Abstract
Bananas are economically important fruits, but they are vulnerable to mechanical damage during harvesting and transport. This study examined the effects of methyl jasmonate (MeJA) on the cell membrane integrity and membrane lipid metabolism of wounded banana fruits after harvest. The results showed that 10 and 50 μM MeJA treatments on mechanically wounded bananas significantly delayed ripening and senescence in comparison with the control. At the end of storage, MeJA-treated groups showed a significant reduction in electrolyte leakage and malondialdehyde content, indicating that MeJA protected cell membrane integrity. MeJA also led to a significant decrease in the activity of antioxidant enzymes, including lipoxygenase, diacylglycerol kinase, and lipid phosphate phosphatase. Furthermore, MeJA reduced phospholipase (C and D), phosphatidic acid, and diacylglycerol levels, as well as slowed down the decrease in phosphatidylcholine and phosphatidylinositol contents. Compared to the control, MeJA significantly downregulated the expression of MaPLDγ, MaPLDα, and MaPLDζ. Therefore, MeJA treatment could be a reliable method to delay the senescence of harvested banana fruits subjected to mechanical wounding.
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MDPI and ACS Style
Huang, C.; Yi, P.; Li, J.; Xie, L.; Huang, F.; Huang, M.; Gan, T.; Sun, J.; Li, L.
Exogenous Methyl Jasmonate Alleviates Mechanical Damage in Banana Fruit by Regulating Membrane Lipid Metabolism. Foods 2024, 13, 3132.
https://doi.org/10.3390/foods13193132
AMA Style
Huang C, Yi P, Li J, Xie L, Huang F, Huang M, Gan T, Sun J, Li L.
Exogenous Methyl Jasmonate Alleviates Mechanical Damage in Banana Fruit by Regulating Membrane Lipid Metabolism. Foods. 2024; 13(19):3132.
https://doi.org/10.3390/foods13193132
Chicago/Turabian Style
Huang, Chunxia, Ping Yi, Jing Li, Lihong Xie, Fang Huang, Min Huang, Ting Gan, Jian Sun, and Li Li.
2024. "Exogenous Methyl Jasmonate Alleviates Mechanical Damage in Banana Fruit by Regulating Membrane Lipid Metabolism" Foods 13, no. 19: 3132.
https://doi.org/10.3390/foods13193132
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