Abstract
The present study was carried out using Dinçer and Olas safflower varieties at 5 different salt (NaCl) concentrations (0, 50, 100, 150, and 200 mM) for 14 days. The germination percentages of the cultivars under salt conditions as well as the activities of antioxidant enzymes (SOD, CAT, POD and APX) and biochemical changes (protein and MDA) in the seedlings were determined. The germination percentage decreased with increased salt concentrations, and the greatest decrease in germination percentage was observed at a 200 mM salt concentration by 34% in both cultivars. The activity of superoxide dismutase (SOD) increased at low salt concentrations, but decreased after 100 and 150 mM salt concentrations, respectively. Catalase (CAT) and ascorbate peroxidase (APX) activities, as well as malondialdehyde (MDA) and hydrogen peroxide (H2O2) contents, increased with increasing salt concentrations at Dinçer and Olas, but total soluble protein content decreased with increasing salt concentration. Peroxidase (POD) activity was not significantly affected by salt stress in safflower. Germination percentage showed negative correlations with CAT, MDA and H2O2 levels, and showed a positive correlation with soluble protein content under salt stress in safflower. The present results may be useful to identify mechanisms of salt tolerance involving antioxidant enzyme activities and biochemical changes in safflower seedlings.
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Claims 9
Claim · model-written summary
Germination fell as salt concentration rose in both safflower cultivars, with a 34% decrease at 200 mM.
- Taxon
- Safflower
Carthamus tinctoriust0 - Material
- both cultivarse0
- Treatment
- 200 mM salt concentratione0
- Outcome
- germination percentagee0
- Direction
- decreasede0
- Value
- 34%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The germination percentage decreased with increased salt concentrations, and the greatest decrease in germination percentage was observed at a 200 mM salt concentration by 34% in both cultivars.”
t0“Safflower (Carthamus tinctorius L.)”
Claim · model-written summary
SOD activity rose at low salt concentrations and fell after 100 and 150 mM.
- Treatment
- low salt concentrationse0
- Outcome
- activity of superoxide dismutase (SOD)e0
- Direction
- increasede0
Not reportedTaxonComparator
Verbatim
e0“The activity of superoxide dismutase (SOD) increased at low salt concentrations, but decreased after 100 and 150 mM salt concentrations, respectively.”
Claim · model-written summary
SOD activity decreased after 100 and 150 mM salt concentrations.
- Treatment
- 100 and 150 mM salt concentrationse0
- Outcome
- activity of superoxide dismutase (SOD)e0
- Direction
- decreasede0
Not reportedTaxonComparator
Verbatim
e0“The activity of superoxide dismutase (SOD) increased at low salt concentrations, but decreased after 100 and 150 mM salt concentrations, respectively.”
Claim · model-written summary
CAT and APX activities rose with salt concentration in Dinçer and Olas.
- Material
- Dinçer and Olase0
- Treatment
- increasing salt concentrationse0
- Outcome
- Catalase (CAT) and ascorbate peroxidase (APX) activitiese0
- Direction
- increasede0
Not reportedTaxonComparator
Verbatim
e0“Catalase (CAT) and ascorbate peroxidase (APX) activities, as well as malondialdehyde (MDA) and hydrogen peroxide (H2O2) contents, increased with increasing salt concentrations at Dinçer and Olas, but total soluble protein content decreased with increasing salt concentration.”
Claim · model-written summary
MDA and H2O2 contents rose with salt concentration in Dinçer and Olas.
- Material
- Dinçer and Olase0
- Treatment
- increasing salt concentrationse0
- Outcome
- malondialdehyde (MDA) and hydrogen peroxide (H2O2) contentse0
- Direction
- increasede0
Not reportedTaxonComparator
Verbatim
e0“malondialdehyde (MDA) and hydrogen peroxide (H2O2) contents, increased with increasing salt concentrations at Dinçer and Olas”
Claim · model-written summary
Total soluble protein content declined as salt concentration rose.
Not reportedTaxonComparator
Verbatim
e0“total soluble protein content decreased with increasing salt concentration”
Claim · model-written summary
Salt stress did not significantly affect safflower POD activity.
- Taxon
- safflowerCarthamus tinctoriuse0
- Treatment
- salt stresse0
- Outcome
- Peroxidase (POD) activitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peroxidase (POD) activity was not significantly affected by salt stress in safflower.”
Claim · model-written summary
Germination percentage correlated negatively with CAT, MDA and H2O2 levels under salt stress.
- Taxon
- safflowerCarthamus tinctoriuse0
- Treatment
- salt stresse0
- Compound
- CAT, MDA and H2O2e0
- Outcome
- Germination percentagee0
- Direction
- negative correlationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Germination percentage showed negative correlations with CAT, MDA and H2O2 levels, and showed a positive correlation with soluble protein content under salt stress in safflower.”
Claim · model-written summary
Germination percentage correlated positively with soluble protein content under salt stress.
- Taxon
- safflowerCarthamus tinctoriuse0
- Treatment
- salt stresse0
- Compound
- soluble protein contente0
- Outcome
- Germination percentagee0
- Direction
- positive correlatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Germination percentage showed negative correlations with CAT, MDA and H2O2 levels, and showed a positive correlation with soluble protein content under salt stress in safflower.”
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