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Journal of Integrative Agriculture  2021, Vol. 20 Issue (11): 3075-3083    DOI: 10.1016/S2095-3119(21)63611-0
Special Issue: 食品科学合辑Food Science
Food Science Advanced Online Publication | Current Issue | Archive | Adv Search |
Application of methyl jasmonate postharvest maintains the quality of Nanguo pears by regulating mitochondrial energy metabolism
LI Can-ying*, CHENG Yuan*, HOU Jia-bao, ZHU Jie, SUN Lei, GE Yong-hong 
College of Food Science and Technology/National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Bohai University, Jinzhou 121013, P.R.China
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The present study was conducted to investigate the effects of methyl jasmonate (MeJA) dipping treatment on mitochondrial energy metabolism and quality parameters of Nanguo pears during room temperature storage.  The results showed that MeJA treatment suppressed the respiration rate and weight loss, and maintained the flesh firmness of Nanguo pears.  MeJA also effectively maintained the content of ascorbic acid and titratable acidity in the fruit.  Furthermore, the activities of H+-ATPase, Ca2+-ATPase, succinate dehydrogenase (SDH) and cytochrome C oxidase (CCO) of the MeJA-treated fruit were significantly higher than those of the untreated fruit.  The contents of adenosine triphosphate (ATP) and adenosine diphosphate (ADP) and the energy charge were also enhanced by MeJA treatment.  These results suggest that postharvest MeJA treatment could maintain the quality of Nanguo pears, in part by modulating mitochondrial energy metabolism during room temperature storage.
Keywords:  Pyrus ussuriensis        energy metabolism        methyl jasmonate        respiration rate  
Received: 15 June 2020   Accepted:
Fund: This study was supported by the National Natural Science Foundation of China (31801595) and the First-class Discipline Project of Liaoning Province, China (LNSPXKBD2020205).
Corresponding Authors:  Correspondence GE Yong-hong, E-mail:    
About author:  * These authors contributed equally to this study.

Cite this article: 

LI Can-ying, CHENG Yuan, HOU Jia-bao, ZHU Jie, SUN Lei, GE Yong-hong. 2021. Application of methyl jasmonate postharvest maintains the quality of Nanguo pears by regulating mitochondrial energy metabolism. Journal of Integrative Agriculture, 20(11): 3075-3083.

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