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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Claims 7
Claim · model-written summary
10 and 50 μM MeJA on mechanically wounded bananas significantly delayed ripening and senescence compared with the control.
Verbatim
e0“10 and 50 μM MeJA treatments on mechanically wounded bananas significantly delayed ripening and senescence in comparison with the control”
Claim · model-written summary
MeJA-treated wounded bananas showed significantly reduced electrolyte leakage and malondialdehyde content at the end of storage.
- Taxon
- Bananat0
- Treatment
- MeJAe0
- Outcome
- electrolyte leakage and malondialdehyde contente0
- Direction
- reductione0
Not reportedComparator
Verbatim
t0“Banana”
e0“MeJA-treated groups showed a significant reduction in electrolyte leakage and malondialdehyde content”
Claim · model-written summary
MeJA significantly decreased the activity of lipoxygenase, diacylglycerol kinase and lipid phosphate phosphatase.
- Taxon
- Bananat0
- Treatment
- MeJAe0
- Outcome
- activity of antioxidant enzymes, including lipoxygenase, diacylglycerol kinase, and lipid phosphate phosphatasee0
- Direction
- decreasee0
Not reportedComparator
Verbatim
t0“Banana”
e0“MeJA also led to a significant decrease in the activity of antioxidant enzymes, including lipoxygenase, diacylglycerol kinase, and lipid phosphate phosphatase”
Claim · model-written summary
MeJA reduced phospholipase (C and D), phosphatidic acid and diacylglycerol levels.
- Taxon
- Bananat0
- Treatment
- MeJAe0
- Outcome
- phospholipase (C and D), phosphatidic acid, and diacylglycerol levelse0
- Direction
- reducede0
Not reportedComparator
Verbatim
t0“Banana”
e0“MeJA reduced phospholipase (C and D), phosphatidic acid, and diacylglycerol levels”
Claim · model-written summary
MeJA slowed the decrease in phosphatidylcholine and phosphatidylinositol contents.
- Taxon
- Bananat0
- Treatment
- MeJAe1
- Outcome
- phosphatidylcholine and phosphatidylinositol contentse1
- Direction
- slowed down the decreasee1
Not reportedComparator
Verbatim
t0“Banana”
e1“MeJA reduced phospholipase (C and D), phosphatidic acid, and diacylglycerol levels, as well as slowed down the decrease in phosphatidylcholine and phosphatidylinositol contents”
Claim · model-written summary
MeJA significantly downregulated expression of MaPLDγ, MaPLDα and MaPLDζ compared with the control.
- Taxon
- Bananat0
- Treatment
- MeJAe0
- Gene
- MaPLDγ, MaPLDα, and MaPLDζe0
- Outcome
- expressione0
- Direction
- downregulatede0
Not reportedComparator
Verbatim
t0“Banana”
e0“MeJA significantly downregulated the expression of MaPLDγ, MaPLDα, and MaPLDζ”
Claim · model-written summary
The authors conclude MeJA treatment could be a reliable method to delay senescence of harvested, mechanically wounded banana fruits.
Verbatim
e0“MeJA treatment could be a reliable method to delay the senescence of harvested banana fruits subjected to mechanical wounding”
The same questions in other papers
(-)-methyl jasmonate · quality: postharvest · MusaResults agree
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- positive
- positive
(-)-methyl jasmonate · physiology: oxidative · MusaResults agree
2 papers in the same direction as this paper
- positive
- positive
(-)-methyl jasmonate · molecular: metabolites · MusaResults agree
2 papers in the same direction as this paper
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.