Observations on the Adsorption of Caulobacter Bacteriophages containing Ribonucleic Acid

Abstract

About 250 strains of actinomycetes have been isolated from dark chestnut soil of the Northern Kazakhstan in crop rotation. Nitrogen fixing actinomycetes constituted 12% of the total number. Their productivity was rather low: from 0.11 o 1.77 mgN2/g of assimilated sucrose. But since their number is high, these microorganisms may play an important role in fixation of molecular nitrogen and maintenance of nitrogen equilibrium in soil during crop rotation.