Effects of Melatonin on Morus nigra cv. 'Eksi Kara' Exposed to Drought Stress

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dc.authoridAKBULUT, GULCİN BEKER/0000-0002-4964-6780
dc.authorwosidAKBULUT, GULCİN BEKER/AAB-3758-2020
dc.contributor.authorOzelc, Duygu
dc.contributor.authorAkbulut, Gulcin Beker
dc.contributor.authorYigit, Emel
dc.date.accessioned2024-08-04T20:10:14Z
dc.date.available2024-08-04T20:10:14Z
dc.date.issued2022
dc.departmentİnönü Üniversitesien_US
dc.description.abstractToday, drought stress threatens the world seriously. Determining the effects of some exogenous stimulators in acquiring resistance against stress will contribute to agriculture under drought stress. In this regard, we investigated the effects of melatonin (MEL) on Morus nigra cv. 'Eksi Kara' (black mulberry) in challenging drought. To reach this object, we reproduced 'Eksi Kara', which is registered in Turkey and has economic importance, in tissue culture by using the meristem culture method. Plants were then transferred in a medium containing polyethylene glycol (PEG) 8000, which causes-1.5 MPa drought stress, and 20 mu l MEL has applied. Leaf samples were taken on the 5th, 10th, and 15th days after treatments in groups of plants grown in a different medium (Control, Control+MEL, PEG and PEG+MEL). The changes in the pigment system, relative water content (RWC) and antioxidant system were evaluated comparatively between the groups to assess plants' growth and determine their roles in coping with stress. Our findings showed that RWC decreased in leaves under drought. Exogenous MEL added in MS medium had a mitigation effect on stress. The reduction was detected in the chlorophyll and carotenoid content of leaves. Moreover, MEL+PEG combination improved the chlorophyll level. It was seen that exogenous MEL application promoted the plant defence mechanism of M. nigra plants, which exposed to drought stress, by increasing the accumulation of non -enzymatic antioxidants; total glutathione (GSH), total phenolic, proline) and activities of antioxidant enzymes; catalase (CAT), superoxide dismutase (SOD), Glutathione-S-transferase (GST), glutathione reductase (GR), peroxidase (POD), ascorbate peroxidase (APX). This study also indicates that the application of MEL+PEG composition partially prevented membrane lipid peroxidation by decreasing (malondialdehyde) MDA content.en_US
dc.description.sponsorshipUniversity Scientific Research Project Unit [FDK-2017-682]en_US
dc.description.sponsorshipThis research is a part of the doctoral thesis of Duygu OZELCI. We want to thank Inonu University Scientific Research Project Unit (Project No FDK-2017-682) for supporting the research, and Apricot Research Institute for their contribution in providing laboratory facilities and samples.en_US
dc.identifier.doi10.15832/ankutbd.953558
dc.identifier.endpage569en_US
dc.identifier.issn1300-7580
dc.identifier.issn2148-9297
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-85141353575en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage555en_US
dc.identifier.trdizinid1137442en_US
dc.identifier.urihttps://doi.org/10.15832/ankutbd.953558
dc.identifier.urihttps://search.trdizin.gov.tr/yayin/detay/1137442
dc.identifier.urihttps://hdl.handle.net/11616/92677
dc.identifier.volume28en_US
dc.identifier.wosWOS:000880378700001en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakTR-Dizinen_US
dc.language.isoenen_US
dc.publisherAnkara Univ, Fac Agren_US
dc.relation.ispartofJournal of Agricultural Sciences-Tarim Bilimleri Dergisien_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectBlack mulberryen_US
dc.subjectMalondialdehydeen_US
dc.subjectPigmenten_US
dc.subjectProlineen_US
dc.subjectRelative water Contenten_US
dc.subjectTotal phenolicen_US
dc.titleEffects of Melatonin on Morus nigra cv. 'Eksi Kara' Exposed to Drought Stressen_US
dc.typeArticleen_US

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