Der Einfluß von Agar- und Elektrolytkonzentration auf die Immunodiffusion von Tabakmosaik- und carnation latent Virus

The position (p) of precipitin bands in OUCHTERLONY’S test with tobacco mosaic virus and carnation latent virus depends upon the concentration of agar and electrolyte. This dependence results from the greater diffusional restriction of antigen in comparison to that of antibody. It is suggested that the effect of electrolyte concentration on the antigen in gel is mechanistically the same as the interaction between virus and agar in the sol state. Antisera against seven distantly related viruses of the potato virus S group reacted with carnation latent, potato M, and red clover vein mosaic viruses. This further demonstrates a serological relationship between viruses of the same shape but different normal length.