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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/81041
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T09:44:49Zoai: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:34982025-09-29 09:44:49.385CONICET 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 |
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1844613410588721152 |
score |
13.070432 |