The aim of this study is to investigate the effect of low-intensity static magnetic fields (SMFs)... more The aim of this study is to investigate the effect of low-intensity static magnetic fields (SMFs) on invertase activity and growth on different newly identified molds. The most positive effect of SMFs on invertase activity and growth was observed for Aspergillus niger OZ-3. The submerged production of invertase was performed with the spores obtained at the different exposure times (120, 144, 168, and 196 hr) and magnetic field intensities (0.45, 3, 5, 7, and 9 mT). The normal magnetic field of the laboratory was assayed as 0.45 mT (control). Optimization of magnetic field intensity and exposure time significantly increased biomass production and invertase activity compared to 0.45 mT. The maximum invertase activity (51.14 U/mL) and biomass concentration (4.36 g/L) were achieved with the spores obtained at the 144 hr exposure time and 5 mT magnetic field intensity. The effect of low-intensity static magnetic fields (SMFs) on invertase activities of molds was investigated for the first time in the present study. As an additional contribution, a new hyper-invertase-producing mold strain was isolated.Supplemental materials are available for this article. Go to the publisher's online edition of Preparative Biochemistry and Biotechnology to view the supplemental file.
Abstract The aim of this study was to investigate the possible oxidative stress and the antioxida... more Abstract The aim of this study was to investigate the possible oxidative stress and the antioxidant response, which were caused on maize by boron (B). For this, 11-and 15-day-old maize seedlings were subjected to 2 or 4 mM B in the form of boric acid (H 3 BO 3) for 2 and/or 6 days. At the end of the treatment period, root length, hydrogen peroxide (H 2 O 2) content, malondialdehyde (MDA) content and the antioxidant enzymes superoxide dismutase (SOD), peroxidase (POX) and catalase (CAT) were measured.
The aim of the present study was to investigate the effect of low-intensity static magnetic field... more The aim of the present study was to investigate the effect of low-intensity static magnetic fields (SMFs) on invertase activity and growth on different newly identified moulds. The most positive effect of SMFs on invertase activity and growth was observed for Aspergillus niger OZ–3. The submerged production of invertase was performed with the spores obtained at the different exposure times (120, 144, 168 and 196 h) and magnetic field intensities (0.45, 3, 5, 7 and 9 mT).
Abstract The effects of nitric oxide (NO) on chilling tolerance (contents of hydrogen peroxide (H... more Abstract The effects of nitric oxide (NO) on chilling tolerance (contents of hydrogen peroxide (H 2 O 2) and superoxide anion (O 2–) and lipid peroxidation level (malondialdehyde, MDA)) and the activities of antioxidant enzymes (superoxide dismutase (SOD), peroxidase (POX) and catalase (CAT)) were investigated in the leaves of wheat (Triticum aestivum L.) exposed to chilling. NO treatment was carried out through spraying of sodium nitroprusside (SNP), which is a donor of NO.
The aim of this study is to investigate the effect of low-intensity static magnetic fields (SMFs)... more The aim of this study is to investigate the effect of low-intensity static magnetic fields (SMFs) on invertase activity and growth on different newly identified molds. The most positive effect of SMFs on invertase activity and growth was observed for Aspergillus niger OZ-3. The submerged production of invertase was performed with the spores obtained at the different exposure times (120, 144, 168, and 196 hr) and magnetic field intensities (0.45, 3, 5, 7, and 9 mT). The normal magnetic field of the laboratory was assayed as 0.45 mT (control). Optimization of magnetic field intensity and exposure time significantly increased biomass production and invertase activity compared to 0.45 mT. The maximum invertase activity (51.14 U/mL) and biomass concentration (4.36 g/L) were achieved with the spores obtained at the 144 hr exposure time and 5 mT magnetic field intensity. The effect of low-intensity static magnetic fields (SMFs) on invertase activities of molds was investigated for the first time in the present study. As an additional contribution, a new hyper-invertase-producing mold strain was isolated.Supplemental materials are available for this article. Go to the publisher's online edition of Preparative Biochemistry and Biotechnology to view the supplemental file.
Abstract The aim of this study was to investigate the possible oxidative stress and the antioxida... more Abstract The aim of this study was to investigate the possible oxidative stress and the antioxidant response, which were caused on maize by boron (B). For this, 11-and 15-day-old maize seedlings were subjected to 2 or 4 mM B in the form of boric acid (H 3 BO 3) for 2 and/or 6 days. At the end of the treatment period, root length, hydrogen peroxide (H 2 O 2) content, malondialdehyde (MDA) content and the antioxidant enzymes superoxide dismutase (SOD), peroxidase (POX) and catalase (CAT) were measured.
The aim of the present study was to investigate the effect of low-intensity static magnetic field... more The aim of the present study was to investigate the effect of low-intensity static magnetic fields (SMFs) on invertase activity and growth on different newly identified moulds. The most positive effect of SMFs on invertase activity and growth was observed for Aspergillus niger OZ–3. The submerged production of invertase was performed with the spores obtained at the different exposure times (120, 144, 168 and 196 h) and magnetic field intensities (0.45, 3, 5, 7 and 9 mT).
Abstract The effects of nitric oxide (NO) on chilling tolerance (contents of hydrogen peroxide (H... more Abstract The effects of nitric oxide (NO) on chilling tolerance (contents of hydrogen peroxide (H 2 O 2) and superoxide anion (O 2–) and lipid peroxidation level (malondialdehyde, MDA)) and the activities of antioxidant enzymes (superoxide dismutase (SOD), peroxidase (POX) and catalase (CAT)) were investigated in the leaves of wheat (Triticum aestivum L.) exposed to chilling. NO treatment was carried out through spraying of sodium nitroprusside (SNP), which is a donor of NO.
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