Achene structure, development and lipid accumulation in sunflower cultivars differing in oil content at maturity

Autores
Mantese, Anita Ida; Medan, Diego; Hall, Antonio Juan
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Background and Aims: Sunflower cultivars exhibit a wide range of oil content in the mature achene, but the relationship between this and the dynamics of oil deposition in the achene during grain filling is not known. Information on the progress, during the whole achene growth period, of the formation of oil bodies in the components of the achene and its relationship with variations in final oil content is also lacking. Methods: The biomass dynamics of achene components (pericarp, embryo, oil) in three cultivars of very different final oil concentration (30-56 % oil) were studied. In parallel, anatomical sections were used to follow the formation of oil and protein bodies in the embryo, and to observe pericarp anatomy. Key Results: In all cultivars, oil bodies were first observed in the embryo 6-7 daa after anthesis (daa). The per-cell number of oil bodies increased rapidly from 10-12 daa until 25-30 daa. Oil bodies were absent from the outer cell layers of young fruit and from mature pericarps. In mature embryos, the proportion of cell cross-sectional area occupied by protein bodies increased with decreasing embryo oil concentration. The sclerenchymatic layer of the mature pericarp decreased in thickness and number of cell layers from the low-oil cultivar to the high-oil cultivar. Different patterns of oil accumulation in the embryo across cultivars were also found, leading to variations in ripe embryo oil concentration. In the high-oil cultivar, the end of oil deposition coincided with cessation of embryo growth, while in the other two cultivars oil ceased to accumulate before the embryo achieved maximum weight. Conclusions: Cultivar differences in mature achene oil concentration reflect variations in pericarp proportion and thickness and mature embryo oil concentration. Cultivar differences in protein body proportion and embryo and oil mass dynamics during achene growth underlie variations in embryo oil concentration. © The Author 2006. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved.
Fil: Mantese, Anita Ida. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente; Argentina
Fil: Medan, Diego. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Hall, Antonio Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Materia
LIPID ACCUMULATION
OIL BODY
PERICARP
PROTEIN BODY
SUNFLOWER
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/132011

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oai_identifier_str oai:ri.conicet.gov.ar:11336/132011
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Achene structure, development and lipid accumulation in sunflower cultivars differing in oil content at maturityMantese, Anita IdaMedan, DiegoHall, Antonio JuanLIPID ACCUMULATIONOIL BODYPERICARPPROTEIN BODYSUNFLOWERhttps://purl.org/becyt/ford/4.5https://purl.org/becyt/ford/4Background and Aims: Sunflower cultivars exhibit a wide range of oil content in the mature achene, but the relationship between this and the dynamics of oil deposition in the achene during grain filling is not known. Information on the progress, during the whole achene growth period, of the formation of oil bodies in the components of the achene and its relationship with variations in final oil content is also lacking. Methods: The biomass dynamics of achene components (pericarp, embryo, oil) in three cultivars of very different final oil concentration (30-56 % oil) were studied. In parallel, anatomical sections were used to follow the formation of oil and protein bodies in the embryo, and to observe pericarp anatomy. Key Results: In all cultivars, oil bodies were first observed in the embryo 6-7 daa after anthesis (daa). The per-cell number of oil bodies increased rapidly from 10-12 daa until 25-30 daa. Oil bodies were absent from the outer cell layers of young fruit and from mature pericarps. In mature embryos, the proportion of cell cross-sectional area occupied by protein bodies increased with decreasing embryo oil concentration. The sclerenchymatic layer of the mature pericarp decreased in thickness and number of cell layers from the low-oil cultivar to the high-oil cultivar. Different patterns of oil accumulation in the embryo across cultivars were also found, leading to variations in ripe embryo oil concentration. In the high-oil cultivar, the end of oil deposition coincided with cessation of embryo growth, while in the other two cultivars oil ceased to accumulate before the embryo achieved maximum weight. Conclusions: Cultivar differences in mature achene oil concentration reflect variations in pericarp proportion and thickness and mature embryo oil concentration. Cultivar differences in protein body proportion and embryo and oil mass dynamics during achene growth underlie variations in embryo oil concentration. © The Author 2006. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved.Fil: Mantese, Anita Ida. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente; ArgentinaFil: Medan, Diego. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Hall, Antonio Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; ArgentinaOxford University Press2006-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/132011Mantese, Anita Ida; Medan, Diego; Hall, Antonio Juan; Achene structure, development and lipid accumulation in sunflower cultivars differing in oil content at maturity; Oxford University Press; Annals of Botany; 97; 6; 6-2006; 999-10100305-73641095-8290CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/aob/article/97/6/999/206932info:eu-repo/semantics/altIdentifier/doi/10.1093/aob/mcl046info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:59:16Zoai:ri.conicet.gov.ar:11336/132011instacron: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 09:59:16.816CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Achene structure, development and lipid accumulation in sunflower cultivars differing in oil content at maturity
title Achene structure, development and lipid accumulation in sunflower cultivars differing in oil content at maturity
spellingShingle Achene structure, development and lipid accumulation in sunflower cultivars differing in oil content at maturity
Mantese, Anita Ida
LIPID ACCUMULATION
OIL BODY
PERICARP
PROTEIN BODY
SUNFLOWER
title_short Achene structure, development and lipid accumulation in sunflower cultivars differing in oil content at maturity
title_full Achene structure, development and lipid accumulation in sunflower cultivars differing in oil content at maturity
title_fullStr Achene structure, development and lipid accumulation in sunflower cultivars differing in oil content at maturity
title_full_unstemmed Achene structure, development and lipid accumulation in sunflower cultivars differing in oil content at maturity
title_sort Achene structure, development and lipid accumulation in sunflower cultivars differing in oil content at maturity
dc.creator.none.fl_str_mv Mantese, Anita Ida
Medan, Diego
Hall, Antonio Juan
author Mantese, Anita Ida
author_facet Mantese, Anita Ida
Medan, Diego
Hall, Antonio Juan
author_role author
author2 Medan, Diego
Hall, Antonio Juan
author2_role author
author
dc.subject.none.fl_str_mv LIPID ACCUMULATION
OIL BODY
PERICARP
PROTEIN BODY
SUNFLOWER
topic LIPID ACCUMULATION
OIL BODY
PERICARP
PROTEIN BODY
SUNFLOWER
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.5
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Background and Aims: Sunflower cultivars exhibit a wide range of oil content in the mature achene, but the relationship between this and the dynamics of oil deposition in the achene during grain filling is not known. Information on the progress, during the whole achene growth period, of the formation of oil bodies in the components of the achene and its relationship with variations in final oil content is also lacking. Methods: The biomass dynamics of achene components (pericarp, embryo, oil) in three cultivars of very different final oil concentration (30-56 % oil) were studied. In parallel, anatomical sections were used to follow the formation of oil and protein bodies in the embryo, and to observe pericarp anatomy. Key Results: In all cultivars, oil bodies were first observed in the embryo 6-7 daa after anthesis (daa). The per-cell number of oil bodies increased rapidly from 10-12 daa until 25-30 daa. Oil bodies were absent from the outer cell layers of young fruit and from mature pericarps. In mature embryos, the proportion of cell cross-sectional area occupied by protein bodies increased with decreasing embryo oil concentration. The sclerenchymatic layer of the mature pericarp decreased in thickness and number of cell layers from the low-oil cultivar to the high-oil cultivar. Different patterns of oil accumulation in the embryo across cultivars were also found, leading to variations in ripe embryo oil concentration. In the high-oil cultivar, the end of oil deposition coincided with cessation of embryo growth, while in the other two cultivars oil ceased to accumulate before the embryo achieved maximum weight. Conclusions: Cultivar differences in mature achene oil concentration reflect variations in pericarp proportion and thickness and mature embryo oil concentration. Cultivar differences in protein body proportion and embryo and oil mass dynamics during achene growth underlie variations in embryo oil concentration. © The Author 2006. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved.
Fil: Mantese, Anita Ida. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente; Argentina
Fil: Medan, Diego. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Hall, Antonio Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
description Background and Aims: Sunflower cultivars exhibit a wide range of oil content in the mature achene, but the relationship between this and the dynamics of oil deposition in the achene during grain filling is not known. Information on the progress, during the whole achene growth period, of the formation of oil bodies in the components of the achene and its relationship with variations in final oil content is also lacking. Methods: The biomass dynamics of achene components (pericarp, embryo, oil) in three cultivars of very different final oil concentration (30-56 % oil) were studied. In parallel, anatomical sections were used to follow the formation of oil and protein bodies in the embryo, and to observe pericarp anatomy. Key Results: In all cultivars, oil bodies were first observed in the embryo 6-7 daa after anthesis (daa). The per-cell number of oil bodies increased rapidly from 10-12 daa until 25-30 daa. Oil bodies were absent from the outer cell layers of young fruit and from mature pericarps. In mature embryos, the proportion of cell cross-sectional area occupied by protein bodies increased with decreasing embryo oil concentration. The sclerenchymatic layer of the mature pericarp decreased in thickness and number of cell layers from the low-oil cultivar to the high-oil cultivar. Different patterns of oil accumulation in the embryo across cultivars were also found, leading to variations in ripe embryo oil concentration. In the high-oil cultivar, the end of oil deposition coincided with cessation of embryo growth, while in the other two cultivars oil ceased to accumulate before the embryo achieved maximum weight. Conclusions: Cultivar differences in mature achene oil concentration reflect variations in pericarp proportion and thickness and mature embryo oil concentration. Cultivar differences in protein body proportion and embryo and oil mass dynamics during achene growth underlie variations in embryo oil concentration. © The Author 2006. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved.
publishDate 2006
dc.date.none.fl_str_mv 2006-06
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/11336/132011
Mantese, Anita Ida; Medan, Diego; Hall, Antonio Juan; Achene structure, development and lipid accumulation in sunflower cultivars differing in oil content at maturity; Oxford University Press; Annals of Botany; 97; 6; 6-2006; 999-1010
0305-7364
1095-8290
CONICET Digital
CONICET
url http://hdl.handle.net/11336/132011
identifier_str_mv Mantese, Anita Ida; Medan, Diego; Hall, Antonio Juan; Achene structure, development and lipid accumulation in sunflower cultivars differing in oil content at maturity; Oxford University Press; Annals of Botany; 97; 6; 6-2006; 999-1010
0305-7364
1095-8290
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/aob/article/97/6/999/206932
info:eu-repo/semantics/altIdentifier/doi/10.1093/aob/mcl046
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
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
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