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Modulation of Physiological Stress Response of Triticum aestivum L. to Glyphosate by Brassinosteroid Application
The potential of brassinosteroids to modulate the physiological responses of winter wheat (Triticum aestivum L.) to herbicide stress was evaluated. Young winter wheat seedlings were treated with 24-epibrassinolide (EBL) and 24 h later were sprayed with glyphosate. The physiological responses of trea...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8623213/ https://www.ncbi.nlm.nih.gov/pubmed/34833032 http://dx.doi.org/10.3390/life11111156 |
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author | Shopova, Elena Katerova, Zornitsa Brankova, Liliana Dimitrova, Ljudmila Sergiev, Iskren Todorova, Dessislava Talaat, Neveen B. |
author_facet | Shopova, Elena Katerova, Zornitsa Brankova, Liliana Dimitrova, Ljudmila Sergiev, Iskren Todorova, Dessislava Talaat, Neveen B. |
author_sort | Shopova, Elena |
collection | PubMed |
description | The potential of brassinosteroids to modulate the physiological responses of winter wheat (Triticum aestivum L.) to herbicide stress was evaluated. Young winter wheat seedlings were treated with 24-epibrassinolide (EBL) and 24 h later were sprayed with glyphosate. The physiological responses of treated plants were assessed 14 days after herbicide application. Wheat growth was noticeably inhibited by glyphosate. The herbicide application significantly increased the content of the stress markers proline and malondialdehyde (MDA) evidencing oxidative damage. The content of phenolic compounds was decreased in the herbicide-treated plants. Slight activation of superoxide dismutase (SOD) and catalase (CAT) and considerable increase of glutathione reductase (GR) and guaiacol peroxidase (POX) activities were found. Increased POX and glutathione S-transferase (GST) activities were anticipated to be involved in herbicide detoxification. Conjugation with glutathione in herbicide-treated plants could explain the reduction of thiols suggesting unbalanced redox state. EBL application did not alter the plant growth but a moderate activation of antioxidant defense (POX, GR, and CAT activities and phenolic levels) and detoxifying enzyme GST was observed. The hormonal priming provoked a slight decrease in MDA and proline levels. The results demonstrate that EBL-pretreatment partly restored shoot growth and has a potential to mitigate the oxidative damages in glyphosate-treated plants through activation of the enzymatic antioxidant defense and increase of the phenolic compounds. |
format | Online Article Text |
id | pubmed-8623213 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-86232132021-11-27 Modulation of Physiological Stress Response of Triticum aestivum L. to Glyphosate by Brassinosteroid Application Shopova, Elena Katerova, Zornitsa Brankova, Liliana Dimitrova, Ljudmila Sergiev, Iskren Todorova, Dessislava Talaat, Neveen B. Life (Basel) Article The potential of brassinosteroids to modulate the physiological responses of winter wheat (Triticum aestivum L.) to herbicide stress was evaluated. Young winter wheat seedlings were treated with 24-epibrassinolide (EBL) and 24 h later were sprayed with glyphosate. The physiological responses of treated plants were assessed 14 days after herbicide application. Wheat growth was noticeably inhibited by glyphosate. The herbicide application significantly increased the content of the stress markers proline and malondialdehyde (MDA) evidencing oxidative damage. The content of phenolic compounds was decreased in the herbicide-treated plants. Slight activation of superoxide dismutase (SOD) and catalase (CAT) and considerable increase of glutathione reductase (GR) and guaiacol peroxidase (POX) activities were found. Increased POX and glutathione S-transferase (GST) activities were anticipated to be involved in herbicide detoxification. Conjugation with glutathione in herbicide-treated plants could explain the reduction of thiols suggesting unbalanced redox state. EBL application did not alter the plant growth but a moderate activation of antioxidant defense (POX, GR, and CAT activities and phenolic levels) and detoxifying enzyme GST was observed. The hormonal priming provoked a slight decrease in MDA and proline levels. The results demonstrate that EBL-pretreatment partly restored shoot growth and has a potential to mitigate the oxidative damages in glyphosate-treated plants through activation of the enzymatic antioxidant defense and increase of the phenolic compounds. MDPI 2021-10-29 /pmc/articles/PMC8623213/ /pubmed/34833032 http://dx.doi.org/10.3390/life11111156 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Shopova, Elena Katerova, Zornitsa Brankova, Liliana Dimitrova, Ljudmila Sergiev, Iskren Todorova, Dessislava Talaat, Neveen B. Modulation of Physiological Stress Response of Triticum aestivum L. to Glyphosate by Brassinosteroid Application |
title | Modulation of Physiological Stress Response of Triticum aestivum L. to Glyphosate by Brassinosteroid Application |
title_full | Modulation of Physiological Stress Response of Triticum aestivum L. to Glyphosate by Brassinosteroid Application |
title_fullStr | Modulation of Physiological Stress Response of Triticum aestivum L. to Glyphosate by Brassinosteroid Application |
title_full_unstemmed | Modulation of Physiological Stress Response of Triticum aestivum L. to Glyphosate by Brassinosteroid Application |
title_short | Modulation of Physiological Stress Response of Triticum aestivum L. to Glyphosate by Brassinosteroid Application |
title_sort | modulation of physiological stress response of triticum aestivum l. to glyphosate by brassinosteroid application |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8623213/ https://www.ncbi.nlm.nih.gov/pubmed/34833032 http://dx.doi.org/10.3390/life11111156 |
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