Modulation of Physiological Stress Response of <i>Triticum aestivum</i> L. to Glyphosate by Brassinosteroid Application

The potential of brassinosteroids to modulate the physiological responses of winter wheat (<i>Triticum aestivum</i> 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 physiologica...

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Autores principales:	Elena Shopova, Zornitsa Katerova, Liliana Brankova, Ljudmila Dimitrova, Iskren Sergiev, Dessislava Todorova, Neveen B. Talaat
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	wheat herbicide brassinosteroids abiotic stress Science Q
Acceso en línea:	https://doaj.org/article/180a719b6bf044a5b5d9278ad1b28f8b
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spelling	oai:doaj.org-article:180a719b6bf044a5b5d9278ad1b28f8b2021-11-25T18:10:45ZModulation of Physiological Stress Response of <i>Triticum aestivum</i> L. to Glyphosate by Brassinosteroid Application10.3390/life111111562075-1729https://doaj.org/article/180a719b6bf044a5b5d9278ad1b28f8b2021-10-01T00:00:00Zhttps://www.mdpi.com/2075-1729/11/11/1156https://doaj.org/toc/2075-1729The potential of brassinosteroids to modulate the physiological responses of winter wheat (<i>Triticum aestivum</i> 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.Elena ShopovaZornitsa KaterovaLiliana BrankovaLjudmila DimitrovaIskren SergievDessislava TodorovaNeveen B. TalaatMDPI AGarticlewheatherbicidebrassinosteroidsabiotic stressScienceQENLife, Vol 11, Iss 1156, p 1156 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	wheat herbicide brassinosteroids abiotic stress Science Q
spellingShingle	wheat herbicide brassinosteroids abiotic stress Science Q Elena Shopova Zornitsa Katerova Liliana Brankova Ljudmila Dimitrova Iskren Sergiev Dessislava Todorova Neveen B. Talaat Modulation of Physiological Stress Response of <i>Triticum aestivum</i> L. to Glyphosate by Brassinosteroid Application
description	The potential of brassinosteroids to modulate the physiological responses of winter wheat (<i>Triticum aestivum</i> 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	article
author	Elena Shopova Zornitsa Katerova Liliana Brankova Ljudmila Dimitrova Iskren Sergiev Dessislava Todorova Neveen B. Talaat
author_facet	Elena Shopova Zornitsa Katerova Liliana Brankova Ljudmila Dimitrova Iskren Sergiev Dessislava Todorova Neveen B. Talaat
author_sort	Elena Shopova
title	Modulation of Physiological Stress Response of <i>Triticum aestivum</i> L. to Glyphosate by Brassinosteroid Application
title_short	Modulation of Physiological Stress Response of <i>Triticum aestivum</i> L. to Glyphosate by Brassinosteroid Application
title_full	Modulation of Physiological Stress Response of <i>Triticum aestivum</i> L. to Glyphosate by Brassinosteroid Application
title_fullStr	Modulation of Physiological Stress Response of <i>Triticum aestivum</i> L. to Glyphosate by Brassinosteroid Application
title_full_unstemmed	Modulation of Physiological Stress Response of <i>Triticum aestivum</i> L. to Glyphosate by Brassinosteroid Application
title_sort	modulation of physiological stress response of <i>triticum aestivum</i> l. to glyphosate by brassinosteroid application
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/180a719b6bf044a5b5d9278ad1b28f8b
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Modulation of Physiological Stress Response of <i>Triticum aestivum</i> L. to Glyphosate by Brassinosteroid Application

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