Abstract
The role of salicylic acid (SA) as a possible signaling component in the case of the infection of plants with nematodes has been studied using a model system consisting of the tomato (Lycopersicon esculentum (Mill.) and race 1 of the gall eelworm Meloidogyne incognita (Kofoid and White, 1919; Chitwood, 1949). The pre-planting SA treatment of tomato seeds results in an increased nematode resistance of susceptible tomato cultivars; the protective effect is higher in the case of SA combined with chitosan, a biogenic elicitor of plant resistance. The studied preparations stimulate the growth and development of the plants. The increase in the resistance of tomato plants is related to the increased activity of phenylalanine ammonia-lyase and an increased SA content in plant tissues infected with nematodes; both these factors significantly influence nematode development.
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Claims 6
Claim · model-written summary
Preplanting salicylic acid treatment increased resistance of susceptible tomato cultivars to the gall eelworm.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- pre-planting SA treatmente0
- Interactor
- Meloidogyne incognita
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogyne incognitae1pathogen - Outcome
- nematode resistancee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“The pre-planting SA treatment of tomato seeds results in an increased nematode resistance of susceptible tomato cultivars”
e1“gall eelworm Meloidogyne incognita”
Claim · model-written summary
Combining salicylic acid with chitosan gave a stronger protective effect.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- SA combined with chitosane0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitae2pathogen
- Outcome
- protective effecte0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the protective effect is higher in the case of SA combined with chitosan, a biogenic elicitor of plant resistance”
e1“tomato cultivars”
e2“gall eelworm Meloidogyne incognita”
Claim · model-written summary
The studied preparations stimulated tomato growth and development.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- studied preparationse0
- Outcome
- growth and developmente0
- Direction
- stimulatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The studied preparations stimulate the growth and development of the plants.”
e1“tomato seeds”
Claim · model-written summary
Increased tomato resistance was related to higher phenylalanine ammonia-lyase activity.
- Taxon
- tomatoSolanum lycopersicume0
- Gene
- phenylalanine ammonia-lyasee0
- Outcome
- resistance of tomato plantse0
- Direction
- increasee0
- Qualifier
- increased activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in the resistance of tomato plants is related to the increased activity of phenylalanine ammonia-lyase”
Claim · model-written summary
Increased tomato resistance was related to higher salicylic acid content in infected tissues.
- Taxon
- tomatoSolanum lycopersicume0
- Compound
- SAe0
- Outcome
- resistance of tomato plantse0
- Direction
- increasee0
- Qualifier
- increased SA content in plant tissues infected with nematodese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in the resistance of tomato plants is related to the increased activity of phenylalanine ammonia-lyase and an increased SA content in plant tissues infected with nematodes”
Claim · model-written summary
Phenylalanine ammonia-lyase activity and salicylic acid content significantly influenced nematode development.
- Taxon
- tomatoSolanum lycopersicume2
- Gene
- phenylalanine ammonia-lyasee1
- Compound
- SAe1
- Outcome
- nematode developmente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both these factors significantly influence nematode development”
e1“phenylalanine ammonia-lyase and an increased SA content”
e2“tomato plants”
The same questions in other papers
chitosan · Meloidogyne incognita · Solanum lycopersicum (tomato)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
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See all 6 papers →salicylic acid · Meloidogyne incognita · Solanum lycopersicum (tomato)Results agree
14 papers in the same direction as this paper
- positive
- positive
- positive
11 papers more in this group
See all 15 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.