Composition of the essential oil and micromorphology of trichomes of Teucrium salviastrum, an endemic species from Portugal

Detalhes bibliográficos
Autor(a) principal: Cavaleiro, Carlos
Data de Publicação: 2002
Outros Autores: Salgueiro, Lígia R., Antunes, Teresa, Sevinate-Pinto, Isabel, Barroso, José G.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10316/8383
https://doi.org/10.1002/ffj.1068
Resumo: The morphology, distribution and release mechanism of the glandular trichomes of Teucrium salviastrum Schreber were studied, along with the chemical composition of the essential oils. Peltate and capitate trichomes are present on both vegetative and reproductive organs. In this study, particular emphasis is given to the capitate trichomes with long multicellular stalks. These trichomes are very abundant, and the secretion material is released by cuticule rupture on the top of the head cells. Also noteworthy is the presence of peltate trichomes on the upper surface of the ovary. Although already described in some Lamiaceae, these trichomes have not been recorded previously on any other Teucrium species. The composition of the essential oil was studied using mainly GC and GC-MS. The oils isolated from leaves, collected during the flowering and post-flowering phases of the plant, as well as the oil isolated from the flower heads, exhibited a similar chemical composition. Nevertheless, the oils showed remarkable differences in composition when compared to those reported in the literature for the same species. The present study has shown that our oil consisted mainly of E-beta-farnesene (26.1-29.3%), E-caryophyllene (19.1-24.1%) and germacrene D (13.7-21.6%). The major compound of our samples, E-beta-farnesene, is reported for the first time for this species. Copyright © 2002 John Wiley & Sons, Ltd.
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spelling Composition of the essential oil and micromorphology of trichomes of Teucrium salviastrum, an endemic species from PortugalThe morphology, distribution and release mechanism of the glandular trichomes of Teucrium salviastrum Schreber were studied, along with the chemical composition of the essential oils. Peltate and capitate trichomes are present on both vegetative and reproductive organs. In this study, particular emphasis is given to the capitate trichomes with long multicellular stalks. These trichomes are very abundant, and the secretion material is released by cuticule rupture on the top of the head cells. Also noteworthy is the presence of peltate trichomes on the upper surface of the ovary. Although already described in some Lamiaceae, these trichomes have not been recorded previously on any other Teucrium species. The composition of the essential oil was studied using mainly GC and GC-MS. The oils isolated from leaves, collected during the flowering and post-flowering phases of the plant, as well as the oil isolated from the flower heads, exhibited a similar chemical composition. Nevertheless, the oils showed remarkable differences in composition when compared to those reported in the literature for the same species. The present study has shown that our oil consisted mainly of E-beta-farnesene (26.1-29.3%), E-caryophyllene (19.1-24.1%) and germacrene D (13.7-21.6%). The major compound of our samples, E-beta-farnesene, is reported for the first time for this species. Copyright © 2002 John Wiley & Sons, Ltd.2002info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/8383http://hdl.handle.net/10316/8383https://doi.org/10.1002/ffj.1068engFlavour and Fragrance Journal. 17:4 (2002) 287-291Cavaleiro, CarlosSalgueiro, Lígia R.Antunes, TeresaSevinate-Pinto, IsabelBarroso, José G.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2021-10-21T08:12:16Zoai:estudogeral.uc.pt:10316/8383Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:47:20.903052Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Composition of the essential oil and micromorphology of trichomes of Teucrium salviastrum, an endemic species from Portugal
title Composition of the essential oil and micromorphology of trichomes of Teucrium salviastrum, an endemic species from Portugal
spellingShingle Composition of the essential oil and micromorphology of trichomes of Teucrium salviastrum, an endemic species from Portugal
Cavaleiro, Carlos
title_short Composition of the essential oil and micromorphology of trichomes of Teucrium salviastrum, an endemic species from Portugal
title_full Composition of the essential oil and micromorphology of trichomes of Teucrium salviastrum, an endemic species from Portugal
title_fullStr Composition of the essential oil and micromorphology of trichomes of Teucrium salviastrum, an endemic species from Portugal
title_full_unstemmed Composition of the essential oil and micromorphology of trichomes of Teucrium salviastrum, an endemic species from Portugal
title_sort Composition of the essential oil and micromorphology of trichomes of Teucrium salviastrum, an endemic species from Portugal
author Cavaleiro, Carlos
author_facet Cavaleiro, Carlos
Salgueiro, Lígia R.
Antunes, Teresa
Sevinate-Pinto, Isabel
Barroso, José G.
author_role author
author2 Salgueiro, Lígia R.
Antunes, Teresa
Sevinate-Pinto, Isabel
Barroso, José G.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Cavaleiro, Carlos
Salgueiro, Lígia R.
Antunes, Teresa
Sevinate-Pinto, Isabel
Barroso, José G.
description The morphology, distribution and release mechanism of the glandular trichomes of Teucrium salviastrum Schreber were studied, along with the chemical composition of the essential oils. Peltate and capitate trichomes are present on both vegetative and reproductive organs. In this study, particular emphasis is given to the capitate trichomes with long multicellular stalks. These trichomes are very abundant, and the secretion material is released by cuticule rupture on the top of the head cells. Also noteworthy is the presence of peltate trichomes on the upper surface of the ovary. Although already described in some Lamiaceae, these trichomes have not been recorded previously on any other Teucrium species. The composition of the essential oil was studied using mainly GC and GC-MS. The oils isolated from leaves, collected during the flowering and post-flowering phases of the plant, as well as the oil isolated from the flower heads, exhibited a similar chemical composition. Nevertheless, the oils showed remarkable differences in composition when compared to those reported in the literature for the same species. The present study has shown that our oil consisted mainly of E-beta-farnesene (26.1-29.3%), E-caryophyllene (19.1-24.1%) and germacrene D (13.7-21.6%). The major compound of our samples, E-beta-farnesene, is reported for the first time for this species. Copyright © 2002 John Wiley & Sons, Ltd.
publishDate 2002
dc.date.none.fl_str_mv 2002
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10316/8383
http://hdl.handle.net/10316/8383
https://doi.org/10.1002/ffj.1068
url http://hdl.handle.net/10316/8383
https://doi.org/10.1002/ffj.1068
dc.language.iso.fl_str_mv eng
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dc.relation.none.fl_str_mv Flavour and Fragrance Journal. 17:4 (2002) 287-291
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