Effect of paclobutrazol and salicylic acid on antioxidants enzyme activity in drought stress in wheat

In this study wheat plants were treated with paclobutrazol (PBZ) and salicylic acid (SA) to analyze the enzyme activity and chlorophyll content under two drought stresses (-6 and -12 bar). The Bahar cultivar was grown in a hydroponic system and drought stress was applied using PEG-6000 (-6 and -12 b...

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Autores principales:	Abbasi,Amin, Shekari,Fariborz, Mustafavi,Seyed Hamid
Lenguaje:	English
Publicado:	Universidad de Tarapacá. Facultad de Ciencias Agronómicas 2015
Materias:	paclobutrazol salicylic acid antioxidant enzyme drought stress wheat
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292015000400002
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spelling	oai:scielo:S0718-342920150004000022016-01-27Effect of paclobutrazol and salicylic acid on antioxidants enzyme activity in drought stress in wheatAbbasi,AminShekari,FariborzMustafavi,Seyed Hamid paclobutrazol salicylic acid antioxidant enzyme drought stress wheat In this study wheat plants were treated with paclobutrazol (PBZ) and salicylic acid (SA) to analyze the enzyme activity and chlorophyll content under two drought stresses (-6 and -12 bar). The Bahar cultivar was grown in a hydroponic system and drought stress was applied using PEG-6000 (-6 and -12 bar potential). Plants were kept under stress conditions for 10 days. Treatments with 5 mg L-1 paclobutrazol and 0.1 mm salicylic acid were carried out simultaneously with drought stress. The effects of PBZ and SA treatments on wheat were monitored by measuring the changes in CAT, APX, SOD, GPX, MDA, H2O2 and chlorophyll under drought stress. Both PBZ and SA increased antioxidant enzyme activity and showed significant differences (p< 0.001 and 0.05). APX, SOD and CAT activity decreased under the drought condition but PBZ treatment resulted in increased APX activity in the drought stress treatment. However, seedlings supplemented under drought stress showed a profound increase in GPX activity (100% and 53% higher at -6 and -12 bar PEG on 3D) compared to stressed seedlings without SA spray. The results showed that paclobutrazol minimizes the negative effects of drought stress with evidence of enhancing chlorophyll content and antioxidant enzymes such as APX, CAT and GPX that reduces H2O2 and lipid peroxidation (MDA) content.info:eu-repo/semantics/openAccessUniversidad de Tarapacá. Facultad de Ciencias AgronómicasIdesia (Arica) v.33 n.4 20152015-11-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292015000400002en10.4067/S0718-34292015000400002
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	paclobutrazol salicylic acid antioxidant enzyme drought stress wheat
spellingShingle	paclobutrazol salicylic acid antioxidant enzyme drought stress wheat Abbasi,Amin Shekari,Fariborz Mustafavi,Seyed Hamid Effect of paclobutrazol and salicylic acid on antioxidants enzyme activity in drought stress in wheat
description	In this study wheat plants were treated with paclobutrazol (PBZ) and salicylic acid (SA) to analyze the enzyme activity and chlorophyll content under two drought stresses (-6 and -12 bar). The Bahar cultivar was grown in a hydroponic system and drought stress was applied using PEG-6000 (-6 and -12 bar potential). Plants were kept under stress conditions for 10 days. Treatments with 5 mg L-1 paclobutrazol and 0.1 mm salicylic acid were carried out simultaneously with drought stress. The effects of PBZ and SA treatments on wheat were monitored by measuring the changes in CAT, APX, SOD, GPX, MDA, H2O2 and chlorophyll under drought stress. Both PBZ and SA increased antioxidant enzyme activity and showed significant differences (p< 0.001 and 0.05). APX, SOD and CAT activity decreased under the drought condition but PBZ treatment resulted in increased APX activity in the drought stress treatment. However, seedlings supplemented under drought stress showed a profound increase in GPX activity (100% and 53% higher at -6 and -12 bar PEG on 3D) compared to stressed seedlings without SA spray. The results showed that paclobutrazol minimizes the negative effects of drought stress with evidence of enhancing chlorophyll content and antioxidant enzymes such as APX, CAT and GPX that reduces H2O2 and lipid peroxidation (MDA) content.
author	Abbasi,Amin Shekari,Fariborz Mustafavi,Seyed Hamid
author_facet	Abbasi,Amin Shekari,Fariborz Mustafavi,Seyed Hamid
author_sort	Abbasi,Amin
title	Effect of paclobutrazol and salicylic acid on antioxidants enzyme activity in drought stress in wheat
title_short	Effect of paclobutrazol and salicylic acid on antioxidants enzyme activity in drought stress in wheat
title_full	Effect of paclobutrazol and salicylic acid on antioxidants enzyme activity in drought stress in wheat
title_fullStr	Effect of paclobutrazol and salicylic acid on antioxidants enzyme activity in drought stress in wheat
title_full_unstemmed	Effect of paclobutrazol and salicylic acid on antioxidants enzyme activity in drought stress in wheat
title_sort	effect of paclobutrazol and salicylic acid on antioxidants enzyme activity in drought stress in wheat
publisher	Universidad de Tarapacá. Facultad de Ciencias Agronómicas
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292015000400002
work_keys_str_mv	AT abbasiamin effectofpaclobutrazolandsalicylicacidonantioxidantsenzymeactivityindroughtstressinwheat AT shekarifariborz effectofpaclobutrazolandsalicylicacidonantioxidantsenzymeactivityindroughtstressinwheat AT mustafaviseyedhamid effectofpaclobutrazolandsalicylicacidonantioxidantsenzymeactivityindroughtstressinwheat
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Effect of paclobutrazol and salicylic acid on antioxidants enzyme activity in drought stress in wheat

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