Role of Exogenous 24-Epibrassinolide in Enhancing the Salt Tolerance of Wheat Seedlings

To understand the functions of exogenous 24-Epibrassinolide (EBR) in enhancing the salt tolerance of wheat (T. aestivum L.) seedlings to salt stress, a hydroponic experiment was performed to investigate the effects of EBRon chlorophylls,root activity, H+-ATPase, malondialdehyde (MDA), electrolyte le...

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Autores principales:	Dong,Y.J, Wang,W.W, Hu,G.Q, Chen,W.F, Zhuge,Y.P, Wang,Z.L, He,M.R
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2017
Materias:	Salt stress wheat EBR antioxidative systems ion accumulation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162017000300001
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spelling	oai:scielo:S0718-951620170003000012017-10-13Role of Exogenous 24-Epibrassinolide in Enhancing the Salt Tolerance of Wheat SeedlingsDong,Y.JWang,W.WHu,G.QChen,W.FZhuge,Y.PWang,Z.LHe,M.R Salt stress wheat EBR antioxidative systems ion accumulation To understand the functions of exogenous 24-Epibrassinolide (EBR) in enhancing the salt tolerance of wheat (T. aestivum L.) seedlings to salt stress, a hydroponic experiment was performed to investigate the effects of EBRon chlorophylls,root activity, H+-ATPase, malondialdehyde (MDA), electrolyte leakage, free proline, soluble protein, reactive oxygen species (ROS), antioxidant enzymes and minerals content in wheat plants subjected to non-stress conditions or salt stress (120 mM NaCl) with foliar application of EBR (1, 10 and 100 nM). Results showed that spray of low concentrations EBR (1 and 10 nM) under non-stress conditions could promote wheat plant growth. 120 mM NaCl induced osmotic stress, oxidative stress and imbalance in mineral nutrients absorption. However, EBR enhanced the ability of resistance to osmotic stress by increasing free proline and soluble protein content, and enhanced the ability of resistance to oxidative stress by increasing antioxidant enzymes activities. As a result of increase of chlorophyll content, root activity and H+-ATPase activity, the inhibition of K, Ca, Mg, Fe and Zn uptake was ameliorated and consequently, decline in plant growth induced by NaCl stress was alleviated. Based on these results, we conclude that EBR had a positive role in regulating wheat growth and development under salt stress, and spray of 10 nM EBR had the most significant alleviating effect against NaCl toxicity.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.17 n.3 20172017-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162017000300001en10.4067/S0718-95162017000300001
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Salt stress wheat EBR antioxidative systems ion accumulation
spellingShingle	Salt stress wheat EBR antioxidative systems ion accumulation Dong,Y.J Wang,W.W Hu,G.Q Chen,W.F Zhuge,Y.P Wang,Z.L He,M.R Role of Exogenous 24-Epibrassinolide in Enhancing the Salt Tolerance of Wheat Seedlings
description	To understand the functions of exogenous 24-Epibrassinolide (EBR) in enhancing the salt tolerance of wheat (T. aestivum L.) seedlings to salt stress, a hydroponic experiment was performed to investigate the effects of EBRon chlorophylls,root activity, H+-ATPase, malondialdehyde (MDA), electrolyte leakage, free proline, soluble protein, reactive oxygen species (ROS), antioxidant enzymes and minerals content in wheat plants subjected to non-stress conditions or salt stress (120 mM NaCl) with foliar application of EBR (1, 10 and 100 nM). Results showed that spray of low concentrations EBR (1 and 10 nM) under non-stress conditions could promote wheat plant growth. 120 mM NaCl induced osmotic stress, oxidative stress and imbalance in mineral nutrients absorption. However, EBR enhanced the ability of resistance to osmotic stress by increasing free proline and soluble protein content, and enhanced the ability of resistance to oxidative stress by increasing antioxidant enzymes activities. As a result of increase of chlorophyll content, root activity and H+-ATPase activity, the inhibition of K, Ca, Mg, Fe and Zn uptake was ameliorated and consequently, decline in plant growth induced by NaCl stress was alleviated. Based on these results, we conclude that EBR had a positive role in regulating wheat growth and development under salt stress, and spray of 10 nM EBR had the most significant alleviating effect against NaCl toxicity.
author	Dong,Y.J Wang,W.W Hu,G.Q Chen,W.F Zhuge,Y.P Wang,Z.L He,M.R
author_facet	Dong,Y.J Wang,W.W Hu,G.Q Chen,W.F Zhuge,Y.P Wang,Z.L He,M.R
author_sort	Dong,Y.J
title	Role of Exogenous 24-Epibrassinolide in Enhancing the Salt Tolerance of Wheat Seedlings
title_short	Role of Exogenous 24-Epibrassinolide in Enhancing the Salt Tolerance of Wheat Seedlings
title_full	Role of Exogenous 24-Epibrassinolide in Enhancing the Salt Tolerance of Wheat Seedlings
title_fullStr	Role of Exogenous 24-Epibrassinolide in Enhancing the Salt Tolerance of Wheat Seedlings
title_full_unstemmed	Role of Exogenous 24-Epibrassinolide in Enhancing the Salt Tolerance of Wheat Seedlings
title_sort	role of exogenous 24-epibrassinolide in enhancing the salt tolerance of wheat seedlings
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162017000300001
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Role of Exogenous 24-Epibrassinolide in Enhancing the Salt Tolerance of Wheat Seedlings

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