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    Por favor, use este identificador para citar o enlazar este ítem:http://uvadoc.uva.es/handle/10324/41031

    Título
    Molecular characterization and systemic induction of single-chain ribosome-inactivating proteins (RIPs) in sugar beet (Beta vulgaris) leaves
    Autor
    Iglesias Álvarez, María del Rosariountranslated ORCID
    Pérez, Yolanda
    Torre, Carlos de la
    Ferreras Rodríguez, José Migueluntranslated ORCID
    Antolín, Pilar
    Jiménez López, María del Pilaruntranslated ORCID
    Rojo, María Ángeles
    Méndez, Enrique
    Girbés Juan, Tomásuntranslated ORCID
    Año del Documento
    2005
    Editorial
    Oxford University Press
    Descripción
    Producción Científica
    Documento Fuente
    Journal of Experimental Botany, 2005, vol. 56, n. 416. p. 1675-1684
    Abstract
    Sugar beet (Beta vulgaris L.) leaves contain virusinducible type 1 (single chain) ribosome-inactivating proteins that have been named beetins. The structural and functional characterization, the cellular location, and the potential role of beetins as antiviral agents are reported here. Beetins are formed of a single polypeptide chain with a varying degree of glycosylation and strongly inhibited in vitro protein synthesis in rabbit reticulocyte lysates (IC5051.15 ng ml21 ) and a Vicia sativa L. cell-free system (IC50568 ng ml21 ) through the single depurination of the large rRNA. Beetins trigger the multidepurination of tobacco mosaic virus (TMV) genomic RNA which underwent extensive degradation upon treatment with acid aniline. Beetins are extracellular proteins that were recovered from the apoplastic fluid. Induction of sugar beet RIPs with either H2O2 or artichoke mottled crinkle virus (AMCV) was observed in leaves distant from the site of application of such elicitors. The external application of purified beetin to sugar leaves prevented infection by AMCV which supports the preliminary hypothesis that beetins could be involved in plant systemic acquired resistance subjected to induction by phytopathogens.
    Palabras Clave
    Protein synthesis inhibitor
    Inhibidor de síntesis proteica
    Ribosome-inactivating proteins
    Proteínas inactivadoras de ribosomas
    Sugar beet
    Remolacha azucarera
    ISSN
    0022-0957
    Revisión por pares
    SI
    DOI
    10.1093/jxb/eri164
    Patrocinador
    Comisión Interministerial de Ciencia y Tecnología (grant BIO98-0727)
    Junta de Castilla y León - FIS (grant PI030258)
    Version del Editor
    https://academic.oup.com/jxb/article/56/416/1675/459322
    Propietario de los Derechos
    © 2005 Oxford University Press
    Idioma
    eng
    URI
    http://uvadoc.uva.es/handle/10324/41031
    Tipo de versión
    info:eu-repo/semantics/publishedVersion
    Derechos
    openAccess
    Collections
    • DEP55 - Artículos de revista [94]
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    Attribution-NonCommercial-NoDerivs 3.0 UnportedExcept where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Unported

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