Abstract
Ascorbic acid and polyamines were tested on a paraquat-susceptible rice mutant to evaluate the effect of exogenously applied chemicals on its susceptibility to this herbicide. The results showed that polyamines, especially spermine at 5 mM, could improve rice tolerance to paraquat. Although the ascorbate peroxidase activity was only slightly increased by spermine, a significant decrease of H2O2 suggested that this polyamine effectively improved paraquat resistance of rice plant through enhanced activity of antioxidative system.
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Claims 4
Claim · model-written summary
Polyamines, especially spermine at 5 mM, improved rice tolerance to paraquat.
- Taxon
- rice
Oryza sativae1 - Material
- paraquat-susceptible rice mutante0
- Treatment
- polyamines, especially spermine at 5 mMe1
- Outcome
- rice tolerance to paraquate1
- Direction
- improvee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ascorbic acid and polyamines were tested on a paraquat-susceptible rice mutant to evaluate the effect of exogenously applied chemicals on its susceptibility to this herbicide”
e1“The results showed that polyamines, especially spermine at 5 mM, could improve rice tolerance to paraquat”
Claim · model-written summary
Spermine only slightly increased ascorbate peroxidase activity in rice.
- Taxon
- riceOryza sativae2
- Treatment
- sperminee2
- Outcome
- ascorbate peroxidase activitye2
- Direction
- only slightly increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Although the ascorbate peroxidase activity was only slightly increased by spermine, a significant decrease of H2O2 suggested that this polyamine effectively improved paraquat resistance of rice plant through enhanced activity of antioxidative system”
Claim · model-written summary
Spermine significantly decreased H2O2 in rice.
- Taxon
- riceOryza sativae2
- Treatment
- sperminee2
- Outcome
- H2O2e2
- Direction
- decreasee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Although the ascorbate peroxidase activity was only slightly increased by spermine, a significant decrease of H2O2 suggested that this polyamine effectively improved paraquat resistance of rice plant through enhanced activity of antioxidative system”
Claim · model-written summary
Spermine improved paraquat resistance of rice through enhanced activity of the antioxidative system.
- Taxon
- riceOryza sativae2
- Outcome
- paraquat resistancee2
- Qualifier
- through enhanced activity of antioxidative systeme2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Although the ascorbate peroxidase activity was only slightly increased by spermine, a significant decrease of H2O2 suggested that this polyamine effectively improved paraquat resistance of rice plant through enhanced activity of antioxidative system”
The same questions in other papers
spermine · disease · Oryza sativa (rice)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
spermine · physiology: oxidative · Oryza sativa (rice)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
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.