Abstract
Physiological regulation affects plant salinity tolerance. The objective of this research was to investigate the effect of salt stress on the physiological regulation in sorghum at early growth stage. Two sorghum genotypes (GT), Bayeqi (salt-tolerant) and PL212 (salt-sensitive), were grown in an artificial climate chamber with a nutrition solution containing 0，80, 160, and 240 mM NaCl. Results showed that salt-tolerant sorghumhad enhanced activities of antioxidant enzymes including catalase (CAT), peroxidase (POD), and superoxide dismutase (SOD), and increased stress-related osmolytes including free amino acids, and reducing and soluble sugars. Furthermore, ion regulation plays an important role in the osmotic adjustment. Results also suggest that K + /Na + and Ca 2+ /Na + ratios are associated with tolerance under salt-stressed environments and higher Na + and lower K + and Ca 2+ concentrations are deleterious to sorghum growth. As a result, under salt-stressed environments, the salt-tolerant sorghum GT had better growth performance than salt-sensitive sorghumGT, which was evidenced by a greater plant high, leaf area, leaf fresh weight, and root fresh weight. Overall, under salt-stressed environments, the salt-tolerant sorghum GT had better growth performance including yield than salt-sensitive sorghum GT, which was evidenced by a greater plant high, leaf area, leaf fresh weight, and root fresh weight
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Claims 9
Claim · model-written summary
Salt-tolerant sorghum showed enhanced activities of antioxidant enzymes (CAT, POD, SOD) under salt stress
- Material
- salt-tolerant sorghume1
- Treatment
- salt stresse0
- Gene
- catalase (CAT), peroxidase (POD), and superoxide dismutase (SOD)e1
- Outcome
- activities of antioxidant enzymese1
- Direction
- enhancede1
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sorghum genotypes”
e0“The objective of this research was to investigate the effect of salt stress on the physiological regulation in sorghum at early growth stage”
e1“Results showed that salt-tolerant sorghumhad enhanced activities of antioxidant enzymes including catalase (CAT), peroxidase (POD), and superoxide dismutase (SOD), and increased stress-related osmolytes including free amino acids, and reducing and soluble sugars”
Claim · model-written summary
Salt-tolerant sorghum showed increased stress-related osmolytes, including free amino acids and reducing and soluble sugars, under salt stress
- Material
- salt-tolerant sorghume1
- Treatment
- salt stresse0
- Outcome
- stress-related osmolytes including free amino acidse1
- Direction
- increasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sorghum genotypes”
e0“The objective of this research was to investigate the effect of salt stress on the physiological regulation in sorghum at early growth stage”
e1“Results showed that salt-tolerant sorghumhad enhanced activities of antioxidant enzymes including catalase (CAT), peroxidase (POD), and superoxide dismutase (SOD), and increased stress-related osmolytes including free amino acids, and reducing and soluble sugars”
Claim · model-written summary
Ion regulation plays an important role in the osmotic adjustment of sorghum under salt stress
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sorghum genotypes”
e2“Furthermore, ion regulation plays an important role in the osmotic adjustment”
Claim · model-written summary
K+/Na+ and Ca2+/Na+ ratios are associated with salt tolerance of sorghum under salt-stressed environments
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sorghum genotypes”
e3“Results also suggest that K + /Na + and Ca 2+ /Na + ratios are associated with tolerance under salt-stressed environments and higher Na + and lower K + and Ca 2+ concentrations are deleterious to sorghum growth”
Claim · model-written summary
Higher Na+ concentration is deleterious to sorghum growth under salt stress
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sorghum genotypes”
e3“Results also suggest that K + /Na + and Ca 2+ /Na + ratios are associated with tolerance under salt-stressed environments and higher Na + and lower K + and Ca 2+ concentrations are deleterious to sorghum growth”
Claim · model-written summary
Lower K+ and Ca2+ concentrations are deleterious to sorghum growth under salt stress
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sorghum genotypes”
e3“Results also suggest that K + /Na + and Ca 2+ /Na + ratios are associated with tolerance under salt-stressed environments and higher Na + and lower K + and Ca 2+ concentrations are deleterious to sorghum growth”
Claim · model-written summary
Under salt stress, salt-tolerant sorghum had greater plant height, leaf area and leaf fresh weight than salt-sensitive sorghum
- Material
- salt-tolerant sorghum GTe4
- Treatment
- salt-stressed environmentse4
- Outcome
- plant high, leaf area, leaf fresh weighte4
- Direction
- greatere4
- Comparator
- salt-sensitive sorghumGTe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sorghum genotypes”
e4“As a result, under salt-stressed environments, the salt-tolerant sorghum GT had better growth performance than salt-sensitive sorghumGT, which was evidenced by a greater plant high, leaf area, leaf fresh weight, and root fresh weight”
Claim · model-written summary
Under salt stress, salt-tolerant sorghum had greater root fresh weight than salt-sensitive sorghum
- Material
- salt-tolerant sorghum GTe4
- Treatment
- salt-stressed environmentse4
- Outcome
- root fresh weighte4
- Direction
- greatere4
- Comparator
- salt-sensitive sorghumGTe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sorghum genotypes”
e4“As a result, under salt-stressed environments, the salt-tolerant sorghum GT had better growth performance than salt-sensitive sorghumGT, which was evidenced by a greater plant high, leaf area, leaf fresh weight, and root fresh weight”
Claim · model-written summary
Under salt stress, salt-tolerant sorghum had better yield than salt-sensitive sorghum
- Material
- salt-tolerant sorghum GTe5
- Treatment
- salt-stressed environmentse5
- Outcome
- yielde5
- Direction
- bettere5
- Comparator
- salt-sensitive sorghum GTe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sorghum genotypes”
e5“Overall, under salt-stressed environments, the salt-tolerant sorghum GT had better growth performance including yield than salt-sensitive sorghum GT”
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10 papers in the same direction as this paper · 78 in the opposite direction
- negative
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See all 89 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.