Abstract
The susceptibility of harvested mango fruit to chilling injury (CI) restricts quality preservation. Cell membranes are recognized as primary sites of damage in fruits in response to cold stress , and the maintenance of membrane integrity and function is conducive to alleviating fruit CI. This study aimed to investigate the effects of melatonin (MT), an important bioactive molecule , on cold tolerance in relation to membrane lipid homeostasis in ‘Guifei’ mango fruit during refrigeration. The results showed that application of 0.5 mmol L −1 MT to mango fruit reduced the CI index, discoloration, relative electrolyte leakage (REL) and malondialdehyde (MDA) content while maintaining a higher Fv / Fm value. Reduced activities of phospholipase D (PLD), phospholipase C (PLC) and lipoxygenase (LOX) but increased phospholipase A 2 (PLA 2 ) activity were observed in MT-treated fruit compared to control fruit. Furthermore, lipidomic analysis revealed changes in molecular species profiles of various classes of lipids (phospholipids, lysophospholipids , sphingolipids and glycerides) in response to MT. These results indicate that MT could trigger remodeling of lipid molecules by regulating membrane lipid metabolism , which would be conducive to maintaining membrane structure and activating downstream signaling pathways , contributing to improved cold tolerance in mango fruit.
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Claims 6
Claim · model-written summary
Melatonin reduced chilling injury index, discoloration, electrolyte leakage, and malondialdehyde content in mango fruit.
- Taxon
- mango fruit
_from_India.jpg?width=60)
Mangifera indicae0 - Material
- ‘Guifei’e1
- Treatment
- 0.5 mmol L −1 MTe0
- Outcome
- CI index, discoloration, relative electrolyte leakage (REL) and malondialdehyde (MDA) contente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_from_India.jpg?width=500)
Verbatim
e0“application of 0.5 mmol L −1 MT to mango fruit reduced the CI index, discoloration, relative electrolyte leakage (REL) and malondialdehyde (MDA) content”
e1“‘Guifei’ mango fruit during refrigeration”
Claim · model-written summary
Melatonin maintained a higher Fv / Fm value in mango fruit.
- Taxon
- mango fruitMangifera indicae1
- Treatment
- 0.5 mmol L −1 MTe1
- Outcome
- Fv / Fm valuee0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while maintaining a higher Fv / Fm value”
e1“application of 0.5 mmol L −1 MT to mango fruit reduced the CI index”
Claim · model-written summary
Melatonin-treated mango fruit had reduced PLD, PLC, and LOX activities relative to controls.
- Taxon
- mango fruitMangifera indicae1
- Treatment
- MT-treated fruite0
- Outcome
- activities of phospholipase D (PLD), phospholipase C (PLC) and lipoxygenase (LOX)e0
- Direction
- Reducede0
- Comparator
- control fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reduced activities of phospholipase D (PLD), phospholipase C (PLC) and lipoxygenase (LOX) but increased phospholipase A 2 (PLA 2 ) activity were observed in MT-treated fruit compared to control fruit”
e1“mango fruit during refrigeration”
Claim · model-written summary
Melatonin-treated mango fruit had increased PLA 2 activity relative to controls.
- Taxon
- mango fruitMangifera indicae1
- Treatment
- MT-treated fruite0
- Outcome
- phospholipase A 2 (PLA 2 ) activitye0
- Direction
- increasede0
- Comparator
- control fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased phospholipase A 2 (PLA 2 ) activity were observed in MT-treated fruit compared to control fruit”
e1“mango fruit during refrigeration”
Claim · model-written summary
Melatonin changed profiles of phospholipids, lysophospholipids, and sphingolipids in mango fruit.
- Taxon
- mango fruitMangifera indicae1
- Treatment
- MTe0
- Outcome
- molecular species profiles of various classes of lipids (phospholipids, lysophospholipids , sphingolipids and glycerides)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lipidomic analysis revealed changes in molecular species profiles of various classes of lipids (phospholipids, lysophospholipids , sphingolipids and glycerides) in response to MT”
e1“mango fruit during refrigeration”
Claim · model-written summary
The authors infer that melatonin remodels lipids by regulating membrane lipid metabolism, supporting membrane structure and cold tolerance.
- Taxon
- mango fruitMangifera indicae0
- Treatment
- MTe0
- Outcome
- improved cold tolerancee0
- Qualifier
- regulating membrane lipid metabolisme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MT could trigger remodeling of lipid molecules by regulating membrane lipid metabolism , which would be conducive to maintaining membrane structure and activating downstream signaling pathways , contributing to improved cold tolerance in mango fruit”
The same questions in other papers
melatonin · crop injury · Mangifera indica (mango)Results agree
7 papers in the same direction as this paper
- positive
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See all 8 papers →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.