title: Comparative immune diffusion at gelatin-agar interfaces: a presumptive test for protein and acidic polysaccharide antigens.
mesh_terms: D000362:Agar; D000937:Antigen-Antibody Reactions; D000941:Antigens; D003016:Clostridium perfringens / Q000276:immunology; D003017:Clostridium tetani / Q000276:immunology; D005293:Ferritins; D005780:Gelatin; D005779:Immunodiffusion; D066298:In Vitro Techniques; D008070:Lipopolysaccharides; D010944:Plants / Q000276:immunology; D011134:Polysaccharides; D011135:Polysaccharides, Bacterial; D011506:Proteins; D012231:Rhizobium / Q000276:immunology; D012475:Salmonella / Q000276:immunology; D013210:Staphylococcus / Q000276:immunology; D014027:Tobacco Mosaic Virus / Q000276:immunology; D014118:Toxins, Biological
chemical_list: D000941:Antigens; D008070:Lipopolysaccharides; D011134:Polysaccharides; D011135:Polysaccharides, Bacterial; D011506:Proteins; D014118:Toxins, Biological; D005780:Gelatin; D000362:Agar; D005293:Ferritins