Effect of Coronatine on Antioxidant Enzyme Response of Chickpea Roots to Combination of PEG-Induced Osmotic Stress and Heat Stress

Basit Öğe Kaydı
dc.contributor.authorCeylan, Hulya Arikan
dc.contributor.authorTurkan, Ismail
dc.contributor.authorSekmen, Askim Hediye
dc.date.accessioned2019-10-27T21:41:39Z
dc.date.available2019-10-27T21:41:39Z
dc.date.issued2013
dc.departmentEge Üniversitesien_US
dc.description.abstractAbiotic stresses, such as high temperature and drought, are major limiting factors of crop production and growth. Coronatine (COR), a structural and functional analog of jasmonates, is suggested to have a role in abiotic stress tolerance. The aim of our study was to examine whether pretreatment with COR enhances the tolerance of chickpea (Cicer arietinum L. cv ICC 4958) roots to PEG-induced osmotic stress, heat stress, and their combination. Therefore, seedlings raised hydroponically in a growth chamber for 15 days were pretreated with or without COR at 0.01 mu M for 24 h and then exposed to 6 % PEG 6000-induced osmotic stress or heat (starting at 35 A degrees C and then gradually increased 1 A degrees C every 15 min and kept at 44 A degrees C for 1 h) stress for 3 days. After different treatment periods, the changes in relative growth rate (RGR); malondialdehyde (MDA), proline (Pro), and hydrogen peroxide (H2O2) contents; and the activities of antioxidant enzymes/isoenzymes in roots of chickpea seedlings with or without 0.01 mu M COR application were studied. RGR in roots was increased by COR application. Under all stress conditions, H2O2, MDA, and Pro levels increased sharply, but pretreatment with COR significantly reduced them. Moreover, COR increased the activities of H2O2 scavenger enzymes such as catalase (CAT) under heat stress, ascorbate peroxidase (POX) under PEG stress, and CAT and POX under combined stresses. Therefore, COR might alleviate adverse effects of PEG stress and heat stress and combined stresses on roots of chickpea by reduction of H2O2 production, enhancing or keeping the existent activity of antioxidant enzymes, thereby preventing membrane peroxidation.en_US
dc.description.sponsorshipEge University Research FoundationEge University [2009-FEN-014]en_US
dc.description.sponsorshipThis work was supported by Ege University Research Foundation (2009-FEN-014). The authors thank Dr. Carol Bender of Oklahoma State University for kindly providing pure coronatine and Prof. Dr. Cengiz Toker of Akdeniz University for providing Cicer arietinum ICC 4958 seeds.en_US
dc.identifier.doi10.1007/s00344-012-9277-5
dc.identifier.endpage82en_US
dc.identifier.issn0721-7595
dc.identifier.issn1435-8107
dc.identifier.issn0721-7595en_US
dc.identifier.issn1435-8107en_US
dc.identifier.issue1en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage72en_US
dc.identifier.urihttps://doi.org/10.1007/s00344-012-9277-5
dc.identifier.urihttps://hdl.handle.net/11454/46716
dc.identifier.volume32en_US
dc.identifier.wosWOS:000314295600007en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofJournal of Plant Growth Regulationen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAntioxidant enzymesen_US
dc.subjectChickpea (Cicer arietinum L.)en_US
dc.subjectCoronatineen_US
dc.subjectHeaten_US
dc.subjectPEG-induced osmotic stressen_US
dc.subjectRooten_US
dc.titleEffect of Coronatine on Antioxidant Enzyme Response of Chickpea Roots to Combination of PEG-Induced Osmotic Stress and Heat Stressen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu