Methyl jasmonate delays postharvest ripening and senescence in the non-climacteric eggplant (Solanum melongena L.) fruit

文献类型： 外文期刊

第一作者： Fan, Linlin

作者： Fan, Linlin;Shi, Junyan;Zuo, Jinhua;Gao, Lipu;Lv, Jiayu;Wang, Qing

作者机构：

关键词： Ethylene production;Calyx browning;Gene expression;Polyphenol oxidase;Anthocyanin

期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：5.537； 五年影响因子：5.821 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： Physiological disorders in harvested eggplant (Solanum melongena L.) fruit result in quality deterioration, short postharvest life and significant economic losses. In this study, the effects of methyl jasmonate (MeJA) on senescence in eggplant fruit were investigated. The results indicated that, compared to control, MeJA at 5 mu M depressed ethylene production and effectively delayed fruit senescence. MeJA treatment was beneficial for maintaining fruit quality during storage, inhibiting increase of the calyx browning and weight loss, and retarding decline of sensorial quality, firmness and the anthocyanin content in peel. Moreover, MeJA effectively reduced the total phenolics content and the activity of the polyphenol oxidase (PPO) in calyx and pulp. MeJA also inhibited relative gene expression of PPO in pulp. The activities and gene expression of peroxidase and catalase were significantly induced by MeJA treatment. These findings indicate that the delayed senescence in eggplant fruit by MeJA is related with the decrease of enzymes associated with phenolics metabolism and antioxidant system. Our results suggest that MeJA has potential effect on maintaining the quality and extending postharvest life of eggplant fruit. (C) 2016 Elsevier B.V. All rights reserved.

分类号： S3

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