Chemical composition of cuticular waxes and pigments and morphology of leaves of Quercus suber trees of different provenance
Autor(a) principal: | |
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Data de Publicação: | 2020 |
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/10400.5/20396 |
Resumo: | The chemical composition of cuticular waxes and pigments and the morphological features of cork oak (Quercus suber) leaves were determined for six samples with seeds of di erent geographical origins covering the natural distribution of the species. The leaves of all samples exhibited a hard texture and oval shape with a dark green colour on the hairless adaxial surface, while the abaxial surface was lighter, with numerous stomata and densely covered with trichomes in the form of stellate multicellular hairs. The results suggest an adaptive role of leaf features among samples of di erent provenance and the potential role of such variability in dealing with varying temperatures and rainfall regimes through local adaptation and phenotypic plasticity, as was seen in the trial site, since no significant di erences in leaf traits among the various specimens were found, for example, specific leaf area 55.6–67.8 cm2/g, leaf size 4.6–6.8 cm2 and photosynthetic pigment (total chlorophyll, 31.8–40.4 ug/cm2). The leaves showed a substantial cuticular wax layer (154.3–235.1 ug/cm2) composed predominantly of triterpenes and aliphatic compounds (61–72% and 17–23% of the identified compounds, respectively) that contributed to forming a nearly impermeable membrane that helps the plant cope with drought conditions. These characteristics are related to the species and did not differ among trees of different seed origin. The major identified compound was lupeol, indicating that cork oak leaves may be considered as a potential source of this bioactive compound |
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Chemical composition of cuticular waxes and pigments and morphology of leaves of Quercus suber trees of different provenancecork oakchlorophyllterpeneslupeolcuticular permeanceThe chemical composition of cuticular waxes and pigments and the morphological features of cork oak (Quercus suber) leaves were determined for six samples with seeds of di erent geographical origins covering the natural distribution of the species. The leaves of all samples exhibited a hard texture and oval shape with a dark green colour on the hairless adaxial surface, while the abaxial surface was lighter, with numerous stomata and densely covered with trichomes in the form of stellate multicellular hairs. The results suggest an adaptive role of leaf features among samples of di erent provenance and the potential role of such variability in dealing with varying temperatures and rainfall regimes through local adaptation and phenotypic plasticity, as was seen in the trial site, since no significant di erences in leaf traits among the various specimens were found, for example, specific leaf area 55.6–67.8 cm2/g, leaf size 4.6–6.8 cm2 and photosynthetic pigment (total chlorophyll, 31.8–40.4 ug/cm2). The leaves showed a substantial cuticular wax layer (154.3–235.1 ug/cm2) composed predominantly of triterpenes and aliphatic compounds (61–72% and 17–23% of the identified compounds, respectively) that contributed to forming a nearly impermeable membrane that helps the plant cope with drought conditions. These characteristics are related to the species and did not differ among trees of different seed origin. The major identified compound was lupeol, indicating that cork oak leaves may be considered as a potential source of this bioactive compoundMDPIRepositório da Universidade de LisboaSimões, RitaRodrigues, AnaFerreira-Dias, SuzanaMiranda, IsabelPereira, Helena2020-09-24T14:27:08Z20202020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/20396engPlants 2020, 9, 116510.3390/plants9091165info: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:RCAAP2023-03-06T14:49:50Zoai:www.repository.utl.pt:10400.5/20396Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:05:09.452339Repositório 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 |
Chemical composition of cuticular waxes and pigments and morphology of leaves of Quercus suber trees of different provenance |
title |
Chemical composition of cuticular waxes and pigments and morphology of leaves of Quercus suber trees of different provenance |
spellingShingle |
Chemical composition of cuticular waxes and pigments and morphology of leaves of Quercus suber trees of different provenance Simões, Rita cork oak chlorophyll terpenes lupeol cuticular permeance |
title_short |
Chemical composition of cuticular waxes and pigments and morphology of leaves of Quercus suber trees of different provenance |
title_full |
Chemical composition of cuticular waxes and pigments and morphology of leaves of Quercus suber trees of different provenance |
title_fullStr |
Chemical composition of cuticular waxes and pigments and morphology of leaves of Quercus suber trees of different provenance |
title_full_unstemmed |
Chemical composition of cuticular waxes and pigments and morphology of leaves of Quercus suber trees of different provenance |
title_sort |
Chemical composition of cuticular waxes and pigments and morphology of leaves of Quercus suber trees of different provenance |
author |
Simões, Rita |
author_facet |
Simões, Rita Rodrigues, Ana Ferreira-Dias, Suzana Miranda, Isabel Pereira, Helena |
author_role |
author |
author2 |
Rodrigues, Ana Ferreira-Dias, Suzana Miranda, Isabel Pereira, Helena |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Simões, Rita Rodrigues, Ana Ferreira-Dias, Suzana Miranda, Isabel Pereira, Helena |
dc.subject.por.fl_str_mv |
cork oak chlorophyll terpenes lupeol cuticular permeance |
topic |
cork oak chlorophyll terpenes lupeol cuticular permeance |
description |
The chemical composition of cuticular waxes and pigments and the morphological features of cork oak (Quercus suber) leaves were determined for six samples with seeds of di erent geographical origins covering the natural distribution of the species. The leaves of all samples exhibited a hard texture and oval shape with a dark green colour on the hairless adaxial surface, while the abaxial surface was lighter, with numerous stomata and densely covered with trichomes in the form of stellate multicellular hairs. The results suggest an adaptive role of leaf features among samples of di erent provenance and the potential role of such variability in dealing with varying temperatures and rainfall regimes through local adaptation and phenotypic plasticity, as was seen in the trial site, since no significant di erences in leaf traits among the various specimens were found, for example, specific leaf area 55.6–67.8 cm2/g, leaf size 4.6–6.8 cm2 and photosynthetic pigment (total chlorophyll, 31.8–40.4 ug/cm2). The leaves showed a substantial cuticular wax layer (154.3–235.1 ug/cm2) composed predominantly of triterpenes and aliphatic compounds (61–72% and 17–23% of the identified compounds, respectively) that contributed to forming a nearly impermeable membrane that helps the plant cope with drought conditions. These characteristics are related to the species and did not differ among trees of different seed origin. The major identified compound was lupeol, indicating that cork oak leaves may be considered as a potential source of this bioactive compound |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-09-24T14:27:08Z 2020 2020-01-01T00:00:00Z |
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/10400.5/20396 |
url |
http://hdl.handle.net/10400.5/20396 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Plants 2020, 9, 1165 10.3390/plants9091165 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
MDPI |
publisher.none.fl_str_mv |
MDPI |
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 |
instname_str |
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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1799131143966031872 |