Abstract
By using Particle-Induced X-ray Emission (PIXE) technique, the effect of arsenic (As) on the mineral contents and translocation in the xylem of rice (Oryza sativa L. cv. ‘Akihikari’) was studied. The results suggest that exogenous As increased the concentrations of phosphorus (P), calcium (Ca) magnesium (Mg), sulfur (S), and manganese (Mn) in xylem, while the concentrations of potassium (K) remained unchanged. The highest concentration of As to the rice roots did not have any clear effect on the translocation of P, Ca, S, and chlorine (Cl) in the xylem, indicating that the increasing concentrations of the minerals may be due to a condensation effect, resulting from the repression of water movement in xylem by As-toxicity. Among the metal micronutrients, As decreased the concentrations and translocations of iron (Fe), zinc (Zn), and copper (Cu).
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Claims 7
Claim · model-written summary
Exogenous arsenic increased phosphorus, calcium and magnesium concentrations in rice xylem.
- Treatment
- exogenous Ase0
- Outcome
- concentrations of phosphorus (P), calcium (Ca) magnesium (Mg)e0
- Direction
- increasede0
Not reportedTaxonComparator
Verbatim
e0“exogenous As increased the concentrations of phosphorus (P), calcium (Ca) magnesium (Mg), sulfur (S), and manganese (Mn) in xylem”
Claim · model-written summary
Exogenous arsenic increased sulfur and manganese concentrations in rice xylem.
Not reportedTaxonComparator
Verbatim
e0“exogenous As increased the concentrations of phosphorus (P), calcium (Ca) magnesium (Mg), sulfur (S), and manganese (Mn) in xylem”
Claim · model-written summary
Potassium concentration in rice xylem remained unchanged under exogenous arsenic.
Not reportedTaxonTreatmentComparator
Verbatim
e0“the concentrations of potassium (K) remained unchanged.”
Claim · model-written summary
The highest arsenic concentration applied to rice roots had no clear effect on xylem translocation of phosphorus, calcium and sulfur.
- Taxon
- rice
Oryza sativae0 - Treatment
- highest concentration of Ase0
- Outcome
- translocation of P, Ca, Se0
- Direction
- did not have any clear effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest concentration of As to the rice roots did not have any clear effect on the translocation of P, Ca, S, and chlorine (Cl) in the xylem”
Claim · model-written summary
The highest arsenic concentration applied to rice roots had no clear effect on xylem chlorine translocation.
- Taxon
- riceOryza sativae0
- Treatment
- highest concentration of Ase0
- Outcome
- chlorine (Cl)e0
- Direction
- did not have any clear effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest concentration of As to the rice roots did not have any clear effect on the translocation of P, Ca, S, and chlorine (Cl) in the xylem”
Claim · model-written summary
Arsenic decreased iron, zinc and copper concentrations and translocation in rice.
- Treatment
- Ase0
- Outcome
- concentrations and translocations of iron (Fe), zinc (Zn), and copper (Cu)e0
- Direction
- decreasede0
Not reportedTaxonComparator
Verbatim
e0“As decreased the concentrations and translocations of iron (Fe), zinc (Zn), and copper (Cu).”
Claim · model-written summary
Arsenic toxicity may raise mineral concentrations by restricting water movement in rice xylem.
- Treatment
- As-toxicitye0
- Outcome
- increasing concentrations of the mineralse0
- Qualifier
- may be due to a condensation effecte0
Not reportedTaxon
Verbatim
e0“the increasing concentrations of the minerals may be due to a condensation effect, resulting from the repression of water movement in xylem by As-toxicity.”
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See all 17 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.