Nitric oxide maintains postharvest quality of navel orange fruit by reducing postharvest rotting during cold storage and enhancing antioxidant activity

被引：32

作者：

Zhu, Liqin ^{[1
,2
,3
]}

Yang, Rui ^{[1
]}

Sun, Ying ^{[1
]}

Zhang, Fengying ^{[1
]}

Du, Huaying ^{[1
]}

Zhang, Wei ^{[1
]}

Wan, Chunpeng ^{[2
,3
]}

Chen, Jinyin ^{[2
,3
,4
]}

机构：

[1] Jiangxi Agr Univ, Coll Food Sci & Technol, Nanchang 330045, Jiangxi, Peoples R China

[2] Jiangxi Agr Univ Nanchang, Collaborat Innovat Ctr Postharvest Key Technol &, Jiangxi Key Lab Postharvest Technol & Nondestruct, Nanchang 330045, Jiangxi, Peoples R China

[3] Jiangxi Agr Univ, Coll Agron, Nanchang 330045, Jiangxi, Peoples R China

[4] Pingxiang Univ, Coll Mat & Chem Engn, Pingxiang 337055, Jiangxi, Peoples R China

来源：

PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY | 2021年 / 113卷

关键词：

Nitric oxide; Citrus fruit; Fruit quality; Rot; Antioxidant system;

D O I：

10.1016/j.pmpp.2020.101589

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Current study aimed to evaluate the effects of fumigation with 15 mu I L-1 nitric oxide (NO) on the quality of 'Newhall' navel orange fruit during storage at 5 degrees C. Fruits quality parameters, decay rate, antioxidant capacity, antioxidant enzymes activities and disease resistance related enzymes activities were evaluated. NO treatment significantly inhibited the increasing weight loss, maintained soluble solid content (SSC), titratable acid (TA) and vitamin C (VC) contents (P<0.05). Furthermore, NO treatment significantly decreased the respiration rate, suppressed superoxide anion (OA and hydrogen peroxide (H2O2) generation (P<0.05). Antioxidant capacity, superoxide dismutase (SOD), catalase (CAT) and pemxidase (POD) activities in NO-treated navel oranges were significantly higher than controls (P<0.05). Moreover, exogenous NO significantly enhanced the activities of phenylalanine ammonia-lyase (PAL), polyphenoloxidase (PPO), beta-1,3-glucanase (GLU) and chitinase (CHT) (P<0.05). Application of NO would be a promising method in maintaining the quality of postharvest navel orange in the future.

引用

页数：6

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