Sodium nitroprusside (SNP) treatment increases the postharvest resistance of apple fruit to Alternaria alternata by enhancing antioxidant enzyme activity
文献类型： 外文期刊
作者： Han, Jie 1 ; Fan, Yingying 1 ; Sun, Tao 1 ; An, Jing 1 ; Ding, Yu 6 ; Zhang, Weiwei 7 ; Liu, Fengjuan 1 ; Wang, Cheng 1 ;
作者机构： 1.Xinjiang Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Urumqi 830091, Peoples R China
2.Minist Agr & Rural Affairs, Key Lab Funct Nutr & Hlth Characterist Agr Prod De, Co construct Minist & Prov, Urumqi 830091, Peoples R China
3.Minist Agr & Rural Affairs, Lab Qual & Safety Risk Assessment Agroprod, Urumqi 830091, Peoples R China
4.Key Lab Agroprod Qual & Safety Xinjiang, Urumqi 830091, Peoples R China
5.Xinjiang Univ, Coll Life Sci & Technol, Urumqi 830017, Xinjiang, Peoples R China
6.Yili Normal Univ, Coll Biol & Geog Sci, Yining 835000, Xinjiang, Peoples R China
7.Tarim Univ, Sch Food Sci & Engn, Alaer 843300, Xinjiang, Peoples R China
关键词： Apple; Black spot disease; Storage quality; Disease resistance; Reactive oxygen species
期刊名称：PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY （ 影响因子：2.7； 五年影响因子：2.9 ）
ISSN： 0885-5765
年卷期： 2024 年 129 卷
页码：
收录情况： SCI
摘要： Black spot disease, caused by the fungal pathogen Alternaria alternata, commonly infects apple (Malus domestica) during postharvest storage and transportation, diminishing fruit quality, contaminating the fruit with toxins, and causing significant economic losses. Here, we investigated the effect of 0.1 mmol L-1 sodium nitroprusside (SNP), a nitric oxide donor, on lesion diameter, fruit quality, and reactive oxygen species (ROS) metabolism in A. alternata-inoculated apples. SNP not only effectively decreased lesion diameter but also maintained fruit quality and cell membrane integrity. Additionally, SNP enhanced antioxidant enzyme activity and genes encoding of peroxidase (POD), glutathione reductase (GR), superoxide dismutase (SOD), ascorbate peroxidase (APX), and catalase (CAT), and decreased hydrogen peroxide (H2O2) and superoxide anion (O-2(center dot-)) production, malondialdehyde (MDA) concentration, and membrane permeability. Collectively, these results demonstrate that SNP inhibits ROS accumulation and increases antioxidant enzyme activity, and that the mechanism of SNP-induced resistance is related to the regulation of ROS metabolism.
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