Investigation of Comparative Regulation on Antioxidant Enzyme System under Copper Treatment and Drought Stress in Maize (Zea mays L.)

Basit Öğe Kaydı
dc.authoridSECKIN DINLER, BURCU/0000-0001-6289-380X
dc.contributor.authorCetinkaya, Hatice
dc.contributor.authorSeckin Dinler, Burcu
dc.contributor.authorTasci, Eda
dc.date.accessioned2025-03-23T19:30:04Z
dc.date.available2025-03-23T19:30:04Z
dc.date.issued2014
dc.departmentSinop Üniversitesi
dc.description.abstractThe present study was conducted to present the responses of drought-sensitive 'Shemal' and drought-tolerant '71MAY69' maize cultivars under drought condition (20% Polyethylene glycol, -0.40 MPa) and three different copper concentrations (0.5 mM, 1 mM, 1.5 mM CuSO4 center dot 5H(2)O) for 5 days to determine the enzymatic responses of copper treatment in maize leaves. Copper treatments alone did not change stomata! conductance, relative water content, malondialdehyde, proline, hydrogen peroxide content and abscisic acid level according to control groups. Combined treatment (drought and copper) alleviated the damage of PEG- induced drought stress in maize leaves. Superoxide dismutase (SOD), catalase (CAT), glutatione reductase (GR) activity increased and glutathione -S transferase (GST) activity decreased, while ascorbate peroxidase (APX) activity did not change under drought stress in the tolerant cultivar. SOD, CAT and APX were decreased and GST activities were increased while GR did not change in 'Shemal'. Also SOD, APX and CAT activity increased by copper treatment alone in both cultivars. Otherwise combined treatment increased SOD, APX and CAT activity at all concentrations, but GR and GST activity increased only by (PEG+1.5 mM) treatment when compared with PEG treatment alone in sensitive ones. As a result, exogenous copper alleviated drought stress, while it induced an oxidative damage by increasing antioxidant enzyme activities differently from drought tolerance. Copper tolerance in maize is not a common response of its defense mechanism because of different response to copper and drought in the same cultivar.
dc.identifier.doi10.15835/nbha4229632
dc.identifier.endpage371
dc.identifier.issn0255-965X
dc.identifier.issn1842-4309
dc.identifier.issue2
dc.identifier.scopus2-s2.0-84961288746
dc.identifier.scopusqualityQ2
dc.identifier.startpage363
dc.identifier.urihttps://doi.org/10.15835/nbha4229632
dc.identifier.urihttps://hdl.handle.net/11486/5003
dc.identifier.volume42
dc.identifier.wosWOS:000346326700009
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherUniv Agr Sci & Veterinary Med Cluj-Napoca
dc.relation.ispartofNotulae Botanicae Horti Agrobotanici Cluj-Napoca
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20250323
dc.subjectantioxidant enzyme
dc.subjectcopper
dc.subjectmaize
dc.subjectdrought stress
dc.titleInvestigation of Comparative Regulation on Antioxidant Enzyme System under Copper Treatment and Drought Stress in Maize (Zea mays L.)
dc.typeArticle

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu