Regulation mechanism of exogenous ALA on growth and physiology of Leymus chinensis (Trin.) under salt stress

Salt stress is one of major problem hampering plant growth and development to a significant level. In present study, 5-aminolevulinic acid (ALA) was exogenously applied to Leymus chinensis (Trin.) Tzvel. plants at various concentrations (10, 50, and 100 mg L-1) to assess its effects on morphology, p...

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Autores principales:	Ahmad Anjum,Shakeel, Li,Jin-huan, Lv,Jun, Zong,Xue-feng, Wang,Ling, Yang,Ai-jie, Yan,Rong, Ali,Zohaib, Song,Ji-xuan, Wang,San-gen
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2016
Materias:	5-Aminolevulinic acid (ALA) antioxidant enzymes growth Leymus chinensis salt stress
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000300008
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spelling	oai:scielo:S0718-583920160003000082018-10-01Regulation mechanism of exogenous ALA on growth and physiology of Leymus chinensis (Trin.) under salt stressAhmad Anjum,ShakeelLi,Jin-huanLv,JunZong,Xue-fengWang,LingYang,Ai-jieYan,RongAli,ZohaibSong,Ji-xuanWang,San-gen 5-Aminolevulinic acid (ALA) antioxidant enzymes growth Leymus chinensis salt stress Salt stress is one of major problem hampering plant growth and development to a significant level. In present study, 5-aminolevulinic acid (ALA) was exogenously applied to Leymus chinensis (Trin.) Tzvel. plants at various concentrations (10, 50, and 100 mg L-1) to assess its effects on morphology, physiology, and biochemistry under salt stress conditions (150 mmol NaCl L-1) as compared with control. The results indicated that salt stress substantially impaired growth, physiology and biochemistry of L. chinensis plants; nonetheless, ALA application alleviated the adverse effects of salt stress. Application of ALA improved the leaf length, leaf area, leaf conductance, plant dry biomass, water contents, and root activity of L. chinensis under stress and no stress conditions. Additionally, biosynthesis of chlorophyll, carotenoids, free proline, soluble sugars and proteins of L. chinensis plants was also increased following ALA application as compared to control, under salt stress conditions. Moreover, we also observed an enhanced activity of antioxidant defense system in L. chinensis in response to ALA application. ALA elevated the activity of enzymatic antioxidants viz. ascorbate peroxidase (APX), glutathione reductase (GR), superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) significantly scavenged reactive oxygen species thus reduced the accumulation of malondialdehyde (MDA) under salt stress as compared to control under both normal and stressed conditions. The effect of ALA on all growth and biochemical attributes was concentration dependent and application of 50 as well as 100 mg L-1 ALA proved better. The results concluded that salt stress tolerance in L. chinensis plants can be increased by exogenously applied ALA at appropriate concentration. It was suggested that L. chinensis plants were treated with ALA application of 50-100 mg L-1 was more beneficial under both normal and saline conditions.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.76 n.3 20162016-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000300008en10.4067/S0718-58392016000300008
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	5-Aminolevulinic acid (ALA) antioxidant enzymes growth Leymus chinensis salt stress
spellingShingle	5-Aminolevulinic acid (ALA) antioxidant enzymes growth Leymus chinensis salt stress Ahmad Anjum,Shakeel Li,Jin-huan Lv,Jun Zong,Xue-feng Wang,Ling Yang,Ai-jie Yan,Rong Ali,Zohaib Song,Ji-xuan Wang,San-gen Regulation mechanism of exogenous ALA on growth and physiology of Leymus chinensis (Trin.) under salt stress
description	Salt stress is one of major problem hampering plant growth and development to a significant level. In present study, 5-aminolevulinic acid (ALA) was exogenously applied to Leymus chinensis (Trin.) Tzvel. plants at various concentrations (10, 50, and 100 mg L-1) to assess its effects on morphology, physiology, and biochemistry under salt stress conditions (150 mmol NaCl L-1) as compared with control. The results indicated that salt stress substantially impaired growth, physiology and biochemistry of L. chinensis plants; nonetheless, ALA application alleviated the adverse effects of salt stress. Application of ALA improved the leaf length, leaf area, leaf conductance, plant dry biomass, water contents, and root activity of L. chinensis under stress and no stress conditions. Additionally, biosynthesis of chlorophyll, carotenoids, free proline, soluble sugars and proteins of L. chinensis plants was also increased following ALA application as compared to control, under salt stress conditions. Moreover, we also observed an enhanced activity of antioxidant defense system in L. chinensis in response to ALA application. ALA elevated the activity of enzymatic antioxidants viz. ascorbate peroxidase (APX), glutathione reductase (GR), superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) significantly scavenged reactive oxygen species thus reduced the accumulation of malondialdehyde (MDA) under salt stress as compared to control under both normal and stressed conditions. The effect of ALA on all growth and biochemical attributes was concentration dependent and application of 50 as well as 100 mg L-1 ALA proved better. The results concluded that salt stress tolerance in L. chinensis plants can be increased by exogenously applied ALA at appropriate concentration. It was suggested that L. chinensis plants were treated with ALA application of 50-100 mg L-1 was more beneficial under both normal and saline conditions.
author	Ahmad Anjum,Shakeel Li,Jin-huan Lv,Jun Zong,Xue-feng Wang,Ling Yang,Ai-jie Yan,Rong Ali,Zohaib Song,Ji-xuan Wang,San-gen
author_facet	Ahmad Anjum,Shakeel Li,Jin-huan Lv,Jun Zong,Xue-feng Wang,Ling Yang,Ai-jie Yan,Rong Ali,Zohaib Song,Ji-xuan Wang,San-gen
author_sort	Ahmad Anjum,Shakeel
title	Regulation mechanism of exogenous ALA on growth and physiology of Leymus chinensis (Trin.) under salt stress
title_short	Regulation mechanism of exogenous ALA on growth and physiology of Leymus chinensis (Trin.) under salt stress
title_full	Regulation mechanism of exogenous ALA on growth and physiology of Leymus chinensis (Trin.) under salt stress
title_fullStr	Regulation mechanism of exogenous ALA on growth and physiology of Leymus chinensis (Trin.) under salt stress
title_full_unstemmed	Regulation mechanism of exogenous ALA on growth and physiology of Leymus chinensis (Trin.) under salt stress
title_sort	regulation mechanism of exogenous ala on growth and physiology of leymus chinensis (trin.) under salt stress
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000300008
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Regulation mechanism of exogenous ALA on growth and physiology of Leymus chinensis (Trin.) under salt stress

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