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Nitric oxide fumigation maintains cantaloupe fruit quality by regulating the production of reactive oxygen species

文献类型： 外文期刊

作者： Meng, Yukun 1 ; Dilixiati, Yilidana 2 ; Zhu, Xiaoyang 3 ; Shi, Wenjian 4 ; Wu, Bin 5 ; Wang, Jide 1 ; Wei, Jia 5 ;

作者机构： 1.Xinjiang Univ, Sch Chem Engn & Technol, Urumqi 830017, Peoples R China

2.Xinjiang Agr Univ, Coll Food Sci & Pharm, Urumqi 830052, Peoples R China

3.South China Agr Univ, Engn Res Ctr Postharvest Technol Hort Crops South, Guangdong Prov Key Lab Postharvest Sci Fruits & Ve, Minist Educ,Coll Hort, Guangzhou 510642, Peoples R China

4.Xinjiang Univ, Coll Life Sci & Technol, Urumqi 830017, Peoples R China

5.Proc Xinjiang Acad Agr Sci, Inst Commod Storage, Xinjiang Key Lab Fresh Proc Specialty Agr Prod, Urumqi 830091, Peoples R China

关键词： Nitric oxide; Postharvest cantaloupe; Storage quality; NOX/SOD system; Reactive oxygen species

期刊名称：SCIENTIA HORTICULTURAE （ 影响因子：4.2； 五年影响因子：4.6 ）

ISSN： 0304-4238

年卷期： 2024 年 338 卷

页码：

收录情况： SCI

摘要： Cantaloupe (Cucumis melo L.) is a major crop cultivated in Northwest China. However, with the extension of storage periods, cantaloupes are increasingly prone to post-ripening senescence, quality deterioration, rot, and other phenomena, which in turn seriously limit shelf life. During postharvest storage, the quality of cantaloupes is affected by a large increase in ROS in the fruit. Herein, the effects of exogenous NO fumigation treatment on the quality of Xizhoumi NO.17 cantaloupe were investigated, with a focus on ROS generation and removal. NO fumigation treatment effectively reduced the rate of cantaloupe decay, inhibited fruit water loss and better maintained fruit firmness and relative conductivity. NO treatment induced O2 & sdot;- and H2O2 production during early storage (within 24 h), whereas their accumulation decreased during later storage. NOX activity and expression of related genes in the treatment group were higher than those in the control group during the early storage but lower during later storage. NO fumigation also induced the antioxidant capacity of enzymatic and non-enzymatic systems in cantaloupe and helped to inhibit the accumulation of ROS. Taken together, NO fumigation triggers H2O2 production via the NOX/SOD system, activating the antioxidant response of cantaloupe to overcome excessive ROS production in the late stage of storage, thus maintaining fruit quality.

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