Abstract
Aluminum (Al) toxicity in acidic soils can significantly reduce peanut yield. The physiological response of peanut leaves to Al poisoning stress still has not been fully explored. This research examined the influences of Al toxicity on peanut leaves by observing the leaf phenotype, scanning the leaf area and perimeter, and by measuring photosynthetic pigment content, physiological response indices, leaf hormone levels, and mineral element accumulation. Fluorescence quantitative RT-PCR (qPCR) was utilized to determine the relative transcript level of specific genes. The results indicated that Al toxicity hindered peanut leaf development, reducing their biomass, surface area, and perimeter, although the decrease in photosynthetic pigment content was minimal. Al toxicity notably affected the activity of antioxidative enzymes, proline content, and MDA (malondialdehyde) levels in the leaves. Additionally, Al poisoning resulted in the increased accumulation of iron (Fe), potassium (K), and Al in peanut leaves but reduced the levels of calcium (Ca), manganese (Mn), copper (Cu), zinc (Zn), and magnesium (Mg). There were significant changes in the content of hormones and the expression level of genes connected with hormones in peanut leaves. High Al concentrations may activate cellular defense mechanisms, enhancing antioxidative activity to mitigate excess reactive oxygen species (ROS) and affecting hormone-related gene expression, which may impede leaf biomass and development. This research aimed to elucidate the physiological response mechanisms of peanut leaves to Al poisoning stress, providing insights for breeding new varieties resistant to Al poisoning.
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Claims 9
Claim · model-written summary
Al toxicity hindered peanut leaf development, reducing leaf biomass, surface area and perimeter.
- Taxon
- peanut
Arachis hypogaeae0 - Organ / stage
- leafe0
- Treatment
- Al toxicitye0
- Outcome
- biomass, surface area, and perimetere0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Al toxicity hindered peanut leaf development, reducing their biomass, surface area, and perimeter”
Claim · model-written summary
The decrease in photosynthetic pigment content in peanut leaves under Al toxicity was minimal.
- Taxon
- PeanutArachis hypogaeat0
- Outcome
- photosynthetic pigment contente0
- Direction
- decreasee0
- Qualifier
- minimale0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut Leaves”
e0“the decrease in photosynthetic pigment content was minimal”
Claim · model-written summary
Al toxicity notably affected antioxidative enzyme activity, proline content and MDA levels in peanut leaves.
- Taxon
- PeanutArachis hypogaeat0
- Organ / stage
- leavese0
- Treatment
- Al toxicitye0
- Outcome
- activity of antioxidative enzymes, proline content, and MDA (malondialdehyde) levelse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut Leaves”
e0“Al toxicity notably affected the activity of antioxidative enzymes, proline content, and MDA (malondialdehyde) levels in the leaves”
Claim · model-written summary
Al poisoning increased accumulation of iron, potassium and Al in peanut leaves.
- Taxon
- peanutArachis hypogaeae0
- Organ / stage
- leavese0
- Treatment
- Al poisoninge0
- Outcome
- accumulation of iron (Fe), potassium (K), and Ale0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Al poisoning resulted in the increased accumulation of iron (Fe), potassium (K), and Al in peanut leaves but reduced the levels of calcium (Ca), manganese (Mn), copper (Cu), zinc (Zn), and magnesium (Mg)”
Claim · model-written summary
Al poisoning reduced calcium, manganese and copper levels in peanut leaves.
- Taxon
- peanutArachis hypogaeae0
- Organ / stage
- leavese0
- Treatment
- Al poisoninge0
- Outcome
- levels of calcium (Ca), manganese (Mn), copper (Cu)e0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Al poisoning resulted in the increased accumulation of iron (Fe), potassium (K), and Al in peanut leaves but reduced the levels of calcium (Ca), manganese (Mn), copper (Cu), zinc (Zn), and magnesium (Mg)”
Claim · model-written summary
Al poisoning reduced zinc and magnesium levels in peanut leaves.
- Taxon
- peanutArachis hypogaeae0
- Organ / stage
- leavese0
- Treatment
- Al poisoninge0
- Outcome
- levels of calcium (Ca), manganese (Mn), copper (Cu), zinc (Zn), and magnesium (Mg)e0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Al poisoning resulted in the increased accumulation of iron (Fe), potassium (K), and Al in peanut leaves but reduced the levels of calcium (Ca), manganese (Mn), copper (Cu), zinc (Zn), and magnesium (Mg)”
Claim · model-written summary
There were significant changes in hormone content in peanut leaves.
- Taxon
- peanutArachis hypogaeae0
- Organ / stage
- leavese0
- Outcome
- content of hormonese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were significant changes in the content of hormones and the expression level of genes connected with hormones in peanut leaves”
Claim · model-written summary
There were significant changes in the expression level of hormone-related genes in peanut leaves.
- Taxon
- peanutArachis hypogaeae0
- Organ / stage
- leavese0
- Outcome
- expression level of genes connected with hormonese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were significant changes in the content of hormones and the expression level of genes connected with hormones in peanut leaves”
Claim · model-written summary
The authors suggest that high Al concentrations may activate cellular defense mechanisms, enhancing antioxidative activity to mitigate excess ROS and affecting hormone-related gene expression, which may impede leaf biomass and development.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- High Al concentrationse0
- Outcome
- leaf biomass and developmente0
- Qualifier
- maye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Peanut Leaves”
e0“High Al concentrations may activate cellular defense mechanisms, enhancing antioxidative activity to mitigate excess reactive oxygen species (ROS) and affecting hormone-related gene expression, which may impede leaf biomass and development”
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See all 12 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.