Abstract
One of the most deleterious abiotic stresses is the salinity stress, which causes inhibition of growth and development. Therefore, this investigation was conducted with aim of evaluating the effects of sodium nitroprusside (SNP) and silicic acid (Si) on biochemical response of Solanum lycopersicum (cv. Isabella) under different levels of salinity during vegetative stage. For this purpose, the seedlings were subjected to the different levels of salt stress (0 , 25, 50,100, and 150mM) and supplemented with optimized concentration of silicon (Si) (0, 2.5mM) and sodium nitroprusside (SNP) (0, 100M) to assess variations in enzymatic and biochemical properties of tomato plant during vegetative growth. Salt stress inhibited the chlorophyll and carotenoid contents of tomato plants. The antioxidant enzyme activities such as catalase (CAT) and superoxide dismutase (SOD) as well as the levels of osmolytes (proline, glycine betaine), malondialdehyde (MDA), and hydrogen peroxide (H2O2) increased in tomato plants due to high salinity. Furthermore, the exogenous use of SNP and Si for salinizing the plants increased the antioxidant enzyme activities and osmolyte levels compared to NaCl-treated plants. In addition, in the plants under salt stress, which were supplemented with SNP and Si, the contents of MDA and H2O2 decreased compared to the plants treated with NaCl alone. Therefore, the exogenous use of Si and SNP led to protecting tomato plants against oxidative damage induced by salt stress by stimulating synthesis of antioxidant enzyme. Finally, under saline stress, plant growth improved. The findings indicated that with the improvement in antioxidative defense system, pigment syntheses, and osmolyte accumulation, SNP and Si had the ability to alleviate adverse impact of high salinity on tomato plant.
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Claims 8
Claim · model-written summary
Salt stress inhibited tomato chlorophyll and carotenoid contents.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- Salt stresse0
- Outcome
- chlorophyll and carotenoid contentse0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salt stress inhibited the chlorophyll and carotenoid contents of tomato plants”
Claim · model-written summary
High salinity increased tomato catalase and superoxide dismutase activities.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- high salinitye0
- Outcome
- catalase (CAT) and superoxide dismutase (SOD)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The antioxidant enzyme activities such as catalase (CAT) and superoxide dismutase (SOD) as well as the levels of osmolytes (proline, glycine betaine), malondialdehyde (MDA), and hydrogen peroxide (H2O2) increased in tomato plants due to high salinity”
Claim · model-written summary
High salinity increased tomato proline and glycine betaine levels.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- high salinitye0
- Outcome
- proline, glycine betainee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The antioxidant enzyme activities such as catalase (CAT) and superoxide dismutase (SOD) as well as the levels of osmolytes (proline, glycine betaine), malondialdehyde (MDA), and hydrogen peroxide (H2O2) increased in tomato plants due to high salinity”
Claim · model-written summary
High salinity increased tomato MDA and hydrogen peroxide levels.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- high salinitye0
- Outcome
- malondialdehyde (MDA), and hydrogen peroxide (H2O2)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“malondialdehyde (MDA), and hydrogen peroxide (H2O2) increased in tomato plants due to high salinity”
Claim · model-written summary
SNP and Si increased antioxidant enzyme activities and osmolyte levels relative to NaCl-treated tomato plants.
Verbatim
e0“the exogenous use of SNP and Si for salinizing the plants increased the antioxidant enzyme activities and osmolyte levels compared to NaCl-treated plants”
Claim · model-written summary
SNP and Si lowered MDA and hydrogen peroxide contents in salt-stressed tomato relative to NaCl alone.
Verbatim
e0“in the plants under salt stress, which were supplemented with SNP and Si, the contents of MDA and H2O2 decreased compared to the plants treated with NaCl alone”
Claim · model-written summary
SNP and Si were interpreted as protecting tomato from oxidative damage under salt stress by stimulating antioxidant enzyme synthesis.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Si and SNPe0
- Outcome
- oxidative damagee0
- Qualifier
- by stimulating synthesis of antioxidant enzymee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the exogenous use of Si and SNP led to protecting tomato plants against oxidative damage induced by salt stress by stimulating synthesis of antioxidant enzyme”
Claim · model-written summary
Tomato growth improved under saline stress with SNP and Si supplementation.
- Taxon
- Solanum lycopersicumSolanum lycopersicumt0
- Treatment
- sodium nitroprusside and silicont0
- Outcome
- plant growthe0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Finally, under saline stress, plant growth improved”
t0“Exogenous use of sodium nitroprusside and silicon to alleviate detrimentalNaCl impact in Solanum lycopersicum (cv. Isabella) during vegetative stage”
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See all 71 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.