Effect of montmorillonite and humate on growth and metabolic activity of some actinomycetes |
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Authors: | J.P. Martin Z. Filip K. Haider |
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Affiliation: | Department of Soil and Environmental Science, University of California, Riverside, CA 92502, U.S.A.;Department of Agricultural Microbiology, Justus Liebig University, 6300 Giessen, Fed. Rep. Germany;Institut für Biochemie des Bodens, Forschungsanstalt für Landwirtschaft, No. 3300 Braunschweig, Fed. Rep. Germany |
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Abstract: | In well-aerated culture solutions Ca-montmorillonite at 0.25% concentration markedly accelerated and increased growth, glucose consumption and CO2 evolution by various Streptomyces, Micromonospora and Nocardia species. The montmorillonite was a little more active than Ca-humate and was usually still but somewhat less effective when confined to dialysis tubing. Ca-exchange resin, Na2SiO3 and finely powdered CaCO3 exerted very little or no effect. In many cultures the relation of glucose consumption to biomass formation indicated a more efficient use of the glucose C for cell synthesis in the presence of clay. In other cultures the greater biomass formation was associated with a more rapid and complete utilization of the glucose present. |
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