The nature of the “sporogenes vitamin”, an essential growth factor for <i>Cl. sporogenes</i> and related organisms

Abstract

IN a series of papers on the nutritional requirements of bacteria [Knight and Fildes, 1933; Fildes, 1935; Fildes and Richardson, 1935] it has been shown that Cl. sporogenes and certain other obligate anaerobes may be grown on media containing salts and known amino-acids only when a trace of an unknown ethersoluble acid, which has been called the "sporogenes vitamin", is present.