Changes in soluble carbohydrates and related enzymes induced by low temperature during early developmental stages of quinoa () seedlings

Autores
Rosa, Mariana Daniela; Hilal, Mirna Beatriz; González, Juan Antonio; Prado, Fernando Eduardo
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Low temperature represents one of the principal limitations in species distribution and crop productivity. Responses to chilling include the accumulation of simple carbohydrates and changes in enzymes involved in their metabolism. Soluble carbohydrate levels and invertase, sucrose synthase (SS), sucrose-6-phosphate synthase (SPS) and á-amylase activities were analysed in cotyledons and embryonic axes of quinoa seedlings grown at 5 °C and 25 °C in the dark. Significant differences in enzyme activities and carbohydrate levels were observed. Sucrose content in cotyledons was found to be similar in both treatments, while in embryonic axes there were differences. Invertase activity was the most sensitive to temperature in both organs; however, SS and SPS activities appear to be less stress-sensitive. Results suggest that 1) metabolism in germinating perispermic seeds would be different from endospermic seeds, 2) sucrose futile cycles would be operating in cotyledons, but not in embryonic axes of quinoa seedlings under our experimental conditions, 3) low temperature might induce different regulatory mechanisms on invertase, SS and SPS enzymes in both cotyledons and embryonic axes of quinoa seedlings, and 4) low temperature rather than water uptake would be mainly responsible for the changes observed in carbohydrate and related enzyme activities.
Fil: Rosa, Mariana Daniela. Universidad Nacional de Tucumán. Instituto de Bioprospección y Fisiología Vegetal. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Instituto de Bioprospección y Fisiología Vegetal; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Cátedra de Fisiología Vegetal; Argentina
Fil: Hilal, Mirna Beatriz. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Cátedra de Fisiología Vegetal; Argentina
Fil: González, Juan Antonio. Fundación Miguel Lillo. Dirección de Botánica. Instituto de Ecología Vegetal; Argentina
Fil: Prado, Fernando Eduardo. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina
Materia
SS
SPS
UDP
UDPGGLU
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:11336/111129
Acceder
id CONICETDig_5cb204ebee48a0ea4a5941a8983e51b1
oai_identifier_str oai:ri.conicet.gov.ar:11336/111129
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Changes in soluble carbohydrates and related enzymes induced by low temperature during early developmental stages of quinoa () seedlingsRosa, Mariana DanielaHilal, Mirna BeatrizGonzález, Juan AntonioPrado, Fernando EduardoSSSPSUDPUDPGGLUhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Low temperature represents one of the principal limitations in species distribution and crop productivity. Responses to chilling include the accumulation of simple carbohydrates and changes in enzymes involved in their metabolism. Soluble carbohydrate levels and invertase, sucrose synthase (SS), sucrose-6-phosphate synthase (SPS) and á-amylase activities were analysed in cotyledons and embryonic axes of quinoa seedlings grown at 5 °C and 25 °C in the dark. Significant differences in enzyme activities and carbohydrate levels were observed. Sucrose content in cotyledons was found to be similar in both treatments, while in embryonic axes there were differences. Invertase activity was the most sensitive to temperature in both organs; however, SS and SPS activities appear to be less stress-sensitive. Results suggest that 1) metabolism in germinating perispermic seeds would be different from endospermic seeds, 2) sucrose futile cycles would be operating in cotyledons, but not in embryonic axes of quinoa seedlings under our experimental conditions, 3) low temperature might induce different regulatory mechanisms on invertase, SS and SPS enzymes in both cotyledons and embryonic axes of quinoa seedlings, and 4) low temperature rather than water uptake would be mainly responsible for the changes observed in carbohydrate and related enzyme activities.Fil: Rosa, Mariana Daniela. Universidad Nacional de Tucumán. Instituto de Bioprospección y Fisiología Vegetal. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Instituto de Bioprospección y Fisiología Vegetal; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Cátedra de Fisiología Vegetal; ArgentinaFil: Hilal, Mirna Beatriz. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Cátedra de Fisiología Vegetal; ArgentinaFil: González, Juan Antonio. Fundación Miguel Lillo. Dirección de Botánica. Instituto de Ecología Vegetal; ArgentinaFil: Prado, Fernando Eduardo. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; ArgentinaElsevier Gmbh2004-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/111129Rosa, Mariana Daniela; Hilal, Mirna Beatriz; González, Juan Antonio; Prado, Fernando Eduardo; Changes in soluble carbohydrates and related enzymes induced by low temperature during early developmental stages of quinoa () seedlings; Elsevier Gmbh; Journal of Plant Physiology; 161; 6; 2-2004; 683-6890176-1617CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S017616170470632Xinfo:eu-repo/semantics/altIdentifier/doi/10.1078/0176-1617-01257info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:34:03Zoai:ri.conicet.gov.ar:11336/111129instacron: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 15:34:03.761CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Changes in soluble carbohydrates and related enzymes induced by low temperature during early developmental stages of quinoa () seedlings
title Changes in soluble carbohydrates and related enzymes induced by low temperature during early developmental stages of quinoa () seedlings
spellingShingle Changes in soluble carbohydrates and related enzymes induced by low temperature during early developmental stages of quinoa () seedlings
Rosa, Mariana Daniela
SS
SPS
UDP
UDPGGLU
title_short Changes in soluble carbohydrates and related enzymes induced by low temperature during early developmental stages of quinoa () seedlings
title_full Changes in soluble carbohydrates and related enzymes induced by low temperature during early developmental stages of quinoa () seedlings
title_fullStr Changes in soluble carbohydrates and related enzymes induced by low temperature during early developmental stages of quinoa () seedlings
title_full_unstemmed Changes in soluble carbohydrates and related enzymes induced by low temperature during early developmental stages of quinoa () seedlings
title_sort Changes in soluble carbohydrates and related enzymes induced by low temperature during early developmental stages of quinoa () seedlings
dc.creator.none.fl_str_mv Rosa, Mariana Daniela
Hilal, Mirna Beatriz
González, Juan Antonio
Prado, Fernando Eduardo
author Rosa, Mariana Daniela
author_facet Rosa, Mariana Daniela
Hilal, Mirna Beatriz
González, Juan Antonio
Prado, Fernando Eduardo
author_role author
author2 Hilal, Mirna Beatriz
González, Juan Antonio
Prado, Fernando Eduardo
author2_role author
author
author
dc.subject.none.fl_str_mv SS
SPS
UDP
UDPGGLU
topic SS
SPS
UDP
UDPGGLU
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Low temperature represents one of the principal limitations in species distribution and crop productivity. Responses to chilling include the accumulation of simple carbohydrates and changes in enzymes involved in their metabolism. Soluble carbohydrate levels and invertase, sucrose synthase (SS), sucrose-6-phosphate synthase (SPS) and á-amylase activities were analysed in cotyledons and embryonic axes of quinoa seedlings grown at 5 °C and 25 °C in the dark. Significant differences in enzyme activities and carbohydrate levels were observed. Sucrose content in cotyledons was found to be similar in both treatments, while in embryonic axes there were differences. Invertase activity was the most sensitive to temperature in both organs; however, SS and SPS activities appear to be less stress-sensitive. Results suggest that 1) metabolism in germinating perispermic seeds would be different from endospermic seeds, 2) sucrose futile cycles would be operating in cotyledons, but not in embryonic axes of quinoa seedlings under our experimental conditions, 3) low temperature might induce different regulatory mechanisms on invertase, SS and SPS enzymes in both cotyledons and embryonic axes of quinoa seedlings, and 4) low temperature rather than water uptake would be mainly responsible for the changes observed in carbohydrate and related enzyme activities.
Fil: Rosa, Mariana Daniela. Universidad Nacional de Tucumán. Instituto de Bioprospección y Fisiología Vegetal. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Instituto de Bioprospección y Fisiología Vegetal; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Cátedra de Fisiología Vegetal; Argentina
Fil: Hilal, Mirna Beatriz. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Cátedra de Fisiología Vegetal; Argentina
Fil: González, Juan Antonio. Fundación Miguel Lillo. Dirección de Botánica. Instituto de Ecología Vegetal; Argentina
Fil: Prado, Fernando Eduardo. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina
description Low temperature represents one of the principal limitations in species distribution and crop productivity. Responses to chilling include the accumulation of simple carbohydrates and changes in enzymes involved in their metabolism. Soluble carbohydrate levels and invertase, sucrose synthase (SS), sucrose-6-phosphate synthase (SPS) and á-amylase activities were analysed in cotyledons and embryonic axes of quinoa seedlings grown at 5 °C and 25 °C in the dark. Significant differences in enzyme activities and carbohydrate levels were observed. Sucrose content in cotyledons was found to be similar in both treatments, while in embryonic axes there were differences. Invertase activity was the most sensitive to temperature in both organs; however, SS and SPS activities appear to be less stress-sensitive. Results suggest that 1) metabolism in germinating perispermic seeds would be different from endospermic seeds, 2) sucrose futile cycles would be operating in cotyledons, but not in embryonic axes of quinoa seedlings under our experimental conditions, 3) low temperature might induce different regulatory mechanisms on invertase, SS and SPS enzymes in both cotyledons and embryonic axes of quinoa seedlings, and 4) low temperature rather than water uptake would be mainly responsible for the changes observed in carbohydrate and related enzyme activities.
publishDate 2004
dc.date.none.fl_str_mv 2004-02
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/11336/111129
Rosa, Mariana Daniela; Hilal, Mirna Beatriz; González, Juan Antonio; Prado, Fernando Eduardo; Changes in soluble carbohydrates and related enzymes induced by low temperature during early developmental stages of quinoa () seedlings; Elsevier Gmbh; Journal of Plant Physiology; 161; 6; 2-2004; 683-689
0176-1617
CONICET Digital
CONICET
url http://hdl.handle.net/11336/111129
identifier_str_mv Rosa, Mariana Daniela; Hilal, Mirna Beatriz; González, Juan Antonio; Prado, Fernando Eduardo; Changes in soluble carbohydrates and related enzymes induced by low temperature during early developmental stages of quinoa () seedlings; Elsevier Gmbh; Journal of Plant Physiology; 161; 6; 2-2004; 683-689
0176-1617
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://www.sciencedirect.com/science/article/pii/S017616170470632X
info:eu-repo/semantics/altIdentifier/doi/10.1078/0176-1617-01257
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
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Gmbh
publisher.none.fl_str_mv Elsevier Gmbh
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_ 1846083469731430400
score 13.22299

Publicaciones similares