Abstract
The effects of copper on the activity of ascorbic acid oxidasc (AAO) in detached rice leaves under both light and dark conditions and in etiolated rice seedlings were investigated. CuSO4 increased AAO activity in detached rice leaves in both light and darkness, however, the induction in darkness was higher than in the light. In the absence of CuSO4, irradiance (40 μmol m-2 s-1) resulted in a higher activity of AAO in detached rice leaves than dark treatment. Both CuSO4 and CuCl2 increased AAO activity in detached rice leaves, indicating that AAO is activated by Cu. Sulfate salts of Mg, Mn, Zn and Fe were ineffective in activating AAO in detached leaves. CuSO4 was also observed to increase AAO activity in the roots but not in shoots of etiolated rice seedlings.
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Claims 10
Claim · model-written summary
CuSO4 increased AAO activity in detached rice leaves in both light and darkness.
- Taxon
- rice
Oryza sativae1 - Organ / stage
- detached rice leavese1
- Treatment
- CuSO4e1
- Gene
- AAOe1
- Outcome
- AAO activitye1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“CuSO4 increased AAO activity in detached rice leaves in both light and darkness”
Claim · model-written summary
CuSO4 induced more AAO activity in darkness than in light.
- Taxon
- riceOryza sativae1
- Treatment
- CuSO4e1
- Gene
- AAOe1
- Outcome
- inductione1
- Direction
- highere1
- Comparator
- the lighte1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“CuSO4 increased AAO activity in detached rice leaves in both light and darkness, however, the induction in darkness was higher than in the light”
Claim · model-written summary
Irradiance (40 μmol m-2 s-1) without CuSO4 gave higher AAO activity in detached rice leaves than dark treatment.
- Taxon
- riceOryza sativae1
- Treatment
- irradiance (40 μmol m-2 s-1)e1
- Gene
- AAOe1
- Outcome
- activity of AAOe1
- Direction
- highere1
- Qualifier
- In the absence of CuSO4e1
- Comparator
- dark treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In the absence of CuSO4, irradiance (40 μmol m-2 s-1) resulted in a higher activity of AAO in detached rice leaves than dark treatment”
Claim · model-written summary
CuCl2 increased AAO activity in detached rice leaves.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Both CuSO4 and CuCl2 increased AAO activity in detached rice leaves”
Claim · model-written summary
Sulfate salt of Mg did not activate AAO in detached rice leaves.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Detached Rice Leaves”
e1“Sulfate salts of Mg, Mn, Zn and Fe were ineffective in activating AAO in detached leaves”
Claim · model-written summary
Sulfate salt of Mn did not activate AAO in detached rice leaves.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Detached Rice Leaves”
e1“Sulfate salts of Mg, Mn, Zn and Fe were ineffective in activating AAO in detached leaves”
Claim · model-written summary
Sulfate salt of Zn did not activate AAO in detached rice leaves.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Detached Rice Leaves”
e1“Sulfate salts of Mg, Mn, Zn and Fe were ineffective in activating AAO in detached leaves”
Claim · model-written summary
Sulfate salt of Fe did not activate AAO in detached rice leaves.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Detached Rice Leaves”
e1“Sulfate salts of Mg, Mn, Zn and Fe were ineffective in activating AAO in detached leaves”
Claim · model-written summary
CuSO4 increased AAO activity in the roots of etiolated rice seedlings.
- Taxon
- riceOryza sativae1
- Organ / stage
- rootse1
- Treatment
- CuSO4e1
- Gene
- AAOe1
- Outcome
- AAO activitye1
- Direction
- increasee1
- Qualifier
- etiolated rice seedlingse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“CuSO4 was also observed to increase AAO activity in the roots but not in shoots of etiolated rice seedlings”
Claim · model-written summary
CuSO4 did not increase AAO activity in the shoots of etiolated rice seedlings.
- Taxon
- riceOryza sativae1
- Organ / stage
- shootse1
- Treatment
- CuSO4e1
- Gene
- AAOe1
- Outcome
- AAO activitye1
- Direction
- no_changeinferrede1
- Qualifier
- etiolated rice seedlingse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“CuSO4 was also observed to increase AAO activity in the roots but not in shoots of etiolated rice seedlings”
The same questions in other papers
magnesium atom · quality: phytochemicals · Oryza sativa (rice)Positive and negative results
2 in the opposite direction
- positive
- positive
iron atom · quality: phytochemicals · Oryza sativa (rice)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
zinc atom · quality: phytochemicals · Oryza sativa (rice)Positive and negative results
3 in the opposite direction
- positive
- positive
- positive
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.