Abstract
The objective of this study was to evaluate the response to exogenous application of different chemical elicitors on the stimulation of defense enzymes such as chitinase, peroxidase, phenylalanine ammonialyase (PAL) and polyphenoloxidase (PPO) in tomato and chilli plants leaves tissues. Chemical elicitors are compounds, which activate chemical defense systems in plants. Various biosynthetic pathways are activated by chemical elicitors in plants depending on the elicitors used. Two times exogenous application of 200 ppm of salicylic acid (SA), ascorbic acid (AA), jasmonic acid (JA) and H2O2 and ethanol (1 mL of 95% ethanol in 1 L distilled water) induced the four defense enzymes production in chilli and tomato plants leaves tissues and significantly reduced viral disease incidence in chilli plants compared to control. SA at 200 ppm enhanced significantly chitinase, peroxidase, PAL and PPO enzymes in leaves tissues of tomato plants. Tomato plants treated with chemical elicitors and control did not show any disease symptoms.
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Claims 5
Claim · model-written summary
The listed elicitors induced four defense enzymes in chilli leaves.
- Taxon
- chillie0
- Organ / stage
- leaves tissuese0
- Treatment
- salicylic acid (SA), ascorbic acid (AA), jasmonic acid (JA) and H2O2 and ethanole0
- Outcome
- the four defense enzymes productione0
- Direction
- inducede0
Not reportedComparator
Verbatim
e0“Two times exogenous application of 200 ppm of salicylic acid (SA), ascorbic acid (AA), jasmonic acid (JA) and H2O2 and ethanol (1 mL of 95% ethanol in 1 L distilled water) induced the four defense enzymes production in chilli and tomato plants leaves tissues”
e1“defense enzymes such as chitinase, peroxidase, phenylalanine ammonialyase (PAL) and polyphenoloxidase (PPO)”
Claim · model-written summary
The listed elicitors induced four defense enzymes in tomato leaves.
- Taxon
- tomato
Solanum lycopersicume0 - Organ / stage
- leaves tissuese0
- Treatment
- salicylic acid (SA), ascorbic acid (AA), jasmonic acid (JA) and H2O2 and ethanole0
- Outcome
- the four defense enzymes productione0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Two times exogenous application of 200 ppm of salicylic acid (SA), ascorbic acid (AA), jasmonic acid (JA) and H2O2 and ethanol (1 mL of 95% ethanol in 1 L distilled water) induced the four defense enzymes production in chilli and tomato plants leaves tissues”
Claim · model-written summary
The listed elicitors significantly reduced viral disease incidence in chilli relative to control.
Verbatim
e0“Two times exogenous application of 200 ppm of salicylic acid (SA), ascorbic acid (AA), jasmonic acid (JA) and H2O2 and ethanol (1 mL of 95% ethanol in 1 L distilled water) induced the four defense enzymes production in chilli and tomato plants leaves tissues and significantly reduced viral disease incidence in chilli plants compared to control.”
Claim · model-written summary
Salicylic acid significantly enhanced chitinase, peroxidase, PAL and PPO in tomato leaves.
- Taxon
- tomato
Solanum lycopersicume0 - Organ / stage
- leaves tissuese0
- Treatment
- SA at 200 ppme0
- Outcome
- chitinase, peroxidase, PAL and PPO enzymese0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“SA at 200 ppm enhanced significantly chitinase, peroxidase, PAL and PPO enzymes in leaves tissues of tomato plants.”
Claim · model-written summary
Tomato plants showed no disease symptoms under chemical elicitors or control.
- Taxon
- Tomato
Solanum lycopersicume0 - Treatment
- chemical elicitorse0
- Outcome
- did not show any disease symptomse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Tomato plants treated with chemical elicitors and control did not show any disease symptoms.”
The same questions in other papers
ethanol · physiology: antioxidant enzymes · Solanum lycopersicum (tomato)Positive and negative results
1 in the opposite direction
- no effect
salicylic acid · physiology: antioxidant enzymes · Solanum lycopersicum (tomato)Positive and negative results
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- negative
- no effect
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See all 33 papers →ascorbic acid · physiology: antioxidant enzymes · Capsicum (peppers)Results agree
1 paper in the same direction as this paper
- positive
salicylic acid · physiology: antioxidant enzymes · Capsicum (peppers)Results agree
1 paper in the same direction as this paper
- positive
hydrogen peroxide · physiology: antioxidant enzymes · Solanum lycopersicum (tomato)Results agree
2 papers in the same direction as this paper
- positive
- positive
jasmonic acid · physiology: antioxidant enzymes · Capsicum (peppers)Results agree
2 papers in the same direction as this paper
- positive
- positive
jasmonic acid · physiology: antioxidant enzymes · Solanum lycopersicum (tomato)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
jasmonic acid · disease · Capsicum (peppers)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
8 of 10 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.