EFFECT OF pH ON IONIC SPECIES OF ALUMINUM IN MEDIUM AND ON ALUMINUM TOXICITY UNDER SOLUTION CULTURE
スポンサーリンク
概要
- 論文の詳細を見る
In a medium with a lower pH, upward translocation of Al to shoots increased, whereas Al absorption by roots decreased. Al content of excised roots considerably oversaturated root CEC at pH 4.5-5.0. Monomer-Al ions predominated in the medium with a lower pH while at pH 4.7 the hydroxy-Al polymer ions predominated and at a pH of above cα. 4.7 the precipitated highly basic Al polymers predominated. Al tolerance at ca. pH 4.5 was in the order of buckwheat>garland chrysanthemum, soybean, Japanese radish>cucumber>tomato, barley>maize. At cα. pH 4.5, Al tolerance was positively correlated with Al contents of roots and tops. In another experiment, Al contents in roots of barley, wheat and oats were similar in the solution where the monomer-Al ions (pH 4.1) predominated, and increased in the solution where hydroxy-Al polymer ions (pH 4.5) predominated. The degree of increase in Al content of the roots was parallel to the Al tolerance. K content of roots considerably decreased in Al-injured roots. In conclusion, the following mechanisms are proposed. Hydroxy-Al polymer ions may be more toxic to plant roots than monomer-Al ions. As the Al-excluding power of the plasmalemma of root cells of the Al tolerant plant species is stronger than that of the Al sensitive ones, the Al tolerant plants may exclude more Al outside the plasmalemma of root cells than the sensitive ones and a larger amount of hydroxy-Al polymer ions may finally polymerize and precipitate there. On the other hand, monomer-Al ions though excluded may not polymerize and therefore the Al content of roots may not oversaturate root CEC at lower pH.
- 社団法人日本土壌肥料学会の論文
著者
-
Wagatsuma Tadao
Faculty Of Agriculture
-
EZOE Yuji
Faculty of Agriculture, Yamagata University
-
Ezoe Yuji
Faculty Of Agriculture Yamagata University
関連論文
- Greater contribution of low-nutrient tolerance to sorghum and maize growth under combined stress conditions with high aluminum and low nutrients in solution culture simulating the nutrient status of tropical acid soils(Plant Nutrition)
- Methylene Blue Stainability of Root-Tip Protoplasts as an Indicator of Aluminum Tolerance in a Wide Range of Plant Species, Cultivars and Lines(Plant Nutrition)
- A New and Simple Technique for the Isolation of Plasma Membrane Lipids from Root-Tips(Plant Nutrition)
- Plasma Membrane Lipids Are the Powerful Components for Early Stage Aluminum Tolerance in Triticale
- Arbuscular Mycorrhizal Fungal Communities Associated with Some Pioneer Plants in the Lahar Area of Mt. Pinatubo, Philippines(Soil Biology)
- Inhibition of Pre-Symbiotic Hyphal Growth of Arbuscular Mycorrhizal Fungus Gigaspora margarita by Root Exudates of Lupinus spp.
- Semi-Quantitative Analysis of Arbuscular Mycorrhizal Colonization of Onion Roots Inoculated with Single or Mixed Species Based upon PCR-RFLP
- Arbuscular Mycorrhizal Colonization in Lupinus and Related Genera
- Effect of Concentration of Phosphate on Spore Germination and Hyphal Growth of Arbuscular Mycorrhizal Fungus, Gigaspora margarita Becker & Hall
- Effect of Phosphate Application to Arbuscular Mycorrhizal Onion on the Development and Succinate Dehydrogenase Activity of Internal Hyphae
- Formation of appressoria by the arbuscular mycorrhizal fungus Gigaspora margarita on roots of Allium cepa is linked with root age
- 9-5 Specific construction of lipid molecules for the root-tip plasma membrane of aluminum-tolerant rice cultivar : Comparative studies on resistance response to high Al conditions (48)
- P9-2 Connection of lipid composition in root-tip portion with differential aluminum tolerance between cultivars in several plant species : Comparative studies on resistance response to high aluminum conditions (51)
- P9-1 Characterization of the primary strategies for production of sorghum and maize grown in different concentrations of aluminum and nutrients : Comparative studies on resistance response to high aluminum conditions (52)
- P9-8 Characterization of the primary strategies for better sorghum production in high aluminum and low nutrients conditions mimicking typical acid soil : Comparative studies on resistance response to high aluminum conditions (49)
- 9-8 Aluminum tolerance is not the primary strategy to determine long-term growth of rice in low ionic strength medium : Comparative studies on resistance response to high aluminum conditions (47)
- 9-7 Plasma membrane lipids and its associated flavonoids controlling differential early stage aluminum tolerances in pedigree cultivers of aluminum-tolerant Sasanishiki : Comparative studies on resistance response to high aluminum conditions (46)
- DESTRUCTION PROCESS OF PLANT ROOT CELLS BY ALUMINUM
- HIGH TOXICITY OF HYDROXY-ALUMINUM POLYMER IONS TO PLANT ROOTS
- Effect of Phosphorus Application on the Contents of Amino Acids and Reducing Sugars in the Rhizosphere and VA Mycorrhizal Infection of White Clover
- CHARACTERISTICS OF UPWARD TRANSLOCATION OF ALUMINUM IN PLANTS
- EFFECT OF pH ON IONIC SPECIES OF ALUMINUM IN MEDIUM AND ON ALUMINUM TOXICITY UNDER SOLUTION CULTURE
- RELATIONSHIP BETWEEN DIFFERENTIAL ALUMINUM TOLERANCE AND PLANTINDUCED pH CHANGE OF MEDIUM AMONG BARLEY CULTIVARS
- CHARACTERIZATION OF ABSORPTION SITES FOR ALUMINUM IN THE ROOTS
- EFFECT OF NON-METABOLIC CONDITIONS ON THE UPTAKE OF ALUMINUM BY PLANT ROOTS
- Leaf herbivory by Spodoptera litura increases arbuscular mycorrhizal colonization in roots of soybean(Soil biology)
- Leaf herbivory by Spodoptera litura increases arbuscular mycorrhizal colonization in roots of soybean