INHIBITION OF PROTON TRANSPORT ACTIVITY OF MICROSOMAL MEMBRANE VESICLES OF BARLEY ROOTS BY ALUMINIUM
スポンサーリンク
概要
- 論文の詳細を見る
The extrusion of protons from the roots of barley (Hordeum vulgare L.) seedlings in the presence of KCl decreased markedly after treatment of the samples with 1 mM AlCl_3 at pH 5.5. The membrane vesicles with ATP-dependent proton transport activity were prepared from barley roots. The proton transport activity measured by the quenching of the fluorescence of quinacrine was inhibited by approximately 50% in the presence of 100 μM AlCl_3 at pH 6.5 but the inhibition was only 10% at pH 7.5. The values of V_<max> and K_m for ATP related to the proton transport activity of the vesicles were affected markedly by AlCl_3. The inhibition of the proton transport activity of the vesicles due to Al was effectively restored by citric acid. The results suggest that one of the mechanism of Al toxicity in plant roots is the inhibition of the proton transport activity associated with the cell membrane which in turn leads to the inhibition of proton extrusion from the roots.
- 一般社団法人日本土壌肥料学会の論文
著者
関連論文
- Sequence Upstream of the Wheat (Triticum aestivum L.) ALMT1 Gene and its Relationship to Aluminum Resistance
- Evidence for the Plasma Membrane Localization of Al-activated Malate Transporter (ALMT1)
- Al Binding in the Epidermis Cell Wall Inhibits Cell Elongation of Okra Hypocotyl
- Phenylpropanoids as a Protectant of Aluminum Toxicity in Cultured Tobacco Cells
- Early events induced by aluminum stress in elongating cells of wheat root
- Aluminum Inhibits Growth and Stability of Cortical Microtubules in Wheat (Triticum aestivum) Roots
- Putative Ca^ Channels of Plasma Membrane Vesicles Are Not Involved in the Tolerance Mechanism of Aluminum in Aluminum Tolerant Wheat (Triticum aestivum L.) Cultivar
- Possible Involvement of Abscisic Acid in Increases in Activities of Two Vacuolar H^+ -Pumps in Barley Roots under Aluminum Stress
- In vivo Treatments That Modulate PP_i-Dependent H^+ Transport Activity of Tonoplast-Enriched Membrane Vesicles from Barley Roots
- Aluminum Stress Increases K^+ Efflux and Activities of ATP- and PP_i-Dependent H^+ Pumps of Tonoplast-Enriched Membrane Vesicles from Barley Roots : ENVIRONMENTAL AND STRESS RESPONSES : MEMBRANES AND BIOENERGETICS
- Synergistic Inhibition of Growth by Aluminum and Iron of Tobacco (Nicotiana tabacum L.)Cells in Suspension Culture : ENVIRONMENTAL AND STRESS RESPONSES : PROTEINS, ENZYMES AND METABOLISM
- Quantitative Estimation of Aluminium Toxicity in Cultured Tobacco Cells : Correlation between Aluminium Uptake and Growth Inhibition : GROWTH AND DEVELTOPMENT : ENVIRONMENTAL AND STRESS RESPONSES
- Studies on the Mechanism of Aluminum Tolerance in Pea (Pisum sativum L.) Using Aluminum-Tolerant Cultivar 'Alaska' and Aluminum-Sensitive Cultivar 'Hyogo'(Plant Nutrition)
- Responses to Aluminium of Suspension-Cultured Tobacco Cells in a Simple Calcium Solution
- Cell Death Process Initiated by a Combination of Aluminium and Iron in Suspension-Cultured Tobacco Cells (Nicotiana tabacum): Apoptosis-Like Cell Death Mediated by Calcium and Proteinase
- Enhancement of Callose Production by a Combination of Aluminum and Iron in Suspension-Cultured Tobacco (Nicotiana tabacum) Cells
- Oxidative Damage to Membranes by a Combination of Aluminum and Iron in Suspension-Cultured Tobacco Cells
- Stimulation of H^+ Extrusion and Plasma Membrane H^+-ATPase Activity of Barley Roots by Ammonium-Treatment
- Response of the Plant Root to Aluminum Stress : Analysis of the Inhibition of the Root Elongation and Changes in Membrane Function
- Effects of in Vivo Treatment with Abscisic Acid and/or Cytokinin on Activities of Vacuoler H^+ Pumps of Tonoplast-Enriched Membrane Vesicles Prepared from Barley Roots
- Characterization of aluminum : induced efflux of citrate from the root apex of soybean
- 9-14 The resistant mechanism to iron deficiency in red clover. II.The characteristics and functions of root exudates
- Specific Secretion of Citric Acid Induced by Al Stress in Cassia tora L.
- Changes in the Structure of Chromatin in Pea Shoots upon a Shift in Growth Temperature from 2℃ to 25℃
- A Gene Encoding Multidrug Resistance (MDR)-Like Protein is Induced by Aluminum and Inhibitors of Calcium Flux in Wheat
- CLONING AND SEQUENCING OF THE cDNAsINDUCED BY ALUMINIUM TREATMENT IN TOBACCO CELLS
- Increase in Proton-Transport Activity of Tonoplast Vesicles ad an Adaptive Response of Barley Roots to NaCl Stress
- Characterization of an Anion Transporter in the Plasma Membrane of Barley Roots
- Salt Stress-Induced Enhancement of Anion Efflux and Anion Transport Activity in Plasma Membrane of Barley Roots
- Stimulation of Plasma Membrane H^+-Transport Activity in Barley Roots by Salt Stress
- Localization of the NaCl-Sensitive Membrane Fraction in Cucumber Roots by Centrifugation on Sucrose Density Gradients
- Repression of Asolectin-Dependent Activation of Partially Lipid Depleted ATPase Prepared from the Plasma Membrane-Enriched Fraction of Cucumber Roots due to Ca^ Starvation
- Molecular Aspect of Al Tolerance in Crop Plants : Novel Al-Activated Malate Transporter Gene in Wheat Roots
- In Vivo Treatment of Barley Roots with Vanadate Increases Vacuolar H^+-Translocating ATPase Activity of the Tonoplast-Enriched Membrane Vesicles and the Level of Endogenous ABA : MEMBRANES AND BIOENERGETICS
- The Impact of Aluminium on the Distribution of Cell Wall Glycoproteins of Pea Root Tip and Their Al-Binding Capacity
- Aluminium Tolerance Mechanisms in Phaseolus vulgaris L.: Citrate Synthase Activity and TTC Reduction Are Well Correlated with Citrate Secretion
- INHIBITION OF PROTON TRANSPORT ACTIVITY OF MICROSOMAL MEMBRANE VESICLES OF BARLEY ROOTS BY ALUMINIUM
- Reconstitution of Plasma Membrane ATPase from Mature Cucumber Roots
- Changes of Some Properties of the Plasma Membrane-Enriched Fraction of Barley Roots Related to Aluminum Stress : Membrane-Associated ATPase, Aluminum and Calcium