ALLEVIATION OF CADMIUM TOXICITY ON MAIZE SEEDLINGS BY CALCIUM

被引：14
作者：
ELENANY, AE
机构：
[1] Botany Department, Faculty of Science, Assiut University, Assiut
来源：
BIOLOGIA PLANTARUM | 1995年 / 37卷 / 01期
关键词：
CAROTENOIDS; CHLOROPHYLL; GERMINATION; RESPIRATION RATE; SACCHARIDES; ZEA-MAYS;
D O I：
10.1007/BF02913003
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
The rate of germination, radicle and plumule length, fresh and dry mass of maize seedlings were increased as Ca2+ was added to the nutrient solution, which contained different levels of Cd2+, especially at low concentration of Ca2+ (5 mM) and high concentrations of Cd2+ (1.4 and 1.8 mM). The biosynthesis of pigments, respiration rate and content of soluble saccharides in endosperm were reduced sharply as the concentration of Cd2+ in the medium increased. This effects was alleviated by Ca2+ addition. Cd2+ content in seedlings was increased as the Cd2+ concentration in medium was increased and decreased sharply as Ca2+ was present in the culture medium. The study suggests liming of soil with CaCO3 to improve yield of many crops.
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收藏
页码：93 / 99
页数：7
相关论文
共 40 条
[1]  
Anderson C.A., The effect of calcium on the germination, growth and mineral nutrition of acidic and calcareous population of Eucalyptus obliqua L. Herit, Plant Soil, 69, pp. 213-223, (1982)
[2]  
Arnon D.I., Hoagland D.R., Crop production in artificial solutions and in soils with special references to factors influencing yields and absorption of inorganic nutrients, Soil Sci., 50, pp. 463-484, (1940)
[3]  
Baszynski T., Wajda L., Krol M., Wolinska D., Krupa Z., Tukendorf A., Photosynthetic activities of cadmium-treated tomato plants, Physiologia Plantarum, 48, pp. 365-370, (1980)
[4]  
Bazzaz M.B., Govindjee, Effects of cadmium nitrate on special characteristics and light reactions of chloroplasts, Environ. Lett., 6, pp. 1-12, (1974)
[5]  
Brucas C., Trifu M.C., Morphological changes induced by microelements, Mn, Zn, Co and Cd in tomato seedlings (Solanum lycopersicum), Stud. Univ. Babes-Bolyai Biol., 2, pp. 11-18, (1978)
[6]  
Culter J.M., Rains D.W., Characterization of cadmium uptake by plant tissue, PLANT PHYSIOLOGY, 54, pp. 67-71, (1974)
[7]  
Demarty M., Morvan C., Thillier M., Cadmium and the cell wall, Plant, Cell and Environment, 7, pp. 441-448, (1984)
[8]  
Fales F.W., The assimilation and degradation of carbohydrates by yeast cells, J. biol. Chem., 193, pp. 113-118, (1951)
[9]  
Foy C.D., Chaney R.L., White M.C., The physiology of metal toxicity in plants, Annual Review of Plant Physiology, 29, pp. 511-566, (1978)
[10]  
Gabbrielli R., Pandolfini T., Effect of Mg and Ca on the response to nickel toxicity in a serpentine endemic and nickel accumulating species, Physiol. Plant., 62, pp. 540-544, (1984)
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