Oxidation of Quercetin by Carotenoid Radical Generated in Illuminated Spinach Chloroplasts : The Effect of Ascorbate on Quercetin Oxidation
スポンサーリンク
概要
- 論文の詳細を見る
Carotenoid photobleaching in the presence of carbonylcyanide m-chlorophenylhydrazon (CCCP) was suppressed by quercetin, but not by ascorbate. When quercetin suppressed carotenoid photobleaching, quercetin was oxidized. The oxidation of quercetin was inhibited by ascorbate with half-inhibition at about 10 μM. Ascorbate was oxidized by CCCP-poisoned chloroplasts upon illumination. The rate of ascorbate oxidation in the presence of both ascorbate and quercetin was lower than that in the presence of ascorbate alone. Based on the present results, the physiological significance of quercetin as an antioxidant and the redox reaction between ascorbate and oxidized quercetin are discussed.
- 日本植物生理学会の論文
著者
-
TAKAHAMA Umeo
Kyushu Dental University
-
Takahama U
Kyushu Dental Univ. Kitakyushu Jpn
-
Takahama Umeo
Departmcnt Of Biology Faculty Of Science Kyushu University
関連論文
- Effect of hydrogen peroxide on the fluorescence and the C550 absorption change of spinach chloroplast fragments
- Oxidation-reduction reactions between electron transfer components and hydrogen peroxide in photosystem II of chloroplasts
- Oxidation of Quercetin by Salivary Components II. Effects of Quercetin on Reactive Oxygen Metabolism by Salivary Polymorphonuclear Leukocytes
- Oxidation of Quercetin by Salivary Components I. Salivary Peroxidase-Dependent Oxidation of Quercetin and Characterization of the Oxidation Products
- Quercetin Glucosides are Hydrolyzed to Quercetin in Human Oral Cavity to Participate in Peroxidase-Dependent Scavenging of Hydrogen Peroxide
- Flavonoids and Some Other Phenolics as Substrates of Peroxidase: Physiological Significance of the Redox Reactions
- Effects of Ascorbate on the Oxidation of Derivatives of Hydroxycinnamic Acid and the Mechanism of Oxidation of Sinapic Acid by Cell Wall-Bound Peroxidases : GENES STRUCTURE AND EXPRESSION
- A Possible Mechanism for the Oxidation of Sinapyl Alcohol by Peroxidase-Dependent Reactions in the Apoplast: Enhancement of the Oxidation by Hydroxycinnamic Acids and Components of the Apoplast
- Detection of Monodehydroascorbic Acid Radical in Sulfite-Treated Leaves and Mechanism of its Formation
- AGE-DEPENDENT CHANGES IN LEVELS OF ASCORBIC ACID AND CHLOROGENIC ACID, AND ACTIVITIES OF PEROXIDASE AND SUPEROXIDE DISMUTASE IN THE APOPLAST OF TOBACCO LEAVES
- The Association of Ascorbate and Ascorbate Oxidase in the Apoplast with IAA-Enhanced Elongation of Epicotyls from Vigna angularis : GROWTH AND DEVELTOPMENT : GENES STRUCTURE AND EXPRESSION
- Participation of Peroxidase in the Metabolism of 3,4-Dihydroxyphenylalanine and Hydrogen Peroxide In Vacuoles of Vicia faba L. Mesophyll Cells
- Age-Dependent Changes in Levels of Ascorbic Acid and Chlorogenic Acid, and Activities of Peroxidase and Superoxide Dismutase in the Apoplast of Tobacco leaves : Mechanism of the Oxidation of Chlorogenic Acid in the Apoplast
- 3, 4-Dihydroxyphenylalanine Is Oxidized by Phenoxyl Radicals of Hydroxycinnamic Acid Esters in Leaves of Vicia faba L.
- PRODUCTION OF PHENOLICS AND ACTIVE OXYGEN SPECIES AS ANTIMICROBIAL COMPOUNDS DURING MATURING OF ONIONSCALES
- THE MECHANISM OF PEROXIDASE-DEPENDENT OXIDATION OF 3, 4-DIHYDROXYPHENYLALANINE IN MESOPHYLL CELLS OF Vicia Faba
- Phenolic Components of Brown Scales of Onion Bulbs Produce Hydrogen Peroxide by Autooxidation
- Free radicals produced by the oxidation of gallic acid and catechin derivatives
- Enhancement of Peroxidase-Dependent Oxidation of Sinapyl Alcohol by an Apoplastic Component, 4-Coumaric Acid Ester Isolated from Epicotyls of Vigna angularis L.
- Changes Induced by Abscisic Acid and Light in the Redox State of Ascorbate in the Apoplast of Epicotyls of Vigna angularis : GROWTH AND DEVELTOPMENT : ENVIRONMENTAL AND STRESS RESPONSES
- A Reduced Activity of Catalase as a Basis for Light Dependent Methionine Sensitivity of a Chlamydomonas reinhardtii Mutant
- Distribution of Flavonols and Enzymes Participating in the Metabolism in Onion Bulbs : Mechanism of Accumulation of Quercetin and Its Glucosides in the Abaxial Epidermis
- Quercetin and the Glucosides Inhibit Nitration of a Salivary Component 4-Hydroxyphenylacetic Acid Catalyzed by Salivary Polymorphonuclear Leukocytes
- Oxidation of Quercetin by Carotenoid Radical Generated in Illuminated Spinach Chloroplasts : The Effect of Ascorbate on Quercetin Oxidation
- Regulation of Peroxidase-Dependent Oxidation of Phenolics by Ascorbic Acid : Different Effects of Ascorbic Acid on the Oxidation of Coniferyl Alcohol by the Apoplastic Soluble and Cell Wall-Bound Peroxidases from Epicotyls of Vigna angularis
- Effects of electron donor and acceptors, electron transfer mediators, and superoxide dismutase on lipid peroxidation in illuminated chloroplast fragments
- A Role of Hydrogen Peroxide in the Metabolism of Phenolics in Mesophyll Cells of Vicia faba L.
- Suppression of Carotenoid Photobleaching by Kaempferol in Isolated Chloroplasts
- Light-induced chemiluminescence of luminol in spinach chloroplast fragments : Reaction of O_2^- with electron transfer components
- Stimulation of lipid peroxidation and carotenoid bleaching by deuterium oxide in illuminated chloroplast fragments : Participation of singlet molecular oxygen in the reactions
- Oxidation Products of Kaempferol by Superoxide Anion Radical
- Hydrogen Peroxide-dependent Synthesis of Flavonols in Mesophyll Cells of Vicia faba L.
- Notes on the Anthocyanidin Types and Metals in Blue Flowers and Fruits
- Oxidation of Flavonols by Hydrogen Peroxide in Epidermal and Guard Cells of Vicia faba L.
- Suppression of lipid peroxidation by β-carotene in illuminated chloroplast fragments : Evidence for β-carotene as a quencher of singlet molecular oxygen in chloroplasts
- Effects of Deuterium Oxide and Free Radical Scavengers on Carotenoid Photobleaching in Spinach Chloroplasts
- Stimulation of light-induced lipid peroxidation by salts in isolated chloroplasts in the presence of carbonylcyanide m-chlorophenylhydrazone
- Hydrogen Peroxide-Dependent Oxidation of 3 ,4-Dihydroxyphenylalanine in Vacuoles of Mesophyll Cells of Vicia faba L. Participation of Peroxidase in the Oxidation
- Formation of singlet molecular oxygen in illuminated chloroplasts. Effects on photoinactivation and lipid peroxidation