Abstract
The effect of 4-hydroxybenzoic acid (4-HBA) on resistance of coleoptiles of 4-day-old etiolated seedlings of wheat (Triticum aestivum L., cv. Elegiya) to damaging heating (10 min at 43°C) and possible dependence of this effect on changes in the activities of enzymes producing and scavenging reactive oxygen species (ROS) were investigated. Treatment of coleoptiles with 10 µM 4-HBA resulted in enhancing of superoxide anion-radical generation and maintaining of hydrogen peroxide content there in. Increasing of the rate of ROS production was significantly suppressed by inhibitors of NADPH oxidase (α-naphthol) and peroxidase (salicylhydroxamic acid). Under the influence of 4HBA the activities of superoxide dismutase and apoplastic forms of peroxidase were increased. The activity of oxalate oxidase and catalase has not changed. Exogenous 4-HBA improved coleoptiles heat resistance and its effects were comparable with the influence of salicylic acid. Antioxidant agent BHT (butylhydroxytoluene), inhibitors of NADPH oxidase and peroxidase significantly reduced the increasing of wheat coleoptiles heat resistance, caused by 4-HBA action. It was concluded that 4-HBA influence on coleoptiles heat resistance is realized with the ROS mediation.
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Claims 10
Claim · model-written summary
The 10 µM 4-HBA treatment enhanced superoxide anion-radical generation in wheat coleoptiles.
- Taxon
- Triticum aestivum L.
Triticum aestivume0 - Organ / stage
- coleoptilese1
- Treatment
- 10 µM 4-HBAe1
- Outcome
- superoxide anion-radical generatione1
- Direction
- enhancinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of 4-hydroxybenzoic acid (4-HBA) on resistance of coleoptiles of 4-day-old etiolated seedlings of wheat (Triticum aestivum L., cv. Elegiya)”
e1“Treatment of coleoptiles with 10 µM 4-HBA resulted in enhancing of superoxide anion-radical generation and maintaining of hydrogen peroxide content there in”
Claim · model-written summary
The 10 µM 4-HBA treatment maintained hydrogen peroxide content in wheat coleoptiles.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Organ / stage
- coleoptilese1
- Treatment
- 10 µM 4-HBAe1
- Outcome
- hydrogen peroxide contente1
- Direction
- maintaininge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of 4-hydroxybenzoic acid (4-HBA) on resistance of coleoptiles of 4-day-old etiolated seedlings of wheat (Triticum aestivum L., cv. Elegiya)”
e1“Treatment of coleoptiles with 10 µM 4-HBA resulted in enhancing of superoxide anion-radical generation and maintaining of hydrogen peroxide content there in”
Claim · model-written summary
Inhibitors of NADPH oxidase significantly suppressed the increase in ROS production rate in 4-HBA-treated wheat coleoptiles.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Treatment
- inhibitors of NADPH oxidase (α-naphthol)e2
- Outcome
- Increasing of the rate of ROS productione2
- Direction
- significantly suppressede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of 4-hydroxybenzoic acid (4-HBA) on resistance of coleoptiles of 4-day-old etiolated seedlings of wheat (Triticum aestivum L., cv. Elegiya)”
e2“Increasing of the rate of ROS production was significantly suppressed by inhibitors of NADPH oxidase (α-naphthol) and peroxidase (salicylhydroxamic acid)”
Claim · model-written summary
4-HBA increased superoxide dismutase and apoplastic peroxidase activities in wheat coleoptiles.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Treatment
- 4HBAe3
- Outcome
- the activities of superoxide dismutase and apoplastic forms of peroxidasee3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of 4-hydroxybenzoic acid (4-HBA) on resistance of coleoptiles of 4-day-old etiolated seedlings of wheat (Triticum aestivum L., cv. Elegiya)”
e3“Under the influence of 4HBA the activities of superoxide dismutase and apoplastic forms of peroxidase were increased”
Claim · model-written summary
4-HBA did not change oxalate oxidase and catalase activities in wheat coleoptiles.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Treatment
- 4HBAe3
- Outcome
- The activity of oxalate oxidase and catalasee4
- Direction
- has not changede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of 4-hydroxybenzoic acid (4-HBA) on resistance of coleoptiles of 4-day-old etiolated seedlings of wheat (Triticum aestivum L., cv. Elegiya)”
e3“Under the influence of 4HBA the activities of superoxide dismutase and apoplastic forms of peroxidase were increased”
e4“The activity of oxalate oxidase and catalase has not changed”
Claim · model-written summary
Exogenous 4-HBA improved heat resistance of wheat coleoptiles.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Treatment
- Exogenous 4-HBAe5
- Outcome
- coleoptiles heat resistancee5
- Direction
- improvede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of 4-hydroxybenzoic acid (4-HBA) on resistance of coleoptiles of 4-day-old etiolated seedlings of wheat (Triticum aestivum L., cv. Elegiya)”
e5“Exogenous 4-HBA improved coleoptiles heat resistance and its effects were comparable with the influence of salicylic acid”
Claim · model-written summary
Exogenous 4-HBA gave wheat coleoptile heat resistance effects comparable with salicylic acid.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Treatment
- Exogenous 4-HBAe5
- Outcome
- its effectse5
- Direction
- comparablee5
- Comparator
- salicylic acide5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of 4-hydroxybenzoic acid (4-HBA) on resistance of coleoptiles of 4-day-old etiolated seedlings of wheat (Triticum aestivum L., cv. Elegiya)”
e5“Exogenous 4-HBA improved coleoptiles heat resistance and its effects were comparable with the influence of salicylic acid”
Claim · model-written summary
BHT significantly reduced the heat resistance increase that 4-HBA caused in wheat coleoptiles.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Treatment
- Antioxidant agent BHT (butylhydroxytoluene)e6
- Outcome
- increasing of wheat coleoptiles heat resistancee6
- Direction
- significantly reducede6
- Comparator
- 4-HBA actione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of 4-hydroxybenzoic acid (4-HBA) on resistance of coleoptiles of 4-day-old etiolated seedlings of wheat (Triticum aestivum L., cv. Elegiya)”
e6“Antioxidant agent BHT (butylhydroxytoluene), inhibitors of NADPH oxidase and peroxidase significantly reduced the increasing of wheat coleoptiles heat resistance, caused by 4-HBA action”
Claim · model-written summary
NADPH oxidase and peroxidase inhibitors significantly reduced the heat resistance increase that 4-HBA caused in wheat coleoptiles.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Treatment
- inhibitors of NADPH oxidase and peroxidasee6
- Outcome
- increasing of wheat coleoptiles heat resistancee6
- Direction
- significantly reducede6
- Comparator
- 4-HBA actione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of 4-hydroxybenzoic acid (4-HBA) on resistance of coleoptiles of 4-day-old etiolated seedlings of wheat (Triticum aestivum L., cv. Elegiya)”
e6“Antioxidant agent BHT (butylhydroxytoluene), inhibitors of NADPH oxidase and peroxidase significantly reduced the increasing of wheat coleoptiles heat resistance, caused by 4-HBA action”
Claim · model-written summary
The 4-HBA effect on wheat coleoptile heat resistance is concluded to be mediated by ROS.
- Taxon
- Triticum aestivum L.Triticum aestivume0
- Outcome
- coleoptiles heat resistancee7
- Qualifier
- realized with the ROS mediatione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of 4-hydroxybenzoic acid (4-HBA) on resistance of coleoptiles of 4-day-old etiolated seedlings of wheat (Triticum aestivum L., cv. Elegiya)”
e7“It was concluded that 4-HBA influence on coleoptiles heat resistance is realized with the ROS mediation”
The same questions in other papers
Peroxidase · tolerance: abiotic · Triticum aestivum (wheat)Results agree
1 paper in the same direction as this paper
- negative
NADPH · tolerance: abiotic · Triticum aestivum (wheat)Results agree
2 papers in the same direction as this paper
- negative
- negative
antioxidant · tolerance: abiotic · Triticum aestivum (wheat)Results agree
3 papers in the same direction as this paper
- negative
- negative
- negative
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.