Abstract
The nutrient solution experiment was undertaken in the present study to assess the effect of exogenous ascorbic acid(AsA)in alleviating Al toxicity of two barley seedlings differing in Al tolerance.The results showed that,as compared with single Al stress,spraying 0.01,0.05,and 0.25 mmol/L AsA increased plant height,biomass and chlorophyll contents,while decreased the contents of malondialdehyde(MDA) and soluble sugar,as well as the activities of peroxidase(POD) and superoxide dismutase(SOD).However,spraying 0.5 mmol/L AsA decreased plant growth and increased oxidative stress.Thus,it could be concluded that appropriate concentration of exogenous AsA could alleviate the growth inhibition and oxidative stress caused by Al in barley seedlings,especially for the Al-sensitive genotypes.The optimum concentration of AsA was 0.25 mmol/L for the best alleviation of Al stressed plants in this study.
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Claims 10
Claim · model-written summary
AsA increased plant height under Al stress.
- Taxon
- Barley
.jpg?width=60)
Hordeum vulgaret0 - Treatment
- spraying 0.01,0.05,and 0.25 mmol/L AsAe0
- Outcome
- plant heighte0
- Direction
- increasede0
- Comparator
- single Al stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“as compared with single Al stress,spraying 0.01,0.05,and 0.25 mmol/L AsA increased plant height,biomass and chlorophyll contents”
t0“Barley Seedlings”
Claim · model-written summary
AsA increased biomass under Al stress.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- spraying 0.01,0.05,and 0.25 mmol/L AsAe0
- Outcome
- biomasse0
- Direction
- increasede0
- Comparator
- single Al stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as compared with single Al stress,spraying 0.01,0.05,and 0.25 mmol/L AsA increased plant height,biomass and chlorophyll contents”
t0“Barley Seedlings”
Claim · model-written summary
AsA increased chlorophyll contents under Al stress.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- spraying 0.01,0.05,and 0.25 mmol/L AsAe0
- Outcome
- chlorophyll contentse0
- Direction
- increasede0
- Comparator
- single Al stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as compared with single Al stress,spraying 0.01,0.05,and 0.25 mmol/L AsA increased plant height,biomass and chlorophyll contents”
t0“Barley Seedlings”
Claim · model-written summary
AsA decreased contents of malondialdehyde(MDA) under Al stress.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- spraying 0.01,0.05,and 0.25 mmol/L AsAe0
- Outcome
- contents of malondialdehyde(MDA)e0
- Direction
- decreasede0
- Comparator
- single Al stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as compared with single Al stress,spraying 0.01,0.05,and 0.25 mmol/L AsA increased plant height,biomass and chlorophyll contents,while decreased the contents of malondialdehyde(MDA) and soluble sugar,as well as the activities of peroxidase(POD) and superoxide dismutase(SOD)”
t0“Barley Seedlings”
Claim · model-written summary
AsA decreased soluble sugar under Al stress.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- spraying 0.01,0.05,and 0.25 mmol/L AsAe0
- Outcome
- soluble sugare0
- Direction
- decreasede0
- Comparator
- single Al stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as compared with single Al stress,spraying 0.01,0.05,and 0.25 mmol/L AsA increased plant height,biomass and chlorophyll contents,while decreased the contents of malondialdehyde(MDA) and soluble sugar,as well as the activities of peroxidase(POD) and superoxide dismutase(SOD)”
t0“Barley Seedlings”
Claim · model-written summary
AsA decreased activities of peroxidase(POD) under Al stress.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- spraying 0.01,0.05,and 0.25 mmol/L AsAe0
- Outcome
- activities of peroxidase(POD)e0
- Direction
- decreasede0
- Comparator
- single Al stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as compared with single Al stress,spraying 0.01,0.05,and 0.25 mmol/L AsA increased plant height,biomass and chlorophyll contents,while decreased the contents of malondialdehyde(MDA) and soluble sugar,as well as the activities of peroxidase(POD) and superoxide dismutase(SOD)”
t0“Barley Seedlings”
Claim · model-written summary
AsA decreased superoxide dismutase(SOD) under Al stress.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- spraying 0.01,0.05,and 0.25 mmol/L AsAe0
- Outcome
- superoxide dismutase(SOD)e0
- Direction
- decreasede0
- Comparator
- single Al stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as compared with single Al stress,spraying 0.01,0.05,and 0.25 mmol/L AsA increased plant height,biomass and chlorophyll contents,while decreased the contents of malondialdehyde(MDA) and soluble sugar,as well as the activities of peroxidase(POD) and superoxide dismutase(SOD)”
t0“Barley Seedlings”
Claim · model-written summary
Spraying 0.5 mmol/L AsA decreased plant growth.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- spraying 0.5 mmol/L AsAe0
- Outcome
- plant growthe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spraying 0.5 mmol/L AsA decreased plant growth”
t0“Barley Seedlings”
Claim · model-written summary
Spraying 0.5 mmol/L AsA increased oxidative stress.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- spraying 0.5 mmol/L AsAe0
- Outcome
- oxidative stresse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spraying 0.5 mmol/L AsA decreased plant growth and increased oxidative stress”
t0“Barley Seedlings”
Claim · model-written summary
The optimum AsA concentration for alleviation was 0.25 mmol/L.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- optimum concentration of AsAe0
- Value
- 0.25 mmol/Le0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The optimum concentration of AsA was 0.25 mmol/L for the best alleviation of Al stressed plants in this study.”
t0“Barley Seedlings”
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See all 5 papers →8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.