Changes in hormonal balance as key to reserve degradation after dormancy overcoming in Annona macroprophyllata and Annona purpurea seeds
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/0100-29452020664 http://hdl.handle.net/11449/208166 |
Resumo: | Studies on the effect of the applying of phytoregulators to overcome seed dormancy have been carried out in Annonaceae species, thus the endogenous relationship between abscisic acid and gibberellins after the application of phytoregulators needs to be known in these species. Considering the importance of hormonal balance in dormancy mechanisms, the aim of this research was to elucidate how endogenous ABA and GA concentrations change after the application of phytoregulators in seeds and how these changes affect reserve degradation during germination of Annona macroprophyllata and A. purpurea seeds. Seeds were submitted to three conditions:-no soaking, soaking-in-water and soaking-in-GA4+7 +benzyladenine. ABA, GA, lipids, proteins, and total soluble sugars were quantified at 0, 2, 5, 10, and 15 days after the beginning of treatments. The application of phytoregulators led change of the hormonal balance inducing increase in endogenous GA and reduction in ABA levels since seed soaking. During imbibition, the degradation of seed reserves (breaks proteins first, and then soluble sugars and finally lipids) was observed and complete germination was obtained after 10 days, with primary root emission. In both species, dormancy can be broken soon after seed dispersal when the balance between GA and ABA is endogenously changed (by exogenous application of phytoregulators), leading to metabolic reserve degradation and germination. |
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Changes in hormonal balance as key to reserve degradation after dormancy overcoming in Annona macroprophyllata and Annona purpurea seedsCâmbios no balanço hormonal como chave para degradação de reservas após a superação da dormência de sementes de Annona macroprophyllata e Annona purpureaAbscisic acidGerminationGibberellinsLipidsPhytoregulatorsPlant growth regulatorsProteinsSoluble sugarsStudies on the effect of the applying of phytoregulators to overcome seed dormancy have been carried out in Annonaceae species, thus the endogenous relationship between abscisic acid and gibberellins after the application of phytoregulators needs to be known in these species. Considering the importance of hormonal balance in dormancy mechanisms, the aim of this research was to elucidate how endogenous ABA and GA concentrations change after the application of phytoregulators in seeds and how these changes affect reserve degradation during germination of Annona macroprophyllata and A. purpurea seeds. Seeds were submitted to three conditions:-no soaking, soaking-in-water and soaking-in-GA4+7 +benzyladenine. ABA, GA, lipids, proteins, and total soluble sugars were quantified at 0, 2, 5, 10, and 15 days after the beginning of treatments. The application of phytoregulators led change of the hormonal balance inducing increase in endogenous GA and reduction in ABA levels since seed soaking. During imbibition, the degradation of seed reserves (breaks proteins first, and then soluble sugars and finally lipids) was observed and complete germination was obtained after 10 days, with primary root emission. In both species, dormancy can be broken soon after seed dispersal when the balance between GA and ABA is endogenously changed (by exogenous application of phytoregulators), leading to metabolic reserve degradation and germination.Plant Biology BBVPZ Department Institute of Biosciences São Paulo State University (Unesp)Instituto de Ciencias Biológicas Universidad de Ciencias y Artes de Chiapas (UNICACH)Plant Biology BBVPZ Department Institute of Biosciences São Paulo State University (Unesp)Universidade Estadual Paulista (Unesp)Universidad de Ciencias y Artes de Chiapas (UNICACH)Ferreira, Gisela [UNESP]De-La-cruz-chacón, IvanGonzález-Esquinca, Alma Rosa2021-06-25T11:07:34Z2021-06-25T11:07:34Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1-11application/pdfhttp://dx.doi.org/10.1590/0100-29452020664Revista Brasileira de Fruticultura, v. 42, n. 6, p. 1-11, 2020.0100-2945http://hdl.handle.net/11449/20816610.1590/0100-29452020664S0100-294520200006020022-s2.0-85096405471S0100-29452020000602002.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Brasileira de Fruticulturainfo:eu-repo/semantics/openAccess2023-12-01T06:13:04Zoai:repositorio.unesp.br:11449/208166Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:12:56.001854Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Changes in hormonal balance as key to reserve degradation after dormancy overcoming in Annona macroprophyllata and Annona purpurea seeds Câmbios no balanço hormonal como chave para degradação de reservas após a superação da dormência de sementes de Annona macroprophyllata e Annona purpurea |
title |
Changes in hormonal balance as key to reserve degradation after dormancy overcoming in Annona macroprophyllata and Annona purpurea seeds |
spellingShingle |
Changes in hormonal balance as key to reserve degradation after dormancy overcoming in Annona macroprophyllata and Annona purpurea seeds Ferreira, Gisela [UNESP] Abscisic acid Germination Gibberellins Lipids Phytoregulators Plant growth regulators Proteins Soluble sugars |
title_short |
Changes in hormonal balance as key to reserve degradation after dormancy overcoming in Annona macroprophyllata and Annona purpurea seeds |
title_full |
Changes in hormonal balance as key to reserve degradation after dormancy overcoming in Annona macroprophyllata and Annona purpurea seeds |
title_fullStr |
Changes in hormonal balance as key to reserve degradation after dormancy overcoming in Annona macroprophyllata and Annona purpurea seeds |
title_full_unstemmed |
Changes in hormonal balance as key to reserve degradation after dormancy overcoming in Annona macroprophyllata and Annona purpurea seeds |
title_sort |
Changes in hormonal balance as key to reserve degradation after dormancy overcoming in Annona macroprophyllata and Annona purpurea seeds |
author |
Ferreira, Gisela [UNESP] |
author_facet |
Ferreira, Gisela [UNESP] De-La-cruz-chacón, Ivan González-Esquinca, Alma Rosa |
author_role |
author |
author2 |
De-La-cruz-chacón, Ivan González-Esquinca, Alma Rosa |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidad de Ciencias y Artes de Chiapas (UNICACH) |
dc.contributor.author.fl_str_mv |
Ferreira, Gisela [UNESP] De-La-cruz-chacón, Ivan González-Esquinca, Alma Rosa |
dc.subject.por.fl_str_mv |
Abscisic acid Germination Gibberellins Lipids Phytoregulators Plant growth regulators Proteins Soluble sugars |
topic |
Abscisic acid Germination Gibberellins Lipids Phytoregulators Plant growth regulators Proteins Soluble sugars |
description |
Studies on the effect of the applying of phytoregulators to overcome seed dormancy have been carried out in Annonaceae species, thus the endogenous relationship between abscisic acid and gibberellins after the application of phytoregulators needs to be known in these species. Considering the importance of hormonal balance in dormancy mechanisms, the aim of this research was to elucidate how endogenous ABA and GA concentrations change after the application of phytoregulators in seeds and how these changes affect reserve degradation during germination of Annona macroprophyllata and A. purpurea seeds. Seeds were submitted to three conditions:-no soaking, soaking-in-water and soaking-in-GA4+7 +benzyladenine. ABA, GA, lipids, proteins, and total soluble sugars were quantified at 0, 2, 5, 10, and 15 days after the beginning of treatments. The application of phytoregulators led change of the hormonal balance inducing increase in endogenous GA and reduction in ABA levels since seed soaking. During imbibition, the degradation of seed reserves (breaks proteins first, and then soluble sugars and finally lipids) was observed and complete germination was obtained after 10 days, with primary root emission. In both species, dormancy can be broken soon after seed dispersal when the balance between GA and ABA is endogenously changed (by exogenous application of phytoregulators), leading to metabolic reserve degradation and germination. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-01 2021-06-25T11:07:34Z 2021-06-25T11:07:34Z |
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/10.1590/0100-29452020664 Revista Brasileira de Fruticultura, v. 42, n. 6, p. 1-11, 2020. 0100-2945 http://hdl.handle.net/11449/208166 10.1590/0100-29452020664 S0100-29452020000602002 2-s2.0-85096405471 S0100-29452020000602002.pdf |
url |
http://dx.doi.org/10.1590/0100-29452020664 http://hdl.handle.net/11449/208166 |
identifier_str_mv |
Revista Brasileira de Fruticultura, v. 42, n. 6, p. 1-11, 2020. 0100-2945 10.1590/0100-29452020664 S0100-29452020000602002 2-s2.0-85096405471 S0100-29452020000602002.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Revista Brasileira de Fruticultura |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1-11 application/pdf |
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_ |
1808129034670833664 |