Abstract
The inducement of crude toxin from Cladosporium fulvum on defense enzyme(SOD,POD,PAL) and activity(O2-,H2O2) was studied in leaves of different tomato varieties by soaking method.The studies provided scientific basis on plant physiological and biochemical resistance mechanisms induced by pathogen-toxin. The results showed that superoxide dismutase(SOD) activity of all varieties descended,but the resistant variety had lower declining ratio and higher enzyme activity than that of the susceptible one.Changes of peroxidase(POD) activity in two varieties were similar.POD activity increased at first,followed by a decline,but two varieties had a little diversity in activity change.Phenylalanine ammonia-lyase(PAL) activity increased in two varieties,but PAL activity in the resistant variety increased fast,and increasing ratio was higher than that in susceptible one.Production rate of superoxide anion(O2-) and hydrogen peroxide(H2O2) content increased.Increasing ratio in resistant variety was higher than that in susceptible one.The activity in the resistant variety appeared earlier than that in the susceptible one.Changes of defense enzyme and activity oxygen induced by toxin from Cladosporium fulvum in tomato seedlings were closely related to their resistance.
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Claims 6
Claim · model-written summary
SOD activity declined in all tomato varieties, with a smaller decline and higher activity in the resistant variety.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- crude toxin from Cladosporium fulvumt0
- Interactor
- Cladosporium fulvum
Fulvia fulvat0pathogen - Gene
- superoxide dismutase(SOD)e0
- Outcome
- superoxide dismutase(SOD) activitye0
- Direction
- descendede0
- Comparator
- susceptible onee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that superoxide dismutase(SOD) activity of all varieties descended,but the resistant variety had lower declining ratio and higher enzyme activity than that of the susceptible one.”
t0“Induce of Crude Toxin from Cladosporium fulvum on Defense Enzyme and Activity Oxygen of Tomato Seedlings”
Claim · model-written summary
POD activity first increased then declined in both varieties, with some difference in change between them.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- crude toxin from Cladosporium fulvumt0
- Interactor
- Cladosporium fulvumFulvia fulvat0pathogen
- Gene
- peroxidase(POD)e0
- Outcome
- POD activitye0
- Direction
- increased at first,followed by a declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Changes of peroxidase(POD) activity in two varieties were similar.POD activity increased at first,followed by a decline,but two varieties had a little diversity in activity change.”
t0“Induce of Crude Toxin from Cladosporium fulvum on Defense Enzyme and Activity Oxygen of Tomato Seedlings”
Claim · model-written summary
PAL activity increased in both varieties, faster and at a higher rate in the resistant variety.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- crude toxin from Cladosporium fulvumt0
- Interactor
- Cladosporium fulvumFulvia fulvat0pathogen
- Gene
- Phenylalanine ammonia-lyase(PAL)e0
- Outcome
- PAL activitye0
- Direction
- increasede0
- Comparator
- susceptible onee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phenylalanine ammonia-lyase(PAL) activity increased in two varieties,but PAL activity in the resistant variety increased fast,and increasing ratio was higher than that in susceptible one.”
t0“Induce of Crude Toxin from Cladosporium fulvum on Defense Enzyme and Activity Oxygen of Tomato Seedlings”
Claim · model-written summary
Superoxide anion production and hydrogen peroxide content increased after toxin application.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- crude toxin from Cladosporium fulvumt0
- Interactor
- Cladosporium fulvumFulvia fulvat0pathogen
- Outcome
- Production rate of superoxide anion(O2-) and hydrogen peroxide(H2O2) contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Production rate of superoxide anion(O2-) and hydrogen peroxide(H2O2) content increased.”
t0“Induce of Crude Toxin from Cladosporium fulvum on Defense Enzyme and Activity Oxygen of Tomato Seedlings”
Claim · model-written summary
The increase ratio was higher and activity appeared earlier in the resistant variety than the susceptible variety.
- Taxon
- tomatoSolanum lycopersicumt0
- Material
- resistant varietye0
- Outcome
- Increasing ratioe0
- Direction
- highere0
- Comparator
- susceptible onee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing ratio in resistant variety was higher than that in susceptible one.The activity in the resistant variety appeared earlier than that in the susceptible one.”
t0“Induce of Crude Toxin from Cladosporium fulvum on Defense Enzyme and Activity Oxygen of Tomato Seedlings”
Claim · model-written summary
The authors related toxin-induced defense enzyme and active oxygen changes to tomato resistance.
- Taxon
- tomato seedlingsSolanum lycopersicume0
- Interactor
- Cladosporium fulvumFulvia fulvae0pathogen
- Outcome
- resistancee0
- Direction
- closely relatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Changes of defense enzyme and activity oxygen induced by toxin from Cladosporium fulvum in tomato seedlings were closely related to their resistance.”
t0“Induce of Crude Toxin from Cladosporium fulvum on Defense Enzyme and Activity Oxygen of Tomato Seedlings”
The same questions in other papers
Fulvia fulva · physiology: oxidative · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
pathogen product · physiology: oxidative · Solanum lycopersicum (tomato)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
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.