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    The effects of organic selenium on some physiological and biochemical parameters in Hordeum Vulgare L. and Triticum Aestivum L. exposed to salt stress
    (2012) Yigit E.; Akbulut G.B.; Gok Y.; Bayram D.
    In this study, the protective role of organic selenium against salt stress on Hordeum vulgare L. and Triticum aestivum L. were determined. Seeds, treated with 0.004 M organic selenium in the pre-application, were germinated in environments exposed to 50, 100 and 200 mM salt stress (NaCl), in comparison to seeds without selenium treatment. The effects of 0.004 M organic selenium on peroxidase, ascorbate peroxidase, and lipid peroxidation were investigated in both plants. An evaluation of their germination and enzyme activities showed that organic selenium resulted in salient improvement when compared to the plants directly exposed to salt stress. The present study suggests that selenium can play a protective role during salt stress by enhancing the antioxidant defense system. © PSP.
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    The effects of reactive black 5 textile dye on peroxidase activity, lipid peroxidation and total chlorophyll content of phaseolus vulgaris L. CV. "Gina"
    (2012) Kaya A.; Yigit E.; Akbulut G.B.
    This study examined the effects of reactive black 5 (RB5) on peroxidase, lipid peroxidation and total chlorophyll content of Phaseolus vulgaris L. cv. "Gina". The beans were exposed to 200, 260, 338, 439, 571, 743, 965 and 1255 mg/L of RB5. Significant increase in peroxidase activity was identified in RB5-treated plants. The effects of RB5 on lipid peroxidation were analyzed. MDA content of RB5-treated plants was found to be higher in all application groups, except that of 439 mg/L. In addition, it was found that total chlorophyll content increased in all applications when compared to control group. Our findings indicate that RB5 causes significant changes in peroxidase activity, MDA content, and pigment system.
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    The effects of reactive phthalocyanine blue textile dye on peroxidase activity, lipid peroxidation and total chlorophyll content of Phaseolus vulgaris L. CV. "GINA"
    (Parlar Scientific Publications, 2014) Kaya A.; Yigit E.; Akbulut G.B.; Ates B.
    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. © by PSP.
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    Interactions among glutathione s-transferase, glutathione reductase activity and glutathione contents in leaves of Vicia faba L. subjected to flurochloridone
    (2012) Kaya A.; Yigit E.
    In this study, Vicia sativa L. "Selcuk-99" plant was treated with post-emergence flurochloridone in a concentration range of 11-72 mM. The effects of post-emergence flurochloridone treatments upon glutathione levels, glutathione s-transferase and glutathione reductase activities were investigated on the 1st, 5th, 10th, and 15th day after treatment. In the treatment groups, glutathione content, glutathione s-transferase and glutathione reductase activities increased only on the 15 th day. © PSP 2012.