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Effect of salt stress on the antioxidant defense system in lentil (Lens Culinaris M.) seedlings
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Ebru Bandeoglu.pdf
Date
2001
Author
Bandeoğlu, Ebru
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https://hdl.handle.net/11511/12402
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Graduate School of Natural and Applied Sciences, Thesis
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Effect of drought and salt stresses on the gene expression levels of antioxidant enzymes in lentil (lens culinaris m.) seedlings
Aksoy, Emre; Yücel, Ayşe Meral; Department of Biology (2008)
This study was carried out for understanding of antioxidant mechanisms of lentil under abiotic stress conditions. For this aim, 14 days old lentil seedlings (Lens culinaris Medik cv. Sultan-1) were subjected to drought (20% PEG 6000), and salt (150 mM NaCl ) stress for 6, 12 and 24 hours, for 3, 5 and 7 days. PCR conditions for Mn SOD, Cu/Zn SOD, chloroplastic/mitochondrial GR, CAT and chloroplast /stromal APX antioxidant enzymes were optimized. Then, total RNA was isolated from stressed and non-stressed pl...
Effect of salt stress on antioxidant defense systems of sensitive and resistance cultivars of lentil(Lens culinaris M.)
Cicerali, Işın Nur; Yücel, Ayşe Meral; Department of Biotechnology (2004)
In this study, two lentil cultivars (Lens culinaris, Medik.) (ILL5582-salt tolerant and ILL590) were characterized and compared due to their NaCl susceptibility and antioxidant mechanism was examined under laboratory conditions. Physiological parameters such as wet-dry weight, root-shoot lengths, cell membrane stability, lipid peroxidation in terms of malondialdehyde (MDA), H2O2, proline contents were determined. The activities of antioxidant enzymes such as superoxide dismutase (SOD: EC 1.15.1.1), catalase...
Effect of drought and salt stresses on antioxidant defense system and physiology of lentil (lens culinaris m.) seedlings
Ercan, Oya; Öktem, Hüseyin Avni; Department of Biology (2008)
In this study, 14 days old lentil seedlings (Lens culinaris Medik cv. Sultan), which were subjected to 7 days of drought (20% PEG 6000), and salt (150 mM NaCl ) stress , were examined in a comparative manner for the effects of drought and salt stress treatments. In shoot and root tissues physiological parameters such as wet-dry weight, relative water content, root-shoot lengths, membrane electrolyte leakage, and lipid peroxidation in terms of malondialdehyde (MDA) were determined. H2O2 content, proline accu...
Effect of boron and iron stress on phytosiderophore production in barley
İnce, Yetkin Çaka; Yücel, Ayşe Meral; Department of Biology (2015)
Boron and iron are essential nutrients for growth and development of higher plants. Deficiency and toxicity of them cause significant changes in physiological, cellular and molecular make-up of plants. Iron uptake in barley is mainly achieved by production and release of phytosiderophores to the environment. On the other hand, production of phytosiderophores are affected by concentrations of boron and iron. Four enzymes which function in phytosiderophore hydroxymugineic acid (HMA) production namely NAS, NAA...
Effect of different stresses on trehalose levels in Rhizopus oryzae
Uyar, Ebru Ozer; Hamamcı, Haluk; TÜRKEL, SEZAİ (2010-08-01)
Rhizopus oryzae accumulates and degrades trehalose in response to environmental stress conditions such as heat, osmotic stress, nitrogen starvation and pH. When heat stress was applied to R. oryzae, the trehalose content of the cells was increased from 0.9 to 4.8 mg/g dw and when the stress was relieved it decreased back to 1.1 mg/g dw. Under osmotic stress and nitrogen starvation, trehalose content was increased by 3.5 and 3 fold, respectively. The decrease in external pH increased trehalose level up to 2....
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E. Bandeoğlu, “Effect of salt stress on the antioxidant defense system in lentil (Lens Culinaris M.) seedlings,” Middle East Technical University, 2001.