Anatomical and Physicochemical Characterization of the Araucaria angustifolia Seed Coat

Detalhes bibliográficos
Autor(a) principal: Sampaio,Danielle Affonso
Data de Publicação: 2019
Outros Autores: Garcia,Rosilei Aparecida, Lima,Helena Regina Pinto
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Floresta e Ambiente
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872019000200148
Resumo: ABSTRACT Seed coat plays an important role in the embryo protection and seed germination. This study aimed to characterize the anatomical structure, histochemical and physicochemical aspects of the seed coat of Araucaria angustifolia Kuntze. Light and scanning microscopy usual procedures, and histochemical tests were used to describe and characterize seed layers, as well as to determine their extractive contents. Functional groups of the integument coat layers were observed by Fourier transformed infrared spectroscopy. Color analyses were performed in CIE 1976 L*a*b* color space. Wettability of the layers was evaluated by contact angle analysis. The anatomical and chemical features observed in the seed layers include the rucose cuticle and the presence of many layers of sclerenchyma in the mesotesta; and the chromaticity due to extractive content and phenolic compounds in the endotesta. The wettability varied among layers according to their structure. These features information contribute to a better understanding on the services provided by the Araucaria angustifolia seed coat.
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spelling Anatomical and Physicochemical Characterization of the Araucaria angustifolia Seed Coatpinhãocolorimetryconiferscontact angle analysisFT-IR spectroscopyABSTRACT Seed coat plays an important role in the embryo protection and seed germination. This study aimed to characterize the anatomical structure, histochemical and physicochemical aspects of the seed coat of Araucaria angustifolia Kuntze. Light and scanning microscopy usual procedures, and histochemical tests were used to describe and characterize seed layers, as well as to determine their extractive contents. Functional groups of the integument coat layers were observed by Fourier transformed infrared spectroscopy. Color analyses were performed in CIE 1976 L*a*b* color space. Wettability of the layers was evaluated by contact angle analysis. The anatomical and chemical features observed in the seed layers include the rucose cuticle and the presence of many layers of sclerenchyma in the mesotesta; and the chromaticity due to extractive content and phenolic compounds in the endotesta. The wettability varied among layers according to their structure. These features information contribute to a better understanding on the services provided by the Araucaria angustifolia seed coat.Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872019000200148Floresta e Ambiente v.26 n.2 2019reponame:Floresta e Ambienteinstname:Universidade Federal do Rio de Janeiro (UFRJ)instacron:UFRJ10.1590/2179-8087.086717info:eu-repo/semantics/openAccessSampaio,Danielle AffonsoGarcia,Rosilei AparecidaLima,Helena Regina Pintoeng2019-05-17T00:00:00Zoai:scielo:S2179-80872019000200148Revistahttps://www.floram.org/PUBhttps://old.scielo.br/oai/scielo-oai.phpfloramjournal@gmail.com||floram@ufrrj.br||2179-80871415-0980opendoar:2019-05-17T00:00Floresta e Ambiente - Universidade Federal do Rio de Janeiro (UFRJ)false
dc.title.none.fl_str_mv Anatomical and Physicochemical Characterization of the Araucaria angustifolia Seed Coat
title Anatomical and Physicochemical Characterization of the Araucaria angustifolia Seed Coat
spellingShingle Anatomical and Physicochemical Characterization of the Araucaria angustifolia Seed Coat
Sampaio,Danielle Affonso
pinhão
colorimetry
conifers
contact angle analysis
FT-IR spectroscopy
title_short Anatomical and Physicochemical Characterization of the Araucaria angustifolia Seed Coat
title_full Anatomical and Physicochemical Characterization of the Araucaria angustifolia Seed Coat
title_fullStr Anatomical and Physicochemical Characterization of the Araucaria angustifolia Seed Coat
title_full_unstemmed Anatomical and Physicochemical Characterization of the Araucaria angustifolia Seed Coat
title_sort Anatomical and Physicochemical Characterization of the Araucaria angustifolia Seed Coat
author Sampaio,Danielle Affonso
author_facet Sampaio,Danielle Affonso
Garcia,Rosilei Aparecida
Lima,Helena Regina Pinto
author_role author
author2 Garcia,Rosilei Aparecida
Lima,Helena Regina Pinto
author2_role author
author
dc.contributor.author.fl_str_mv Sampaio,Danielle Affonso
Garcia,Rosilei Aparecida
Lima,Helena Regina Pinto
dc.subject.por.fl_str_mv pinhão
colorimetry
conifers
contact angle analysis
FT-IR spectroscopy
topic pinhão
colorimetry
conifers
contact angle analysis
FT-IR spectroscopy
description ABSTRACT Seed coat plays an important role in the embryo protection and seed germination. This study aimed to characterize the anatomical structure, histochemical and physicochemical aspects of the seed coat of Araucaria angustifolia Kuntze. Light and scanning microscopy usual procedures, and histochemical tests were used to describe and characterize seed layers, as well as to determine their extractive contents. Functional groups of the integument coat layers were observed by Fourier transformed infrared spectroscopy. Color analyses were performed in CIE 1976 L*a*b* color space. Wettability of the layers was evaluated by contact angle analysis. The anatomical and chemical features observed in the seed layers include the rucose cuticle and the presence of many layers of sclerenchyma in the mesotesta; and the chromaticity due to extractive content and phenolic compounds in the endotesta. The wettability varied among layers according to their structure. These features information contribute to a better understanding on the services provided by the Araucaria angustifolia seed coat.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872019000200148
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872019000200148
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/2179-8087.086717
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro
publisher.none.fl_str_mv Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro
dc.source.none.fl_str_mv Floresta e Ambiente v.26 n.2 2019
reponame:Floresta e Ambiente
instname:Universidade Federal do Rio de Janeiro (UFRJ)
instacron:UFRJ
instname_str Universidade Federal do Rio de Janeiro (UFRJ)
instacron_str UFRJ
institution UFRJ
reponame_str Floresta e Ambiente
collection Floresta e Ambiente
repository.name.fl_str_mv Floresta e Ambiente - Universidade Federal do Rio de Janeiro (UFRJ)
repository.mail.fl_str_mv floramjournal@gmail.com||floram@ufrrj.br||
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