Effect of d-Cycloserine on Transformation in Group H Streptococcus, Strain Challis

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RESUMO

d-Cycloserine (d-CS), a selective inhibitor of bacterial cell wall biosynthesis, inhibited transformation in group H streptococcus, strain Challis, by preventing the development of the competent state. The incubation of strain Challis cells with d-CS resulted in the production of a substance which inhibited the action of competence factor on these cells. d-CS had an enhancing effect on transformation when deoxyribonucleic acid uptake or phenotypic expression was allowed to occur in its presence.

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