INVESTIGATION OF ANTIOXIDANT ENZYME ACTIVITIES IN WHEAT (TRITICUM AESTIVUM L.) CULTIVARS DEPENDING ON NITRIC OXIDE APPLICATION UNDER CADMIUM STRESS

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dc.authoridMUTLU, FATMA/0000-0002-8643-1236
dc.authorwosidYurekli, Fusun/ABG-9494-2020
dc.authorwosidMUTLU, FATMA/ABG-7958-2020
dc.contributor.authorMutlu, Fatma
dc.contributor.authorYurekli, Fusun
dc.contributor.authorKirecci, Oguz
dc.contributor.authorDengiz, Fatma
dc.date.accessioned2024-08-04T20:59:40Z
dc.date.available2024-08-04T20:59:40Z
dc.date.issued2018
dc.departmentİnönü Üniversitesien_US
dc.description.abstractWheat cultivars chosen for their cadmium (Cd) tolerance (Sonmez-2001) and sensitivity (Quality) were grown in Hoagland solution for 5 days and then they were treated with 50, 100 and 200 mu M sodium nitroprusside (SNP), a NO donor, with 9 mM Cd. Samples were taken at 24th and 72nd hours after the administration. In the present study, when examining changes in activities of antioxidant enzymes (SOD, CAT, APX, and GST) which are known as internal defense systems built up by cultivars against Cd stress, these enzymes were observed to pose different responses compared to Cd and Cd+SNP administrations. Malondialdehyde (MDA) concentration in plant tissues were also determine comparatively in order to find out lipid peroxidation. The obtained results showed that Cd stress significantly increased lipid peroxidation, superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX) and glutathione S-transferase (GST) activities. This increase was found to be higher at various rates in different treatments in sensitive cultivar Quality compared to tolerant cultivar Sonmez-2001. Cd+SNP treatments increased antioxidant enzyme activities throughout the applications compared to cadmium. This increase was determined to be significant especially in Quality cultivar and thus substantially reduced Cd toxicity. Some Cd+SNP treatments lead to decline in enzyme activities and decrease in lipid peroxidation. In Sonmez cultivar, Cd+100 mu M SNP treatment decreased catalase activity at 24th and 72nd hours compared to cadmium treatment; Cd+50 mu M SNP reduced GST activity at 72nd hour in both cultivars. Cd+SNP treatments increased MDA levels identified at 24th and 72nd hours in Quality cultivar compared to cadmium treatment; but it led to decrease MDA levels in Sonmez cultivar. This decrease was found as 46.40% in Cd+ 100 mu M SNP treatment and 51.43% in Cd+ 200 mu M SNP treatment at 72nd hour. Based on the decrease in MDA level in Sonmez cultivar, especially at 24th hour, Quality cultivar was found to have higher MDA content than Sonmez cultivar. NO demonstrated a reduced or counteractive effect on the Cd-induced increase in the activities of some typical antioxidant enzymes. These results indicate that SNP has great application potential for improving the growth of plants under heavy metal stress such as Cd toxicity.en_US
dc.identifier.endpage429en_US
dc.identifier.issn1018-4619
dc.identifier.issn1610-2304
dc.identifier.issue1en_US
dc.identifier.startpage421en_US
dc.identifier.urihttps://hdl.handle.net/11616/103429
dc.identifier.volume27en_US
dc.identifier.wosWOS:000426337900052en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherParlar Scientific Publications (P S P)en_US
dc.relation.ispartofFresenius Environmental Bulletinen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectTriticum aestivumen_US
dc.subjectCadmium stressen_US
dc.subjectNitric oxideen_US
dc.subjectAntioxidant enzymesen_US
dc.subjectMDAen_US
dc.titleINVESTIGATION OF ANTIOXIDANT ENZYME ACTIVITIES IN WHEAT (TRITICUM AESTIVUM L.) CULTIVARS DEPENDING ON NITRIC OXIDE APPLICATION UNDER CADMIUM STRESSen_US
dc.typeArticleen_US

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