Composition of the essential oil and micromorphology of trichomes of Teucrium salviastrum, an endemic species from Portugal
Autor(a) principal: | |
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Data de Publicação: | 2002 |
Outros Autores: | , , , |
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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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 |
format |
article |
status_str |
publishedVersion |
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 |
language |
eng |
dc.relation.none.fl_str_mv |
Flavour and Fragrance Journal. 17:4 (2002) 287-291 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799133750624256000 |