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Part of book or chapter of book . 2016
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La sacarosa: origen, evolución y función en las plantas

Authors: Salerno, Graciela Lidia;

La sacarosa: origen, evolución y función en las plantas

Abstract

El camino de labiosíntesis de la sacarosa en las plantas tiene lugar por acción de dos enzimas(SPS, sacarosa-fosfato sintasa, y SPP, sacarosa-fosfato fosfatasa) que actúanen forma sucesiva. Fue demostrado por primera vez por Luis F. Leloir y Carlos E.Cardini (1955). El producto de la primera reacción catalizada por la SPS (sacarosa-6-fosfato)es el sustrato de la SPP, una fosfatasa específica. Hasta la década del 70 sepublicaron escasos trabajos sobre el metabolismo de la sacarosa, pero ennuestro país se continuaron los estudios en el Departamento de Biología de laFundación Bariloche, dirigidos por Horacio Pontis. Ricardo Wolosiuk completó sutesis doctoral sobre la sacarosa sintetasa (hoy se denomina sacarosa sintasa,SuS) de Helianthus tuberosus (1974),otra enzima importante del metabolismo de la sacarosa, también descubierta porLeloir y Cardini. La sacarosa sintasa (SuS) cataliza una reacción reversible,que puede producir sacarosa o bien, en sentido inverso, clivarla, generando unnucleótido azúcar (UDP-glucosa o ADP-glucosa). Ésta es la reacción quegeneralmente ocurre in vivo, vinculando la sacarosa con la síntesis de glucanoscomo por ej. celulosa.

Fil: Salerno, Graciela Lidia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Biodiversidad y Biotecnología; Argentina. Fundación para Investigaciones Biológicas Aplicadas; Argentina

Country
Argentina
Keywords

FUNCION EN ORGANISMOS FOTOSINTÉTICOS, ESTRÉS, https://purl.org/becyt/ford/1.6, SACAROSA, SEÑALAMIENTO POR AZÚCARES, https://purl.org/becyt/ford/1

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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