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Nitric oxide treatment maintains postharvest quality of table grapes by mitigation of oxidative damage

文献类型： 外文期刊

作者： Zhang, Zheng 1 ; Xu, Jing 1 ; Chen, Yan 2 ; Wei, Jia 1 ; Wu, Bin 1 ;

作者机构： 1.Xinjiang Acad Agr Sci, Inst Commod Storage & Proc, Urumqi 830091, Xinjiang, Peoples R China

2.Xinjiang Univ, Coll Chem & Chem Engn, Urumqi 830046, Xinjiang, Peoples R China

关键词： Table grape; Nitric oxide; Oxidative damage

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

ISSN： 0925-5214

年卷期： 2019 年 152 卷

页码：

收录情况： SCI

摘要： The senescence of table grape is closely related to reactive oxygen species (ROS) damage. In this study, the mechanism of NO on mitigating the oxidative damage of table grape (Vitis vinifera L.) during storage at 0 degrees C for 60 days was explored by quality, antioxidant enzyme activity and related gene expression. Our result showed that fruit quality was maintained by NO with the concentration of 300 mu L L-1. NO treatment alleviated ROS accumulation and membrane lipid peroxidation by activated superoxide dismutase (SOD), ascorbic acid peroxidase (APX), catalase (CAT), peroxidase (POD) and glutathione reductase (GR) activities in peel and pulp. The accumulation of superoxide anion (O-2(center dot-)) and hydrogen peroxide (H2O2), as well as the activities of some antioxidant enzymes were different in peel and pulp. The results of q-PCR showed that NO treatment induced VvSOD, VvCAT, VvPOD2 and VvGR expression and VvSOD and VvCAT were the main genes expressed in peel and pulp. Therefore, NO regulated the ROS metabolism in peel and pulp was a possible mechanism for mitigating the oxidative damage of table grape.

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