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superoxide dismutase/oryza sativa
Länken sparas på Urklipp
Sida 1 från 167 resultat
Purification and properties of Oryza sativa Cu-Zn superoxide dismutase.
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Superoxide dismutase has been purified to homogeneity from Oryza sativa germinated seeds growth in the dark. The purified enzyme contained two electrophoretically distinct bands on continuous gel electrophoresis or analytical gel electrofocusing. SDS-PAGE showed a single band of an M(r) 15000 while
The molecular recognition mechanism for superoxide dismutase presequence binding to the mitochondrial protein import receptor Tom20 from Oryza sativa involves an LRTLA motif.
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Most mitochondrial proteins are synthesized in the cytosol as precursor and imported into the mitochondria by Tom complexes (translocase of outer membrane complexes). Knowledge of the binding mechanism between precursor and Tom20 in plants is very limited. Here, computational methods are employed to
Effects of microcystins on the growth and the activity of superoxide dismutase and peroxidase of rape (Brassica napus L.) and rice (Oryza sativa L.).
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Microcystins are naturally occurring hepatotoxic cyclic heptapeptides produced by some toxic freshwater cyanobacterial species. In this study, crude extract of toxic cyanobacterial blooms from Dianchi Lake in southwestern China was used to determine the effects of microcystins on rape (Brassica
Molecular cloning and characterization of a cDNA for an iron-superoxide dismutase in rice (Oryza sativa L.).
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We have isolated a cDNA encoding Fe-SOD from rice (Oryza sativa L.). The deduced amino acid sequence consists of a polypeptide with 255 amino acids, including a putative transit peptide (40 a.a.) in amino-terminal residues. This sequence is similar to the known plant Fe-SODs but not classified in
Cloning and characterization of a novel splicing isoform of the iron-superoxide dismutase gene in rice (Oryza sativa L.).
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Superoxide dismutases (SODs) are ubiquitous metalloenzymes in aerobic organisms that play a crucial role in protecting organisms against ROS. Here, we report the molecular cloning and functional characterization of a novel alternatively spliced variant of the iron-superoxide dismutase gene,
Molecular cloning and characterization of a cDNA for plastidic copper/zinc-superoxide dismutase in rice (Oryza sativa L.).
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A cDNA encoding plastidic Cu/Zn-SOD was isolated from rice. The deduced amino acid sequence included a transit peptide in the amino-terminal residues and showed a high similarity to those of plastidic Cu/Zn-SODs from other plants. The level of expression of this transcript was high in green leaves
Molecular cloning of the gene (SodCc1) that encodes a cytosolic copper/zinc-superoxide dismutase from rice (Oryza sativa L.).
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Nucleotide sequences of two cDNA clones encoding different Cu/Zn-superoxide dismutases expressed in developing rice seed (Oryza sativa L.).
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Cloning and sequencing analysis of a complementary DNA for manganese-superoxide dismutase from rice (Oryza sativa L.).
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Low pH-induced changes of antioxidant enzyme and ATPase activities in the roots of rice (Oryza sativa L.) seedlings.
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Soil acidification is the main problem in the current rice production. Here, the effects of low pH on the root growth, reactive oxygen species metabolism, plasma membrane functions, and the transcript levels of the related genes were investigated in rice seedlings (Oryza sativa L.) in a hydroponic
Effects of Copper Oxide Nanoparticles on the Growth of Rice (Oryza Sativa L.) Seedlings and the Relevant Physiological Responses.
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Rice (Oryza sativa L.), a major staple food for billions of people, was assessed for its phytotoxicity of copper oxide nanoparticle (CuO NPs, size < 50 nm). Under hydroponic condition, seven days of exposure to 62.5, 125, and 250 mg/L CuO NPs significantly suppressed the growth rate of
Evaluation of the anti-nitrative effect of plant antioxidants using a cowpea Fe-superoxide dismutase as a target.
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Nitric oxide cytotoxicity arises from its rapid conversion to peroxynitrite (ONOO(-)) in the presence of superoxide, provoking functional changes in proteins by nitration of tyrosine residues. The physiological significance of this post-translational modification is associated to tissue injury in
Influence of different seed priming techniques on oxidative and antioxidative responses during the germination of Oryza sativa varieties.
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NaCl and PEG stresses have negative impacts on seed germination and early seedling establishment in Oryza sativa. The present study was designed to ascertain the influence of different priming techniques (Hydro priming-HyP, Halo priming-HP, UV-B priming-UP) in enhancing oxidative and
Effects of silicon on Oryza sativa L. seedling roots under simulated acid rain stress.
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Silicon (Si) has an important function in reducing the damage of environmental stress on plants. Acid rain is a serious abiotic stress factor, and Si can alleviate the stress induced by acid rain on plants. Based on these assumptions, we investigated the effects of silicon on the growth, root
Heat and chilling induced disruption of redox homeostasis and its regulation by hydrogen peroxide in germinating rice seeds (Oryza sativa L., Cultivar Ratna).
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Extremes of temperature (both heat and chilling) during early inbibitional phase of germination caused disruption of redox-homeostasis by increasing accumulation of reactive oxygen species (superoxide and hydrogen peroxide) and significant reduction of antioxidative defense (assessed in terms of
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