Abstract
In this paper,the effect of exogenous putrescine (Put) on chilling injury rate,chilling injury index, flesh firmness,total soluble solids (TSS),titratable acidity (TA),respiration,ethylene production,and activities of superoxide dismutase (SOD),peroxidase (POD),catalase (CAT) and lipoxygenase (LOX) of the nectarine (Prunus persica var.nectarina) variety‘Qinguang 2’were studied.The results showed that the chilling injury of nectarine fruits stored at 0℃was delayed for 10 d by exogenous Put treatment,the chilling injury rate and chilling injury index were different from control.Put significantly raised the activities of membrane SOD,CAT and POD and inhibited the LOX activity,meantime,the Put decreased the ethylene production and the respira- tion rate,delayed the respiration peak and the ethylene peak,slowed down the decrease in the flesh firmness, and made the content of TSS at a high level.However,it showed no remarkable effect on the contents of TA.
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Claims 9
Claim · model-written summary
Exogenous putrescine delayed chilling injury of nectarine fruits stored at 0℃ by 10 d compared with control.
- Taxon
- nectarine
Prunus persica var. nucipersicae0 - Material
- Qinguang 2e0
- Organ / stage
- fruitse1
- Treatment
- exogenous Put treatmente1
- Outcome
- chilling injurye1
- Direction
- delayede1
- Value
- 10 de1
- Qualifier
- stored at 0℃e1
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“of the nectarine (Prunus persica var.nectarina) variety‘Qinguang 2’were studied”
e1“the chilling injury of nectarine fruits stored at 0℃was delayed for 10 d by exogenous Put treatment”
e2“the chilling injury rate and chilling injury index were different from control”
Claim · model-written summary
Exogenous putrescine made the chilling injury rate and chilling injury index of nectarine differ from control.
- Taxon
- nectarinePrunus persica var. nucipersicae0
- Treatment
- exogenous Put treatmente1
- Outcome
- chilling injury rate and chilling injury indexe2
- Comparator
- controle2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“of the nectarine (Prunus persica var.nectarina) variety‘Qinguang 2’were studied”
e1“the chilling injury of nectarine fruits stored at 0℃was delayed for 10 d by exogenous Put treatment”
e2“the chilling injury rate and chilling injury index were different from control”
Claim · model-written summary
Exogenous putrescine significantly raised the activities of membrane SOD, CAT and POD in nectarine.
- Taxon
- nectarinePrunus persica var. nucipersicae0
- Treatment
- Pute3
- Gene
- membrane SOD,CAT and PODe3
- Outcome
- activitiese3
- Direction
- raisede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“of the nectarine (Prunus persica var.nectarina) variety‘Qinguang 2’were studied”
e3“Put significantly raised the activities of membrane SOD,CAT and POD”
Claim · model-written summary
Exogenous putrescine inhibited LOX activity in nectarine.
- Taxon
- nectarinePrunus persica var. nucipersicae0
- Treatment
- Pute3
- Gene
- LOXe4
- Outcome
- LOX activitye4
- Direction
- inhibitede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“of the nectarine (Prunus persica var.nectarina) variety‘Qinguang 2’were studied”
e3“Put significantly raised the activities of membrane SOD,CAT and POD”
e4“inhibited the LOX activity”
Claim · model-written summary
Exogenous putrescine decreased ethylene production and respiration rate of nectarine fruit.
- Taxon
- nectarinePrunus persica var. nucipersicae0
- Treatment
- Pute5
- Outcome
- ethylene production and the respira- tion ratee5
- Direction
- decreasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“of the nectarine (Prunus persica var.nectarina) variety‘Qinguang 2’were studied”
e5“the Put decreased the ethylene production and the respira- tion rate”
Claim · model-written summary
Exogenous putrescine delayed the respiration peak and the ethylene peak of nectarine.
- Taxon
- nectarinePrunus persica var. nucipersicae0
- Treatment
- Pute5
- Outcome
- respiration peak and the ethylene peake6
- Direction
- delayede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“of the nectarine (Prunus persica var.nectarina) variety‘Qinguang 2’were studied”
e5“the Put decreased the ethylene production and the respira- tion rate”
e6“delayed the respiration peak and the ethylene peak,slowed down the decrease in the flesh firmness, and made the content of TSS at a high level”
Claim · model-written summary
Exogenous putrescine slowed down the decrease in flesh firmness of nectarine.
- Taxon
- nectarinePrunus persica var. nucipersicae0
- Treatment
- Pute5
- Outcome
- decrease in the flesh firmnesse6
- Direction
- slowed downe6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“of the nectarine (Prunus persica var.nectarina) variety‘Qinguang 2’were studied”
e5“the Put decreased the ethylene production and the respira- tion rate”
e6“delayed the respiration peak and the ethylene peak,slowed down the decrease in the flesh firmness, and made the content of TSS at a high level”
Claim · model-written summary
Exogenous putrescine kept the content of TSS of nectarine at a high level.
- Taxon
- nectarinePrunus persica var. nucipersicae0
- Treatment
- Pute5
- Outcome
- content of TSSe6
- Direction
- higherinferrede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“of the nectarine (Prunus persica var.nectarina) variety‘Qinguang 2’were studied”
e5“the Put decreased the ethylene production and the respira- tion rate”
e6“delayed the respiration peak and the ethylene peak,slowed down the decrease in the flesh firmness, and made the content of TSS at a high level”
Claim · model-written summary
Exogenous putrescine showed no remarkable effect on titratable acidity contents of nectarine.
- Taxon
- nectarinePrunus persica var. nucipersicae0
- Treatment
- Pute5
- Outcome
- contents of TAe7
- Direction
- no remarkable effecte7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“of the nectarine (Prunus persica var.nectarina) variety‘Qinguang 2’were studied”
e5“the Put decreased the ethylene production and the respira- tion rate”
e7“However,it showed no remarkable effect on the contents of TA”
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See all 12 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.