Effects of salinity on antioxidant enzymes and proline in leaves of barley seedlings in different growth stages

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dc.contributor.authorTurkyilmaz Unal B.
dc.contributor.authorAktas L.Y.
dc.contributor.authorGuven A.
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2014
dc.departmentNiğde ÖHÜ
dc.description.abstractThe participation of antioxidant defence under mild and severe salt stress conditions (120 and 240 mM) on barley (Hordeum vulgare L.) seedlings in different growth stages, antioxidant enzyme (superoxide dismutase, peroxidase and catalase) activities and proline content were determined. Plants grown in Hoagland solution served as control. Salinity induced proline accumulation in both 2- and 4-week-old-seedlings (up to 8.7-fold and 1.8 fold, respectively, as compared with control). The activities of antioxidant enzymes in leaves increased under NaCl stress, the seedlings in the early growing stage (2-week-old) being generally more responsive than 4-week-old ones. The highest peroxidase (POX) and superoxide dismutase (SOD) activities were 165 and 152% of control, respectively. Catalase (CAT) activity reached about 7- fold increase in NaCl treatment of 2-week-old seedlings. This dramatic increase might indicate that CAT is a major enzyme among antioxidant enzymes examined in barley under salt stress. Thus, antioxidant defence system induced by salinity plays prominent role particularly in early growth periods and its efficiency decrease with age of the plants. © 2014 National Centre for Agrarian Sciences. All rights reserved.
dc.identifier.endpage887
dc.identifier.issn1310-0351
dc.identifier.issue4
dc.identifier.scopus2-s2.0-84922379876
dc.identifier.scopusqualityQ3
dc.identifier.startpage883
dc.identifier.urihttps://hdl.handle.net/11480/746
dc.identifier.volume20
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherNational Centre for Agrarian Sciences
dc.relation.ispartofBulgarian Journal of Agricultural Science
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBarley
dc.subjectCatalase
dc.subjectHordeum vulgare
dc.subjectNaCl
dc.subjectPeroxidase
dc.subjectProline
dc.subjectSuperoxide dismutase
dc.titleEffects of salinity on antioxidant enzymes and proline in leaves of barley seedlings in different growth stages
dc.typeArticle

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