Abstract
Summary
1. Whereas 5-bromouracil competitively inhibited the growth of S. faecalis in a medium supplemented with thymine, an incomplete, and non-competitive inhibition was observed in the presence of thymidine. 2. 5-Bromouracil prevented the disappearance of desoxyribose when resting S. faecalis cells are incubated with thymidine, and this is interpreted as signifying the formation of the desoxyriboside of 5-bromouracil. 3. Possible pathways of thymidine metabolism in S. faecalis are discussed.
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