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Proteínas de almacenamiento tipo 11S en semillas de olivo (Olea europaea L.). Caracterización mediante técnicas de proteómica

Authors: Castro López, Antonio Jesús; Jiménez-López, José Carlos; Rodríguez García, María I.; Alché Ramírez, Juan de Dios;

Proteínas de almacenamiento tipo 11S en semillas de olivo (Olea europaea L.). Caracterización mediante técnicas de proteómica

Abstract

Los tejidos de reserva de la semilla del olivo acumulan grandes cantidades de proteínas de almacenamiento en forma de cuerpos proteicos. En este trabajo se analizaron extractos proteicos de cotiledón y endospermo mediante electroforesis bidimensional (2-D). Dichas técnicas permitieron detectar el carácter básico de los péptidos p1 y p2, así como el carácter ácido de p3, p4 y p5. La espectrometría de masas de diversos spot aislados, indicó una homología relevante con la subunidad básica de las leguminas de tipo 11S. También se detectó la presencia de diversas isoformas, algunas posiblemente resultantes de modificaciones postranscripcionales. La abundancia de estas proteínas en las semillas maduras de olivo hace que dicho material pueda ser considerado una fuente nitrogenada de posible uso como complemento en nutrición animal. Otras utilidades relevantes podrían explotar un posible carácter discriminatorio entre variedades para el desarrollo de programas de mejora genética en olivo actualmente en curso.

Este trabajo fue financiado gracias a los proyectos AGL2003-00719 y MEC BFU2004- 00601/BFI. Los autores agradecen al Consejo Superior de Investigaciones Científicas (CSIC) la concesión de una beca predoctoral (I3P-CSIC 2002).

6 páginas, 3 figuras, 1 tabla.-- Trabajo presentado al Simposium Científico–Técnico EXPOLIVA 2007.

Peer reviewed

Keywords

Proteínas de almacenamiento, Olivo, Endospermo, Semilla, Complemento nutricional, Cotiledón, 2D electroforesis, Inmunodetección

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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).
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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.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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