Abstract
ABSTRACT Seedlings of two soybean genotypes, BX10 [aluminum (Al)-tolerant] and BD2 (Al-sensitive), were treated with Al to evaluate the relative root growth (RRG), callose content, Al-sensitive zone, lipid peroxidation, and the anti-oxidative enzyme activities by histochemical and biochemical assays. Under Al toxicity, the RRG reduction of BD2 was more significant than that of BX10, while callose content displayed a contrary trend. The 2–5 mm zone of root apex was the main Al-sensitive zone for soybeans. The activities of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), and ascorbate peroxidase (APX) were found to be higher in the two genotypes under Al toxicity than that of the controls. The SOD, POD, and CAT activities of BX10; however, were significantly lower than those of BD2. These results implied that producing low quantity of ROS may be one aspect of the Al-tolerant mechanism for soybeans, which in turn helps them adapt to Al stress.
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Claims 7
Claim · model-written summary
Aluminum reduced relative root growth more strongly in BD2 than BX10.
- Taxon
- Soybean
Glycine maxt0 - Material
- BD2e0
- Treatment
- Al toxicitye0
- Outcome
- RRGe0
- Direction
- reductione0
- Comparator
- BX10e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under Al toxicity, the RRG reduction of BD2 was more significant than that of BX10”
t0“Soybean”
Claim · model-written summary
Callose content showed the opposite genotype trend to root growth under aluminum toxicity.
- Taxon
- SoybeanGlycine maxt0
- Material
- BD2e0
- Outcome
- callose contente0
- Qualifier
- contrary trende0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under Al toxicity, the RRG reduction of BD2 was more significant than that of BX10, while callose content displayed a contrary trend.”
t0“Soybean”
Claim · model-written summary
The root apex 2–5 mm zone was the main aluminum sensitive zone.
- Taxon
- soybeansGlycine maxe0
- Organ / stage
- root apexe0
- Outcome
- main Al-sensitive zonee0
- Value
- 2–5 mme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 2–5 mm zone of root apex was the main Al-sensitive zone for soybeans.”
Claim · model-written summary
SOD, POD, and CAT activities were higher under aluminum toxicity than controls in both genotypes.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Al toxicitye0
- Gene
- superoxide dismutase (SOD), peroxidase (POD), catalase (CAT)e0
- Outcome
- activities of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT)e0
- Direction
- highere0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), and ascorbate peroxidase (APX) were found to be higher in the two genotypes under Al toxicity than that of the controls.”
t0“Soybean”
Claim · model-written summary
APX activity was higher under aluminum toxicity than controls in both genotypes.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Al toxicitye0
- Gene
- ascorbate peroxidase (APX)e0
- Outcome
- ascorbate peroxidase (APX)e0
- Direction
- highere0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ascorbate peroxidase (APX) were found to be higher in the two genotypes under Al toxicity than that of the controls.”
t0“Soybean”
Claim · model-written summary
SOD, POD, and CAT activities were significantly lower in BX10 than BD2.
- Taxon
- SoybeanGlycine maxt0
- Material
- BX10e0
- Outcome
- SOD, POD, and CAT activitiese0
- Direction
- lowere0
- Comparator
- BD2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The SOD, POD, and CAT activities of BX10; however, were significantly lower than those of BD2.”
t0“Soybean”
Claim · model-written summary
The authors suggest that low ROS production may contribute to aluminum tolerance.
- Taxon
- soybeansGlycine maxe0
- Outcome
- Al-tolerant mechanisme0
- Qualifier
- producing low quantity of ROSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“producing low quantity of ROS may be one aspect of the Al-tolerant mechanism for soybeans, which in turn helps them adapt to Al stress.”
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