Abstract
Environmental contaminants such as heavy metals and organic pollutants such as herbicides may cause a variety of physiological or oxidative stresses in plants. Metribuzin is a triazinone herbicide that interferes with photosynthetic electron transport between the primary and secondary acceptors of photosystem II (PSII). In this study, the effects of metribuzin on the activities of certain enzymes of Triticum aestivum L. cv. Zarrin were determined. Thirty days old plants were treated with 20 ml metribuzin at recommended field dose (1.01 kg ha-1) through foliar application, and the plants were harvested after 7 days. The results show that metribuzin significantly increased the activities of guaiacol peroxidase, ascorbate peroxidase and polyphenol oxidase. However, metribuzin had no significant effect on the activity of glutathione reductase. Foliar application of metribuzin resulted in decrease in soluble carbohydrates. In addition, metribuzin significantly reduced shoot fresh and dry weights production of plants. These findings indicate an induced oxidative stress in wheat following metribuzin treatment. Key words: Antioxidant enzymes, herbicide, metribuzin, Triticum aestivum.
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Claims 5
Claim · model-written summary
Metribuzin significantly increased guaiacol peroxidase, ascorbate peroxidase and polyphenol oxidase activities.
- Taxon
- Triticum aestivum L.
Triticum aestivume1 - Material
- Zarrine1
- Treatment
- metribuzine0
- Outcome
- activities of guaiacol peroxidase, ascorbate peroxidase and polyphenol oxidasee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“metribuzin significantly increased the activities of guaiacol peroxidase, ascorbate peroxidase and polyphenol oxidase”
e1“Triticum aestivum L. cv. Zarrin”
Claim · model-written summary
Metribuzin had no significant effect on glutathione reductase activity.
- Taxon
- Triticum aestivum L.Triticum aestivume1
- Material
- Zarrine1
- Treatment
- metribuzine0
- Outcome
- activity of glutathione reductasee0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“metribuzin had no significant effect on the activity of glutathione reductase”
e1“Triticum aestivum L. cv. Zarrin”
Claim · model-written summary
Foliar metribuzin decreased soluble carbohydrates.
- Taxon
- Triticum aestivum L.Triticum aestivume1
- Material
- Zarrine1
- Treatment
- Foliar application of metribuzine0
- Outcome
- soluble carbohydratese0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar application of metribuzin resulted in decrease in soluble carbohydrates”
e1“Triticum aestivum L. cv. Zarrin”
Claim · model-written summary
Metribuzin significantly reduced shoot fresh and dry weights.
- Taxon
- Triticum aestivum L.Triticum aestivume1
- Material
- Zarrine1
- Organ / stage
- shoote0
- Treatment
- metribuzine0
- Outcome
- shoot fresh and dry weightse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“metribuzin significantly reduced shoot fresh and dry weights”
e1“Triticum aestivum L. cv. Zarrin”
Claim · model-written summary
The authors interpreted the metribuzin response as induced oxidative stress in wheat.
- Taxon
- wheatTriticum aestivume0
- Treatment
- metribuzine0
- Outcome
- induced oxidative stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These findings indicate an induced oxidative stress in wheat following metribuzin treatment”
The same questions in other papers
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- positive
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1 paper in the same direction as this paper · 19 in the opposite direction
- positive
- positive
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See all 21 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.