抄録
The distribution in microorganisms of extracellular enzymes which degrade RNA into 5'-mononucleotides was studied. The degradation products of RNA were determined by using 5'-nucleotidase and adenosine deaminase.
It was found that the enzymes were produced by various microorganisms belonging to Streptomyces, Bacillus, Fungi imperfecti such as Fusarium, Helminthosporium, etc., and Ascomycetes such as Neurospora, Glomerella, Aspergillus, etc.