Abstract
Little is known about the impact of salicylic acid in sorghum under salt stress. Sorghum genotype HJ 513 was used for the experiment, which was carried out as factorial in a completely randomized design. Plants were grown in screen houses under four salt levels (0, 5.0, 7.5 and 10.0 dS m-1 NaCl) and three salicylic acid, SA (0, 25 and 50 ppm) levels with twelve different combinations. Sorghum leaves were harvested at bloom stage (80 DAS) and assayed for electrolytic leakage percentage (ELP) i.e. 93.81% in HJ 513, osmolytes content (Proline value increased from 59.75 to 86.56 (µg g-1 DW) in HJ 513 under 10 dS m-1 with respect to control, total soluble carbohydrate content also increased from control to 10 dS m-1 i.e. 0.21 to 0.42 (mg g-1 DW) in HJ 513, glycine betaine content increased from control to 10 dS m-1 i.e. 135.67 to 286.63 (µmole g-1 DW) in HJ 513 The specific activities of the superoxide dismutase, catalase and peroxidase under salt stress (10 dS m-1) increased 69.12%, 255.29% and 92.65% in HJ 513 respectively. Compared with the plants treated with salt alone, added salicylic acid significantly decreased ELP and significantly enhanced osmolytes concentration and also the antioxidant enzymatic activity in salt-stressed leaves of that genotype. That SA effect was time-dependent and became stronger as the experiment continued. It could be concluded that higher activities of SOD, CAT and POX in salt-stressed leaves induced by SA addition may protect the plant tissues from membrane oxidative damage under salt stress, thus mitigating salt toxicity and improving the growth of sorghum plants. The results of the present experiment coincided with the conclusion that SA may be involved in metabolic or physiological changes in plants
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Claims 9
Claim · model-written summary
Salt stress increased proline content from 59.75 to 86.56 µg g-1 DW.
- Material
- HJ 513e0
- Treatment
- 10 dS m-1e0
- Outcome
- Proline valuee0
- Direction
- increasede0
- Value
- 59.75 to 86.56 (µg g-1 DW)e0
- Comparator
- controle0
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Proline value increased from 59.75 to 86.56 (µg g-1 DW) in HJ 513 under 10 dS m-1 with respect to control”
t0“Sorghum”
Claim · model-written summary
Salt stress increased total soluble carbohydrate content from 0.21 to 0.42 mg g-1 DW.
- Material
- HJ 513e0
- Treatment
- 10 dS m-1e0
- Outcome
- total soluble carbohydrate contente0
- Direction
- increasede0
- Value
- 0.21 to 0.42 (mg g-1 DW)e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total soluble carbohydrate content also increased from control to 10 dS m-1 i.e. 0.21 to 0.42 (mg g-1 DW) in HJ 513”
t0“Sorghum”
Claim · model-written summary
Salt stress increased glycine betaine content from 135.67 to 286.63 µmole g-1 DW.
- Material
- HJ 513e0
- Treatment
- 10 dS m-1e0
- Outcome
- glycine betaine contente0
- Direction
- increasede0
- Value
- 135.67 to 286.63 (µmole g-1 DW)e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“glycine betaine content increased from control to 10 dS m-1 i.e. 135.67 to 286.63 (µmole g-1 DW) in HJ 513”
t0“Sorghum”
Claim · model-written summary
Salt stress increased superoxide dismutase activity by 69.12%.
- Material
- HJ 513e0
- Treatment
- salt stress (10 dS m-1)e0
- Outcome
- superoxide dismutasee0
- Direction
- increasede0
- Value
- 69.12%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“specific activities of the superoxide dismutase, catalase and peroxidase under salt stress (10 dS m-1) increased 69.12%, 255.29% and 92.65% in HJ 513 respectively”
t0“Sorghum”
Claim · model-written summary
Salt stress increased catalase activity by 255.29%.
- Material
- HJ 513e0
- Treatment
- salt stress (10 dS m-1)e0
- Outcome
- catalasee0
- Direction
- increasede0
- Value
- 255.29%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“specific activities of the superoxide dismutase, catalase and peroxidase under salt stress (10 dS m-1) increased 69.12%, 255.29% and 92.65% in HJ 513 respectively”
t0“Sorghum”
Claim · model-written summary
Salt stress increased peroxidase activity by 92.65%.
- Material
- HJ 513e0
- Treatment
- salt stress (10 dS m-1)e0
- Outcome
- peroxidasee0
- Direction
- increasede0
- Value
- 92.65%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“specific activities of the superoxide dismutase, catalase and peroxidase under salt stress (10 dS m-1) increased 69.12%, 255.29% and 92.65% in HJ 513 respectively”
t0“Sorghum”
Claim · model-written summary
Added salicylic acid decreased electrolyte leakage under salt stress.
- Treatment
- added salicylic acide0
- Outcome
- ELPe0
- Direction
- decreasede0
- Comparator
- plants treated with salt alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with the plants treated with salt alone, added salicylic acid significantly decreased ELP”
t0“Sorghum”
Claim · model-written summary
Added salicylic acid increased osmolyte concentration and antioxidant enzyme activity under salt stress.
- Organ / stage
- leavese0
- Treatment
- added salicylic acide0
- Outcome
- osmolytes concentration and also the antioxidant enzymatic activitye0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“added salicylic acid significantly decreased ELP and significantly enhanced osmolytes concentration and also the antioxidant enzymatic activity in salt-stressed leaves”
t0“Sorghum”
Claim · model-written summary
The salicylic acid effect strengthened over the experiment.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“That SA effect was time-dependent and became stronger as the experiment continued”
t0“Sorghum”
The same questions in other papers
salicylic acid · physiology: osmolytes · SorghumResults agree
2 papers in the same direction as this paper
- positive
- positive
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.