Abstract
Drought stress is one of the main stresses that inhibit the growth of plants due to mainly disturbance of the balance between production of ROS and antioxidant defense mechanism and causing oxidative stress. Sodium nitroprusside (SNP) commonly was used as nitric oxide (NO) donor in plants. In this study, the effect of different concentrations of SNP on alleviation of oxidative stress induced by drought was investigated. Results of the measurements of lipid peroxidation and photosynthetic pigments content showed that low concentration of SNP could protect plants against oxidative stress because under SNP treatment, lipid peroxidation decreased and pigment loss was ameliorated. In this study, the relationship between this defense mechanisms and activity of antioxidant enzymes was investigated. Results showed that drought stress increased the activity of ascorbate peroxidase, guaiacol peroxidase and catalase. Concentration of 100 and 200 µM of SNP increased the activity of APX had no effect on activity of GPX and decreased the activity of CAT in plant under drought stress. In plants which were under drought stress the activity of PAL also increased but the concentration of 100 and 200 µM of SNP had no effect on activity of these enzymes under drought stress. The concentration of 500 µM of SNP decreased the activity of PAL in drought stressed plants. Drought stress and 100 µM SNP treatments had no significant effects on phenol content and 100 and 200 µM of SNP decreased the amount of these compounds under drought stress. In conclusion, in tomato plants, pretreatment with concentration of 100 µM of SNP or below could protect the plants under drought stress, probably through the contracts with ROS and or induction of anti-oxidative enzymes.
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Claims 13
Claim · model-written summary
SNP treatment decreased lipid peroxidation in drought-stressed tomato plants.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- SNP treatmente1
- Outcome
- lipid peroxidatione1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN TOMATO PLANT”
e1“under SNP treatment, lipid peroxidation decreased and pigment loss was ameliorated”
Claim · model-written summary
SNP treatment ameliorated the loss of photosynthetic pigments in drought-stressed tomato plants.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- SNP treatmente1
- Outcome
- pigment losse1
- Direction
- amelioratede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN TOMATO PLANT”
e1“under SNP treatment, lipid peroxidation decreased and pigment loss was ameliorated”
Claim · model-written summary
Drought stress increased the activity of ascorbate peroxidase, guaiacol peroxidase and catalase in tomato.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- drought stresse2
- Outcome
- activity of ascorbate peroxidase, guaiacol peroxidase and catalasee2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN TOMATO PLANT”
e2“Results showed that drought stress increased the activity of ascorbate peroxidase, guaiacol peroxidase and catalase”
Claim · model-written summary
Pretreatment with 100 and 200 µM SNP increased ascorbate peroxidase (APX) activity under drought.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 100 and 200 µM of SNPe3
- Outcome
- activity of APXe3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN TOMATO PLANT”
e3“Concentration of 100 and 200 µM of SNP increased the activity of APX had no effect on activity of GPX and decreased the activity of CAT in plant under drought stress”
Claim · model-written summary
100 and 200 µM SNP had no effect on guaiacol peroxidase (GPX) activity under drought.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 100 and 200 µM of SNPe3
- Outcome
- activity of GPXe3
- Direction
- no effecte3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN TOMATO PLANT”
e3“Concentration of 100 and 200 µM of SNP increased the activity of APX had no effect on activity of GPX and decreased the activity of CAT in plant under drought stress”
Claim · model-written summary
100 and 200 µM SNP decreased catalase (CAT) activity under drought.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 100 and 200 µM of SNPe3
- Outcome
- activity of CATe3
- Direction
- decreasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN TOMATO PLANT”
e3“Concentration of 100 and 200 µM of SNP increased the activity of APX had no effect on activity of GPX and decreased the activity of CAT in plant under drought stress”
Claim · model-written summary
Drought stress increased phenylalanine ammonia-lyase (PAL) activity in tomato.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- drought stresse4
- Outcome
- activity of PALe4
- Direction
- increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN TOMATO PLANT”
e4“In plants which were under drought stress the activity of PAL also increased but the concentration of 100 and 200 µM of SNP had no effect on activity of these enzymes under drought stress”
Claim · model-written summary
100 and 200 µM SNP had no effect on PAL activity under drought stress.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 100 and 200 µM of SNPe4
- Outcome
- activity of these enzymese4
- Direction
- no effecte4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN TOMATO PLANT”
e4“In plants which were under drought stress the activity of PAL also increased but the concentration of 100 and 200 µM of SNP had no effect on activity of these enzymes under drought stress”
Claim · model-written summary
500 µM SNP decreased PAL activity in drought-stressed tomato.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 500 µM of SNPe5
- Outcome
- activity of PALe5
- Direction
- decreasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN TOMATO PLANT”
e5“The concentration of 500 µM of SNP decreased the activity of PAL in drought stressed plants”
Claim · model-written summary
Drought stress had no significant effect on phenol content.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Drought stresse6
- Outcome
- phenol contente6
- Direction
- no significant effectse6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN TOMATO PLANT”
e6“Drought stress and 100 µM SNP treatments had no significant effects on phenol content”
Claim · model-written summary
100 µM SNP had no significant effect on phenol content.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 100 µM SNPe6
- Outcome
- phenol contente6
- Direction
- no significant effectse6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN TOMATO PLANT”
e6“Drought stress and 100 µM SNP treatments had no significant effects on phenol content”
Claim · model-written summary
100 and 200 µM SNP decreased the amount of phenolic compounds under drought stress.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 100 and 200 µM of SNPe7
- Outcome
- amount of these compoundse7
- Direction
- decreasede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN TOMATO PLANT”
e7“100 and 200 µM of SNP decreased the amount of these compounds under drought stress”
Claim · model-written summary
Pretreatment with 100 µM SNP or below is recommended to protect tomato plants under drought stress.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- pretreatment with concentration of 100 µM of SNP or belowe0
- Outcome
- protect the plants under drought stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“IN TOMATO PLANT”
e0“in tomato plants, pretreatment with concentration of 100 µM of SNP or below could protect the plants under drought stress”
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See all 22 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.