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dc.contributor.authorAlos, Enriquetaes_ES
dc.contributor.authorMartinez-Fuentes, A.es_ES
dc.contributor.authorReig, C.es_ES
dc.contributor.authorMesejo, C.es_ES
dc.contributor.authorZacarías, Lorenzoes_ES
dc.contributor.authorRodrigo, María Jesúses_ES
dc.date.accessioned2018-12-26T13:50:35Z-
dc.date.available2018-12-26T13:50:35Z-
dc.date.issued2018-12-06-
dc.identifier.citationPostharvest Biology and Technology 149: 129-138 (2019)es_ES
dc.identifier.issn0925-5214-
dc.identifier.urihttp://hdl.handle.net/10261/173642-
dc.description.abstractn loquat (Eriobotrya japonica Lindl cv. Algerie) fruit, despite the non-climacteric ripening behaviour, evidence suggest that ethylene may participate in the regulation of several ripening- and postharvest-related processes. Color changes and carotenoid profile were analyzed in fruit at three developmental stages (breaker, yellow and colored fruits). At early stages, the fruit peel contained phytoene, phytofluene and other typical chloroplastic carotenoids that decreased during ripening, to accumulate β-carotene, violaxanthin and β-cryptoxanthin in mature fruits. In the pulp, carotenoid concentration increased during ripening to become predominant phytoene, followed by β-carotene and β-cryptoxanthin. Expression of the carotenoid biosynthetic genes (PSY, PDS, ZDS, CYCB and BCH) was downregulated in the peel during maturation, but increased in the pulp with the exception of BCH. The involvement of ethylene in the regulation of pigmentation was further evaluated by treating fruits at the three ripening stages with ethylene or its action inhibitor 1-MCP. At breaker fruit, ethylene accelerated and 1-MCP delayed fruit coloration, but the effect was progressively lost as fruit matured. Ethylene and 1-MCP produced different changes in carotenoids content and gene expression in peel and pulp. Application of ethylene enhanced β-carotene content in both tissues whereas β-cryptoxanthin was only stimulated in the pulp. 1-MCP suppressed these changes in carotenoid composition in the pulp but had little effect in the peel. A differential transcriptional level the pulp was more responsive to downregulated gene expression than the peel. Collectively, results indicate that: 1) ethylene is involved in the regulation of pigmentation and carotenoid biosynthesis in loquat fruits, 2) a differential regulation of carotenoid biosynthesis and response to ethylene appear to operate in the peel and the pulp, and 3) β-carotene hydroxylase (BCH) is a key step in the regulation of carotenoid content and composition in both tissues of loquat fruit.es_ES
dc.description.sponsorshipDr. E. Alos was recipient a post-doctoral contract JAE-Doc-CSIC (Fondo Social Europeo). The financial support of the research grants FP7-PEOPLE-2011-CIG-2011-303652 (Marie Curie Actions, European Union), AGL-2015-70218 (Ministerio Economía y Competitividad, Spain), GV/2012/036 (GeneralitatValenciana, Spain) and PROMETEO-II 2014/27 (Generalitat Valenciana) are gratefully acknowledged. MJR and LZ are members of Eurocaroten (COST_Action CA15136) and CaRed (Spanish Carotenoid Network, BIO2015-71703-REDT and BIO2017-90877-REDT).es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.relationMINECO/ICTI2013-2016/AGL-2015-70218es_ES
dc.relationMINECO/ICTI2013-2016/BIO2015-71703-REDTes_ES
dc.relationMICIU/ICTI2017-2020/BIO2017-90877-REDTes_ES
dc.relation.isversionofPostprintes_ES
dc.rightsembargoedAccesses_ES
dc.subjectEthylenees_ES
dc.subjectFruites_ES
dc.subjectCarotenoidses_ES
dc.subjectLoquates_ES
dc.subjectPhysiologyes_ES
dc.subjectPostharvest 1-MCPes_ES
dc.titleInvolvement of ethylene in color changes and carotenoid biosynthesis in loquat fruit (Eriobotrya japonica Lindl. cv. Algerie)es_ES
dc.typeartículoes_ES
dc.identifier.doi10.1016/j.postharvbio.2018.11.022-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttps://doi.org/10.1016/j.postharvbio.2018.11.022es_ES
dc.embargo.terms2019-12-06es_ES
dc.rights.licensehttp://creativecommons.org/licenses/by-nc-nd/4.0/es_ES
dc.contributor.funderMinisterio de Economía y Competitividad (España)es_ES
dc.contributor.funderGeneralitat Valencianaes_ES
dc.contributor.funderEuropean Commissiones_ES
dc.relation.csices_ES
oprm.item.hasRevisionno ko 0 false*
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003329es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003359es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
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