Abstract
Abstract The effects of 24-epicastasterone (EC) and its conjugate with the residue of salicylic acid (EC 2‑monosalicylate, ECMS) on the heat resistance of wheat seedlings are compared. The treatment of seedlings with ECMS at concentrations of 20 and 50 nM caused a more significant increase in heat resistance as compared to the action of EC, salicylic acid (SA), and a mixture of EC and SA at the indicated concentrations. A transient increase in the content of hydrogen peroxide in seedling roots under the influence of EC and ECMS was observed; in this case, the effect of ECMS was more significant. Seedling treatment with ECMS caused a more notable increase in the activity of antioxidant enzymes (catalase and guaiacol peroxidase) in the roots as compared to the action of EC. The effect of EC and its salicylate on the indicators of the pro-and antioxidant balance in root cell and the heat resistance of seedlings was eliminated via treatment with the antioxidant dimethylthiourea and the NADPH oxidase inhibitor imidazole. A conclusion is made about the ROS-mediated action of the studied compounds on the stress-protective systems of seedling roots. The more significant protective effect of ECMS in comparison with EC may be associated with the gradual release of SA and EC from the conjugate and the functional interaction of the signaling pathways of brassinosteroids and SA.
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Claims 9
Claim · model-written summary
ECMS at 20 and 50 nM increased wheat seedling heat resistance more than EC, SA or their mixture.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- ECMS at concentrations of 20 and 50 nMe0
- Outcome
- heat resistancee0
- Direction
- increasee0
- Comparator
- EC, salicylic acid (SA), and a mixture of EC and SAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatment of seedlings with ECMS at concentrations of 20 and 50 nM caused a more significant increase in heat resistance as compared to the action of EC, salicylic acid (SA), and a mixture of EC and SA at the indicated concentrations.”
t0“Wheat Seedlings”
Claim · model-written summary
EC transiently increased hydrogen peroxide in wheat seedling roots.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- seedling rootse0
- Treatment
- ECe0
- Outcome
- content of hydrogen peroxidee0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A transient increase in the content of hydrogen peroxide in seedling roots under the influence of EC and ECMS was observed”
t0“Wheat Seedlings”
Claim · model-written summary
ECMS transiently increased hydrogen peroxide in wheat seedling roots.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- seedling rootse0
- Treatment
- ECMSe0
- Outcome
- content of hydrogen peroxidee0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A transient increase in the content of hydrogen peroxide in seedling roots under the influence of EC and ECMS was observed”
t0“Wheat Seedlings”
Claim · model-written summary
ECMS produced a stronger root hydrogen peroxide response than EC.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- ECMSe0
- Outcome
- content of hydrogen peroxidee1
- Direction
- more significante0
- Comparator
- ECe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of ECMS was more significant”
e1“A transient increase in the content of hydrogen peroxide in seedling roots under the influence of EC and ECMS was observed”
t0“Wheat Seedlings”
Claim · model-written summary
ECMS increased root catalase and guaiacol peroxidase activity more than EC.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- rootse0
- Treatment
- ECMSe0
- Outcome
- activity of antioxidant enzymes (catalase and guaiacol peroxidase)e0
- Direction
- increasee0
- Comparator
- ECe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seedling treatment with ECMS caused a more notable increase in the activity of antioxidant enzymes (catalase and guaiacol peroxidase) in the roots as compared to the action of EC.”
t0“Wheat Seedlings”
Claim · model-written summary
Dimethylthiourea eliminated the effects of EC and its salicylate on root redox balance and heat resistance.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- antioxidant dimethylthioureae0
- Outcome
- indicators of the pro-and antioxidant balance in root cell and the heat resistance of seedlingse0
- Direction
- eliminatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of EC and its salicylate on the indicators of the pro-and antioxidant balance in root cell and the heat resistance of seedlings was eliminated via treatment with the antioxidant dimethylthiourea”
t0“Wheat Seedlings”
Claim · model-written summary
Imidazole eliminated the effects of EC and its salicylate on root redox balance and heat resistance.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- NADPH oxidase inhibitor imidazolee0
- Outcome
- indicators of the pro-and antioxidant balance in root cell and the heat resistance of seedlingse0
- Direction
- eliminatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of EC and its salicylate on the indicators of the pro-and antioxidant balance in root cell and the heat resistance of seedlings was eliminated via treatment with the antioxidant dimethylthiourea and the NADPH oxidase inhibitor imidazole.”
t0“Wheat Seedlings”
Claim · model-written summary
The authors attributed the stress protection to ROS-mediated action.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- stress-protective systems of seedling rootse0
- Qualifier
- ROS-mediated actione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A conclusion is made about the ROS-mediated action of the studied compounds on the stress-protective systems of seedling roots.”
t0“Wheat Seedlings”
Claim · model-written summary
The stronger ECMS protection may involve gradual SA and EC release and interacting signaling pathways.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- protective effect of ECMSe0
- Qualifier
- gradual release of SA and EC from the conjugate and the functional interaction of the signaling pathways of brassinosteroids and SAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The more significant protective effect of ECMS in comparison with EC may be associated with the gradual release of SA and EC from the conjugate and the functional interaction of the signaling pathways of brassinosteroids and SA.”
t0“Wheat Seedlings”
The same questions in other papers
imidazole · 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.