Abstract
Al (Aluminum) poisoning is a significant limitation to crop yield in acid soil. However, the physiological process involved in the peanut root response to Al poisoning has not been clarified yet and requires further research. In order to investigate the influence of Al toxicity stress on peanut roots, this study employed various methods, including root phenotype analysis, scanning of the root, measuring the physical response indices of the root, measurement of the hormone level in the root, and quantitative PCR (qPCR). This research aimed to explore the physiological mechanism underlying the reaction of peanut roots to Al toxicity. The findings revealed that Al poisoning inhibits the development of peanut roots, resulting in reduced biomass, length, surface area, and volume. Al also significantly affects antioxidant oxidase activity and proline and malondialdehyde contents in peanut roots. Furthermore, Al toxicity led to increased accumulations of Al and Fe in peanut roots, while the contents of zinc (Zn), cuprum (Cu), manganese (Mn), kalium (K), magnesium (Mg), and calcium (Ca) decreased. The hormone content and related gene expression in peanut roots also exhibited significant changes. High concentrations of Al trigger cellular defense mechanisms, resulting in differentially expressed antioxidase genes and enhanced activity of antioxidases to eliminate excessive ROS (reactive oxygen species). Additionally, the differential expression of hormone-related genes in a high-Al environment affects plant hormones, ultimately leading to various negative effects, for example, decreased biomass of roots and hindered root development. The purpose of this study was to explore the physiological response mechanism of peanut roots subjected to aluminum toxicity stress, and the findings of this research will provide a basis for cultivating Al-resistant peanut varieties.
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Claims 9
Claim · model-written summary
Al poisoning reduced peanut root biomass, length and surface area.
- Taxon
- peanut
Arachis hypogaeae1 - Treatment
- Al poisoninge1
- Outcome
- biomass, length, surface areae1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Al poisoning inhibits the development of peanut roots, resulting in reduced biomass, length, surface area, and volume”
Claim · model-written summary
Al poisoning reduced peanut root volume.
- Taxon
- peanutArachis hypogaeae1
- Treatment
- Al poisoninge1
- Outcome
- volumee1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Al poisoning inhibits the development of peanut roots, resulting in reduced biomass, length, surface area, and volume”
Claim · model-written summary
Al significantly affected antioxidant oxidase activity and proline and malondialdehyde contents in peanut roots.
- Taxon
- peanutArachis hypogaeae1
- Treatment
- Ale1
- Outcome
- antioxidant oxidase activity and proline and malondialdehyde contentse1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Al also significantly affects antioxidant oxidase activity and proline and malondialdehyde contents in peanut roots”
Claim · model-written summary
Al toxicity increased accumulation of Al and Fe in peanut roots.
- Taxon
- peanutArachis hypogaeae1
- Organ / stage
- rootse1
- Treatment
- Al toxicitye1
- Outcome
- accumulations of Al and Fee1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Al toxicity led to increased accumulations of Al and Fe in peanut roots”
Claim · model-written summary
Al toxicity decreased contents of Zn, Cu and Mn in peanut roots.
- Taxon
- peanutArachis hypogaeae1
- Organ / stage
- rootse1
- Treatment
- Al toxicitye1
- Outcome
- contents of zinc (Zn), cuprum (Cu), manganese (Mn)e1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Al toxicity led to increased accumulations of Al and Fe in peanut roots, while the contents of zinc (Zn), cuprum (Cu), manganese (Mn), kalium (K), magnesium (Mg), and calcium (Ca) decreased”
Claim · model-written summary
Al toxicity decreased contents of K, Mg and Ca in peanut roots.
- Taxon
- peanutArachis hypogaeae1
- Organ / stage
- rootse1
- Treatment
- Al toxicitye1
- Outcome
- kalium (K), magnesium (Mg), and calcium (Ca)e1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Al toxicity led to increased accumulations of Al and Fe in peanut roots, while the contents of zinc (Zn), cuprum (Cu), manganese (Mn), kalium (K), magnesium (Mg), and calcium (Ca) decreased”
Claim · model-written summary
Hormone content and related gene expression in peanut roots changed significantly under Al toxicity.
- Taxon
- peanutArachis hypogaeae1
- Outcome
- hormone content and related gene expressione1
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The hormone content and related gene expression in peanut roots also exhibited significant changes”
Claim · model-written summary
High Al concentrations are asserted to trigger cellular defense mechanisms, producing differentially expressed antioxidase genes and enhanced antioxidase activity that eliminates excess ROS.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- High concentrations of Ale1
- Outcome
- enhanced activity of antioxidasese1
- Qualifier
- cellular defense mechanismse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“High concentrations of Al trigger cellular defense mechanisms, resulting in differentially expressed antioxidase genes and enhanced activity of antioxidases to eliminate excessive ROS”
t0“Peanut Root Growth”
Claim · model-written summary
Differential expression of hormone-related genes in a high-Al environment is asserted to affect plant hormones, leading to decreased root biomass and hindered root development.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- high-Al environmente1
- Gene
- hormone-related genese1
- Outcome
- decreased biomass of roots and hindered root developmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the differential expression of hormone-related genes in a high-Al environment affects plant hormones, ultimately leading to various negative effects, for example, decreased biomass of roots and hindered root development”
t0“Peanut Root Growth”
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See all 5 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.