Abstract
After 400 mM of NaCl treatment, 0.1 and 1.0 mM of silicon (Si) were added to Kentucky bluegrass, ‘Perfection’ and ‘Midnight,’ to identify the effect of Si on the antioxidant defense mechanisms and inorganic ions as a parameter in the salt stress on grass. Compared to the control, the NaCl treatment caused a significant decrease in the shoot length and the fresh and dry weight of shoot and root of the both types of Kentucky bluegrass. Adding Si after the NaCl treatment increased the growth and dry and fresh weight of shoot and root in the grass. In both types, the Na+ concentration significantly increased after the NaCl-only treatment compared to control and decreased dramatically after 0.1 and 1.0 mM Si were added following the NaCl treatment compared to the NaCl-only treatment. K+ and Si concentrations remarkably increased in the shoot and root when Si was added after NaCl treatment. There was a significant reduction in the oxygen radical absorption capacity and the total phenolic compounds in the both types. Compared to the NaCl-only treatment, higher glutathione and lower proline concentrations were observed in the plant treated with Si after NaCl treatment. These results suggest that, even though Si is not generally classified as ‘essential element’, Si may have a significant involvement in the antioxidant defense mechanisms and inorganic ions in the salt stress on grass. Key words: diphenyl-1-picrylhydrazyl (DPPH), total phenolic concentration, proline, salt stress.
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Claims 9
Claim · model-written summary
NaCl significantly reduced shoot length and shoot and root fresh and dry weight in both cultivars.
- Taxon
- Kentucky bluegrass
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Poa pratensise0 - Treatment
- NaCl treatmente0
- Outcome
- shoot length and the fresh and dry weight of shoot and roote0
- Direction
- decreasee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Compared to the control, the NaCl treatment caused a significant decrease in the shoot length and the fresh and dry weight of shoot and root of the both types of Kentucky bluegrass.”
Claim · model-written summary
Silicon following NaCl increased shoot and root growth and fresh and dry weight.
- Taxon
- Kentucky bluegrassPoa pratensist0
- Treatment
- Adding Si after the NaCl treatmente0
- Outcome
- growth and dry and fresh weight of shoot and roote0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Adding Si after the NaCl treatment increased the growth and dry and fresh weight of shoot and root in the grass.”
t0“Kentucky bluegrass”
Claim · model-written summary
NaCl alone significantly raised Na+ concentration in both cultivars relative to control.
- Taxon
- Kentucky bluegrassPoa pratensist0
- Treatment
- NaCl-only treatmente0
- Outcome
- Na+ concentratione0
- Direction
- increasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In both types, the Na+ concentration significantly increased after the NaCl-only treatment compared to control”
t0“Kentucky bluegrass”
Claim · model-written summary
Silicon after NaCl dramatically lowered Na+ concentration relative to NaCl alone.
- Taxon
- Kentucky bluegrassPoa pratensist0
- Treatment
- 0.1 and 1.0 mM Sie0
- Outcome
- Na+ concentratione1
- Direction
- decreased dramaticallye0
- Comparator
- NaCl-only treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased dramatically after 0.1 and 1.0 mM Si were added following the NaCl treatment compared to the NaCl-only treatment”
e1“Na+ concentration”
t0“Kentucky bluegrass”
Claim · model-written summary
Silicon after NaCl increased shoot and root K+ concentrations.
- Taxon
- Kentucky bluegrassPoa pratensist0
- Organ / stage
- shoot and roote0
- Treatment
- Si was added after NaCl treatmente0
- Outcome
- K+e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“K+ and Si concentrations remarkably increased in the shoot and root when Si was added after NaCl treatment.”
t0“Kentucky bluegrass”
Claim · model-written summary
Silicon after NaCl increased shoot and root Si concentrations.
- Taxon
- Kentucky bluegrassPoa pratensist0
- Organ / stage
- shoot and roote0
- Treatment
- Si was added after NaCl treatmente0
- Outcome
- Si concentrationse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“K+ and Si concentrations remarkably increased in the shoot and root when Si was added after NaCl treatment.”
t0“Kentucky bluegrass”
Claim · model-written summary
Oxygen radical absorption capacity and total phenolic compounds were significantly reduced in both cultivars.
- Taxon
- Kentucky bluegrassPoa pratensist0
- Outcome
- oxygen radical absorption capacity and the total phenolic compoundse0
- Direction
- reductione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a significant reduction in the oxygen radical absorption capacity and the total phenolic compounds in the both types.”
t0“Kentucky bluegrass”
Claim · model-written summary
Silicon after NaCl raised glutathione relative to NaCl alone.
- Taxon
- Kentucky bluegrassPoa pratensist0
- Treatment
- Si after NaCl treatmente0
- Outcome
- glutathionee0
- Direction
- highere0
- Comparator
- NaCl-only treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the NaCl-only treatment, higher glutathione and lower proline concentrations were observed in the plant treated with Si after NaCl treatment.”
t0“Kentucky bluegrass”
Claim · model-written summary
Silicon after NaCl lowered proline concentrations relative to NaCl alone.
- Taxon
- Kentucky bluegrassPoa pratensist0
- Treatment
- Si after NaCl treatmente0
- Outcome
- proline concentrationse0
- Direction
- lowere0
- Comparator
- NaCl-only treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the NaCl-only treatment, higher glutathione and lower proline concentrations were observed in the plant treated with Si after NaCl treatment.”
t0“Kentucky bluegrass”
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See all 7 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.