Chemical composition of cuticular waxes and pigments and morphology of leaves of Quercus suber trees of different provenance

Detalhes bibliográficos
Autor(a) principal: Simões, Rita
Data de Publicação: 2020
Outros Autores: Rodrigues, Ana, Ferreira-Dias, Suzana, Miranda, Isabel, Pereira, Helena
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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spelling 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
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