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dc.contributor.authorPadilla, María Nieves-
dc.contributor.authorHernández, M. Luisa-
dc.contributor.authorSanz, Carlos-
dc.contributor.authorMartínez-Rivas, José Manuel-
dc.identifierdoi: 10.1016/j.phytochem.2011.11.006-
dc.identifierissn: 0031-9422-
dc.identifier.citationPhytochemistry 74: 58-68 (2012)-
dc.identifier.otherPMID: 22169502-
dc.description.abstractA lipoxygenase (LOX) cDNA clone (Oep2LOX1) has been isolated from olive fruit (Olea europaea cv. Picual). The deduced amino acid sequence displayed significant similarity to known plant LOX1 sequences. Genomic Southern blot analysis suggests that only one copy of Oep2LOX1 is present in the olive genome. Linolenic acid was the preferred substrate for the recombinant Oep2LOX1, which produced almost exclusively 9-hydroperoxide when linolenic acid was used as substrate, whereas a mixture of 9- and 13-hydroperoxides in a ratio 4:1 was formed from linoleic acid. Expression levels were measured in different tissues of Picual and Arbequina cultivars, including the mesocarp and seed during development and ripening of olive fruit. The results showed that Oep2LOX1 transcript level is spatially and temporally regulated. Besides, the transcriptional regulation of the Oep2LOX1 gene in response to different abiotic stresses was also investigated. Temperature, light and wounding regulate Oep2LOX1 gene expression in olive fruit mesocarp. The physiological role of the Oep2LOX1 gene during olive fruit ripening and in the stress response is discussed. © 2011 Elsevier Ltd. All rights reserved.-
dc.description.sponsorshipThis work was supported by research projects AGL2005-03959 from Programa Nacional de Recursos y Tecnologías Alimentarias and 2006 7 0I 055 from Programa I3 (MEC-CSIC), both funded by the Spanish Government; and P06-AGR-02151 and P09-AGR-4516 from Incentivos a Proyectos de Investigación de Excelencia funded by the Andalusian Government. M.N.P. and M.L.H. are recipients of FPI fellowships from Junta de Andalucía.-
dc.subjectOlea europaea-
dc.subjectGene expression-
dc.titleMolecular cloning, functional characterization and transcriptional regulation of a 9-lipoxygenase gene from olive-
dc.description.versionPeer Reviewed-
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