The role of antioxidant responses on the tolerance range of extreme halophyte Salsola crassa grown under toxic salt concentrations

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dc.contributor.authorYildiztugay, Evren
dc.contributor.authorOzfidan-Konakci, Ceyda
dc.contributor.authorKucukoduk, Mustafa
dc.date.accessioned2024-02-23T14:02:43Z
dc.date.available2024-02-23T14:02:43Z
dc.date.issued2014
dc.departmentNEÜen_US
dc.description.abstractSalsola crassa (Amaranthaceae) is an annual halophytic species and naturally grows in arid soils that are toxic to most plants. In order to study the effects of salinity on their antioxidant system and to determine the tolerance range against salt stress, S. crassa seeds were grown with different concentrations of NaCl (0, 250, 500, 750, 1000, 1250 and 1500 mM) for short (15 d) and long-term (30 d). Results showed that growth (RGR), water content (RWC) and osmotic potential (Psi(Pi)) decreased and, proline content (Pro) increased at prolonged salt treatment. Unlike K+ and Ca2+ contents, S. crassa highly accumulated Na+ and Cl- contents. Chlorophyll fluorescence (F-v/F-m) only decreased in response to 1500 mM NaCl at 30 d. No salt stimulation of superoxide anion radical (O-2(center dot-)) content was observed in plants treated with the range of 0-500 mM NaCl during the experimental period. NaCl increased superoxide dismutase (SOD) activity depending on intensities of Mn-SOD and Fe-SOD isozymes except in 1500 mM NaCl-treated plants at 30 d. In contrast to catalase (CAT), peroxidase (POX) activity increased throughout the experiment. Also, salinity caused an increase in glutathione reductase (GR) and glutathione peroxidase (GPX) and decreased in ascorbate peroxidase (APX), monodehydroascorbate reductase (MDHAR) and dehydroascorbate reductase (DHAR) at 15 d. Both total ascorbate (tAsA) and glutathione (tGlut) contents significantly increased in treated plants with 1000-1500 mM NaCl at 15 d. After 0-1000 mM NaCl stress, H2O2 and TBARS contents were similar to control groups at 15 d, which were consistent with the increased antioxidant activity (PDX, GR and GPX). However, H2O2 content was more pronounced at 30 d. Therefore, S. crassa exhibited inductions in lipid peroxidation (TBARS content) in response to extreme salt concentrations. These results suggest that S. crassa is tolerant to salt-induced damage at short-term treatments as well as extreme salt concentrations. (C) 2014 Elsevier Inc. All rights reserved.en_US
dc.description.sponsorshipSelcuk University Scientific Research Projects Coordinating Office [13401084]en_US
dc.description.sponsorshipFinancial support for this work was provided by Selcuk University Scientific Research Projects Coordinating Office (project number: 13401084). We also would like to thank to Assist. Prof. Dr. Mehmet Hamurcu for his technical assistance in ICP-OES analyses.en_US
dc.identifier.doi10.1016/j.ecoenv.2014.08.013
dc.identifier.endpage30en_US
dc.identifier.issn0147-6513
dc.identifier.issn1090-2414
dc.identifier.pmid25193881en_US
dc.identifier.scopus2-s2.0-84906860757en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage21en_US
dc.identifier.urihttps://doi.org/10.1016/j.ecoenv.2014.08.013
dc.identifier.urihttps://hdl.handle.net/20.500.12452/11826
dc.identifier.volume110en_US
dc.identifier.wosWOS:000344309500004en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherAcademic Press Inc Elsevier Scienceen_US
dc.relation.ispartofEcotoxicology And Environmental Safetyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAntioxidant Enzyme Systemen_US
dc.subjectHalopyhteen_US
dc.subjectSalsola Crassaen_US
dc.subjectSalt Stressen_US
dc.subjectReactive Oxygen Speciesen_US
dc.titleThe role of antioxidant responses on the tolerance range of extreme halophyte Salsola crassa grown under toxic salt concentrationsen_US
dc.typeArticleen_US

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