Abstract
Aluminum (Al) toxicity is one of the main growth and yield limiting factors for barley grown on acid soils. Silicon (Si) ameliorates Al toxicity as well as it promotes the phenolic compounds production that have antioxidant or structural role. We evaluated the time-dependent kinetics of Al and Si uptake and the impact of Si on the production of antioxidant- or structural- phenols in barley cultivars at the short-term. Two barley cultivars with contrasting Al tolerance (Hordeum vulgare ‘Sebastian’, Al tolerant; and H. vulgare ‘Scarlett’, Al sensitive), exposed to either −Al (0 mM) or +Al (0.2 mM) nutrient solutions without Si (−Si) or with 2 mM (+Si) were cultured for 48 h. Aluminum and Si concentration decreased in plants at all harvest times when Al and Si were simultaneously supplied; this effect was more noticeable in ‘Scarlett’. Nevertheless, Si influenced the antioxidant system of barley irrespective of the Al tolerance of the cultivar, decreasing oxidative damage and enhancing radical scavenging activity, the production of phenolic compounds, and lignin accumulation in barley with short-term exposure to Al.
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Claims 6
Claim · model-written summary
Simultaneous Al and Si supply decreased Al concentration in barley, especially Scarlett.
- Taxon
- Barley
.jpg?width=60)
Hordeum vulgaret0 - Material
- ‘Scarlett’e0
- Treatment
- Al and Si were simultaneously suppliede0
- Outcome
- Aluminume0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Aluminum and Si concentration decreased in plants at all harvest times when Al and Si were simultaneously supplied; this effect was more noticeable in ‘Scarlett’.”
t0“Barley Cultivars”
Claim · model-written summary
Simultaneous Al and Si supply decreased Si concentration, especially Scarlett.
- Taxon
- BarleyHordeum vulgaret0
- Material
- ‘Scarlett’e0
- Treatment
- Al and Si were simultaneously suppliede0
- Outcome
- Si concentratione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aluminum and Si concentration decreased in plants at all harvest times when Al and Si were simultaneously supplied; this effect was more noticeable in ‘Scarlett’.”
t0“Barley Cultivars”
Claim · model-written summary
Si decreased oxidative damage in barley under short-term Al exposure.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- Sie0
- Outcome
- oxidative damagee0
- Direction
- decreasinge0
- Qualifier
- short-term exposure to Ale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si influenced the antioxidant system of barley irrespective of the Al tolerance of the cultivar, decreasing oxidative damage and enhancing radical scavenging activity, the production of phenolic compounds, and lignin accumulation in barley with short-term exposure to Al.”
Claim · model-written summary
Si enhanced radical scavenging activity under short-term Al exposure.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- Sie0
- Outcome
- radical scavenging activitye0
- Direction
- enhancinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si influenced the antioxidant system of barley irrespective of the Al tolerance of the cultivar, decreasing oxidative damage and enhancing radical scavenging activity, the production of phenolic compounds, and lignin accumulation in barley with short-term exposure to Al.”
Claim · model-written summary
Si enhanced phenolic compound production under short-term Al exposure.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- Sie0
- Outcome
- production of phenolic compoundse0
- Direction
- enhancinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si influenced the antioxidant system of barley irrespective of the Al tolerance of the cultivar, decreasing oxidative damage and enhancing radical scavenging activity, the production of phenolic compounds, and lignin accumulation in barley with short-term exposure to Al.”
Claim · model-written summary
Si enhanced lignin accumulation under short-term Al exposure.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- Sie0
- Outcome
- lignin accumulatione0
- Direction
- enhancinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si influenced the antioxidant system of barley irrespective of the Al tolerance of the cultivar, decreasing oxidative damage and enhancing radical scavenging activity, the production of phenolic compounds, and lignin accumulation in barley with short-term exposure to Al.”
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