Abstract
Exogenous hydrogen peroxide, and salicylic acid and methyl jasmonate,which induced the accumulation of endogenous hydrogen peroxide in plants, were used to investigate the role of hydrogen peroxide on induction of chilling resistance of postharvest banana fruits. The results indicated that 20 mmol·L-1 hydrogen peroxide, 0.7 mmol·L-1 salicylic acid and 0.1 mmol·L-1 methyl jasmonate treatments delayed the occurrence of chilling injury symptom of banana fruits by 2-5 d at 7℃. The treatments also delayed the increase of membrane permeability and MDA contents, induced the activities of SOD and POD, inhibited the activities of CAT, and therefore resulted in accumulation of endogenous hydrogen peroxide in pericarp of banana fruits. The results implied that salicylic acid and methyl jasmonate might induce the accumulation of endogenous hydrogen peroxide by inhibition of CAT activity, and hydrogen peroxide might involve in induction of the chilling resistance of postharvest banana fruits by acting as the signal molecule.
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Claims 9
Claim · model-written summary
Hydrogen peroxide treatment delayed banana chilling injury by 2–5 days at 7°C.
- Taxon
- banana fruitse0
- Treatment
- 20 mmol·L-1 hydrogen peroxidee0
- Outcome
- chilling injury symptome0
- Direction
- delayede0
- Value
- 2-5 de0
- Qualifier
- 7℃e0
Not reportedComparator
Verbatim
e0“20 mmol·L-1 hydrogen peroxide, 0.7 mmol·L-1 salicylic acid and 0.1 mmol·L-1 methyl jasmonate treatments delayed the occurrence of chilling injury symptom of banana fruits by 2-5 d at 7℃”
Claim · model-written summary
Salicylic acid treatment delayed banana chilling injury by 2–5 days at 7°C.
- Taxon
- banana fruitse0
- Treatment
- 0.7 mmol·L-1 salicylic acide0
- Outcome
- chilling injury symptome0
- Direction
- delayede0
- Value
- 2-5 de0
- Qualifier
- 7℃e0
Not reportedComparator
Verbatim
e0“20 mmol·L-1 hydrogen peroxide, 0.7 mmol·L-1 salicylic acid and 0.1 mmol·L-1 methyl jasmonate treatments delayed the occurrence of chilling injury symptom of banana fruits by 2-5 d at 7℃”
Claim · model-written summary
Methyl jasmonate treatment delayed banana chilling injury by 2–5 days at 7°C.
- Taxon
- banana fruitse0
- Treatment
- 0.1 mmol·L-1 methyl jasmonatee0
- Outcome
- chilling injury symptome0
- Direction
- delayede0
- Value
- 2-5 de0
- Qualifier
- 7℃e0
Not reportedComparator
Verbatim
e0“20 mmol·L-1 hydrogen peroxide, 0.7 mmol·L-1 salicylic acid and 0.1 mmol·L-1 methyl jasmonate treatments delayed the occurrence of chilling injury symptom of banana fruits by 2-5 d at 7℃”
Claim · model-written summary
The treatments delayed increases in membrane permeability and MDA content.
Not reportedTaxonComparator
Verbatim
e0“The treatments also delayed the increase of membrane permeability and MDA contents”
Claim · model-written summary
The treatments induced SOD and POD activities.
Not reportedTaxonTreatmentComparator
Verbatim
e0“induced the activities of SOD and POD”
Claim · model-written summary
The treatments inhibited CAT activity.
Not reportedTaxonTreatmentComparator
Verbatim
e0“inhibited the activities of CAT”
Claim · model-written summary
The treatments caused endogenous hydrogen peroxide to accumulate in banana pericarp.
Verbatim
e0“therefore resulted in accumulation of endogenous hydrogen peroxide in pericarp of banana fruits”
Claim · model-written summary
The authors suggest salicylic acid and methyl jasmonate may increase endogenous hydrogen peroxide by inhibiting CAT.
- Treatment
- salicylic acid and methyl jasmonatee0
- Gene
- CATe0
- Outcome
- accumulation of endogenous hydrogen peroxidee0
- Qualifier
- inhibition of CAT activitye0
Not reportedTaxon
Verbatim
e0“salicylic acid and methyl jasmonate might induce the accumulation of endogenous hydrogen peroxide by inhibition of CAT activity”
Claim · model-written summary
The authors suggest hydrogen peroxide may signal chilling resistance in postharvest banana fruit.
Verbatim
e0“hydrogen peroxide might involve in induction of the chilling resistance of postharvest banana fruits by acting as the signal molecule”
The same questions in other papers
hydrogen peroxide · crop injury · MusaResults agree
1 paper in the same direction as this paper
- positive
salicylic acid · crop injury · MusaResults agree
1 paper in the same direction as this paper
- positive
(-)-methyl jasmonate · crop injury · MusaResults agree
3 papers in the same direction as this paper
- positive
- 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.