Spatial distribution of structural elements in leaves of Ilex paraguariensis: physiological and ecological implications
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s00468-019-01900-y http://hdl.handle.net/11449/187988 |
Resumo: | Key message: Calcium accumulation in crystals (mainly in the midrib) and silicon on the external surface of the upper epidermis suggests physiological and/or ecological roles. Abstract: Concentration, form, and location of elements in leaf tissue of Ilex paraguariensis A. St.-Hil. can influence remobilization patterns and release of substances during its infusion for making yerba mate beverages. Even though, spatial distribution of elements and characterization of crystal formation in I. paraguariensis has not been elucidated. For filling this gap, this study used microanalytical techniques to evaluate accumulation and spatial distribution of elements in yerba mate leaves, which was done using chemical analyses and scanning electron microscopy combined with energy-dispersive spectroscopy (SEM–EDS). Chemical analyses confirmed high concentrations of potassium (K) and manganese (Mn) in leaves. Cell walls were predominantly composed of carbon (C) and oxygen (O). Compartmentalization of silicon (Si) occurred on the external surface of the upper epidermis between cell walls and the leaf cuticle. Precipitation of calcium (Ca) was higher in the midrib than in the leaf blade with the mesophyll and palisade mesophyll being the main accumulation sites. Microscopy–spectroscopy analysis revealed different patterns of elemental accumulation in leaves, which suggests physiological and/or ecological roles in yerba mate plants. Additionally, the abundance of Ca oxalates could explain the low Ca solubility during the beverage infusion process. |
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Spatial distribution of structural elements in leaves of Ilex paraguariensis: physiological and ecological implicationsAmorphous silicaCalcium regulationElemental accumulationHerbal teaSouth American floraX-ray microanalysisKey message: Calcium accumulation in crystals (mainly in the midrib) and silicon on the external surface of the upper epidermis suggests physiological and/or ecological roles. Abstract: Concentration, form, and location of elements in leaf tissue of Ilex paraguariensis A. St.-Hil. can influence remobilization patterns and release of substances during its infusion for making yerba mate beverages. Even though, spatial distribution of elements and characterization of crystal formation in I. paraguariensis has not been elucidated. For filling this gap, this study used microanalytical techniques to evaluate accumulation and spatial distribution of elements in yerba mate leaves, which was done using chemical analyses and scanning electron microscopy combined with energy-dispersive spectroscopy (SEM–EDS). Chemical analyses confirmed high concentrations of potassium (K) and manganese (Mn) in leaves. Cell walls were predominantly composed of carbon (C) and oxygen (O). Compartmentalization of silicon (Si) occurred on the external surface of the upper epidermis between cell walls and the leaf cuticle. Precipitation of calcium (Ca) was higher in the midrib than in the leaf blade with the mesophyll and palisade mesophyll being the main accumulation sites. Microscopy–spectroscopy analysis revealed different patterns of elemental accumulation in leaves, which suggests physiological and/or ecological roles in yerba mate plants. Additionally, the abundance of Ca oxalates could explain the low Ca solubility during the beverage infusion process.Department of Agronomy Ingá University Center (Uningá), Highway PR 317, 6114-Industrial Park 200Department of Soils and Agricultural Engineering Federal University of Paraná (UFPR)Biosystems Engineering São Paulo State University (UNESP)University of Brasília PPGCA/FUPNational Soil Dynamics Laboratory United States Department of Agriculture-Agricultural Research ServiceBiosystems Engineering São Paulo State University (UNESP)Ingá University Center (Uningá)Universidade Federal do Paraná (UFPR)Universidade Estadual Paulista (Unesp)PPGCA/FUPUnited States Department of Agriculture-Agricultural Research ServiceBarbosa, Julierme ZimmerMotta, Antonio Carlos Vargasdos Reis, André Rodrigues [UNESP]Corrêa, Rodrigo StudartPrior, Stephen A.2019-10-06T15:53:28Z2019-10-06T15:53:28Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1007/s00468-019-01900-yTrees - Structure and Function.0931-1890http://hdl.handle.net/11449/18798810.1007/s00468-019-01900-y2-s2.0-85070985440Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengTrees - Structure and Functioninfo:eu-repo/semantics/openAccess2021-10-22T21:10:10Zoai:repositorio.unesp.br:11449/187988Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T13:58:00.327352Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Spatial distribution of structural elements in leaves of Ilex paraguariensis: physiological and ecological implications |
title |
Spatial distribution of structural elements in leaves of Ilex paraguariensis: physiological and ecological implications |
spellingShingle |
Spatial distribution of structural elements in leaves of Ilex paraguariensis: physiological and ecological implications Barbosa, Julierme Zimmer Amorphous silica Calcium regulation Elemental accumulation Herbal tea South American flora X-ray microanalysis |
title_short |
Spatial distribution of structural elements in leaves of Ilex paraguariensis: physiological and ecological implications |
title_full |
Spatial distribution of structural elements in leaves of Ilex paraguariensis: physiological and ecological implications |
title_fullStr |
Spatial distribution of structural elements in leaves of Ilex paraguariensis: physiological and ecological implications |
title_full_unstemmed |
Spatial distribution of structural elements in leaves of Ilex paraguariensis: physiological and ecological implications |
title_sort |
Spatial distribution of structural elements in leaves of Ilex paraguariensis: physiological and ecological implications |
author |
Barbosa, Julierme Zimmer |
author_facet |
Barbosa, Julierme Zimmer Motta, Antonio Carlos Vargas dos Reis, André Rodrigues [UNESP] Corrêa, Rodrigo Studart Prior, Stephen A. |
author_role |
author |
author2 |
Motta, Antonio Carlos Vargas dos Reis, André Rodrigues [UNESP] Corrêa, Rodrigo Studart Prior, Stephen A. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Ingá University Center (Uningá) Universidade Federal do Paraná (UFPR) Universidade Estadual Paulista (Unesp) PPGCA/FUP United States Department of Agriculture-Agricultural Research Service |
dc.contributor.author.fl_str_mv |
Barbosa, Julierme Zimmer Motta, Antonio Carlos Vargas dos Reis, André Rodrigues [UNESP] Corrêa, Rodrigo Studart Prior, Stephen A. |
dc.subject.por.fl_str_mv |
Amorphous silica Calcium regulation Elemental accumulation Herbal tea South American flora X-ray microanalysis |
topic |
Amorphous silica Calcium regulation Elemental accumulation Herbal tea South American flora X-ray microanalysis |
description |
Key message: Calcium accumulation in crystals (mainly in the midrib) and silicon on the external surface of the upper epidermis suggests physiological and/or ecological roles. Abstract: Concentration, form, and location of elements in leaf tissue of Ilex paraguariensis A. St.-Hil. can influence remobilization patterns and release of substances during its infusion for making yerba mate beverages. Even though, spatial distribution of elements and characterization of crystal formation in I. paraguariensis has not been elucidated. For filling this gap, this study used microanalytical techniques to evaluate accumulation and spatial distribution of elements in yerba mate leaves, which was done using chemical analyses and scanning electron microscopy combined with energy-dispersive spectroscopy (SEM–EDS). Chemical analyses confirmed high concentrations of potassium (K) and manganese (Mn) in leaves. Cell walls were predominantly composed of carbon (C) and oxygen (O). Compartmentalization of silicon (Si) occurred on the external surface of the upper epidermis between cell walls and the leaf cuticle. Precipitation of calcium (Ca) was higher in the midrib than in the leaf blade with the mesophyll and palisade mesophyll being the main accumulation sites. Microscopy–spectroscopy analysis revealed different patterns of elemental accumulation in leaves, which suggests physiological and/or ecological roles in yerba mate plants. Additionally, the abundance of Ca oxalates could explain the low Ca solubility during the beverage infusion process. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-06T15:53:28Z 2019-10-06T15:53:28Z 2019-01-01 |
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://dx.doi.org/10.1007/s00468-019-01900-y Trees - Structure and Function. 0931-1890 http://hdl.handle.net/11449/187988 10.1007/s00468-019-01900-y 2-s2.0-85070985440 |
url |
http://dx.doi.org/10.1007/s00468-019-01900-y http://hdl.handle.net/11449/187988 |
identifier_str_mv |
Trees - Structure and Function. 0931-1890 10.1007/s00468-019-01900-y 2-s2.0-85070985440 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Trees - Structure and Function |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128296550924288 |