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Response of antioxidant systems to NaCl stress in the halophyte Cakile maritima

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Response of antioxidant systems to NaCl stress in the halophyte Cakile maritima

Auteurs : Nader Ben Amor [Tunisie] ; Ana Jiménez [Espagne] ; Wided Megdiche [Tunisie] ; Marianne Lundqvist [Espagne] ; Francisca Sevilla [Espagne] ; Chedly Abdelly [Tunisie]

Source :

Physiologia Plantarum [ 0031-9317 ] ; 2006-03.

RBID : ISTEX:92FCABC06EB856A498BBD1B193B4BD2EAD5E8E81

English descriptors

Abstract

The effects of salt stress on antioxidative activities were investigated in a coastal halophyte, Cakile maritima. Two Tunisian accessions, Jerba and Tabarka, were compared. Plants were subjected to 100, 200, or 400 mM NaCl for 20 days. Parameters of oxidative stress [malondialdehyde (MDA), electrolyte leakage (EL), and hydrogen peroxide (H2O2) concentration], activities of several enzymes [superoxide dismutase (SOD), catalase (CAT), peroxydase (POD), ascorbate peroxidase (APX), monodehydroascorbate reductase (MDHAR), dehydroascorbate reductase (DHAR), and glutathione reductase (GR)], and antioxidant molecules (ascorbate, ASC, and glutathione, GSH) were determined. Growth of Jerba plants was improved at 100 mM NaCl as compared to that of control. Tabarka growth was inhibited by salt at all NaCl concentrations. The relative salt tolerance of Jerba was associated with high antioxidant enzyme activities and glutathione content, together with low MDA content, EL, and H2O2 concentration. Lower antioxidant activities and higher MDA content, EL, and H2O2 concentration were found in Tabarka. As a whole, these data suggest that the capacity to limit oxidative damage is important for salt tolerance of C. maritima.

Url:

https://api.istex.fr/document/92FCABC06EB856A498BBD1B193B4BD2EAD5E8E81/fulltext/pdf

DOI: 10.1111/j.1399-3054.2006.00620.x

Affiliations:

Espagne, Tunisie

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Le document en format XML

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<term>Antioxidant responses</term>
<term>Antioxidant systems</term>
<term>Antioxidative</term>
<term>Antioxidative enzymes</term>
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<term>Cakile maritima</term>
<term>Cakile maritima accessions</term>
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<term>Catalase activity</term>
<term>Chaparzadeh</term>
<term>Chloroplast</term>
<term>Cultivar</term>
<term>Dehydroascorbate reductase</term>
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<term>Different letters</term>
<term>Dismutase</term>
<term>Electrolyte leakage</term>
<term>Glutathione</term>
<term>Glutathione reductase</term>
<term>Gomez</term>
<term>Gssg</term>
<term>Halophyte</term>
<term>High salinity</term>
<term>Highest nacl concentration</term>
<term>Hydrogen peroxide</term>
<term>Jerba</term>
<term>Jerba accession</term>
<term>Jerba tabarka</term>
<term>Jimenez</term>
<term>Lipid</term>
<term>Lipid peroxidation</term>
<term>Maritima</term>
<term>Maritima accessions</term>
<term>Mdhar</term>
<term>Monodehydroascorbate reductase</term>
<term>Nacl</term>
<term>Nacl concentration</term>
<term>Nacl concentrations</term>
<term>Nacl stress</term>
<term>Nmol</term>
<term>Nmol protein</term>
<term>Other hand</term>
<term>Oxidative</term>
<term>Oxidative damage</term>
<term>Oxidative stress</term>
<term>Oxidized</term>
<term>Oxidized glutathione</term>
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<term>Physiol plant</term>
<term>Pisum sativum</term>
<term>Plant cell physiol</term>
<term>Plant physiol</term>
<term>Redox</term>
<term>Reductase</term>
<term>Replicates</term>
<term>Salinity</term>
<term>Salt concentration</term>
<term>Salt stress</term>
<term>Salt tolerance</term>
<term>Salt treatment</term>
<term>Sevilla</term>
<term>Standard curve</term>
<term>Study results</term>
<term>Superoxide</term>
<term>Superoxide dismutase</term>
<term>Tabarka</term>
<term>Tabarka accession</term>
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<keywords scheme="Teeft" xml:lang="en"><term>Absorbance</term>
<term>Accession</term>
<term>Antioxidant</term>
<term>Antioxidant responses</term>
<term>Antioxidant systems</term>
<term>Antioxidative</term>
<term>Antioxidative enzymes</term>
<term>Ascorbate</term>
<term>Ascorbate peroxidase</term>
<term>Ascorbic acid</term>
<term>Better protection</term>
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<term>Cakile maritima</term>
<term>Cakile maritima accessions</term>
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<term>Catalase activity</term>
<term>Chaparzadeh</term>
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<term>Cultivar</term>
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<term>Electrolyte leakage</term>
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<term>Glutathione reductase</term>
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<term>Gssg</term>
<term>Halophyte</term>
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<term>Highest nacl concentration</term>
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<term>Jerba accession</term>
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<term>Lipid peroxidation</term>
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<term>Nacl concentrations</term>
<term>Nacl stress</term>
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<term>Nmol protein</term>
<term>Other hand</term>
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<term>Oxidative damage</term>
<term>Oxidative stress</term>
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<term>Peroxidation</term>
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<term>Physiol plant</term>
<term>Pisum sativum</term>
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<term>Plant physiol</term>
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<term>Replicates</term>
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<term>Salt treatment</term>
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<term>Standard curve</term>
<term>Study results</term>
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<front><div type="abstract" xml:lang="en">The effects of salt stress on antioxidative activities were investigated in a coastal halophyte, Cakile maritima. Two Tunisian accessions, Jerba and Tabarka, were compared. Plants were subjected to 100, 200, or 400 mM NaCl for 20 days. Parameters of oxidative stress [malondialdehyde (MDA), electrolyte leakage (EL), and hydrogen peroxide (H2O2) concentration], activities of several enzymes [superoxide dismutase (SOD), catalase (CAT), peroxydase (POD), ascorbate peroxidase (APX), monodehydroascorbate reductase (MDHAR), dehydroascorbate reductase (DHAR), and glutathione reductase (GR)], and antioxidant molecules (ascorbate, ASC, and glutathione, GSH) were determined. Growth of Jerba plants was improved at 100 mM NaCl as compared to that of control. Tabarka growth was inhibited by salt at all NaCl concentrations. The relative salt tolerance of Jerba was associated with high antioxidant enzyme activities and glutathione content, together with low MDA content, EL, and H2O2 concentration. Lower antioxidant activities and higher MDA content, EL, and H2O2 concentration were found in Tabarka. As a whole, these data suggest that the capacity to limit oxidative damage is important for salt tolerance of C. maritima.</div>
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Response of antioxidant systems to NaCl stress in the halophyte Cakile maritima

Response of antioxidant systems to NaCl stress in the halophyte Cakile maritima

Source :

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri