Hydrogen sulfide delays postharvest ripening of white fleshed strawberry by regulating phytohormone accumulation and ROS generation
文献类型： 外文期刊
作者： Sun, Miao 1 ; Yang, Tao 1 ; Qiao, Xuan-Huan 1 ; Zhao, Peng 1 ; Zhu, Zhi-Peng 1 ; Su, Kai-Yue 1 ; Sun, Chuan-Wen 3 ; Xie, Zhao-Biao 3 ; Zhang, Shu-Song 1 ; Xu, Meng 1 ; Xu, Lin-Lin 4 ; Xiong, Ai-Sheng 2 ;
作者机构： 1.Yancheng Teachers Univ, Coll Marine & Biol Engn, Yancheng 224002, Jiangsu, Peoples R China
2.Nanjing Agr Univ, Coll Hort, State Key Lab Crop Genet & Germplasm Enhancement, Nanjing 210095, Jiangsu, Peoples R China
3.Yancheng Inst Technol, Sch Unigraph, Yancheng 224002, Jiangsu, Peoples R China
4.Jiangsu Acad Agr Sci, Nanjing 210095, Jiangsu, Peoples R China
关键词： White fleshed strawberry; Hydrogen sulfide; Postharvest ripening; Phytohormone; Reactive oxygen species; Postharvest quality
期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：7.0； 五年影响因子：6.9 ）
ISSN： 0925-5214
年卷期： 2023 年 205 卷
页码：
收录情况： SCI
摘要： The white fleshed strawberry cultivar 'Snow Princess' ofFragaria ananassa, known for its unique flavor and visual appeal, is highly regarded worldwide. However, the inherent presence of endogenous phytohormones and reactive oxygen species accelerate the postharvest ripening process, leading to a shorter shelf life. Despite extensive research on the ability of hydrogen sulfide (H2S) to delay fruit ripening and senescence, its potential application to white fleshed strawberries remains unexplored. In this study, the effects of sodium hydrosulfide (NaHS) and hypotaurine on regulating postharvest ripening in white-fleshed strawberries (cv. 'Snow Princess') were evaluated. The findings revealed that NaHS treatment delayed weight loss, preserved sensory character-istics, and decreased the decay index, with an optimal NaHS concentration of 1.5 mM. Further research indicated that H2S synthesis gene expression was enhanced, and H2S synthesis enzyme activity was increased in the NaHS treatment group, leading to endogenous H2S accumulation. Furthermore, NaHS treatment repressed ethylene production and reduced respiratory rate. Concurrently, NaHS treatment increased alternative oxidase activity and decreased abscisic acid level, resulting in inhibited hydrogen peroxide and malondialdehyde generation. Ultimately, NaHS treatment delayed postharvest ripening of 'Snow Princess' strawberries, resulting in increased levels of total soluble solids, titratable acid, and total flavonoid. These findings underscore the potential of NaHS for prolonging the shelf life of white fleshed strawberries and offer insight into the role of H2S in postharvest strawberries.
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