Abstract
Two wheat (Triticum aestivum) cultivars, freeze-tolerant Dongnongdongmai 1 and freeze-sensitive Jimai 22, were used in this study. They were grown under field conditions, the leaves were sprayed with 1 × 10(-5) mol/L ABA and distilled water as control respectively at the three-true-leaf stage. Application of exogenous ABA increased the accumulation of carbohydrates in both cultivars, mainly in sucrose and fructose, except that the fructose content decreased in the leaves of Jimai 22. Exogenous ABA also enhanced the expression of key enzyme genes, especially in Dongnongdongmai 1 above 0 °C and in Jimai 22 below 0 °C. The carbohydrate contents and expression levels of the genes encoding key enzymes showed co-regulation in some, but not all of the pathways examined. Taken together, the higher sugar accumulation and the upregulation in expression of key enzymes in freeze-tolerant Dongnongdongmai 1 due to exogenous ABA suggest that active carbohydrate metabolism is mainly associated with the freeze tolerance of Dongnongdongmai 1.
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Claims 8
Claim · model-written summary
Exogenous ABA increased carbohydrate accumulation in both wheat cultivars.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- exogenous ABAe0
- Outcome
- accumulation of carbohydratese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of exogenous ABA increased the accumulation of carbohydrates in both cultivars”
t0“Winter Wheat”
Claim · model-written summary
Exogenous ABA increased sucrose accumulation in both cultivars.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- exogenous ABAe0
- Outcome
- sucrosee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of exogenous ABA increased the accumulation of carbohydrates in both cultivars, mainly in sucrose and fructose”
t0“Winter Wheat”
Claim · model-written summary
Exogenous ABA increased fructose accumulation except in Jimai 22 leaves.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- exogenous ABAe0
- Outcome
- fructosee0
- Direction
- increasede0
- Qualifier
- except that the fructose content decreased in the leaves of Jimai 22e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of exogenous ABA increased the accumulation of carbohydrates in both cultivars, mainly in sucrose and fructose, except that the fructose content decreased in the leaves of Jimai 22”
t0“Winter Wheat”
Claim · model-written summary
ABA decreased fructose content in Jimai 22 leaves.
- Taxon
- WheatTriticum aestivumt0
- Material
- Jimai 22e0
- Organ / stage
- leavese0
- Treatment
- ABAe1
- Outcome
- fructose contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“except that the fructose content decreased in the leaves of Jimai 22”
e1“Application of exogenous ABA increased the accumulation of carbohydrates in both cultivars”
t0“Winter Wheat”
Claim · model-written summary
ABA enhanced key enzyme gene expression, especially in Dongnongdongmai 1 above 0 °C.
- Taxon
- Dongnongdongmai 1e0
- Material
- Dongnongdongmai 1e0
- Treatment
- Exogenous ABAe0
- Outcome
- expression of key enzyme genese0
- Direction
- enhancede0
- Qualifier
- above 0 °Ce0
Not reportedComparator
Verbatim
e0“Exogenous ABA also enhanced the expression of key enzyme genes, especially in Dongnongdongmai 1 above 0 °C”
Claim · model-written summary
ABA enhanced key enzyme gene expression, especially in Jimai 22 below 0 °C.
- Taxon
- WheatTriticum aestivumt0
- Material
- Jimai 22e0
- Treatment
- Exogenous ABAe0
- Outcome
- expression of key enzyme genese0
- Direction
- enhancede0
- Qualifier
- below 0 °Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous ABA also enhanced the expression of key enzyme genes, especially in Dongnongdongmai 1 above 0 °C and in Jimai 22 below 0 °C”
t0“Winter Wheat”
Claim · model-written summary
Carbohydrate contents and key enzyme gene expression were co-regulated in some but not all pathways.
- Taxon
- WheatTriticum aestivumt0
- Gene
- genes encoding key enzymese0
- Outcome
- co-regulation in some, but not all of the pathways examinede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The carbohydrate contents and expression levels of the genes encoding key enzymes showed co-regulation in some, but not all of the pathways examined”
t0“Winter Wheat”
Claim · model-written summary
Authors associate ABA-induced sugar accumulation and enzyme expression with Dongnongdongmai 1 freeze tolerance.
- Taxon
- Dongnongdongmai 1e0
- Material
- Dongnongdongmai 1e0
- Treatment
- exogenous ABAe0
- Outcome
- freeze tolerance of Dongnongdongmai 1e0
Not reportedDirection
Verbatim
e0“the higher sugar accumulation and the upregulation in expression of key enzymes in freeze-tolerant Dongnongdongmai 1 due to exogenous ABA suggest that active carbohydrate metabolism is mainly associated with the freeze tolerance of Dongnongdongmai 1”
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- negative
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33 papers in the same direction as this paper · 9 in the opposite direction
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See all 43 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.