Proline and trehalose in maize seeds germinating under low osmotic potentials
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/1807-1929/agriambi.v20n1p22-28 http://hdl.handle.net/11449/158876 |
Resumo: | Although it is relatively well known that adult plants tend to accumulate proline and trehalose in their tissues as a physiological mechanism in response to drought, there is scarce information about the development of this physiological response in seeds. Thus, the objective of this research was to verify if maize seeds are able to develop mechanism of osmoprotection, when are germinating under low osmotic potential, and the possibility to use the levels of trehalose and proline in a defined seed part, aiming to differentiate genotypes regarding drought tolerance. The experiment was performed as a factorial arrangement of 2 x 5 (2 hybrids x 5 osmotic potential) within a completely randomized design, with four replicates. It was found that the proline content in the embryo axis of maize seeds germinating under water limitation is directly proportional to the intensity of this stress. Distinct hybrids show different proline levels accumulated in the embryo axis, when seeds are germinating under the same conditions of water limitation. The trehalose content tends to decrease in the embryo axis and in the endosperm of maize seeds germinating under increasing water limitation, but the reduction is not directly proportional to osmotic potential. |
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Proline and trehalose in maize seeds germinating under low osmotic potentialsZea maysgerminationwater restrictionosmoregulationcompatible solutesAlthough it is relatively well known that adult plants tend to accumulate proline and trehalose in their tissues as a physiological mechanism in response to drought, there is scarce information about the development of this physiological response in seeds. Thus, the objective of this research was to verify if maize seeds are able to develop mechanism of osmoprotection, when are germinating under low osmotic potential, and the possibility to use the levels of trehalose and proline in a defined seed part, aiming to differentiate genotypes regarding drought tolerance. The experiment was performed as a factorial arrangement of 2 x 5 (2 hybrids x 5 osmotic potential) within a completely randomized design, with four replicates. It was found that the proline content in the embryo axis of maize seeds germinating under water limitation is directly proportional to the intensity of this stress. Distinct hybrids show different proline levels accumulated in the embryo axis, when seeds are germinating under the same conditions of water limitation. The trehalose content tends to decrease in the embryo axis and in the endosperm of maize seeds germinating under increasing water limitation, but the reduction is not directly proportional to osmotic potential.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Estadual Paulista, Fac Ciencias Agr & Vet, Jaboticabal, SP, BrazilUniv Estadual Paulista, Fac Ciencias Agr & Vet, Jaboticabal, SP, BrazilFAPESP: 2007/54.746-2Univ Federal Campina GrandeUniversidade Estadual Paulista (Unesp)Queiroz, Rafaela J. B. [UNESP]Cazetta, Jairo O. [UNESP]2018-11-26T15:29:38Z2018-11-26T15:29:38Z2016-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article22-28application/pdfhttp://dx.doi.org/10.1590/1807-1929/agriambi.v20n1p22-28Revista Brasileira De Engenharia Agricola E Ambiental. Campina Grande Pb: Univ Federal Campina Grande, v. 20, n. 1, p. 22-28, 2016.1807-1929http://hdl.handle.net/11449/15887610.1590/1807-1929/agriambi.v20n1p22-28S1415-43662016000100022WOS:000376487200004S1415-43662016000100022.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Brasileira De Engenharia Agricola E Ambientalinfo:eu-repo/semantics/openAccess2023-12-07T06:14:09Zoai:repositorio.unesp.br:11449/158876Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-07T06:14:09Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Proline and trehalose in maize seeds germinating under low osmotic potentials |
title |
Proline and trehalose in maize seeds germinating under low osmotic potentials |
spellingShingle |
Proline and trehalose in maize seeds germinating under low osmotic potentials Queiroz, Rafaela J. B. [UNESP] Zea mays germination water restriction osmoregulation compatible solutes |
title_short |
Proline and trehalose in maize seeds germinating under low osmotic potentials |
title_full |
Proline and trehalose in maize seeds germinating under low osmotic potentials |
title_fullStr |
Proline and trehalose in maize seeds germinating under low osmotic potentials |
title_full_unstemmed |
Proline and trehalose in maize seeds germinating under low osmotic potentials |
title_sort |
Proline and trehalose in maize seeds germinating under low osmotic potentials |
author |
Queiroz, Rafaela J. B. [UNESP] |
author_facet |
Queiroz, Rafaela J. B. [UNESP] Cazetta, Jairo O. [UNESP] |
author_role |
author |
author2 |
Cazetta, Jairo O. [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Queiroz, Rafaela J. B. [UNESP] Cazetta, Jairo O. [UNESP] |
dc.subject.por.fl_str_mv |
Zea mays germination water restriction osmoregulation compatible solutes |
topic |
Zea mays germination water restriction osmoregulation compatible solutes |
description |
Although it is relatively well known that adult plants tend to accumulate proline and trehalose in their tissues as a physiological mechanism in response to drought, there is scarce information about the development of this physiological response in seeds. Thus, the objective of this research was to verify if maize seeds are able to develop mechanism of osmoprotection, when are germinating under low osmotic potential, and the possibility to use the levels of trehalose and proline in a defined seed part, aiming to differentiate genotypes regarding drought tolerance. The experiment was performed as a factorial arrangement of 2 x 5 (2 hybrids x 5 osmotic potential) within a completely randomized design, with four replicates. It was found that the proline content in the embryo axis of maize seeds germinating under water limitation is directly proportional to the intensity of this stress. Distinct hybrids show different proline levels accumulated in the embryo axis, when seeds are germinating under the same conditions of water limitation. The trehalose content tends to decrease in the embryo axis and in the endosperm of maize seeds germinating under increasing water limitation, but the reduction is not directly proportional to osmotic potential. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01-01 2018-11-26T15:29:38Z 2018-11-26T15:29:38Z |
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/10.1590/1807-1929/agriambi.v20n1p22-28 Revista Brasileira De Engenharia Agricola E Ambiental. Campina Grande Pb: Univ Federal Campina Grande, v. 20, n. 1, p. 22-28, 2016. 1807-1929 http://hdl.handle.net/11449/158876 10.1590/1807-1929/agriambi.v20n1p22-28 S1415-43662016000100022 WOS:000376487200004 S1415-43662016000100022.pdf |
url |
http://dx.doi.org/10.1590/1807-1929/agriambi.v20n1p22-28 http://hdl.handle.net/11449/158876 |
identifier_str_mv |
Revista Brasileira De Engenharia Agricola E Ambiental. Campina Grande Pb: Univ Federal Campina Grande, v. 20, n. 1, p. 22-28, 2016. 1807-1929 10.1590/1807-1929/agriambi.v20n1p22-28 S1415-43662016000100022 WOS:000376487200004 S1415-43662016000100022.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Revista Brasileira De Engenharia Agricola E Ambiental |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
22-28 application/pdf |
dc.publisher.none.fl_str_mv |
Univ Federal Campina Grande |
publisher.none.fl_str_mv |
Univ Federal Campina Grande |
dc.source.none.fl_str_mv |
Web of Science 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 |
|
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1803649917713907712 |