Structural aspects of germination control in pyrenes of Caryocar brasiliense (Caryocaraceae)

Detalhes bibliográficos
Autor(a) principal: Ângela Maria da Silva Sousa
Data de Publicação: 2017
Outros Autores: Paulo Sérgio Nascimento Lopes, Leonardo Monteiro Ribeiro, Monielly Soares Andrade, Maria Olívia Mercadante-Simões
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFMG
Texto Completo: http://hdl.handle.net/1843/41787
Resumo: CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
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spelling 2022-05-18T14:38:14Z2022-05-18T14:38:14Z20173188790210.1007/s00468-016-1514-21432-2285http://hdl.handle.net/1843/41787CNPq - Conselho Nacional de Desenvolvimento Científico e TecnológicoCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorCaryocar brasiliense is an arboreal species widely distributed in the highly seasonal Cerrado (neotropical savanna) biome. The oleaginous fruits of this species are important to the local fauna and as a source of income for traditional human populations. As the diaspores have peculiar structures and pronounced dormancy, we sought to examine the interactions between the morphoanatomy of the pyrene (the seed enveloped by the endocarp) and physiological aspects of germination. We describe here the morphology of the pyrene, the anatomy, histochemistry, and ultrastructure of the seed during the germination process, and evaluate the effect of gibberellic acid (GA3) on the germination of isolated seeds or those still contained within the endocarp. The hard and aculeate endocarp protects the embryo and retards water absorption—thereby controlling germination under natural conditions. The seed coat is thin, unlignified, and rich in phenolic compounds. The embryo is hypocotyledonary, has differentiated vascular bundles, and abundant proteic and lipidc reserves. The physiological dormancy of this species is related to the low growth potential of its embryo and mechanical restraints imposed by the endocarp. Germination is associated with hypocotyl growth through cell expansion (stimulated by GA3)—which promotes the cracking of the endocarp, and thus allows radicle and plumule protrusion. The anatomical characteristics and physiological dormancy of C. brasiliense pyrenes restrict germination to the most propitious occasions and favor the establishment of seedlings in Cerrado environments.engUniversidade Federal de Minas GeraisUFMGBrasilICA - INSTITUTO DE CIÊNCIAS AGRÁRIASTrees Structure and FunctionPequiPlantas oleaginosasSementes - DormênciaGerminaçãoMorfologia vegetalStructural aspects of germination control in pyrenes of Caryocar brasiliense (Caryocaraceae)info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://link.springer.com/article/10.1007/s00468-016-1514-2Ângela Maria da Silva SousaPaulo Sérgio Nascimento LopesLeonardo Monteiro RibeiroMonielly Soares AndradeMaria Olívia Mercadante-Simõesinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFMGinstname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMGLICENSELicense.txtLicense.txttext/plain; charset=utf-82042https://repositorio.ufmg.br/bitstream/1843/41787/1/License.txtfa505098d172de0bc8864fc1287ffe22MD51ORIGINALStructural aspects of germination control in pyrenes of Caryocar brasiliense (Caryocaraceae).pdfStructural aspects of germination control in pyrenes of Caryocar brasiliense (Caryocaraceae).pdfapplication/pdf4333752https://repositorio.ufmg.br/bitstream/1843/41787/2/Structural%20aspects%20of%20germination%20control%20in%20pyrenes%20of%20Caryocar%20brasiliense%20%28Caryocaraceae%29.pdfe9e8af76b92a34ef04312e7421d0b6bcMD521843/417872022-05-18 11:38:14.748oai:repositorio.ufmg.br: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Repositório de PublicaçõesPUBhttps://repositorio.ufmg.br/oaiopendoar:2022-05-18T14:38:14Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)false
dc.title.pt_BR.fl_str_mv Structural aspects of germination control in pyrenes of Caryocar brasiliense (Caryocaraceae)
title Structural aspects of germination control in pyrenes of Caryocar brasiliense (Caryocaraceae)
spellingShingle Structural aspects of germination control in pyrenes of Caryocar brasiliense (Caryocaraceae)
Ângela Maria da Silva Sousa
Pequi
Plantas oleaginosas
Sementes - Dormência
Germinação
Morfologia vegetal
title_short Structural aspects of germination control in pyrenes of Caryocar brasiliense (Caryocaraceae)
title_full Structural aspects of germination control in pyrenes of Caryocar brasiliense (Caryocaraceae)
title_fullStr Structural aspects of germination control in pyrenes of Caryocar brasiliense (Caryocaraceae)
title_full_unstemmed Structural aspects of germination control in pyrenes of Caryocar brasiliense (Caryocaraceae)
title_sort Structural aspects of germination control in pyrenes of Caryocar brasiliense (Caryocaraceae)
author Ângela Maria da Silva Sousa
author_facet Ângela Maria da Silva Sousa
Paulo Sérgio Nascimento Lopes
Leonardo Monteiro Ribeiro
Monielly Soares Andrade
Maria Olívia Mercadante-Simões
author_role author
author2 Paulo Sérgio Nascimento Lopes
Leonardo Monteiro Ribeiro
Monielly Soares Andrade
Maria Olívia Mercadante-Simões
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Ângela Maria da Silva Sousa
Paulo Sérgio Nascimento Lopes
Leonardo Monteiro Ribeiro
Monielly Soares Andrade
Maria Olívia Mercadante-Simões
dc.subject.other.pt_BR.fl_str_mv Pequi
Plantas oleaginosas
Sementes - Dormência
Germinação
Morfologia vegetal
topic Pequi
Plantas oleaginosas
Sementes - Dormência
Germinação
Morfologia vegetal
description CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
publishDate 2017
dc.date.issued.fl_str_mv 2017
dc.date.accessioned.fl_str_mv 2022-05-18T14:38:14Z
dc.date.available.fl_str_mv 2022-05-18T14:38:14Z
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/1843/41787
dc.identifier.doi.pt_BR.fl_str_mv 10.1007/s00468-016-1514-2
dc.identifier.issn.pt_BR.fl_str_mv 1432-2285
identifier_str_mv 10.1007/s00468-016-1514-2
1432-2285
url http://hdl.handle.net/1843/41787
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Trees Structure and Function
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Universidade Federal de Minas Gerais
dc.publisher.initials.fl_str_mv UFMG
dc.publisher.country.fl_str_mv Brasil
dc.publisher.department.fl_str_mv ICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS
publisher.none.fl_str_mv Universidade Federal de Minas Gerais
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFMG
instname:Universidade Federal de Minas Gerais (UFMG)
instacron:UFMG
instname_str Universidade Federal de Minas Gerais (UFMG)
instacron_str UFMG
institution UFMG
reponame_str Repositório Institucional da UFMG
collection Repositório Institucional da UFMG
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