INDUCIBLE TRANSPORT SYSTEM FOR CITRULLINE IN STREPTOCOCCUS FAECALIS

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Abstract
Bibb, William R. (University of North Carolina, Chapel Hill), and W. R. Straughan . Inducible transport system for citrulline in Streptococcus faecalis . J. Bacteriol. 87: 815–822. 1964.—With Streptococcus faecalis F24, it was demonstrated: that the citrulline transport mechanism, induced by growth in arginine, follows enzyme kinetics; that cell membranes from induced and noninduced cells differ considerably in their ability to adsorb citrulline; that protoplasts demonstrate a similar selectivity; and that, throughout various alterations of the growth medium and growth conditions, a consistent difference in citrulline uptake between induced and noninduced cells was present. A proposed explanation based on experimental findings is offered.