Abstract
Abstract The present study was aimed to investigate the protective role of silicon (Si) from salt‐induced damages in alfalfa. Seedlings were treated with 200 mM NaCl plus three silicon levels (0, 0.75 and 1.5 mM) for 1 week. We observed that salt stress impacted plant growth remarkably, including height, root length, stem and leave weight, aboveground biomass and total biomass, chlorophyll a (chl a), chlorophyll b (chl b), total chlorophyll (total chl), chlorophyll fluorescence, K concentration and K/Na ratio. Consequently, electrolyte leakage (EL), superoxide dismutase (SOD) activity, Na concentration, proline, malondialdehyde (MDA), soluble sugar (SS) and soluble protein (SP) content were found to be raised significantly. After exogenously applying Si under salt stress, the EL, MDA, proline and Na content, except SOD activity, were observed to be dropped. Meanwhile, the chl a, chl b, and total chl and SS content, and chlorophyll fluorescence were found to be elevated. In terms of Si concentration, we found that the protective effects of Si were considerably better at lower concentration (0.75 mM) than higher (1.5 mM) one. Collectively, our results suggested that Si alleviate salt‐induced damage and promote alfalfa growth by changing physiological characteristics.
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Claims 12
Claim · model-written summary
Salt stress impaired alfalfa growth, including height, root length and biomass.
- Taxon
- alfalfa
Medicago sativat0 - Treatment
- salt stresse0
- Outcome
- plant growthe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt stress impacted plant growth remarkably, including height, root length, stem and leave weight, aboveground biomass and total biomass”
t0“alfalfa”
e1“Seedlings were treated with 200 mM NaCl plus three silicon levels (0, 0.75 and 1.5 mM) for 1 week”
Claim · model-written summary
Salt stress affected chlorophyll and fluorescence.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- 200 mM NaCle1
- Outcome
- chlorophyll a (chl a), chlorophyll b (chl b), total chlorophyll (total chl)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll a (chl a), chlorophyll b (chl b), total chlorophyll (total chl), chlorophyll fluorescence”
t0“alfalfa”
e1“Seedlings were treated with 200 mM NaCl plus three silicon levels (0, 0.75 and 1.5 mM) for 1 week”
Claim · model-written summary
Salt stress affected potassium concentration and potassium to sodium ratio.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- 200 mM NaCle1
- Outcome
- K concentration and K/Na ratioe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“K concentration and K/Na ratio”
t0“alfalfa”
e1“Seedlings were treated with 200 mM NaCl plus three silicon levels (0, 0.75 and 1.5 mM) for 1 week”
Claim · model-written summary
Salt stress significantly raised electrolyte leakage and SOD activity.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- 200 mM NaCle1
- Outcome
- electrolyte leakage (EL), superoxide dismutase (SOD) activitye0
- Direction
- raisede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“electrolyte leakage (EL), superoxide dismutase (SOD) activity, Na concentration, proline, malondialdehyde (MDA), soluble sugar (SS) and soluble protein (SP) content were found to be raised significantly”
t0“alfalfa”
e1“Seedlings were treated with 200 mM NaCl plus three silicon levels (0, 0.75 and 1.5 mM) for 1 week”
Claim · model-written summary
Salt stress significantly raised sodium, proline and malondialdehyde.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- 200 mM NaCle1
- Outcome
- Na concentration, proline, malondialdehyde (MDA)e0
- Direction
- raisede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Na concentration, proline, malondialdehyde (MDA), soluble sugar (SS) and soluble protein (SP) content were found to be raised significantly”
t0“alfalfa”
e1“Seedlings were treated with 200 mM NaCl plus three silicon levels (0, 0.75 and 1.5 mM) for 1 week”
Claim · model-written summary
Salt stress significantly raised soluble sugar and protein content.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- 200 mM NaCle1
- Outcome
- soluble sugar (SS) and soluble protein (SP) contente0
- Direction
- raisede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soluble sugar (SS) and soluble protein (SP) content were found to be raised significantly”
t0“alfalfa”
e1“Seedlings were treated with 200 mM NaCl plus three silicon levels (0, 0.75 and 1.5 mM) for 1 week”
Claim · model-written summary
Silicon under salt stress reduced electrolyte leakage, malondialdehyde and proline.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- exogenously applying Si under salt stresse0
- Outcome
- EL, MDA, prolinee0
- Direction
- droppede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After exogenously applying Si under salt stress, the EL, MDA, proline and Na content, except SOD activity, were observed to be dropped”
t0“alfalfa”
e1“Seedlings were treated with 200 mM NaCl plus three silicon levels (0, 0.75 and 1.5 mM) for 1 week”
Claim · model-written summary
Silicon under salt stress reduced sodium content.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- exogenously applying Si under salt stresse0
- Outcome
- Na contente0
- Direction
- droppede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After exogenously applying Si under salt stress, the EL, MDA, proline and Na content, except SOD activity, were observed to be dropped”
t0“alfalfa”
e1“Seedlings were treated with 200 mM NaCl plus three silicon levels (0, 0.75 and 1.5 mM) for 1 week”
Claim · model-written summary
SOD activity was the exception to the silicon-related decreases.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- silicone1
- Outcome
- SOD activitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“except SOD activity, were observed to be dropped”
t0“alfalfa”
e1“Seedlings were treated with 200 mM NaCl plus three silicon levels (0, 0.75 and 1.5 mM) for 1 week”
Claim · model-written summary
Silicon under salt stress increased chlorophyll a, b and total chlorophyll.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- silicone1
- Outcome
- chl a, chl b, and total chle0
- Direction
- elevatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the chl a, chl b, and total chl and SS content, and chlorophyll fluorescence were found to be elevated”
t0“alfalfa”
e1“Seedlings were treated with 200 mM NaCl plus three silicon levels (0, 0.75 and 1.5 mM) for 1 week”
Claim · model-written summary
Silicon under salt stress increased soluble sugar and chlorophyll fluorescence.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- silicone1
- Outcome
- SS content, and chlorophyll fluorescencee0
- Direction
- elevatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SS content, and chlorophyll fluorescence were found to be elevated”
t0“alfalfa”
e1“Seedlings were treated with 200 mM NaCl plus three silicon levels (0, 0.75 and 1.5 mM) for 1 week”
Claim · model-written summary
Silicon was more protective at 0.75 than 1.5 mM.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- lower concentration (0.75 mM)e0
- Outcome
- protective effectse0
- Direction
- bettere0
- Comparator
- higher (1.5 mM)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“protective effects of Si were considerably better at lower concentration (0.75 mM) than higher (1.5 mM) one”
t0“alfalfa”
e1“Seedlings were treated with 200 mM NaCl plus three silicon levels (0, 0.75 and 1.5 mM) for 1 week”
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