Day-night variation in fatty acids and lipids biosynthesis in sunflower seeds

Autores
Pleite, Rafael; Rondanini, Deborah Paola; Garcés, Rafael; Martínez Force, Enrique
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
It is well known that fatty acid biosynthesis in leaves is closely related to photosynthesis; although a residual synthesis is also detected at night. But less known is the effect of the day-night cycle in fatty acid biosynthesis in heterotrophic tissues such as developing seeds. Through the use of radioactive precursors, we detected variations in the metabolism of fatty acids and lipids during the day-night period in sunflower (Helianthus annuus L.) seeds. These oscillations have been observed both in the fatty acids bound to triacylglycerols and in polar lipids, indicating a fine regulation of the lipids biosynthetic activities in sunflower developing seeds. Additionally, in the triacylglycerol fraction, periodic variations were observed in the oleic and linoleic acids content as a consequence of qualitative variations in the biosynthetic machinery during the day-night period related to temperature changes. Analyzing the rate of oleic acid desaturation, we observed a significant increase in activity in the middle of the night, indicative of the importance of nocturnal desaturation. Similar variations were also observed in the stearoyl-acyl carrier protein (ACP) desaturase activity. This study has shown the variation in the lipid biosynthetic capacity in sunflower developing seeds during the day-night cycle - including control over individual enzymes such as the stearoyl-ACP desaturase-and the influence of diurnal and nocturnal temperatures in the quality (oleic/linoleic ratio) of the oil.
Fil: Pleite, Rafael. Consejo Superior de Investigaciones Científicas; España
Fil: Rondanini, Deborah Paola. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Biología Aplicada y Alimentos. Cátedra de Fisiología Vegetal; Argentina
Fil: Garcés, Rafael. Consejo Superior de Investigaciones Científicas; España
Fil: Martínez Force, Enrique. Consejo Superior de Investigaciones Científicas; España
Materia
Sunflower
Fatty Acid
Day-Night Cycle
Circadiam Rithm
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:11336/81041
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Day-night variation in fatty acids and lipids biosynthesis in sunflower seedsPleite, RafaelRondanini, Deborah PaolaGarcés, RafaelMartínez Force, EnriqueSunflowerFatty AcidDay-Night CycleCircadiam Rithmhttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4It is well known that fatty acid biosynthesis in leaves is closely related to photosynthesis; although a residual synthesis is also detected at night. But less known is the effect of the day-night cycle in fatty acid biosynthesis in heterotrophic tissues such as developing seeds. Through the use of radioactive precursors, we detected variations in the metabolism of fatty acids and lipids during the day-night period in sunflower (Helianthus annuus L.) seeds. These oscillations have been observed both in the fatty acids bound to triacylglycerols and in polar lipids, indicating a fine regulation of the lipids biosynthetic activities in sunflower developing seeds. Additionally, in the triacylglycerol fraction, periodic variations were observed in the oleic and linoleic acids content as a consequence of qualitative variations in the biosynthetic machinery during the day-night period related to temperature changes. Analyzing the rate of oleic acid desaturation, we observed a significant increase in activity in the middle of the night, indicative of the importance of nocturnal desaturation. Similar variations were also observed in the stearoyl-acyl carrier protein (ACP) desaturase activity. This study has shown the variation in the lipid biosynthetic capacity in sunflower developing seeds during the day-night cycle - including control over individual enzymes such as the stearoyl-ACP desaturase-and the influence of diurnal and nocturnal temperatures in the quality (oleic/linoleic ratio) of the oil.Fil: Pleite, Rafael. Consejo Superior de Investigaciones Científicas; EspañaFil: Rondanini, Deborah Paola. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Biología Aplicada y Alimentos. Cátedra de Fisiología Vegetal; ArgentinaFil: Garcés, Rafael. Consejo Superior de Investigaciones Científicas; EspañaFil: Martínez Force, Enrique. Consejo Superior de Investigaciones Científicas; EspañaCrop Science Society of America2008-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/81041Pleite, Rafael; Rondanini, Deborah Paola; Garcés, Rafael; Martínez Force, Enrique; Day-night variation in fatty acids and lipids biosynthesis in sunflower seeds; Crop Science Society of America; Crop Science; 48; 5; 9-2008; 1952-19570011-183XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.2135/cropsci2007.11.0645info:eu-repo/semantics/altIdentifier/url/https://dl.sciencesocieties.org/publications/cs/abstracts/48/5/1952info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:38:25Zoai:ri.conicet.gov.ar:11336/81041instacron: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:34982025-10-15 14:38:25.642CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Day-night variation in fatty acids and lipids biosynthesis in sunflower seeds
title Day-night variation in fatty acids and lipids biosynthesis in sunflower seeds
spellingShingle Day-night variation in fatty acids and lipids biosynthesis in sunflower seeds
Pleite, Rafael
Sunflower
Fatty Acid
Day-Night Cycle
Circadiam Rithm
title_short Day-night variation in fatty acids and lipids biosynthesis in sunflower seeds
title_full Day-night variation in fatty acids and lipids biosynthesis in sunflower seeds
title_fullStr Day-night variation in fatty acids and lipids biosynthesis in sunflower seeds
title_full_unstemmed Day-night variation in fatty acids and lipids biosynthesis in sunflower seeds
title_sort Day-night variation in fatty acids and lipids biosynthesis in sunflower seeds
dc.creator.none.fl_str_mv Pleite, Rafael
Rondanini, Deborah Paola
Garcés, Rafael
Martínez Force, Enrique
author Pleite, Rafael
author_facet Pleite, Rafael
Rondanini, Deborah Paola
Garcés, Rafael
Martínez Force, Enrique
author_role author
author2 Rondanini, Deborah Paola
Garcés, Rafael
Martínez Force, Enrique
author2_role author
author
author
dc.subject.none.fl_str_mv Sunflower
Fatty Acid
Day-Night Cycle
Circadiam Rithm
topic Sunflower
Fatty Acid
Day-Night Cycle
Circadiam Rithm
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv It is well known that fatty acid biosynthesis in leaves is closely related to photosynthesis; although a residual synthesis is also detected at night. But less known is the effect of the day-night cycle in fatty acid biosynthesis in heterotrophic tissues such as developing seeds. Through the use of radioactive precursors, we detected variations in the metabolism of fatty acids and lipids during the day-night period in sunflower (Helianthus annuus L.) seeds. These oscillations have been observed both in the fatty acids bound to triacylglycerols and in polar lipids, indicating a fine regulation of the lipids biosynthetic activities in sunflower developing seeds. Additionally, in the triacylglycerol fraction, periodic variations were observed in the oleic and linoleic acids content as a consequence of qualitative variations in the biosynthetic machinery during the day-night period related to temperature changes. Analyzing the rate of oleic acid desaturation, we observed a significant increase in activity in the middle of the night, indicative of the importance of nocturnal desaturation. Similar variations were also observed in the stearoyl-acyl carrier protein (ACP) desaturase activity. This study has shown the variation in the lipid biosynthetic capacity in sunflower developing seeds during the day-night cycle - including control over individual enzymes such as the stearoyl-ACP desaturase-and the influence of diurnal and nocturnal temperatures in the quality (oleic/linoleic ratio) of the oil.
Fil: Pleite, Rafael. Consejo Superior de Investigaciones Científicas; España
Fil: Rondanini, Deborah Paola. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Biología Aplicada y Alimentos. Cátedra de Fisiología Vegetal; Argentina
Fil: Garcés, Rafael. Consejo Superior de Investigaciones Científicas; España
Fil: Martínez Force, Enrique. Consejo Superior de Investigaciones Científicas; España
description It is well known that fatty acid biosynthesis in leaves is closely related to photosynthesis; although a residual synthesis is also detected at night. But less known is the effect of the day-night cycle in fatty acid biosynthesis in heterotrophic tissues such as developing seeds. Through the use of radioactive precursors, we detected variations in the metabolism of fatty acids and lipids during the day-night period in sunflower (Helianthus annuus L.) seeds. These oscillations have been observed both in the fatty acids bound to triacylglycerols and in polar lipids, indicating a fine regulation of the lipids biosynthetic activities in sunflower developing seeds. Additionally, in the triacylglycerol fraction, periodic variations were observed in the oleic and linoleic acids content as a consequence of qualitative variations in the biosynthetic machinery during the day-night period related to temperature changes. Analyzing the rate of oleic acid desaturation, we observed a significant increase in activity in the middle of the night, indicative of the importance of nocturnal desaturation. Similar variations were also observed in the stearoyl-acyl carrier protein (ACP) desaturase activity. This study has shown the variation in the lipid biosynthetic capacity in sunflower developing seeds during the day-night cycle - including control over individual enzymes such as the stearoyl-ACP desaturase-and the influence of diurnal and nocturnal temperatures in the quality (oleic/linoleic ratio) of the oil.
publishDate 2008
dc.date.none.fl_str_mv 2008-09
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/11336/81041
Pleite, Rafael; Rondanini, Deborah Paola; Garcés, Rafael; Martínez Force, Enrique; Day-night variation in fatty acids and lipids biosynthesis in sunflower seeds; Crop Science Society of America; Crop Science; 48; 5; 9-2008; 1952-1957
0011-183X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/81041
identifier_str_mv Pleite, Rafael; Rondanini, Deborah Paola; Garcés, Rafael; Martínez Force, Enrique; Day-night variation in fatty acids and lipids biosynthesis in sunflower seeds; Crop Science Society of America; Crop Science; 48; 5; 9-2008; 1952-1957
0011-183X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.2135/cropsci2007.11.0645
info:eu-repo/semantics/altIdentifier/url/https://dl.sciencesocieties.org/publications/cs/abstracts/48/5/1952
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 Crop Science Society of America
publisher.none.fl_str_mv Crop Science Society of America
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_ 1846082863222489088
score 13.22299

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