Refrigerated storage and calcium dips of ripe 'Celeste' sweet cherryfruit: combined effects on cell wall metabolism
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Ripening-related firmness loss shortens considerably the storage potential of sweet cherry (Prunus avium L.), thus limiting postharvest handling, transportation, and commercialisation. The biochemical mechanisms underlying this process in cherries are not fully understood, and the mechanisms operating
in a given fruit may be not extrapolated to a different species. Cell wall materials obtained from untreated and calcium-treated 'Celeste' sweet cherries were fractionated and analysed after cold storage, and related enzyme activities and gene expression were assessed. Calcium-treated fruit were firmer, with lower weight loss and decay incidence than the controls. The accumulation of PaβGal and PaEXP1 transcripts was strongly inhibited in cold-stored fruit, although expression levels recovered largely after three days of shelf life. Data suggest that pectin methylesterase, β-galactosidase and expansin activities may control the access of additional proteins to their substrates. A possible role for the apoplastic redox status in the modulation of the process is also discussed
Is part ofScientia Horticulturae, 2017, vol. 219, p. 182-190
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Characterization of cuticle composition after cold storage of "Celeste" and "Somerset" sweet cherry fruit Belge, Burcu; Llovera i Arcas, Montserrat; Comabella, Eva; Gatius Cortiella, Ferran; Guillén, Pere; Graell i Sarle, Jordi; Lara Ayala, Isabel (American Chemical Society, 2014-08-04)Cuticle composition and structure may be relevant factors affecting the storage potential of fruits, but very few studies have analyzed fruit cuticle composition from a postharvest perspective. In this work, the chemical ...
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