Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14279/3212
Title: Cell wall modifications and ethylene-induced tolerance to non-chilling peel pitting in citrus fruit
Authors: Vicente, Ariel Roberto 
Minas, Ioannis S. 
Goulas, Vlasios 
Lafuente, María T. 
Manganaris, George A. 
Major Field of Science: Agricultural Sciences
Field Category: Agricultural Biotechnology
Keywords: Albedo;Alcohol insoluble residue;Ethylene conditioning;Flavedo;Pectin;Physiological disorder
Issue Date: Sep-2013
Source: Plant Science, 2013, vol. 210, pp. 46-52.
Volume: 210
Start page: 46
End page: 52
Link: http://www.sciencedirect.com/science/article/pii/S0168945213001015
Journal: Plant Science 
Abstract: Non-chilling peel pitting (NCPP), a storage disorder resulting in the formation of depressed areas in the peel of many citrus cultivars, is reduced by ethylene treatments. We hypothesized that this effect may be associated with biochemical changes of cell wall components. Therefore, we extracted cell wall material from albedo and flavedo tissues of ‘Navelate’ oranges stored in air, conditioned with ethylene (2 μL L−1) for 4 days and subsequently transferred to air, or continuously stored in an ethylene-enriched atmosphere (2 μL L−1). Uronic acids and neutral sugars were extracted into five fractions enriched in specific wall polymers namely water-, CDTA-, Na2CO3-, and 1 and 4 M KOH-soluble fractions. Pectin insolubilization was found in control fruit at long storage times. Ethylene treatments, alleviating NCPP, increased polyuronide solubility in the albedo and had a slight effect on the flavedo. Ethylene-treated fruit showed greater content of water-soluble neutral sugars and a larger proportion of hemicelluloses readily extractable with 1 M KOH, with a concomitant reduction in the 4 M KOH-soluble fraction. This suggests that the protective role of ethylene on NCPP is associated with an increased solubilization of the wall of albedo cells.
URI: https://hdl.handle.net/20.500.14279/3212
ISSN: 01689452
DOI: 10.1016/j.plantsci.2013.05.001
Rights: © Elsevier
Type: Article
Affiliation : Cyprus University of Technology 
Universidad Nacional de La Plata 
Consejo Nacional de Investigaciones Científicas y Técnicas 
Universidad Nacional de La Plata 
Publication Type: Peer Reviewed
Appears in Collections:Άρθρα/Articles

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