Membrane Permeability-Regulation by Exogenous Sugarss during Senescence of Oat Leaf in Light and Darkness

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概要

• 論文の詳細を見る

• The effect of sugars (sucrose, glucose and fructose) on normal physiological changes during senescence of foliar segments of Avena sativa cv. Suregrain was studied. In general application of sugars raised tissue permeability both in the light and in darkness. This change was associated with increases in endogenous sugars, hydroperoxide content and lipoxygenase activity. In the light it was also associated with low catalase activity. Sugars did not influence superoxide dismutase activity. In the light, sugars accelerated senescence, measured as decreases in chlorophyll and increases in soluble amino acids. In darkness sugars delayed senescence. The effect of sugars in the light seemed to result from an increase in photo-oxidations associated with the increase in permeability. The delaying effect on senescence, found in darkness, seemed to result from an increase in respiratory activity plus the lack of (or combined with the lack of) photo-oxidations.

• 日本植物生理学会の論文

著者

• Trippi Victorio

  Laboratorio de Fisiologia Vegetal, Facultad de Ciencias E., F. y N., Universidad Nacional de Cordoba

• Trippi Victorio

  Laboratorio De Fisiologfa Vegetal

• Trippi Victorio

  Laboratorio De Fisiologia Vegetal Facultad De Ciencias Ex. F.y N.universidad Nacional De Cordoba

• Luna C

  Univ. Nacional De Co´rdoba Co´rdoba Arg

• Luna Celina

  Laboratorio de Fisiologia Vegetal, Facultad de Ciencias Ex., F.y N.Universidad Nacional de Cordoba

• Luna Celina

  Laboratorio De Fisiologia Vegetal Facultad De C.e.f. Y Naturales. Universidad Nacional De Cdrdoba

関連論文

• The Senescence Process in Oat Leaves and its Regulation by Oxygen Concentration and Light Irradiance
• Membrane Permeability-Regulation by Exogenous Sugarss during Senescence of Oat Leaf in Light and Darkness
• Oxidative Damage Caused by an Excess of Copper in Oat Leaves : ENVIRONMENTAL AND STRESS RESPONSES
• Glycolate-, Xanthine-and Paraquat-Mediated Inhibition of Nitrate Reductase in Detached Oat Leaves
• Antioxidant Defences under Hyperoxygenic and Hyperosmotic Conditions in Leaves of Two Lines of Maize with Differential Sensitivity to Drought
• Oxidative Stress Induces High Rate of Glutathione Reductase Synthesis in a Drought-Resistant Maize Strain : PROTEINS, ENZYMES AND METABOLISM
• Effect of Hydrogen Peroxide on Degradation of Cell Wall Associated Proteins in Growing Bean Hypocotyls : GROWTH AND DEVELOPMENT : PROTEINS, ENZYMES AND METABOLISM
• Hydroxyl Radicals and a Thylakoid-Bound Endopeptidase are Involved in Light-and Oxygen-Induced Proteolysis in Oat Chloroplasts : ENVIRONMENTAL AND STRESS RESPONSES : PROTEINS, ENZYMES AND METABOLISM
• Oxygen-and Light-Induced Proteolysis in Isolated Oat Chloroplasts
• The Effect of Oxygen Radicals on Proteolysis in Isolated Oat Chloroplasts
• Effects of Oxidative Stress Caused by Oxygen and Hydrogen Peroxide on Energy Metabolism and Senescence in Oat Leaves
• Sucrose-Modulated Morphogenesis in Anagallis arvensis L.

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