[Bacterial cytostimulation by different effectors: purified antibacterial antibodies, concanavalin A and lipopolysaccharide (author's transl)].

The rate of growth of Gram- bacterial strains may be stimulated by various effectors: antibacterial antibodies, concanavalin A and specific lipopolysaccharide. Purification of the stimulating antibodies is brought about by saline dissociation of the bacteria-antibodies complex. Antibodies accountable for the cytostimulation would appear to be specific of the bacterial lipopolysaccharide.