Exogenous silicon nutrition ameliorates salt-induced stress by improving growth and efficiency of PSII in Oryza sativa L. cultivars

Nutrient management of plants is the most practical and easiest way of combating salt stress. The effect of silicon (Si) nutrition on salt stress symptoms was investigated in hydroponically grown rice seedlings. Seeds from Khazar (salt sensitive) and Zayandehrood (salt tolerant) cultivars of rice we...

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Autores principales:	Mahdieh,M, Habibollahi,N, Amirjani,M.R, Abnosi,M. H, Ghorbanpour,M
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2015
Materias:	salinity stress PSII (Fv/Fm) silicon Na+ K+
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000400018
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spelling	oai:scielo:S0718-951620150004000182016-01-14Exogenous silicon nutrition ameliorates salt-induced stress by improving growth and efficiency of PSII in Oryza sativa L. cultivarsMahdieh,MHabibollahi,NAmirjani,M.RAbnosi,M. HGhorbanpour,M salinity stress PSII (Fv/Fm) silicon Na+ K+ Nutrient management of plants is the most practical and easiest way of combating salt stress. The effect of silicon (Si) nutrition on salt stress symptoms was investigated in hydroponically grown rice seedlings. Seeds from Khazar (salt sensitive) and Zayandehrood (salt tolerant) cultivars of rice were exposed to 0 and 100 mM NaCl in the absence and presence of silicon (3 mM) using sodium silicate. Plant growth parameters, sodium (Na+) and potassium (K+) concentrations, Si accumulation, chlorophyll content and efficiency of PSII (Fv/Fm) were determined in 25 days old seedlings exposed to salinity for 96 h. The results showed that salt stress generally inhibited seedling growth and reduced photosynthesis efficiency. However, the addition of Si significantly decreased shoot Na+ concentration, but increased Si uptake. Additionally, in salinized plants, the addition of Si increased Fv/Fm in Khazar cultivar. It could be concluded that Na+ concentration, Si accumulation and Fv/ Fm ratio play key role in salinity stress tolerance. Application of Si, however, alleviated to some extent detrimental effects of salinity stress by improving growth and physiological performance of both cultivars under saline conditions.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.15 n.4 20152015-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000400018en10.4067/S0718-95162015005000073
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	salinity stress PSII (Fv/Fm) silicon Na+ K+
spellingShingle	salinity stress PSII (Fv/Fm) silicon Na+ K+ Mahdieh,M Habibollahi,N Amirjani,M.R Abnosi,M. H Ghorbanpour,M Exogenous silicon nutrition ameliorates salt-induced stress by improving growth and efficiency of PSII in Oryza sativa L. cultivars
description	Nutrient management of plants is the most practical and easiest way of combating salt stress. The effect of silicon (Si) nutrition on salt stress symptoms was investigated in hydroponically grown rice seedlings. Seeds from Khazar (salt sensitive) and Zayandehrood (salt tolerant) cultivars of rice were exposed to 0 and 100 mM NaCl in the absence and presence of silicon (3 mM) using sodium silicate. Plant growth parameters, sodium (Na+) and potassium (K+) concentrations, Si accumulation, chlorophyll content and efficiency of PSII (Fv/Fm) were determined in 25 days old seedlings exposed to salinity for 96 h. The results showed that salt stress generally inhibited seedling growth and reduced photosynthesis efficiency. However, the addition of Si significantly decreased shoot Na+ concentration, but increased Si uptake. Additionally, in salinized plants, the addition of Si increased Fv/Fm in Khazar cultivar. It could be concluded that Na+ concentration, Si accumulation and Fv/ Fm ratio play key role in salinity stress tolerance. Application of Si, however, alleviated to some extent detrimental effects of salinity stress by improving growth and physiological performance of both cultivars under saline conditions.
author	Mahdieh,M Habibollahi,N Amirjani,M.R Abnosi,M. H Ghorbanpour,M
author_facet	Mahdieh,M Habibollahi,N Amirjani,M.R Abnosi,M. H Ghorbanpour,M
author_sort	Mahdieh,M
title	Exogenous silicon nutrition ameliorates salt-induced stress by improving growth and efficiency of PSII in Oryza sativa L. cultivars
title_short	Exogenous silicon nutrition ameliorates salt-induced stress by improving growth and efficiency of PSII in Oryza sativa L. cultivars
title_full	Exogenous silicon nutrition ameliorates salt-induced stress by improving growth and efficiency of PSII in Oryza sativa L. cultivars
title_fullStr	Exogenous silicon nutrition ameliorates salt-induced stress by improving growth and efficiency of PSII in Oryza sativa L. cultivars
title_full_unstemmed	Exogenous silicon nutrition ameliorates salt-induced stress by improving growth and efficiency of PSII in Oryza sativa L. cultivars
title_sort	exogenous silicon nutrition ameliorates salt-induced stress by improving growth and efficiency of psii in oryza sativa l. cultivars
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000400018
work_keys_str_mv	AT mahdiehm exogenoussiliconnutritionamelioratessaltinducedstressbyimprovinggrowthandefficiencyofpsiiinoryzasativalcultivars AT habibollahin exogenoussiliconnutritionamelioratessaltinducedstressbyimprovinggrowthandefficiencyofpsiiinoryzasativalcultivars AT amirjanimr exogenoussiliconnutritionamelioratessaltinducedstressbyimprovinggrowthandefficiencyofpsiiinoryzasativalcultivars AT abnosimh exogenoussiliconnutritionamelioratessaltinducedstressbyimprovinggrowthandefficiencyofpsiiinoryzasativalcultivars AT ghorbanpourm exogenoussiliconnutritionamelioratessaltinducedstressbyimprovinggrowthandefficiencyofpsiiinoryzasativalcultivars
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Exogenous silicon nutrition ameliorates salt-induced stress by improving growth and efficiency of PSII in Oryza sativa L. cultivars

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