Abstract
Abstract Six varieties of soybean (Glycine max L.) plants were grown for 30 days under three levels of sea salt salinity (0.0, 8.0 and 16.0 mS/cm 2 ) for studying the effect of sea salt on uptake of nitrate and response of the antioxidant system for these salinity doses. Salt treatments resulted in a gradual decline in nitrate uptake by increasing sea salt concentration, which mean that this will bring negative consequences on nitrogen assimilation. However, salt treatments induced the accumulation of hydrogen peroxide and glycinebetaine in the leaves of all soybean verities as an adaptive strategy to cope with salt stress. On the other hand, there was a differential response in phenolic compounds among soybean verities as a function of salt concentration and the studied variety, which means there has a decline in phenolics under salt stress in the varieties Crawford, G21, G22 and G83, but in contrary in G35 and G82, phenolics has accumulated in response to salinity. Isozymes electrophoretic banding showed changes in peroxidase activity with sea salt, however superoxide dismutase showed stability in number and intensity of bands with salt treatments. Esterase enzyme was more sensitive to salinity and showed a gradual decline in activity by increasing salt concentration.
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Claims 12
Claim · model-written summary
Soybean nitrate uptake gradually declined as sea salt concentration rose.
- Taxon
- soybean
Glycine maxt0 - Treatment
- Salt treatmentse0
- Outcome
- nitrate uptakee0
- Direction
- gradual declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salt treatments resulted in a gradual decline in nitrate uptake by increasing sea salt concentration”
t0“soybean”
Claim · model-written summary
Salt treatment induced leaf hydrogen peroxide accumulation in all soybean varieties.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- leavese0
- Treatment
- salt treatmentse0
- Outcome
- accumulation of hydrogen peroxidee0
- Direction
- accumulatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt treatments induced the accumulation of hydrogen peroxide and glycinebetaine in the leaves of all soybean verities”
t0“soybean”
Claim · model-written summary
Salt treatment induced leaf glycinebetaine accumulation in all soybean varieties.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- leavese0
- Treatment
- salt treatmentse0
- Outcome
- glycinebetainee0
- Direction
- accumulatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt treatments induced the accumulation of hydrogen peroxide and glycinebetaine in the leaves of all soybean verities”
t0“soybean”
Claim · model-written summary
Phenolics declined with salt stress in Crawford.
- Taxon
- soybeanGlycine maxt0
- Material
- Crawforde0
- Treatment
- salt stresse0
- Outcome
- phenolicse0
- Direction
- declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there has a decline in phenolics under salt stress in the varieties Crawford, G21, G22 and G83”
t0“soybean”
Claim · model-written summary
Phenolics declined with salt stress in G21.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there has a decline in phenolics under salt stress in the varieties Crawford, G21, G22 and G83”
t0“soybean”
Claim · model-written summary
Phenolics declined with salt stress in G22.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there has a decline in phenolics under salt stress in the varieties Crawford, G21, G22 and G83”
t0“soybean”
Claim · model-written summary
Phenolics declined with salt stress in G83.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there has a decline in phenolics under salt stress in the varieties Crawford, G21, G22 and G83”
t0“soybean”
Claim · model-written summary
Phenolics accumulated under salinity in G35.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in G35 and G82, phenolics has accumulated in response to salinity”
t0“soybean”
Claim · model-written summary
Phenolics accumulated under salinity in G82.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in G35 and G82, phenolics has accumulated in response to salinity”
t0“soybean”
Claim · model-written summary
Sea salt changed soybean peroxidase activity banding.
- Taxon
- soybeanGlycine maxt0
- Treatment
- sea salte0
- Gene
- peroxidasee0
- Outcome
- peroxidase activitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Isozymes electrophoretic banding showed changes in peroxidase activity with sea salt”
t0“soybean”
Claim · model-written summary
Superoxide dismutase band number and intensity remained stable under salt.
- Taxon
- soybeanGlycine maxt0
- Treatment
- salt treatmentse0
- Gene
- superoxide dismutasee0
- Outcome
- number and intensity of bandse0
- Direction
- stabilitye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“superoxide dismutase showed stability in number and intensity of bands with salt treatments”
t0“soybean”
Claim · model-written summary
Esterase activity declined gradually as salt concentration increased.
- Taxon
- soybeanGlycine maxt0
- Treatment
- salinitye0
- Gene
- Esterase enzymee0
- Outcome
- activitye0
- Direction
- gradual declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Esterase enzyme was more sensitive to salinity and showed a gradual decline in activity by increasing salt concentration”
t0“soybean”
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