The Presence of Urease in the Nodules on the Roots of Leguminous Plants

Abstract

AFTER the discovery of urease in the Soya bean by Takeuchi in 1909, the presence of this remarkable urea-splitting enzyme was soon recognised in the seeds of many leguminous plants. On the other hand, while the occurrence of the enzyme in seeds from widely different varieties of plants has been recorded in recent years, its absence from the seeds of several Leguminosæ has also been noted.