Abstract
Salicylic acid (SA) is used in agricultural practices because it induces stress tolerance. The goal of this study was to determine the SA concentration in leaves, the change in catalase (CAT) activity and the change in total antioxidant capacity (TAC) that result from the exogenous application of SA (10-4 M) to tomato leaves every 15 days in a greenhouse with and without NaCl application. Fruit yield was also verified. Treatments included SA + 100 mM NaCl, SA + 0 mM NaCl, water + 100 mM NaCl, and water + 0 mM NaCl. As a response to the foliar application of SA, the concentration of SA in leaf tissue exhibited a dynamic behavior that was similar to that reported when SA was induced by environmental stress. A similar phenomenon was observed for CAT and TAC activity after application of SA to leaves: CAT and TAC values increased at 24 h, reached their highest values at 48 h and began decreasing at 144 h, closely following the initial dynamics of SA concentration after each application. The spray application of SA in the absence of NaCl significantly increased the concentration of SA (up to 145 and 289% for the first and second application respectively) and CAT activity (up to 182% for the third application) in leaves, without affecting fruit yield. The application of SA in combination with 100 mM NaCl had the highest values of SA (up to 381 and 258% for the second and third application respectively) and CAT activity (up to 142 and 294% for the first and third application respectively), without changing consistently the TAC of the leaves and without any effect on fruit production. The application of 100 mM NaCl did not affects the CAT activity, TAC or SA into the leaves, or fruit production. Key words: Plant stress tolerance, elicitors, salicylates, antioxidants.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 14
Claim · model-written summary
Spray SA without NaCl significantly increased leaf SA concentration by up to 145% after the first application.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- spray application of SA in the absence of NaCle1
- Outcome
- concentration of SAe1
- Direction
- increasede1
- Value
- up to 145e1
- Qualifier
- for the first and second application respectivelye1
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the exogenous application of SA (10-4 M) to tomato leaves every 15 days in a greenhouse with and without NaCl application”
e1“The spray application of SA in the absence of NaCl significantly increased the concentration of SA (up to 145 and 289% for the first and second application respectively) and CAT activity (up to 182% for the third application) in leaves, without affecting fruit yield”
Claim · model-written summary
Spray SA without NaCl significantly increased leaf SA concentration by 289% after the second application.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- spray application of SA in the absence of NaCle1
- Outcome
- concentration of SAe1
- Direction
- increasede1
- Value
- 289%e1
- Qualifier
- for the first and second application respectivelye1
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the exogenous application of SA (10-4 M) to tomato leaves every 15 days in a greenhouse with and without NaCl application”
e1“The spray application of SA in the absence of NaCl significantly increased the concentration of SA (up to 145 and 289% for the first and second application respectively) and CAT activity (up to 182% for the third application) in leaves, without affecting fruit yield”
Claim · model-written summary
Spray SA without NaCl significantly increased leaf CAT activity by up to 182% after the third application.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- spray application of SA in the absence of NaCle1
- Outcome
- CAT activitye1
- Direction
- increasede1
- Value
- 182%e1
- Qualifier
- for the third applicatione1
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the exogenous application of SA (10-4 M) to tomato leaves every 15 days in a greenhouse with and without NaCl application”
e1“The spray application of SA in the absence of NaCl significantly increased the concentration of SA (up to 145 and 289% for the first and second application respectively) and CAT activity (up to 182% for the third application) in leaves, without affecting fruit yield”
Claim · model-written summary
Spray SA without NaCl did not affect tomato fruit yield.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- spray application of SA in the absence of NaCle1
- Outcome
- fruit yielde1
- Direction
- without affectinge1
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the exogenous application of SA (10-4 M) to tomato leaves every 15 days in a greenhouse with and without NaCl application”
e1“The spray application of SA in the absence of NaCl significantly increased the concentration of SA (up to 145 and 289% for the first and second application respectively) and CAT activity (up to 182% for the third application) in leaves, without affecting fruit yield”
Claim · model-written summary
SA applied with 100 mM NaCl gave the highest leaf SA values, up to 381% at the second application.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- application of SA in combination with 100 mM NaCle2
- Outcome
- values of SAe2
- Direction
- higheste2
- Value
- up to 381e2
- Qualifier
- for the second and third application respectivelye2
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the exogenous application of SA (10-4 M) to tomato leaves every 15 days in a greenhouse with and without NaCl application”
e2“The application of SA in combination with 100 mM NaCl had the highest values of SA (up to 381 and 258% for the second and third application respectively) and CAT activity (up to 142 and 294% for the first and third application respectively)”
Claim · model-written summary
SA applied with 100 mM NaCl gave the highest leaf SA values, 258% at the third application.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- application of SA in combination with 100 mM NaCle2
- Outcome
- values of SAe2
- Direction
- higheste2
- Value
- 258%e2
- Qualifier
- for the second and third application respectivelye2
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the exogenous application of SA (10-4 M) to tomato leaves every 15 days in a greenhouse with and without NaCl application”
e2“The application of SA in combination with 100 mM NaCl had the highest values of SA (up to 381 and 258% for the second and third application respectively) and CAT activity (up to 142 and 294% for the first and third application respectively)”
Claim · model-written summary
SA with 100 mM NaCl gave the highest leaf CAT activity, up to 142% at the first application.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- application of SA in combination with 100 mM NaCle2
- Outcome
- CAT activitye2
- Direction
- higheste2
- Value
- up to 142e2
- Qualifier
- for the first and third application respectivelye2
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the exogenous application of SA (10-4 M) to tomato leaves every 15 days in a greenhouse with and without NaCl application”
e2“The application of SA in combination with 100 mM NaCl had the highest values of SA (up to 381 and 258% for the second and third application respectively) and CAT activity (up to 142 and 294% for the first and third application respectively)”
Claim · model-written summary
SA with 100 mM NaCl gave the highest leaf CAT activity, 294% at the third application.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- application of SA in combination with 100 mM NaCle2
- Outcome
- CAT activitye2
- Direction
- higheste2
- Value
- 294%e2
- Qualifier
- for the first and third application respectivelye2
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the exogenous application of SA (10-4 M) to tomato leaves every 15 days in a greenhouse with and without NaCl application”
e2“The application of SA in combination with 100 mM NaCl had the highest values of SA (up to 381 and 258% for the second and third application respectively) and CAT activity (up to 142 and 294% for the first and third application respectively)”
Claim · model-written summary
SA with 100 mM NaCl did not consistently change leaf total antioxidant capacity.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- application of SA in combination with 100 mM NaCle2
- Outcome
- TAC of the leavese3
- Direction
- without changing consistentlye3
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the exogenous application of SA (10-4 M) to tomato leaves every 15 days in a greenhouse with and without NaCl application”
e2“The application of SA in combination with 100 mM NaCl had the highest values of SA (up to 381 and 258% for the second and third application respectively) and CAT activity (up to 142 and 294% for the first and third application respectively)”
e3“without changing consistently the TAC of the leaves and without any effect on fruit production”
Claim · model-written summary
SA with 100 mM NaCl had no effect on tomato fruit production.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- application of SA in combination with 100 mM NaCle2
- Outcome
- fruit productione3
- Direction
- without any effecte3
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the exogenous application of SA (10-4 M) to tomato leaves every 15 days in a greenhouse with and without NaCl application”
e2“The application of SA in combination with 100 mM NaCl had the highest values of SA (up to 381 and 258% for the second and third application respectively) and CAT activity (up to 142 and 294% for the first and third application respectively)”
e3“without changing consistently the TAC of the leaves and without any effect on fruit production”
Claim · model-written summary
The application of 100 mM NaCl alone did not affect leaf CAT activity, TAC or SA.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- application of 100 mM NaCle4
- Outcome
- CAT activity, TAC or SAe4
- Direction
- did not affectse4
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the exogenous application of SA (10-4 M) to tomato leaves every 15 days in a greenhouse with and without NaCl application”
e4“The application of 100 mM NaCl did not affects the CAT activity, TAC or SA into the leaves, or fruit production”
Claim · model-written summary
The application of 100 mM NaCl alone did not affect tomato fruit production.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- application of 100 mM NaCle4
- Outcome
- fruit productione4
- Direction
- did not affectse4
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the exogenous application of SA (10-4 M) to tomato leaves every 15 days in a greenhouse with and without NaCl application”
e4“The application of 100 mM NaCl did not affects the CAT activity, TAC or SA into the leaves, or fruit production”
Claim · model-written summary
Leaf SA concentration after foliar SA showed a dynamic behavior similar to that reported under environmental stress.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- foliar application of SAe5
- Outcome
- concentration of SA in leaf tissuee5
- Qualifier
- dynamic behavior that was similar to that reported when SA was induced by environmental stresse5
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the exogenous application of SA (10-4 M) to tomato leaves every 15 days in a greenhouse with and without NaCl application”
e5“As a response to the foliar application of SA, the concentration of SA in leaf tissue exhibited a dynamic behavior that was similar to that reported when SA was induced by environmental stress”
Claim · model-written summary
After SA application to leaves, CAT and TAC values increased at 24 h and reached their highest values at 48 h.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- application of SA to leavese6
- Outcome
- CAT and TAC valuese6
- Direction
- increasede6
- Qualifier
- reached their highest values at 48 he6
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the exogenous application of SA (10-4 M) to tomato leaves every 15 days in a greenhouse with and without NaCl application”
e6“A similar phenomenon was observed for CAT and TAC activity after application of SA to leaves: CAT and TAC values increased at 24 h, reached their highest values at 48 h and began decreasing at 144 h”
The same questions in other papers
sodium chloride · physiology: antioxidant enzymes · Solanum lycopersicum (tomato)Results differ
5 papers in the same direction as this paper · 6 in the opposite direction
- positive
- positive
- positive
8 papers more in this group
See all 12 papers →salicylic acid · quality: phytochemicals · Solanum lycopersicum (tomato)Results differ
1 paper in the same direction as this paper · 24 in the opposite direction
- positive
- positive
- positive
22 papers more in this group
See all 26 papers →sodium chloride · yield · Solanum lycopersicum (tomato)Results differ
39 papers in the same direction as this paper · 8 in the opposite direction
- positive
- positive
- positive
44 papers more in this group
See all 48 papers →salicylic acid · molecular: metabolites · Solanum lycopersicum (tomato)Positive and negative results
26 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- positive
24 papers more in this group
See all 28 papers →salicylic acid · physiology: antioxidant enzymes · Solanum lycopersicum (tomato)Positive and negative results
30 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
29 papers more in this group
See all 33 papers →salicylic acid · yield · Solanum lycopersicum (tomato)Positive and negative results
2 papers in the same direction as this paper · 45 in the opposite direction
- positive
- positive
- positive
44 papers more in this group
See all 48 papers →application · physiology: antioxidant enzymes · Solanum lycopersicum (tomato)Positive and negative results
34 papers in the same direction as this paper · 5 in the opposite direction
- negative
- negative
- negative
36 papers more in this group
See all 40 papers →application · molecular: metabolites · Solanum lycopersicum (tomato)Positive and negative results
37 papers in the same direction as this paper · 6 in the opposite direction
- negative
- negative
- negative
40 papers more in this group
See all 44 papers →8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.