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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/84336
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T10:02:16Zoai: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:34982025-09-29 10:02:17.152CONICET 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 |
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CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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score |
13.070432 |