Abstract
Two-week-old soybean (Glycine max) plants were subjected to factorial combination of five levels of aluminum chloride (0, 50, 100, 200 and 300 μM) and three levels of indoleacetic acid (IAA) (0, 50 and 100 μM). In the absence of IAA, treatment with increasing levels of Al progressively decreased net assimilation rate (NAR) and leaf water content per unit area (LWCA), but it increased the antioxidant enzyme activities, phenolic compounds and anthocyanin content. Aluminum concentration was increased in leaves and roots. Aluminum stress showed a substantial subtractive (p≤0.05) effect on plant growth. Exogenous IAA raised (p≤0.05) the activity of antioxidant enzymes and changed the content of anthocyanin and Al accumulation in roots and leaves depending on its concentration. Having been combined together, IAA and Al had additive effects on antioxidant enzyme activities, but their effects on NAR, LWCA, phenolic compounds, anthocyanin content and Al accumulation were moderate. Exogenous IAA counteracted the deleterious effects of Al stress and helped plants to grow successfully under these adverse conditions.
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Claims 9
Claim · model-written summary
Increasing aluminum lowered net assimilation rate and leaf water content without IAA.
- Taxon
- soybean (Glycine max)
Glycine maxe0 - Treatment
- increasing levels of Ale1
- Outcome
- net assimilation rate (NAR) and leaf water content per unit area (LWCA)e1
- Direction
- decreasede1
- Comparator
- absence of IAAe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two-week-old soybean (Glycine max) plants”
e1“In the absence of IAA, treatment with increasing levels of Al progressively decreased net assimilation rate (NAR) and leaf water content per unit area (LWCA)”
Claim · model-written summary
Increasing aluminum increased antioxidant enzyme activities, phenolic compounds and anthocyanin content without IAA.
- Taxon
- soybean (Glycine max)Glycine maxe0
- Treatment
- increasing levels of Ale1
- Outcome
- antioxidant enzyme activities, phenolic compounds and anthocyanin contente1
- Direction
- increasede1
- Comparator
- absence of IAAe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two-week-old soybean (Glycine max) plants”
e1“In the absence of IAA, treatment with increasing levels of Al progressively decreased net assimilation rate (NAR) and leaf water content per unit area (LWCA), but it increased the antioxidant enzyme activities, phenolic compounds and anthocyanin content”
Claim · model-written summary
Aluminum concentration increased in soybean leaves and roots.
- Taxon
- soybean (Glycine max)Glycine maxe0
- Organ / stage
- leaves and rootse1
- Treatment
- aluminum chloridee2
- Outcome
- Aluminum concentratione1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two-week-old soybean (Glycine max) plants”
e1“Aluminum concentration was increased in leaves and roots”
e2“five levels of aluminum chloride (0, 50, 100, 200 and 300 μM)”
Claim · model-written summary
Aluminum stress significantly reduced plant growth.
- Taxon
- soybean (Glycine max)Glycine maxe0
- Treatment
- Aluminum stresse1
- Outcome
- plant growthe1
- Direction
- subtractivee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two-week-old soybean (Glycine max) plants”
e1“Aluminum stress showed a substantial subtractive (p≤0.05) effect on plant growth”
Claim · model-written summary
Exogenous IAA significantly raised antioxidant enzyme activity.
- Taxon
- soybean (Glycine max)Glycine maxe0
- Treatment
- Exogenous IAAe1
- Outcome
- activity of antioxidant enzymese1
- Direction
- raisede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two-week-old soybean (Glycine max) plants”
e1“Exogenous IAA raised (p≤0.05) the activity of antioxidant enzymes”
Claim · model-written summary
Exogenous IAA changed anthocyanin content and aluminum accumulation according to concentration.
- Taxon
- soybean (Glycine max)Glycine maxe0
- Organ / stage
- roots and leavese1
- Treatment
- Exogenous IAAe2
- Outcome
- content of anthocyanin and Al accumulatione1
- Direction
- changede1
- Qualifier
- depending on its concentratione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two-week-old soybean (Glycine max) plants”
e1“changed the content of anthocyanin and Al accumulation in roots and leaves depending on its concentration”
e2“Exogenous IAA raised”
Claim · model-written summary
Combined IAA and aluminum had additive effects on antioxidant enzyme activities.
- Taxon
- soybean (Glycine max)Glycine maxe0
- Treatment
- IAA and Ale1
- Outcome
- antioxidant enzyme activitiese1
- Qualifier
- additive effectse1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two-week-old soybean (Glycine max) plants”
e1“Having been combined together, IAA and Al had additive effects on antioxidant enzyme activities”
Claim · model-written summary
Combined IAA and aluminum had moderate effects on assimilation, leaf water content, phenolics, anthocyanins and aluminum accumulation.
- Taxon
- soybean (Glycine max)Glycine maxe0
- Treatment
- IAA and Ale2
- Outcome
- NAR, LWCA, phenolic compounds, anthocyanin content and Al accumulatione1
- Qualifier
- moderatee1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two-week-old soybean (Glycine max) plants”
e1“their effects on NAR, LWCA, phenolic compounds, anthocyanin content and Al accumulation were moderate”
e2“Having been combined together, IAA and Al”
Claim · model-written summary
Exogenous IAA counteracted aluminum stress and supported growth under that stress.
- Taxon
- soybean (Glycine max)Glycine maxe0
- Treatment
- Exogenous IAAe1
- Outcome
- growe1
- Direction
- counteractede1
- Comparator
- Al stresse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two-week-old soybean (Glycine max) plants”
e1“Exogenous IAA counteracted the deleterious effects of Al stress and helped plants to grow successfully under these adverse conditions”
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See all 29 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.