Abstract
Summary: The ability of micro‐organisms to use sulphamic acid in the form of the sodium salt as a source of nitrogen appeared to be generally uncommon, but certain strains of Aureobasidium (Pullularia) pullulans and Cephalosporium acremonium (?), and also two unidentified species of Achromobacter and Flavobacterium, were found to do so.A. pullulans utilized ammonium and sulphamate nitrogen equally well, but growth with sulphamate did not become vigorous until after a long period of induction, even though the inoculum was produced on a sulphamate medium. The fungi as well as the bacteria converted the sulphur of the sulphamate ion to sulphate in approximately equimolar proportion to the amount of assimilated nitrogen.Sulphamate utilizing strains of A. pullulans were found widely distributed on autumn leaf material but much less so in soil.
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