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Resumen
The use of modified atmospheres has been successfully applied in different fruits to delay the ripening process and to prevent physiological disorders. In addition, during normal ripening, hypoxic areas are generated inside the fruit; moreover, anaerobic conditions may also arise during fruit post-harvest storage and handling. In consequence, the fruit is an interesting model to analyze the metabolic modifications due to changes in oxygen levels. In this [ver mas...]
dc.contributor.authorLara, María Valeria
dc.contributor.authorBudde, Claudio Olaf
dc.contributor.authorPorrini, Lucía
dc.contributor.authorBorsani, Julia
dc.contributor.authorMurray, Ricardo Ernesto
dc.contributor.authorAndreo, Carlos Santiago
dc.contributor.authorDrincovich, María Fabiana
dc.date.accessioned2019-12-09T15:35:07Z
dc.date.available2019-12-09T15:35:07Z
dc.date.issued2011-02
dc.identifier.issn0032-0781
dc.identifier.issn1471-9053
dc.identifier.otherhttps://doi.org/10.1093/pcp/pcq200
dc.identifier.urihttps://academic.oup.com/pcp/article/52/2/392/1906254
dc.identifier.urihttp://hdl.handle.net/20.500.12123/6476
dc.description.abstractThe use of modified atmospheres has been successfully applied in different fruits to delay the ripening process and to prevent physiological disorders. In addition, during normal ripening, hypoxic areas are generated inside the fruit; moreover, anaerobic conditions may also arise during fruit post-harvest storage and handling. In consequence, the fruit is an interesting model to analyze the metabolic modifications due to changes in oxygen levels. In this work, a 72 h anoxic treatment by using an N2 storage atmosphere was applied to peaches (Prunus persica L. Batsch) after harvest. Ripening was effectively delayed in treated fruits, preventing fruit softening, color changes and ethylene production. Metabolic changes induced by anoxia included induction of fermentative pathways, glycolysis and enzymes involved in both sucrose synthesis and degradation. Sucrose, fructose and glucose contents remained unchanged in treated fruit, probably due to sucrose cycling. Sorbitol was not consumed and citrate was increased, correlating with citric acid cycle impairment due to O2 deprivation. Malate content was not affected, indicating compensation in the reactions producing and consuming malate. Changes in malic enzymes and pyruvate orthophosphate dikinase may provide pyruvate for fermentation or even act to regenerate NADP. After fruit transfer to aerobic conditions, no signs of post-anoxia injury were observed and metabolic changes were reversed, with the exception of acetaldehyde levels. The results obtained indicate that peach fruit is an organ with a high capacity for anoxic tolerance, which is in accord with the presence of hypoxic areas inside fruits and the fact that hypoxic pre-treatment improves tolerance to subsequent anoxia.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherOxford Academic Presses_AR
dc.rightsinfo:eu-repo/semantics/openAccesses_AR
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.sourcePlant and Cell Physiology 52 (2) : 392–403 (February 2011)es_AR
dc.subjectDuraznoes_AR
dc.subjectPeacheseng
dc.subjectPrunus Persicaes_AR
dc.subjectAnoxiaes_AR
dc.subjectMaduramientoes_AR
dc.subjectRipeningeng
dc.subjectEnzimases_AR
dc.subjectEnzymeseng
dc.subject.otherDeficiencia de Oxígenoes_AR
dc.titlePeach (Prunus Persica) Fruit Response to Anoxia: Reversible Ripening Delay and Biochemical Changeses_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.rights.licenseCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.description.origenEEA San Pedroes_AR
dc.description.filFil: Lara, María Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Tecnológico de Rosario. Centro de Estudios Fotosintéticos y Bioquímicos; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas; Argentinaes_AR
dc.description.filFil: Budde, Claudio Olaf. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria San Pedro; Argentinaes_AR
dc.description.filFil: Porrini, Lucía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Tecnológico de Rosario. Centro de Estudios Fotosintéticos y Bioquímicos; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas; Argentinaes_AR
dc.description.filFil: Bosani, Julia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Tecnológico de Rosario. Centro de Estudios Fotosintéticos y Bioquímicos; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas; Argentinaes_AR
dc.description.filFil: Murray, Ricardo Ernesto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria San Pedro; Argentinaes_AR
dc.description.filFil: Andreo, Carlos Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Tecnológico de Rosario. Centro de Estudios Fotosintéticos y Bioquímicos; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas; Argentinaes_AR
dc.description.filFil: Drincovich, María Fabiana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Tecnológico de Rosario. Centro de Estudios Fotosintéticos y Bioquímicos; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas; Argentinaes_AR
dc.subtypecientifico


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