Impact of protective agents and drying methods on desiccation tolerance of Salix nigra L. seeds

Autores
Santagapita, Patricio Roman; Ott Schneider, Helena; Agudelo Laverde, Lina Marcela; Buera, Maria del Pilar
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Willow seeds are classified as orthodox, but they show some recalcitrant characteristics, as they lose viability in a few weeks at room temperature. The aim of this work was to improve the desiccation tolerance of willow seeds (Salix nigra L.), as a model of sensitive materials to dehydration, through imbibition in solutions and later vacuum (VD) or freeze-drying (FD). Imbibition was conducted with 45% w/v trehalose or polyethylene glycol 400 -PEG- or water prior to dehydration treatments. Water- and especially trehalose-imbibed seeds subjected to VD showed better germination capability with respect to the freeze-dried ones. Water crystallization was mainly responsible for the great loss of capability germination observed in water- or trehalose-imbibed seeds subjected to FD. PEG behavior was better when seeds were FD instead of VD. DSC thermograms of seeds allowed to identify two thermal transitions corresponding to lipids melting and to proteins denaturation. This last transition reveals information about proteins state/functionality. Dehydration of control and PEG- or water-imbibed seeds affected proteins functionality leading to lower germinability. In the case of trehalose-imbibed seeds subjected to VD, proteins maintained their native state along dehydration, and the seeds showed a great germination capacity for all the water content range. Germinated seeds showed higher luminosity (L*), greenness (a*) and yellowness (b*) values than not-germinated seeds independently of the employed agent. Present work reveals that the presence of adequate protective agents as well the dehydration method were the main critical factors involved in willow seed desiccation tolerance.
Fil: Santagapita, Patricio Roman. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ott Schneider, Helena. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina
Fil: Agudelo Laverde, Lina Marcela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina
Fil: Buera, Maria del Pilar. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina
Materia
COLOR CHANGES
DEHYDRATION
IMBIBITION
ORTHODOX SEEDS
SEED DESSICATION OLERANCE
SEED PROTEIN DENATURATION
TREHALOSE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/84336
Acceder
id CONICETDig_7b46066b8997c00044d1eb02b1264ca2
oai_identifier_str oai:ri.conicet.gov.ar:11336/84336
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Impact of protective agents and drying methods on desiccation tolerance of Salix nigra L. seedsSantagapita, Patricio RomanOtt Schneider, HelenaAgudelo Laverde, Lina MarcelaBuera, Maria del PilarCOLOR CHANGESDEHYDRATIONIMBIBITIONORTHODOX SEEDSSEED DESSICATION OLERANCESEED PROTEIN DENATURATIONTREHALOSEhttps://purl.org/becyt/ford/4.4https://purl.org/becyt/ford/4Willow seeds are classified as orthodox, but they show some recalcitrant characteristics, as they lose viability in a few weeks at room temperature. The aim of this work was to improve the desiccation tolerance of willow seeds (Salix nigra L.), as a model of sensitive materials to dehydration, through imbibition in solutions and later vacuum (VD) or freeze-drying (FD). Imbibition was conducted with 45% w/v trehalose or polyethylene glycol 400 -PEG- or water prior to dehydration treatments. Water- and especially trehalose-imbibed seeds subjected to VD showed better germination capability with respect to the freeze-dried ones. Water crystallization was mainly responsible for the great loss of capability germination observed in water- or trehalose-imbibed seeds subjected to FD. PEG behavior was better when seeds were FD instead of VD. DSC thermograms of seeds allowed to identify two thermal transitions corresponding to lipids melting and to proteins denaturation. This last transition reveals information about proteins state/functionality. Dehydration of control and PEG- or water-imbibed seeds affected proteins functionality leading to lower germinability. In the case of trehalose-imbibed seeds subjected to VD, proteins maintained their native state along dehydration, and the seeds showed a great germination capacity for all the water content range. Germinated seeds showed higher luminosity (L*), greenness (a*) and yellowness (b*) values than not-germinated seeds independently of the employed agent. Present work reveals that the presence of adequate protective agents as well the dehydration method were the main critical factors involved in willow seed desiccation tolerance.Fil: Santagapita, Patricio Roman. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Ott Schneider, Helena. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; ArgentinaFil: Agudelo Laverde, Lina Marcela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; ArgentinaFil: Buera, Maria del Pilar. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; ArgentinaElsevier France-editions Scientifiques Medicales Elsevier2014-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/84336Santagapita, Patricio Roman; Ott Schneider, Helena; Agudelo Laverde, Lina Marcela; Buera, Maria del Pilar; Impact of protective agents and drying methods on desiccation tolerance of Salix nigra L. seeds; Elsevier France-editions Scientifiques Medicales Elsevier; Plant Physiology and Biochemistry; 82; 6-2014; 262-2690981-9428CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0981942814002022info:eu-repo/semantics/altIdentifier/doi/10.1016/j.plaphy.2014.06.014info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:31:43Zoai:ri.conicet.gov.ar:11336/84336instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:31:44.191CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Impact of protective agents and drying methods on desiccation tolerance of Salix nigra L. seeds
title Impact of protective agents and drying methods on desiccation tolerance of Salix nigra L. seeds
spellingShingle Impact of protective agents and drying methods on desiccation tolerance of Salix nigra L. seeds
Santagapita, Patricio Roman
COLOR CHANGES
DEHYDRATION
IMBIBITION
ORTHODOX SEEDS
SEED DESSICATION OLERANCE
SEED PROTEIN DENATURATION
TREHALOSE
title_short Impact of protective agents and drying methods on desiccation tolerance of Salix nigra L. seeds
title_full Impact of protective agents and drying methods on desiccation tolerance of Salix nigra L. seeds
title_fullStr Impact of protective agents and drying methods on desiccation tolerance of Salix nigra L. seeds
title_full_unstemmed Impact of protective agents and drying methods on desiccation tolerance of Salix nigra L. seeds
title_sort Impact of protective agents and drying methods on desiccation tolerance of Salix nigra L. seeds
dc.creator.none.fl_str_mv Santagapita, Patricio Roman
Ott Schneider, Helena
Agudelo Laverde, Lina Marcela
Buera, Maria del Pilar
author Santagapita, Patricio Roman
author_facet Santagapita, Patricio Roman
Ott Schneider, Helena
Agudelo Laverde, Lina Marcela
Buera, Maria del Pilar
author_role author
author2 Ott Schneider, Helena
Agudelo Laverde, Lina Marcela
Buera, Maria del Pilar
author2_role author
author
author
dc.subject.none.fl_str_mv COLOR CHANGES
DEHYDRATION
IMBIBITION
ORTHODOX SEEDS
SEED DESSICATION OLERANCE
SEED PROTEIN DENATURATION
TREHALOSE
topic COLOR CHANGES
DEHYDRATION
IMBIBITION
ORTHODOX SEEDS
SEED DESSICATION OLERANCE
SEED PROTEIN DENATURATION
TREHALOSE
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.4
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Willow seeds are classified as orthodox, but they show some recalcitrant characteristics, as they lose viability in a few weeks at room temperature. The aim of this work was to improve the desiccation tolerance of willow seeds (Salix nigra L.), as a model of sensitive materials to dehydration, through imbibition in solutions and later vacuum (VD) or freeze-drying (FD). Imbibition was conducted with 45% w/v trehalose or polyethylene glycol 400 -PEG- or water prior to dehydration treatments. Water- and especially trehalose-imbibed seeds subjected to VD showed better germination capability with respect to the freeze-dried ones. Water crystallization was mainly responsible for the great loss of capability germination observed in water- or trehalose-imbibed seeds subjected to FD. PEG behavior was better when seeds were FD instead of VD. DSC thermograms of seeds allowed to identify two thermal transitions corresponding to lipids melting and to proteins denaturation. This last transition reveals information about proteins state/functionality. Dehydration of control and PEG- or water-imbibed seeds affected proteins functionality leading to lower germinability. In the case of trehalose-imbibed seeds subjected to VD, proteins maintained their native state along dehydration, and the seeds showed a great germination capacity for all the water content range. Germinated seeds showed higher luminosity (L*), greenness (a*) and yellowness (b*) values than not-germinated seeds independently of the employed agent. Present work reveals that the presence of adequate protective agents as well the dehydration method were the main critical factors involved in willow seed desiccation tolerance.
Fil: Santagapita, Patricio Roman. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ott Schneider, Helena. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina
Fil: Agudelo Laverde, Lina Marcela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina
Fil: Buera, Maria del Pilar. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina
description Willow seeds are classified as orthodox, but they show some recalcitrant characteristics, as they lose viability in a few weeks at room temperature. The aim of this work was to improve the desiccation tolerance of willow seeds (Salix nigra L.), as a model of sensitive materials to dehydration, through imbibition in solutions and later vacuum (VD) or freeze-drying (FD). Imbibition was conducted with 45% w/v trehalose or polyethylene glycol 400 -PEG- or water prior to dehydration treatments. Water- and especially trehalose-imbibed seeds subjected to VD showed better germination capability with respect to the freeze-dried ones. Water crystallization was mainly responsible for the great loss of capability germination observed in water- or trehalose-imbibed seeds subjected to FD. PEG behavior was better when seeds were FD instead of VD. DSC thermograms of seeds allowed to identify two thermal transitions corresponding to lipids melting and to proteins denaturation. This last transition reveals information about proteins state/functionality. Dehydration of control and PEG- or water-imbibed seeds affected proteins functionality leading to lower germinability. In the case of trehalose-imbibed seeds subjected to VD, proteins maintained their native state along dehydration, and the seeds showed a great germination capacity for all the water content range. Germinated seeds showed higher luminosity (L*), greenness (a*) and yellowness (b*) values than not-germinated seeds independently of the employed agent. Present work reveals that the presence of adequate protective agents as well the dehydration method were the main critical factors involved in willow seed desiccation tolerance.
publishDate 2014
dc.date.none.fl_str_mv 2014-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/84336
Santagapita, Patricio Roman; Ott Schneider, Helena; Agudelo Laverde, Lina Marcela; Buera, Maria del Pilar; Impact of protective agents and drying methods on desiccation tolerance of Salix nigra L. seeds; Elsevier France-editions Scientifiques Medicales Elsevier; Plant Physiology and Biochemistry; 82; 6-2014; 262-269
0981-9428
CONICET Digital
CONICET
url http://hdl.handle.net/11336/84336
identifier_str_mv Santagapita, Patricio Roman; Ott Schneider, Helena; Agudelo Laverde, Lina Marcela; Buera, Maria del Pilar; Impact of protective agents and drying methods on desiccation tolerance of Salix nigra L. seeds; Elsevier France-editions Scientifiques Medicales Elsevier; Plant Physiology and Biochemistry; 82; 6-2014; 262-269
0981-9428
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0981942814002022
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.plaphy.2014.06.014
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier France-editions Scientifiques Medicales Elsevier
publisher.none.fl_str_mv Elsevier France-editions Scientifiques Medicales Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846781923950592000
score 12.982451

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