Abstract
BACKGROUND: In higher plants, salicylic acid (SA) plays important roles in inducing resistance to biotic and abiotic stresses. Tomato yellow leaf curl virus (TYLCV) causes a highly devastating viral disease in plants, particularly in tomato. However, the roles of SA in inducing tomato plant resistance to TYLCV remain unclear. RESULTS: In this study, we investigated whether the exogenous application of SA can improve the resistance of tomato plants to TYLCV in two tomato cultivars, resistant 'Zhefen-702' and susceptible 'Jinpeng-1'. The impacts of SA on the accumulation of ascorbic acid (AsA) and biosynthetic gene expression, the activity of some important reactive oxygen species (ROS)-scavenging enzymes, and the expression patterns of stress-related genes were also determined. Results indicated that SA can effectively regulate the accumulation of AsA, especially in 'Jinpeng-1'. Similarly, the expression patterns of most of the AsA biosynthetic genes showed a negative relationship with AsA accumulation in the resistant and susceptible tomato cultivars. In the two tomato cultivars, the activities of ascorbate peroxidase (APX) and peroxidase (POD) in the SA + TYLCV treated plants were increased during the experiment period except at 14 days (APX in 'Jinpeng-1' was also at 4 days) post infected (dpi) with TYLCV. Simultaneously, the activity of SOD was reduced in 'Jinpeng-1' and increased in 'Zhefen-702' after treatment with SA + TYLCV. SA can substantially induce the expression of ROS-scavenging genes at different extents. From 2 to 10 dpi, the virus content in the SA + TYLCV treated plants was remarkably lower than those in the TYLCV treated plants in 'Jinpeng-1'and Zhefen-702'. CONCLUSIONS: The above results suggest that SA can enhance tomato plant resistance by modulating the expression of genes encoding for ROS-scavenging players, altering the activity of resistance-related enzymes, and inducing the expression of pathogenesis-related genes to produce systemic acquired resistance. Simultaneously, these results confirm that SA is a resistance-inducing factor against TYLCV infection that can be effectively applied in tomato plants.
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Claims 9
Claim · model-written summary
Salicylic acid effectively regulated ascorbic acid accumulation, especially in Jinpeng-1.
- Taxon
- tomato
Solanum lycopersicume0 - Material
- Jinpeng-1e1
- Treatment
- SAe1
- Outcome
- accumulation of AsAe1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato yellow leaf curl virus (TYLCV) causes a highly devastating viral disease in plants, particularly in tomato”
e1“SA can effectively regulate the accumulation of AsA, especially in 'Jinpeng-1'”
Claim · model-written summary
Ascorbic acid biosynthetic gene expression patterns were negatively related to AsA accumulation in both tomato cultivars.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- resistant and susceptible tomato cultivarse2
- Outcome
- expression patterns of most of the AsA biosynthetic genese2
- Direction
- negative relationshipe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato yellow leaf curl virus (TYLCV) causes a highly devastating viral disease in plants, particularly in tomato”
e2“the expression patterns of most of the AsA biosynthetic genes showed a negative relationship with AsA accumulation in the resistant and susceptible tomato cultivars”
Claim · model-written summary
Activities of ascorbate peroxidase and peroxidase increased in SA + TYLCV treated tomato plants during the experiment, except at 14 days.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- SA + TYLCVe3
- Interactor
- TYLCVTomato yellow leaf curl viruse0pathogen
- Outcome
- activities of ascorbate peroxidase (APX) and peroxidase (POD)e3
- Direction
- increasede3
- Qualifier
- during the experiment period except at 14 dayse3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato yellow leaf curl virus (TYLCV) causes a highly devastating viral disease in plants, particularly in tomato”
e3“the activities of ascorbate peroxidase (APX) and peroxidase (POD) in the SA + TYLCV treated plants were increased during the experiment period except at 14 days”
Claim · model-written summary
SOD activity was reduced in Jinpeng-1 after SA + TYLCV treatment.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- Jinpeng-1e4
- Treatment
- SA + TYLCVe4
- Interactor
- TYLCVTomato yellow leaf curl viruse0pathogen
- Outcome
- activity of SODe4
- Direction
- reducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato yellow leaf curl virus (TYLCV) causes a highly devastating viral disease in plants, particularly in tomato”
e4“the activity of SOD was reduced in 'Jinpeng-1' and increased in 'Zhefen-702' after treatment with SA + TYLCV”
Claim · model-written summary
SOD activity increased in Zhefen-702 after SA + TYLCV treatment.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- Zhefen-702e4
- Treatment
- SA + TYLCVe4
- Interactor
- TYLCVTomato yellow leaf curl viruse0pathogen
- Outcome
- activity of SODe4
- Direction
- increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato yellow leaf curl virus (TYLCV) causes a highly devastating viral disease in plants, particularly in tomato”
e4“the activity of SOD was reduced in 'Jinpeng-1' and increased in 'Zhefen-702' after treatment with SA + TYLCV”
Claim · model-written summary
Salicylic acid substantially induced expression of ROS-scavenging genes at different extents.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- SAe5
- Gene
- ROS-scavenging genese5
- Outcome
- expression of ROS-scavenging genese5
- Direction
- inducee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato yellow leaf curl virus (TYLCV) causes a highly devastating viral disease in plants, particularly in tomato”
e5“SA can substantially induce the expression of ROS-scavenging genes at different extents”
Claim · model-written summary
Virus content in SA + TYLCV treated tomato plants was remarkably lower than in TYLCV treated plants from 2 to 10 dpi.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- 'Jinpeng-1'and Zhefen-702'e6
- Treatment
- SA + TYLCVe6
- Interactor
- TYLCVTomato yellow leaf curl viruse0pathogen
- Outcome
- virus contente6
- Direction
- lowere6
- Qualifier
- From 2 to 10 dpie6
- Comparator
- TYLCV treated plantse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato yellow leaf curl virus (TYLCV) causes a highly devastating viral disease in plants, particularly in tomato”
e6“From 2 to 10 dpi, the virus content in the SA + TYLCV treated plants was remarkably lower than those in the TYLCV treated plants in 'Jinpeng-1'and Zhefen-702'”
Claim · model-written summary
Salicylic acid enhanced tomato plant resistance by modulating ROS-scavenging gene expression and resistance-related enzyme activity.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- SAe7
- Outcome
- tomato plant resistancee7
- Qualifier
- by modulating the expression of genes encoding for ROS-scavenging playerse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato yellow leaf curl virus (TYLCV) causes a highly devastating viral disease in plants, particularly in tomato”
e7“SA can enhance tomato plant resistance by modulating the expression of genes encoding for ROS-scavenging players, altering the activity of resistance-related enzymes, and inducing the expression of pathogenesis-related genes to produce systemic acquired resistance”
Claim · model-written summary
Salicylic acid can be effectively applied in tomato plants as a resistance-inducing factor against TYLCV.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- can be effectively applied in tomato plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato yellow leaf curl virus (TYLCV) causes a highly devastating viral disease in plants, particularly in tomato”
e1“SA is a resistance-inducing factor against TYLCV infection that can be effectively applied in tomato plants”
The same questions in other papers
salicylic acid · molecular: expression · Solanum lycopersicum (tomato)Positive and negative results
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- positive
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See all 37 papers →salicylic acid · Tomato yellow leaf curl virus · Solanum lycopersicum (tomato)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
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See all 5 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.