Up-Regulation of plant defense genes in harvested mango using electron beam irradiation
Journal article
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Author list: Nguyen, Truc Trung; Kato, Masaya; Ma, Gang; Zhang, Lancui; Uthairatanakij, Apiradee; Srilaong, Varit; Laohakunjit, Natta; Jitareerat, Pongphen;
Publication year: 2021
Volume number: 55
Issue number: 6
Start page: 1086
End page: 1092
Number of pages: 7
ISSN: 24681458
Languages: English-Great Britain (EN-GB)
Abstract
Postharvest disease is a major problem in harvested mango fruit, affecting both quantity and quality during storage. Electron beam (E-beam) irradiation is a new approach that enhances plant disease resistance and controls postharvest disease development. This study investigated the effect of pre-treatment with E-beam irradiation on disease development and defense genes expression in mango fruit during cold storage. Mango fruit samples cv. ‘Nam Dok Mai Si Thong’ were pre-treated with an E-beam at a dose of 0 (control) or 0.5 kGy and then stored at 13°C for 16 d. The results at 16 d showed significant reductions in the postharvest disease (anthracnose) incidence of the E-beam treated fruit by 2.0-fold relative to the control (100% and 50% in the control and the E-beam treated group, respectively). Disease severity was also reduced by 3.7-fold (score 2.05 for the control and 0.56 for the treated group). The E-beam treatment up-regulated the expression of plant defense genes, such as MiPOD, MiGLU, MiPAL and MiCHI, in both the peel and the pulp. This suggested that pre-treatment with E-beam irradiation is promising to enhance postharvest disease resistance, which would help to extend the shelf life of mango fruit during cold storage. online 2452-316X print 2468-1458/Copyright © 2021. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/), production and hosting by Kasetsart University of Research and Development Institute on behalf of Kasetsart University.
Keywords
Pathogenesis-related proteins, Plant defense genes
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