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dc.contributor.authorBurón Moles, Gemma
dc.contributor.authorTorres Sanchis, Rosario
dc.contributor.authorTeixidó i Espasa, Neus
dc.contributor.authorUsall i Rodié, Josep
dc.contributor.authorVilanova, Laura
dc.contributor.authorViñas Almenar, Inmaculada
dc.date.accessioned2015-06-02T13:50:59Z
dc.date.issued2015
dc.identifier.issn0925-5214
dc.identifier.urihttp://hdl.handle.net/10459.1/48289
dc.description.abstractPenicillium digitatum and Penicillium expansum are the main postharvest pathogens of orange and applefruit, respectively. These wound pathogens can infect through injuries caused during harvest and posthar-vest handling, which lead to large economic losses. Susceptibility of fruit to mechanical damage orinfection increases during ripening. However, few studies have been focussed on the fruit wound-induceddefence responses, such as H2O2production. In this study, the characterisation of H2O2production inorange (C. sinensis cv Valencia) and apple (M. domestica L. cv Golden Smoothee) fruit in response toabiotic (wounding) and biotic (pathogen and non-host pathogen) stresses at different maturity stageswas investigated. The effect of H2O2on the ecophysiology of P. digitatum and P. expansum at differenttemperatures was also studied. The potential antifungal effect of H2O2in both pathogens depends onthe temperature. P. expansum was more susceptible to higher levels of H2O2than P. digitatum, espe-cially at 25◦C. The lesion diameter in compatible interactions increased significantly with fruit maturityin apples and oranges. Fruit maturity also increased susceptibility to non-host pathogen interactions,especially reducing apple resistance to P. digitatum in the over-mature stage. H2O2production showeddifferent patterns depending on the fruit. In apples, the higher resistance of immature harvested fruit topathogen infection correlated with an increase in H2O2production (biphasic oxidative burst), whereasin oranges, immature and commercial harvests exhibited a similar pattern of H2O2production amongtreatments. Production of H2O2in oranges and apples following abiotic (wounding) and biotic (pathogenand non-host pathogen) stresses depended on the harvest date.
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherElsevier
dc.relation.isformatofReproducció del document publicat a: https://doi.org/10.1016/j.postharvbio.2014.07.013
dc.relation.ispartofPostharvest Biology and Technology, 2015, núm. 99, p. 27-36
dc.rights(c) Elsevier, 2015
dc.subjectEcophysiology
dc.subjectPenicillium digitatum
dc.subjectpenicillium expansum
dc.subjecthydrogen peroxide
dc.subjectwounding
dc.subject.classificationTaronges
dc.subject.classificationPomes
dc.subject.classificationFisiologia postcollita
dc.subject.classificationMicosi vegetal
dc.subject.classificationPenicil·lina
dc.subject.otherOranges
dc.subject.otherApples
dc.subject.otherPostharvest physiology
dc.subject.otherFungal diseases of plants
dc.subject.otherPenicillin
dc.titleCharacterisation of H2O2 production to study compatible and non-host pathogen interactions in orange and apple fruit at different maturity stages.
dc.typeinfo:eu-repo/semantics/article
dc.date.updated2015-06-02T13:50:59Z
dc.identifier.idgrec022620
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccess
dc.identifier.doihttps://doi.org/10.1016/j.postharvbio.2014.07.013
dc.date.embargoEndDate2025-01-01


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