文献类型: 外文期刊
作者: Hu, Huali 1 ; Zhao, Suping 2 ; Li, Pengxia 2 ; Shen, Wenbiao 1 ;
作者机构: 1.Nanjing Agr Univ, Coll Life Sci, Lab Ctr Life Sci, Nanjing 210095, Jiangsu, Peoples R China
2.Jiangsu Acad Agr Sci, Inst Agr Prod Proc, Nanjing 210014, Jiangsu, Peoples R China
3.Jiangsu Acad Agr Sci, Engn Lab Hort Prod Postharvest Treatment, Nanjing 210014, Jiangsu, Peoples R China
关键词: Kiwifruit;Hydrogen gas;Ethylene;Storage;Ripening;Disease incidence
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: 2018 年 135 卷
页码:
收录情况: SCI
摘要: The application of hydrogen-rich water was recently shown to inhibit senescence process of kiwifruit, but it is unclear if hydrogen gas (H-2) exerts a similar function. The present results show that the production of endogenous H-2 in kiwifruit decreases during ripening. Fumigation with H-2 not only increased endogenous H-2 concentrations but delayed the softening and cell wall disassembly in flesh. Ethylene (C2H4) production was also inhibited by H-2, which was supported by a decrease in 1-aminocyclopropene-1-carboxylate (ACC) concentration, ACC synthase, and ACC oxidase activities, and the downregulation of the corresponding gene transcripts. Further, ACC-induced C2H4 production and ripening were blocked by H-2 and the incidence of natural decay and disease incidence were reduced. Overall, the results suggested that the H-2-induced delay of kiwifruit ripening resulted from an inhibitory effect on C2H4 biosynthesis.
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