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Enhancing antioxidant systems by preharvest treatments with methyl jasmonate and salicylic acid leads to maintain lemon quality during cold storage
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Title: Enhancing antioxidant systems by preharvest treatments with methyl jasmonate and salicylic acid leads to maintain lemon quality during cold storage |
Authors: García Martínez, Santiago  Serna Escolano, Vicente  Martínez-Romero, Domingo  Giménez Torres, María José Serrano Mula, María Valero, Daniel  Valverde, Juan Manuel  Zapata, Pedro J  |
Editor: Elsevier |
Department: Departamentos de la UMH::Biología Aplicada |
Issue Date: 2020-09 |
URI: https://hdl.handle.net/11000/35973 |
Abstract:
The effects of preharvest treatments with 0.1 mM methyl jasmonate (MeJA) and 0.5 mM salicylic acid (SA) on
quality parameters of lemon fruit and their relationship with antioxidant systems, gene expression and bioactive
compounds at harvest and during cold storage were evaluated. Results showed that total antioxidant activity,
total phenolic content and the major individual phenolics (hesperidin and eriocitrin) were always higher in
treated fruit than in controls. The activity of the antioxidant enzymes catalase, peroxidase and ascorbate per-
oxidase was also increased at harvest by SA and MeJA treatments, especially the last enzyme, for which the
expression of its codifying gene was also enhanced. In addition, treated fruit had lower weight and firmness
losses, respiration rate and production of ethylene than controls. Moreover, sugars and organic acids were
maintained at higher concentration in flavedo and juice as a consequence of preharvest SA and MeJA treatments,
showing an effect on maintaining fruit quality properties.
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Keywords/Subjects: Citrus limon, L. Ascorbate peroxidase Phenolics Postharvest Sugars Organic acids APX gene expression |
Type of document: info:eu-repo/semantics/article |
Access rights: info:eu-repo/semantics/closedAccess Attribution-NonCommercial-NoDerivatives 4.0 Internacional |
DOI: https://doi.org/10.1016/j.foodchem.2020.128044 |
Appears in Collections: Artículos Biología Aplicada
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