INDUCIBLE TRANSPORT SYSTEM FOR CITRULLINE IN STREPTOCOCCUS FAECALIS.

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.