise de redundância canônica não indicou correlação significante entre fatores edáficos com quimiovariação nos óleos essenciais, sugerindo que em Hypenia os óleos são constituídos por substâncias constitutivas e não induzidas pelo ambiente. 2017-12-07T04:59:38Z 2017-12-07T04:59:38Z 2012 Artigo J. Braz. Chem. Soc.,v.23,n.10,p.1844-1852,2012 0103-5053 http://repositorio.unb.br/handle/10482/28439 10.1590/S0103-50532012005000056 en Acesso Aberto application/pdf Sociedade Brasileira de Química http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532012001000012&lng=en&nrm=iso http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0103-50532012001000012&lng=en&nrm=iso http://www.scielo.br/scielo.php?script=sci_pdf&pid=S0103-50532012001000012&lng=en&nrm=iso
institution REPOSITORIO UNB
collection REPOSITORIO UNB
language English
topic Hypenia
essential oil
chemical variability
chemotaxonomy
multivariate analysis
spellingShingle Hypenia
essential oil
chemical variability
chemotaxonomy
multivariate analysis
Faria, Maria T.
Costa, Deomar P.
Vilela, Eliane C.
Ribeiro, Dalva G.
Ferreira, Heleno D.
Santos, Suzana C.
Seraphin, José C.
Ferri, Pedro H.
Chemotaxonomic markers in essential oils of Hypenia (Mart. ex Benth.) R. Harley
description Central Brazilian Cerrado is regarded as the center of origin and dispersion of Hypenia (Lamiaceae: subtribe Hyptidineae) in South America. The genus has either remained undivided or been divided into two or seven taxonomic sections, based almost exclusively on a limited range of floral features. Interspecific chemical delimitation to complement analyses of botanical traits is described. Multivariate analysis of essential oils of ten species in the vegetative stage supports the taxonomic division in two sections. Cluster I included four species belonging to section Laxiflorae in addition to H. irregularis, which were characterized by the highest percentages of spathulenol and caryophyllene oxide. Cluster II contained five species belonging to section Densiflorae with α-cadinol, α-muurolene and a-muurolol as major constituents. Cadinanes and germacranes/ aromadendranes seem to be chemotaxonomic markers of sections Densiflorae and Laxiflorae, respectively. Furthermore, redundancy analysis revealed no significant correlation between edaphic factors and oil chemovariations, suggesting that Hypenia oils consist of constitutive rather than induced compounds.
format Artigo
author Faria, Maria T.
Costa, Deomar P.
Vilela, Eliane C.
Ribeiro, Dalva G.
Ferreira, Heleno D.
Santos, Suzana C.
Seraphin, José C.
Ferri, Pedro H.
author_sort Faria, Maria T.
title Chemotaxonomic markers in essential oils of Hypenia (Mart. ex Benth.) R. Harley
title_short Chemotaxonomic markers in essential oils of Hypenia (Mart. ex Benth.) R. Harley
title_full Chemotaxonomic markers in essential oils of Hypenia (Mart. ex Benth.) R. Harley
title_fullStr Chemotaxonomic markers in essential oils of Hypenia (Mart. ex Benth.) R. Harley
title_full_unstemmed Chemotaxonomic markers in essential oils of Hypenia (Mart. ex Benth.) R. Harley
title_sort chemotaxonomic markers in essential oils of hypenia (mart. ex benth.) r. harley
publisher Sociedade Brasileira de Química
publishDate 2017
url http://repositorio.unb.br/handle/10482/28439
_version_ 1641988912263987200
score 13.657419

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