Abstract
Effect of exogenous salicylic acid(SA)on the heat tolerance in grape seedlings under high temperature stress was studied.Took two years old Vitis vinifera(Crinson)seedless grape cuttings as experimental material,took with 7~9leaves of seedlings,cleaning and spring 150μmol/L SA,then put them in 45 ℃high temperature environment at different treatment time,such as 10min,30min,1h,2h,4hand 8h.And with the plant spaying distilled water,put them in 45 ℃ high temperature environment at different treatment time,such as 10min,30min,1h,2h,4hand 8has control.The effects of SA on soluble protein content,activity of the protein kinases,free soluble protein content and free proline content,leakage rate of electrolyte,malondialdehyde(MDA)content were studied in Vitis vinifera(Crinson)seedlings leaves.The results showed that exogenous SA could enhance the contents of soluble protein and free proline,modulate the kinase activity,and promoted protein phosphorylation reaction.Changes of the soluble protein content and the activity of protein kinase was consistent,the soluble protein content reached the peak when 1h,meanwhile the activity of protein kinase reached the peak too.With the increase of high temperature stress(1h),exogenous SA significantly decreased the leakage rate of electrolyte and malondialdehyde(MDA)content.In summary,exogenous SA could effectively increase the soluble protein content and free proline content,reduce the leakage rate of electrolyte and malondialdehyde(MDA)content significantly,decrease the cell membrane lipid peroxidation injury,enhance the activity of protein kinase,and promote protein phosphorylation reaction and improve the heat resistance of grape.
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Claims 8
Claim · model-written summary
Exogenous SA enhanced soluble protein and free proline contents relative to distilled-water controls.
Verbatim
e0“Effect of exogenous salicylic acid(SA)on the heat tolerance in grape seedlings under high temperature stress was studied”
e1“exogenous SA could enhance the contents of soluble protein and free proline”
e2“And with the plant spaying distilled water”
Claim · model-written summary
Exogenous SA modulated protein kinase activity relative to distilled-water controls.
Verbatim
e0“Effect of exogenous salicylic acid(SA)on the heat tolerance in grape seedlings under high temperature stress was studied”
e2“And with the plant spaying distilled water”
e6“modulate the kinase activity, and promoted protein phosphorylation reaction”
Claim · model-written summary
Exogenous SA promoted protein phosphorylation relative to distilled-water controls.
Verbatim
e0“Effect of exogenous salicylic acid(SA)on the heat tolerance in grape seedlings under high temperature stress was studied”
e2“And with the plant spaying distilled water”
e6“modulate the kinase activity, and promoted protein phosphorylation reaction”
Claim · model-written summary
Soluble protein content and protein kinase activity changed consistently under exogenous SA.
- Taxon
- grape seedlingse0
- Treatment
- exogenous salicylic acid(SA)e0
- Outcome
- soluble protein content and the activity of protein kinasee5
Not reportedDirection
Verbatim
e0“Effect of exogenous salicylic acid(SA)on the heat tolerance in grape seedlings under high temperature stress was studied”
e5“Changes of the soluble protein content and the activity of protein kinase was consistent”
Claim · model-written summary
Soluble protein content reached its peak at 1 h of high-temperature treatment.
Verbatim
e0“Effect of exogenous salicylic acid(SA)on the heat tolerance in grape seedlings under high temperature stress was studied”
e3“the soluble protein content reached the peak when 1h, meanwhile the activity of protein kinase reached the peak too”
Claim · model-written summary
Protein kinase activity reached its peak at the same time as soluble protein content.
Verbatim
e0“Effect of exogenous salicylic acid(SA)on the heat tolerance in grape seedlings under high temperature stress was studied”
e3“the soluble protein content reached the peak when 1h, meanwhile the activity of protein kinase reached the peak too”
Claim · model-written summary
Exogenous SA significantly decreased electrolyte leakage and MDA content under 1 h of high-temperature stress.
- Taxon
- grape seedlingse0
- Treatment
- exogenous salicylic acid(SA)e0
- Outcome
- leakage rate of electrolyte and malondialdehyde(MDA)contente4
- Direction
- decreasede4
- Qualifier
- high temperature stress(1h)e4
Not reportedComparator
Verbatim
e0“Effect of exogenous salicylic acid(SA)on the heat tolerance in grape seedlings under high temperature stress was studied”
e4“With the increase of high temperature stress(1h), exogenous SA significantly decreased the leakage rate of electrolyte and malondialdehyde(MDA)content”
Claim · model-written summary
Exogenous SA improved the heat resistance of grape seedlings.
- Taxon
- grapee7
- Treatment
- exogenous salicylic acid(SA)e0
- Outcome
- heat resistance of grapee7
- Direction
- improvee7
Not reportedComparator
Verbatim
e0“Effect of exogenous salicylic acid(SA)on the heat tolerance in grape seedlings under high temperature stress was studied”
e7“improve the heat resistance of grape”
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