Abstract
Abstract Iron (Fe) plaque on roots of rice was found to lessen the toxic effects of zinc (Zn). With excess Zn, plants with Fe plaque had significantly greater dry mass of roots and foliage than plants without plaque. In the excess of Zn, plants with Fe plaque had higher concentrations of Fe but lower Zn than plants without plaque, although the differences were not significant. In the excess of copper (Cu) or nickel (Ni), plants with Fe plaque had significantly lower concentration of phosphorus (P) in leaves than plants without plaque. It is suggested that the low concentration of P in leaves of plants with plaque will increase the concentration of "active iron"; inside leaves, and therefore, increase their tolerance against heavy metal toxicity.
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Claims 5
Claim · model-written summary
Under excess Zn, rice plants with Fe plaque had significantly greater dry mass of roots and foliage than plants without plaque.
- Taxon
- rice
Oryza sativae0 - Treatment
- excess Zne1
- Outcome
- dry mass of roots and foliagee1
- Direction
- greatere1
- Comparator
- plants without plaquee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Iron (Fe) plaque on roots of rice was found to lessen the toxic effects of zinc (Zn)”
e1“With excess Zn, plants with Fe plaque had significantly greater dry mass of roots and foliage than plants without plaque”
Claim · model-written summary
Under excess Zn, rice plants with Fe plaque had higher Fe concentrations than plants without plaque, a difference that was not significant.
- Taxon
- riceOryza sativae0
- Treatment
- excess of Zne2
- Outcome
- concentrations of Fee2
- Direction
- highere2
- Comparator
- plants without plaquee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Iron (Fe) plaque on roots of rice was found to lessen the toxic effects of zinc (Zn)”
e2“In the excess of Zn, plants with Fe plaque had higher concentrations of Fe but lower Zn than plants without plaque, although the differences were not significant”
Claim · model-written summary
Under excess Zn, rice plants with Fe plaque had lower Zn concentrations than plants without plaque, a difference that was not significant.
- Taxon
- riceOryza sativae0
- Treatment
- excess of Zne2
- Outcome
- Zne2
- Direction
- lowere2
- Comparator
- plants without plaquee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Iron (Fe) plaque on roots of rice was found to lessen the toxic effects of zinc (Zn)”
e2“In the excess of Zn, plants with Fe plaque had higher concentrations of Fe but lower Zn than plants without plaque, although the differences were not significant”
Claim · model-written summary
Under excess Cu or Ni, rice plants with Fe plaque had significantly lower leaf P concentration than plants without plaque.
- Taxon
- riceOryza sativae0
- Treatment
- excess of copper (Cu) or nickel (Ni)e3
- Outcome
- concentration of phosphorus (P) in leavese3
- Direction
- lowere3
- Comparator
- plants without plaquee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Iron (Fe) plaque on roots of rice was found to lessen the toxic effects of zinc (Zn)”
e3“In the excess of copper (Cu) or nickel (Ni), plants with Fe plaque had significantly lower concentration of phosphorus (P) in leaves than plants without plaque”
Claim · model-written summary
The authors suggest that low leaf P concentration in plants with Fe plaque increases tolerance of rice to heavy metal toxicity.
- Taxon
- riceOryza sativae0
- Outcome
- tolerance against heavy metal toxicitye4
- Qualifier
- low concentration of P in leavese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Iron (Fe) plaque on roots of rice was found to lessen the toxic effects of zinc (Zn)”
e4“the low concentration of P in leaves of plants with plaque will increase the concentration of "active iron"; inside leaves, and therefore, increase their tolerance against heavy metal toxicity”
The same questions in other papers
zinc atom · growth · Oryza sativa (rice)Results differ
117 papers in the same direction as this paper · 13 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- negative
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See all 132 papers →zinc atom · nutrient: content · Oryza sativa (rice)Results differ
21 papers in the same direction as this paper · 254 in the opposite direction
- positive
- positive
- positive
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See all 276 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.