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- MakaleAçık Erişim2018Scopus SJRQ4Effect of glyphosate on some protective systems in Zea mays L; [Glifosatın mısır (Zea mays L.)’da bazı koruyucu sistemlere etkisi]
Beker Akbulut, Gulcin; Yigit, Emel; Bayram, Dilek
Glyphosate is an herbicide that is applied after non-selective germination and affects plant growth. In this study, glyphosate was applied to Zea mays L. after germination, at a concentration range from 0.017 to 0.145 M in a growth chamber. The effects of this herbicide on some antioxidant enzymes, lipid peroxidation, total chlorophyll and total carbohydrate content were investigated on days 1, 5 and 10 following the application. Results showed that peroxidase (POD), ascorbate peroxidase (APX), superoxide dismutase (SOD), catalase (CAT) and glutathione-S-transferase (GST) were increased in the groups treated with glyphosate on days 5 and 10, but the activities of reduced glutathione (GSH) and glutathione reductase (GR) were decreased on day 10. Malondialdehyde (MDA) content indicating lipid peroxidation was increased on days 1, 5 and 10. Changes in total chlorophyll and total carbohydrate contents were found to be time-dependent. These increases and decreases in the antioxidant activities, MDA content, total chlorophyll and total carbohydrate content in Zea mays L. were determined as a symptom of cytotoxicity caused due to glyphosate.
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İncele - MakaleYalnız künye2014Scopus SJRQ3THE EFFECTS OF REACTIVE PHTHALOCYANINE BLUE TEXTILE DYE ON PEROXIDASE ACTIVITY, LIPID PEROXIDATION AND TOTAL CHLOROPHYLL CONTENT OF PHASEOLUS VULGARIS L. CV. GINA
Kaya, Armagan; Yigit, Emel; Akbulut, Gulcin Beker; Ates, Burhan
In this study, the effects of Reactive Phthalocyanine Blue (RPB) changes on peroxidase, malondialdehyde (MDA) content and total chlorophyll content of Phaseolus vulgaris L. (bean) were examined. The beans were exposed to different concentrations of RPB between 200-1255 mg/L. In the analyzed plants, different effects were observed on peroxidase activity. When compared to the control group, a significant decrease was identified in the plants which were treated with RPB except for the 1255 mg/L application group. Besides the effects of RPB on MDA content were analyzed. MDA content was found to be lower in all application groups except for 439 mg/L. In addition, total chlorophyll content increased in all application groups except for 338 mg/L when compared to the control group. These findings indicated that RPB caused significant changes in peroxidase activity, MDA content and total chlorophyll. It was shown that the textile dye had a toxic effect on the plants.
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