Arsenic accumulation and biological responses of watercress (Nasturtium officinale R. Br.) exposed to arsenite

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dc.contributor.author Öztürk, Fatma
dc.contributor.author Duman, Fatih
dc.contributor.author Leblebici, Zeliha
dc.contributor.author Temizgül, Rıdvan
dc.date.accessioned 2021-09-14T06:21:24Z
dc.date.available 2021-09-14T06:21:24Z
dc.date.issued 2010
dc.identifier.uri http://hdl.handle.net/20.500.11787/4809
dc.description.abstract The objective of the present study was to investigate biological responses of watercress (Nasturtium officinale R. Br.) under arsenic stress. Watercress samples were exposed to 1, 3, 5, 10, and 50 μM of arsenite (As(III)) for 7 days. Arsenic accumulation in the leaves of watercress was investigated, and its influence on the rates of lipid peroxidation, ion leakage, photosynthetic pigmentation, proline content, enzymatic antioxidant performance, and DNA damage was examined. Watercress was capable of accumulating large amounts of arsenic in the leaves. The highest accumulation of As (1012 μg g−1 dw) was found in the leaves of the plants exposed to 50 μM of As(III). Plant growth was stimulated at 1 μM As(III) application, while higher concentrations unfavorably affected plant growth. It was observed that exposure to As(III) significantly increased the ion leakage and lipid peroxidation compared to the control. An increase in protein and proline content was observed, followed by a gradual decline at higher concentrations. Stress conditions caused up-regulation of the antioxidant enzyme activity in dose dependent manner. The results indicated that the changes that occur in the random amplified polymorphic DNA (RAPD) profiles after an As(III) treatment, include the presence of certain modifications in the band intensity and the gain or loss of bands. The results of the present study confirmed that N. officinale is capable of overcoming the occurrence of As(III)-induced stress, especially, due to conditions of moderate exposure. tr_TR
dc.language.iso eng tr_TR
dc.publisher Elsevier tr_TR
dc.relation.isversionof 10.1016/j.envexpbot.2010.03.006 tr_TR
dc.rights info:eu-repo/semantics/openAccess tr_TR
dc.subject Nasturtium officinale tr_TR
dc.subject Arsenite tr_TR
dc.subject Accumulation tr_TR
dc.subject Biological response tr_TR
dc.subject DNA damage tr_TR
dc.title Arsenic accumulation and biological responses of watercress (Nasturtium officinale R. Br.) exposed to arsenite tr_TR
dc.type article tr_TR
dc.relation.journal Environmental and Experimental Botany tr_TR
dc.contributor.department Nevşehir Hacı Bektaş Veli Üniversitesi/fen-edebiyat fakültesi/moleküler biyoloji ve genetik bölümü/moleküler biyoloji ve genetik anabilim dalı tr_TR
dc.contributor.authorID 115966 tr_TR
dc.identifier.volume 69 tr_TR
dc.identifier.issue 2 tr_TR
dc.identifier.startpage 167 tr_TR
dc.identifier.endpage 174 tr_TR


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